Portable hair dryer

Information

  • Patent Grant
  • 6449870
  • Patent Number
    6,449,870
  • Date Filed
    Friday, September 15, 2000
    24 years ago
  • Date Issued
    Tuesday, September 17, 2002
    22 years ago
Abstract
The invention relates to a portable, cordless, hair dryer/blower that has an elongated hollow body portion with a mass center line and including therein a blower motor and a heating element and having a posterior end and an anterior end. A handle portion has a longitudinal axis extending substantially transversally from and along the mass center line of the elongated body portion.The handle portion includes switch controls for operating the heating element and the blower motor. A power source has a flat base and a mass center line that, when the power source is attached to the handle portion lies substantially along the longitudinal axis of the handle and the mass center line of the elongated body portion to provide power to the manual controls and to provide a flat base structure for enabling the hair dryer/blower to stand alone.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates in general to a hair dryer/blower and specifically to a portable hair dryer/blower that is so constructed as to enable it to physically stand alone on its own base and that has not only a voltage regulating circuit to control the heat produced by the element but also has a variable air inlet control, a variable air outlet control and a power control circuit that allows the heating element to obtain full heat and then pulses it to maintain the set heat at a less power consumption of the battery




2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 1.98




There are many different types of hair dryers/blowers. However, none are known by applicant that are portable. For instance, typical hair dryers are shown in U.S. Pat. Nos. 4,195,217, 5,555,637 and 5,701,681. All of them, however, have AC cords attached and are not portable and self-contained.




It would be desirable to have a hair dryer/blower that is portable and held in one hand to provide the user freedom with the other hand for actions such as simultaneously using additional styling tools thus aiding in the creation of different styling techniques. Further, it would be desirable to construct the hair dryer/blower such that it will stand by itself on its base and is balanced when held thereby offering improvements in ease of operation due to minimizing the effects of the combined weight on the wrist and arm of the user. It would also be desirable in such case to conserve battery power by enabling the heating element to attain full heat and then to pulse the voltage or current applied to it in such a ratio as to simply enable the heat to be maintained depending on blower speed and air input and output.




Also, it would e desirable to provide a unit as part of the hair dryer/blower that enables a fluid to be selectively dispensed at the anterior end thereof.




SUMMARY OF THE INVENTION




Thus, the present invention relates to a portable hair dryer/blower assembly that has a number of important features. The first is that it is portable and self-contained and includes an electric heat generating coil and blower assembly.




In addition, the battery assembly, with its weight, serves as a stand for the dryer/blower and provides a means to weight balance the complete assembly when used.




The power source may contain a built-in charger or a portion of the charger such as a rectifier unit to allow AC power to coupled directly to the battery source and allow multiple batteries to be simultaneously charged.




In addition, the battery could be simply charged with DC from a power transformer coupled to a wall assembly and providing DC output in a typical fashion.




The battery is secured once it is offered internally to the dryer handle and can be inserted in only the correct way.




Also, the batteries are of a higher than normal voltage to permit a lower and longer current demand for an equivalent wattage. The desired voltage is 14 volts or above.




The dryer also has an adjustable air inlet on the posterior end of the elongated hollow body portion for regulating the amount of air entering the elongated hollow body portion. This adjustable air inlet may include a series of parallel vanes or slats that are adjustable from a minimum separation from each other to allow a minimum airflow into the elongated hollow body portion and a maximum separation from each other to allow a maximum airflow into the elongated hollow body portion.




The novel dryer/blower may also include an adjustable air outlet in the anterior end of the elongated hollow body portion for regulating the amount of air exiting the elongated hollow body portion. This adjustable air outlet may comprise an adjustable iris similar to the F-stops on a camera so that, simply by rotating a ring, the iris petals are moved closer together or further apart to form a small or large eye through which the air can pass.




Thus, the dryer/blower has the ability to supply only ambient airflow at various cubic feet per minute by regulating the anterior and posterior air inlet and air outlet as well as the ability to supply heated air at various cubic feet per minute and temperatures.




The novel dryer/blower may have a circuit that pulse modulates current or voltage to the heating element providing a duty cycle that enables the stored static heat of the heating element to be used and periodically replenished. The advantage is longer heating element life, increased battery life, increased usefulness between charges, and reduced currents when using “deep discharge battery technology” which is very costly. This pulsing circuit is activated under certain conditions when the heat button is depressed. The blower motor is operated independent of the pulsing circuit used with the heating element.




This novel pulsing circuit provides a means of regulating or preventing the dryer from over-temperature and extending the life of the heating element.




Thus, it is an object of the present invention to provide a portable, cordless hair dryer/blower that has a capability of standing alone.




It is still another object of the present invention to provide a portable hair dryer/blower that has the weight balanced by aligning the mass center lines of the elongated body portion, the handle portion and the battery base portion to provide a unit that will stand on its base and that will have proper hand and arm balance during use.




It is yet another object of the present invention to provide an adjustable air inlet on the posterior end of the elongated hollow body portion for regulating the amount of air entering the elongated hollow body portion.




It is still another object of the present invention to provide adjustable air outlet on the anterior end of the elongated hollow body portion for regulating the amount of air exiting the elongated hollow body portion.




It is also an object of the present invention to provide the novel adjustable air outlet with an iris mechanism mounted on the anterior end of the elongated hollow body portion and having petal portions moveable with respect to each other to form a controllable variable size opening from a minimum to a maximum.




It is still another object of the present invention to provide a novel heating control circuit connected between the heating element and the control switches for enabling control of the amount of heating current applied to the heating element.




It is also an object of the present invention to provide a circuit for supplying maximum heating current to the heating element to raise the temperature of the heating element quickly to a desired temperature.




It is another object of the present invention to provide a pulser circuit connected to the base of a power transistor for gating a power transistor at a predetermined on and off rate to maintain the heating element at a desired temperature once it has reached that temperature.




It is yet another object of the present invention to provide a manual control for setting the desired off/on rate at which power is applied to the heating element to maintain a desired temperature such as low, medium and high temperatures.




It is also an object of the present invention to provide a pulser circuit for automatically applying an on/off conducting pulse to a power transistor to maintain the desired temperature of the heating element.




It is still another object of the present invention to provide a step-up circuit for enabling the voltage or current to be increased only when a pulse is applied to the power transistor to supply current or voltage to the heating element.




It is yet another object of the present invention to provide an attachment to the hair dryer/blower to enable a fluid spray to be selectively dispensed at the anterior end of the elongated hollow body portion.




Thus, the invention relates to a portable, cordless hair dryer/blower comprising an elongated hollow body portion having mass center line and including a blower motor and a heating element; a posterior end and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from and along the mass center line of the elongated body portion, the handle portion including switch controls for operating the heating element and the blower motor: and a power source having a flat base and a mass center line aligned with the mass center line of the elongated hollow body portion for attachment to the handle portion substantially along its longitudinal axis such that (1) power is applied to the manual controls and (2) the flat base provides a platform structure for enabling the hair dryer/blower to stand alone.











BRIEF DESCRIPTION OF THE DRAWINGS




These and other features of the present invention will be more fully understood when taken in conjunction with the following Detailed Description of the Drawings in which like numerals represent like elements and in which:





FIG. 1

is a perspective view of the novel hair dryer/blower of the present invention;





FIG. 2

is a perspective view of the novel battery that can be attached to the dryer/blower as shown in

FIG. 1

;





FIG. 3

is a schematic representation of a converter for supplying either AC or DC to the battery for charging thereof;





FIG. 4

illustrates adjustable vanes on the posterior end of the elongated hollow body portion of the hair dryer/blower for adjusting the air into the unit:





FIG. 5A

is a block diagram of the control circuit for controlling the power to the blower fan and to the heating element;





FIG. 5B

is a circuit illustrating one circuit embodiment for quickly heating the heating element and then supplying pulsed current or voltage to maintain the heat:





FIG. 5C

illustrates the details of the pulsing circuit illustrated in

FIG. 5B

;





FIG. 5D

illustrates in waveform


1


the oscillator output and in waveform


2


the output of a circuit illustrating a 1:4 ratio for applying pulses to the heating element;





FIG. 5E

is a schematic illustration of the output circuit with a manual switch control being set to high, medium and low to provide pulses and pulse ratios to the power transistor that supplies voltage and current to the heating element;





FIG. 5F

illustrates an circuit for supplying pulses to the power transistor to automatically maintain a desired heater temperature utilizing an innovative control circuit;





FIG. 5G

illustrates a circuit for stepping-up the voltage or current only during the time the pulses are applied to the heating element.





FIG. 5H

illustrates the stepped-up voltage pulses that are applied to the heating element by the circuit of

FIG. 5G

;





FIG. 6

is a general perspective view of a hair dryer/blower illustrating a device on the anterior portion for controlling the amount of airflow exiting the nozzle or anterior portion of the blower and including a fluid dispensing unit formed as a part thereof.





FIG. 7

illustrates an iris in the wide-open position that is controlled by the adjustment ring in

FIG. 6

;





FIG. 8

illustrates the iris in the minimum closed position as adjusted by the adjustment ring in

FIG. 6

;





FIG. 9

illustrates an adjustment device of the type shown in

FIGS. 6

,


7


and


8


that can be attached in a retrofit manner to an existing dryer anterior nozzle; and





FIG. 10

is a perspective view of a novel blower/dryer that has a fluid dispenser that can be coupled to the handle portion in a retrofit manner and having a nozzle extending to the anterior end of the blower/dryer such that when the container, which is pliable or flexible, is squeezed, fluid can be ejected along the anterior portion, or forward end, of the blower/dryer.











DETAILED DESCRIPTION OF THE INVENTION





FIG. 1

is a perspective view of the novel hair dryer/blower


10


including an elongated hollow body portion


12


, a handle portion


14


and a battery base portion


16


. It will be noted that the mass center line


18


of each of the elongated hollow body portion


12


, handle


14


, and battery base


16


are all in alignment thus allowing the unit


10


to be balanced and enables the hair dryer/blower to stand alone on the base


16


. In addition, by the alignment of the mass center lines of the elongated hollow body portion


12


, the handle


14


and the base


16


, and proper weight distribution of the hollow body portion


12


and base


16


as can be done by those skilled in the art, balance is provided to enable the unit to be used with minimum strain on the arm and hand of the user.




The elongated hollow body portion


12


has a heating clement


20


, a blower motor


22


and a pulsing circuit


24


which will be described in detail hereafter. The elongated hollow body portion


12


also has a posterior end


26


and an anterior or front end


28


.




Handle


14


also has a switch control pedestal


30


and a mechanism


32


, well known in the art, for locking the battery/base unit


16


to the handle


14


. The switch pedestal


30


includes a diode light


34


, usually of green color but which may be of any desired color. a switch


36


(S


1


) that controls power only to the blower motor and a switch


38


(S


2


) that controls power to both the blower motor and the heating element. A manual control switch


40


, which will be explained in detail hereafter, has multiple positions such as low, medium and high that can be selected by the user to designate the heat desired to be produced by the heating element


20


.





FIG. 2

discloses the base/power unit


16


which includes a battery


42


and stem


44


that can be inserted into handle


14


of the dryer/blower


10


shown in FIG.


1


and electrical terminals


46


to be received by appropriate terminals (not shown) in the handle


14


of the dryer/blower


10


illustrated in FIG.


1


. The battery/base


16


may be constructed such that the stem


44


can be inserted in the handle


14


in only one direction. This may take many different forms such as a slot


48


on one side of the connectors


46


. Other versions could be to shape the cross-sectional area of the stem


44


to be inserted in a corresponding receptacle shape in the handle


14


as shown in FIG.


1


. The battery/base


16


may include a connector jack


50


for receiving a charging connector from the device in FIG.


3


. As stated previously, that charging connector may be an AC voltage from an alternating current source if the battery/base


16


has a rectifier unit


52


. This would allow a unit to be charged while it is mounted on the blower/dryer


10


as well as an additional separate unit that can be charged at the same time. The weight of the base


16


is in balance with the weight of the elongated body portion. Such balance can be easily achieved by those skilled in the art.




Note in

FIG. 3

that an plug-in unit


54


could generate either AC or DC power output voltage on jacks


56


and


58


. If the battery unit has its own rectifier unit


52


, then the jacks


56


and


58


in

FIG. 3

may generate AC voltage. If the battery unit is selected that does not have a rectifier


52


, then the plug-in unit


54


must be an AC to DC converter and the jacks


56


and


58


would generate DC voltage.




It will be noted in

FIG. 1

that the handle portion


14


has a longitudinal axis extending substantially transversally from and along the mass center line


18


of the elongated body portion


12


. Again, the base unit


16


in

FIG. 1

also has a mass center line that, when attached to the handle portion, lies substantially along the longitudinal axis of the mass center line


18


such that (1) power can be supplied to the manual controls


30


and (2) the flat base


16


may provide a structure for enabling the hair dryer/blower to stand alone.





FIG. 4

illustrates an enlarged view of the posterior end


26


of the blower/dryer


10


shown in FIG.


1


. It will be noted that it has a plurality of adjustable vanes


60


that may be moved toward and away from each other by moving a lever


27


for regulating the amount of air entering the elongated hollow body portion


12


. The adjustable air inlet comprises a series of parallel vanes


60


that are adjustable from a minimum separation from each other to allow a minimum airflow into the elongated hollow body portion to a maximum separation from each other to allow a maximum airflow into the elongated hollow body portion


12


.




The anterior or forward end


28


of the hollow body portion


12


also has an adjustable air inlet as will be explained hereafter in relation to

FIGS. 6

,


7


,


8


and


9


for regulating the amount and column width of air exiting the elongated hollow body portion


12


.





FIG. 5A

discloses the basic electrical circuit for controlling power to the blower fan and to the heating element. The basic circuit


62


includes the battery base portion


16


with the battery cells


42


therein and, if desired, the rectifier unit


52


. It also has the jack


50


for connecting a charger thereto. When the unit is plugged into a power source, the power is immediately supplied to the LED


34


which indicates that the battery has sufficient power to operate the unit. When switch button


36


(S


1


) is depressed, the fan motor or blower


22


is operated alone. When switch


38


(S


2


) is closed, two sets of contacts are closed: one coupling power to the fan


22


and the other coupling power to the heating element


20


through a pulser circuit


64


, if desired. The pulser circuit


64


will be described hereafter.




The pulser circuit


64


is shown in detail in FIG.


5


B. When the unit is first turned on and the switch


38


(S


2


) is depressed, both the heating element and the blower motor are energized and it is desired that the heating element heat as quickly as possible. Thus, as shown in

FIG. 5B

, when switch


38


is closed, conductor


39


is coupled directly to the input of transistor


66


. The temperature of the heating element


20


is monitored by a temperature sensor, such as a thermocouple or thermistor. The temperature sensor


68


is coupled to a comparator


70


. Another voltage reference


72


is coupled to the other input of the comparator representing the proper or maximum heating temperature of the element


20


. Since there is no heat at first. there is no output from comparator


70


. That lack of signal is detected by inverting diode


73


which generates an output signal on line


76


that is coupled to the base


78


of power transistor


66


causing it to conduct. Thus, full voltage is applied to heating element


20


to provide maximum heating in minimum time. As soon as the element is heated to the desired temperature, and that is sensed by sensor


68


. an output signal is generated by comparator


70


that causes inverting diode


73


to remove its signal on output line


76


thus removing the continuous signal from the base


78


of the transistor


66


. At this time, the pulsing circuit


80


, which is isolated from the inverting diode


73


by isolating diode


82


, provides pulses to the base


78


of transistor


66


to maintain the heat attained by heating element


20


without having a continuous voltage applied thereto.




The pulser circuit


80


is shown in detail in FIG.


5


C. An oscillator


84


applies pulses to a circuit


86


that could be a shift register, a counter, or a divider circuit as shown in U.S. Pat. No. 4,571,588. It could be a 4-bit shift register for example only. The input switch


40


that is used to select low, medium and high heat, causes a selected bit from one stage of the circuit


86


to be connected to the base


78


of the transistor


66


thus causing the transistor


66


to be pulsed on and off at a given rate. An example is illustrated in FIG.


5


D. The oscillator is shown to have 5 pulses in waveform


1


of

FIG. 5D

while the circuit


86


generates an output pulse only once for every 4 input pulses as shown in waveform


2


which means there is a 4:1 ratio of the operating time of transistor


66


. For every 4 pulses received by the circuit


86


, only 1 is gated to the transistor


66


allowing the transistor


66


to power the heating element


20


only ¼ of the time.




Other ratios could be selected as illustrated by the circuit in

FIG. 5E

where the oscillator


84


is feeding the pulses to the circuit


86


. At the output of each of the 4 stages or dividers of the circuit


86


, a switch (S


1


-S


5


) is connected to the base


78


of the transistor


66


. If, for instance, switch S


1


is selected as the high heat position, then circuit


86


, at stage


87


, will produce an output with every pulse received and thus high heat will be applied to the base


78


of transistor


66


. If stage


88


is selected by closing switch


3


or placing the switch


40


in the medium position, then third stage


88


will be selected and a pulse will be generated through switch S


3


to the base


78


of transistor


66


with every third pulse of the oscillator or a 1:3 ratio. In like manner, if stage


90


is selected with the selector position switch


40


in the low position, then every fourth pulse presented to circuit


86


will be counted and be produced through switch S


5


, the low position, to the base


78


of transistor


66


thus having a 1:4 heating ratio. It can be readily seen that such a circuit can not only control the amount of heat generated by the heating element


20


but also maintain the heat with less power requirements since it simply adds enough heat at periodic intervals to maintain a given heat. Thus, power is saved and the unit is more economically efficient and the battery life is prolonged.




If an automatic temperature control is desired, then the circuit of

FIG. 5F

should be used. As can be seen in

FIG. 5F

, an integrated circuit controller


92


is added as an integrated circuit chip with a memory


94


that stores a table comparing detected temperature versus counter


86


output. When the hand controller


40


is set to a position of low, medium or high, that position is detected by the integrated circuit controller


92


which then compares the temperature table with the actual temperature received from sensor


68


and through line


96


causes the proper output of counter


86


to be applied to the base of transistor


66


to supply the proper voltage or current to the heating element


20


to cause it to reach the set temperature.




It may be desirable to increase the current or voltage to the heating element during the time the pulse is applied through the transistor


66


. Thus, in

FIG. 5G

, each time pulser circuit


80


applies a pulse to the base


78


of transistor


66


, it also applies a pulse to a voltage or current step-up device


98


to increase the current or voltage to the heating clement


20


. Such voltage step-up device could be, for instance, a piezoelectric device. well known in the art, that, when voltage is applied to the device in one direction, causes a step-up voltage that may be detected in another direction of the piezoelectric device. Voltage and current step-up devices are well known in the art and will not be described in any further detail here.





FIG. 5H

illustrates how the pulse is increased in magnitude. Normally the pulse is at a height


100


but a step-up to a height


102


is caused by the step-up unit


98


. This increases the speed of heating of the element to the desired temperature. Further, to maintain a desired heat with such increased pulse could mean a higher pulse ratio could be used. That is, for example only, 1 pulse out of 5 instead of 1 pulse out of 3 or 4 could be used.





FIGS. 6

,


7


,


8


and


9


disclose the novel adjustable air outlet device on the anterior or forward end of the elongated hollow body portion. Thus, the exterior surface of the anterior end


28


of the elongated hollow body portion


12


has an adjustment ring


104


thereon which, by being rotated, can control the diameter of the outlet orifice of the dryer/blower


10


. The movement of the adjustment ring


104


controls, in a well-known manner, a series of petals forming an iris to cause the iris petals


106


to be fully opened as shown in FIG.


7


and closed to a minimum position as shown in

FIG. 8

in a well-known manner. Such an adjustment, of course, is needed by the user depending upon the task being performed with the blower/dryer at the time.




Such an adjustment device can be in the form of a retrofit collar


108


as shown in

FIG. 9

in the form of a hollow cylindrical portion


108


having at least a first portion


110


having an inside diameter sufficient for press-fit mating on the anterior end


28


of the elongated hollow body portion


12


. It has a second portion


112


extending beyond the anterior portion or end


28


of the elongated body


12


with the adjustment iris


106


being formed on the interior of the second portion


112


of the hollow cylindrical portion


108


and the iris adjusting ring


104


being formed on the exterior of the second portion


112


of the hollow cylindrical portion


108


for manually adjusting the iris opening from a minimum diameter to a maximum diameter by moving the adjusting ring clockwise or counterclockwise. Thus, this embodiment can be used with existing dryers, the only need being to have the inside diameter of the first portion of the hollow cylindrical portion


110


of the proper size to enable the press fit with the existing dryer anterior portion


28


.




A novel feature of the blower/dryer of the present invention is illustrated in FIG.


6


and FIG.


10


. Many times the user of the blower/dryer, while styling hair needs to have moisture sprayed on the hair at different times during the process. In the embodiment shown in

FIG. 6

, the handle


14


is designed to enable a pressurized fluid containing cartridge


126


to be inserted therein. When trigger button


128


is selectively depressed, a valve


130


is opened in any well-known manner allowing fluid under pressure to be forced through tube


122


to the outer end


28


of the blower/dryer. Valve


130


is shown as a flapper valve for purposes of simplicity. Obviously, any well known type of valve can be used.




In the embodiment shown in

FIG. 10

, a retrofit fluid spray device


114


is removably attached to the blow dryer handle


14


for enabling a fluid spray to be selectively dispensed at the anterior end


28


of the blower/dryer. As can be seen in

FIG. 10

, the fluid spray device


114


comprises a pliable fluid container


116


having a closeable opening I


1




8


for inserting a fluid therein and straps


120


and


121


for attaching the container


114


to the handle portion


14


. Such straps could be hook-and-loop straps for example. Extending from the pliable fluid container


116


is an elongated tube


122


that extends to the outer end


124


of the blower/dryer where the spray can be sprayed by the user simply squeezing the pliable container


116


. The elongated tube


122


preferably extends along the profile of the elongated hollow body


12


as for instance on the underside as shown to the anterior end thereof such that when the pliable container is squeezed, fluid is ejected at the anterior end of the elongated hollow body as needed. While the embodiment shown in

FIG. 6

describes a pressurized container, it will be obvious to those skilled in the art that a well-known trigger operated device could be used wherein when the trigger is depressed and released, fluid is drawn from the container and is released under pressure. Such devices are found in children's water pistols.




Thus, there has been disclosed a novel hair dryer/blower that is portable, self-contained, having a controllable heating element temperature including manual or automatic control by the use of a novel pulsing circuit that has a variable airflow inlet control at the posterior end of the blower/dryer and a controllable air outlet opening at the anterior or forward end. The device also has an attachable liquid spray unit which can be strapped to the handle and when squeezed, fluid ejected through a tube that extends through the outer end of the dryer/blower.




While preferred embodiments have been shown and described, various modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustration and not limitation.




The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed.



Claims
  • 1. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a mass center line and including a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from and along said mass center line of said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base and a mass center line for attachment to said handle portion substantially along its longitudinal axis and in alignment with the mass center line of said elongated hollow body portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; and an adjustable air inlet on the posterior end of said elongated hollow body portion for regulating the amount of air entering said elongated hollow body portion.
  • 2. The hair dryer/blower of claim 1 wherein said adjustable air inlet comprises:a series of parallel vanes adjustable from a minimum separation from each other, to allow a minimum airflow into said elongated hollow body portion, to a maximum separation from each other to allow a maximum airflow into said elongated hollow body portion.
  • 3. The hair dryer/blower of claim 1 further including:an adjustable air outlet on the anterior end of said elongated hollow body portion for regulating the amount of air exiting said elongated hollow body portion.
  • 4. The hair dryer/blower of claim 3 wherein said adjustable air outlet comprises:an iris mechanism mounted on the anterior end of said elongated hollow body portion and having petal portions moveable with respect to each other to form a continually variable size opening from a minimum to a maximum; and an adjusting device coupled to said iris petals for enabling manual adjustment of said iris opening size.
  • 5. The hair dryer/blower of claim 4 wherein said adjustable air outlet comprises:a hollow cylinder having at least a first portion of an inside diameter sized for press-fit mounting on the anterior end of said elongated hollow body portion; a second portion extending beyond said anterior end; and said adjustable iris formed on the interior of said second portion of said hollow cylinder and said iris adjusting device being formed on the exterior of said second portion of said hollow cylinder for manually adjusting said iris opening by moving said adjusting device.
  • 6. The hair dryer/blower of claim 1 further including an electrical circuit coupled to and controlled by said switch controls to selectively power said blower motor and said heating element.
  • 7. The hair dryer/blower of claim 6 wherein said electrical circuit comprises:at least a first switch for electrically connecting said power source to said heater and said blower simultaneously; and at least a second switch for electrically connecting said power source only to said blower fan.
  • 8. The hair dryer/blower of claim 1 further comprising a heating control circuit connected between said heating element and said switch control for enabling control of the amount of heating current applied to said heating element.
  • 9. The hair dryer/blower of claim 8 further including a circuit for supplying maximum heating current to said heating element to cause said heating element to reach the desired temperature in minimum time.
  • 10. The hair dryer/blower of claim 9 wherein said circuit for supplying maximum current comprises:a sensor for sensing the heating element temperature and generating a corresponding voltage; a comparator for comparing a reference voltage to said sensed voltage and providing a first output; and a power transistor having a base coupled to said comparator for continually enabling maximum voltage to be supplied to said heating element to enhance heating of said heating element as long as said first output is provided.
  • 11. The hair dryer/blower of claim 10 further including:a pulser circuit connected to said base of said power transistor for providing a gating pulse to said power transistor at a predetermined on/off rate to maintain said heating element at said desired temperature after said desired temperature is reached.
  • 12. The hair dryer/blower of claim 11 further including a manual control for setting the desired on/off rate at which power is applied to said heating element to maintain a desired temperature.
  • 13. The hair driver/blower of claim 12 further including:an oscillator circuit for generating pulses; a circuit for receiving said oscillator pulses; multiple serial stages in said circuit, each stage generating an output pulse for a particular count; and a multiple position switch for selectively connecting one circuit stage output pulse to the base of said power transistor to cause said predetermined on/off rate of said power transistor with the ratio of power pulses supplied to said heating element to obtain a desired temperature of said heating element; and means for manually positioning said switch to a desired pulse rate.
  • 14. The hair dryer/blower of claim 11 further including a pulser circuit for automatically applying on/off conducting pulses to said power transistor at a selected ratio to maintain said desired temperature of said heating element.
  • 15. The hair dryer/blower of claim 14 comprising:an integrated circuit controller having a memory; a table stored in said memory indicating heating element temperature versus pulse rate; said heating element heat sensor generated voltage means coupled to said integrated circuit controller; and said integrated circuit controller forming said multiple position switch to automatically pulse said power transistor on and off at said selected ratio to maintain a desired selected temperature.
  • 16. The hair dryer/blower of claim 11 further comprising:a voltage step-up circuit coupled between said power transistor and said heating element; and said pulse circuit output being coupled to said voltage step-up circuit for enabling said voltage step-up to occur only when said gating pulse is applied to said power transistor.
  • 17. The hair dryer/blower of claim 1 wherein said power source contains at least one rechargeable battery.
  • 18. The hair dryer/blower of claim 17 wherein said battery supplies at least 14 volts to said switch controls.
  • 19. The hair dryer/blower of claim 17 including a DC charger connectable to said base for supplying a DC voltage to charge said at least one battery.
  • 20. The hair dryer/blower of claim 17 further including:an AC/DC rectifier circuit forming part of said power source; and said AC/DC rectifier receiving the output of an AC charging circuit for enabling DC voltage to be generated for charging said at least one battery.
  • 21. The hair dryer/blower of claim 1 wherein said power source can be attached to said handle portion in only one position.
  • 22. The hair dryer/blower of claim 1 further including a fluid spray device for enabling a fluid spray to be selectively dispensed at the anterior end of said elongated hollow body.
  • 23. The hair dryer/blower of claim 22 wherein said fluid spray device comprises:a pliable fluid container; an opening in said container for inserting fluid therein; straps extending from said container for attaching said container to said blower/dryer handle; and an elongated tube having one end connected to at least one container opening and the other end extending along the profile of said elongated hollow body to the anterior end thereof such that when said pliable container is squeezed, fluid is sprayed at the anterior end of said elongated hollow body.
  • 24. The hair dryer/blower of claim 22 wherein said fluid spray device comprises:a space in said handle portion for receiving a container having pressurized fluid therein, an elongated tube extending from the handle space to the anterior end of said blower/dryer, a valve for coupling a received container to said elongated tube, and a manually generated means for selectively opening and closing said valve to selectively enable fluid to be sprayed at the anterior end of said elongated body.
  • 25. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base for attachment to said handle portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; and a fluid spray device for enabling a fluid spray to be selectively dispensed at the anterior end of said elongated hollow body; and an adjustable air inlet on the posterior end of said elongated hollow body portion for regulating the amount of air entering said elongated hollow body portion.
  • 26. The hair dryer/blower of claim 25 wherein said fluid spray device comprises:a pliable fluid container: an opening in said container for inserting fluid therein; straps extending from said container for attaching said container to said blower/dryer handle; and an elongated tube having one end connected to at least one container opening and the other end extending along the profile of said elongated hollow body to the anterior end thereof such that when said pliable container is squeezed, fluid is sprayed at the anterior end of said elongated hollow body.
  • 27. The hair dryer/blower of claim 25 wherein said fluid spray device comprises:a space in said handle portion for receiving a container having pressurized fluid therein: an elongated tube extending from the handle space to the anterior end of said blower/dryer; a valve for coupling a received container to said elongated tube; and a manually generated means for selectively opening and closing said valve to selectively enable fluid to be sprayed at the anterior end of said elongated body.
  • 28. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a mass center line and including a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from and along said mass center line of said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base and a mass center line for attachment to said handle portion substantially along its longitudinal axis and in alignment with the mass center line of said elongated hollow body portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; a heating control circuit connected between said heating element and said switch control for enabling control of the amount of heating current applied to said heating element; and a circuit for supplying maximum heating current to said heating element to cause said heating element to reach the desired temperature in minimum time, said circuit for supplying maximum heating current further comprises: a sensor for sensing the heating element temperature and generating a corresponding voltage; a comparator for comparing a reference voltage to said sensed voltage and providing a first output; and a power transistor having a base coupled to said comparator for continually enabling maximum voltage to be supplied to said heating element to enhance heating of said heating element as long as said first output is provided.
  • 29. The hair dryer/blower of claim 28 further including:an adjustable air inlet on the posterior end of said elongated hollow body portion for regulating the amount of air entering said elongated hollow body portion.
  • 30. The hair dryer/blower of claim 29 wherein said adjustable air inlet comprises:a series of parallel vanes adjustable from a minimum separation from each other, to allow a minimum airflow into said elongated hollow body portion, to a maximum separation from each other to allow a maximum airflow into said elongated hollow body portion.
  • 31. The hair dryer/blower of claim 29 further including:a pulser circuit connected to said base of said power transistor for providing a gating pulse to said power transistor at a predetermined on/off rate to maintain said heating element at said desired temperature after said desired temperature is reached.
  • 32. The hair dryer/blower of claim 31 further including a manual control for setting the desired on/off rate at which power is applied to said heating element to maintain a desired temperature.
  • 33. The hair dryer/blower of claim 32 further including:an oscillator circuit for generating pulses; a circuit for receiving said oscillator pulses; multiple serial stages in said circuit, each stage generating an output pulse for a particular count; and a multiple position switch for selectively connecting one circuit stage output pulse to the base of said power transistor to cause said predetermined on/off rate of said power transistor with the ratio of power pulses supplied to said heating element to obtain a desired temperature of said heating element; and means for manually positioning said switch to a desired pulse rate.
  • 34. The hair dryer/blower of claim 31 further including a pulser circuit for automatically applying on/off conducting pulses to said power transistor at a selected ratio to maintain said desired temperature of said heating element.
  • 35. The hair dryer/blower of claim 34 comprising:an integrated circuit controller having a memory; a table stored in said memory indicating heating element temperature versus pulse rate; said heating element heat sensor generated voltage means coupled to said integrated circuit controller; and said integrated circuit controller forming said multiple position switch to automatically pulse said power transistor on and off at said selected ratio to maintain a desired selected temperature.
  • 36. The hair dryer/blower of claim 31 further comprising:a voltage step-up circuit coupled between said power transistor and said heating element; and said pulse circuit output being coupled to said voltage step-up circuit for enabling said voltage step-up to occur only when said gating pulse is applied to said power transistor.
  • 37. The hair dryer/blower of claim 28 further including:an adjustable air outlet on the anterior end of said elongated hollow body portion for regulating the amount of air exiting said elongated hollow body portion.
  • 38. The hair dryer/blower of claim 37 wherein said adjustable air outlet comprises:an iris mechanism mounted on the anterior end of said elongated hollow body portion and having petal portions moveable with respect to each other to form a continually variable size opening from a minimum to a maximum; and an adjusting device coupled to said iris petals for enabling manual adjustment of said iris opening size.
  • 39. The hair dryer/blower of claim 38 wherein said adjustable air outlet comprises:a hollow cylinder having at least a first portion of an inside diameter sized for press-fit mounting on the anterior end of said elongated hollow body portion; a second portion extending beyond said anterior end; and said adjustable iris formed on the interior of said second portion of said hollow cylinder and said iris adjusting device being formed on the exterior of said second portion of said hollow cylinder for manually adjusting said iris opening by moving said adjusting device.
  • 40. The hair dryer/blower of claim 28 further including an electrical circuit coupled to and controlled by said switch controls to selectively power said blower motor and said heating element.
  • 41. The hair dryer/blower of claim 40 wherein said electrical circuit comprises:at least a first switch for electrically connecting said power source to said heater and said blower simultaneously; and at least a second switch for electrically connecting said power source only to said blower fan.
  • 42. The hair dryer/blower of claim 28 wherein said power source contains at least one rechargeable battery.
  • 43. The hair dryer/blower of claim 42 wherein said battery supplies at least 14 volts to said switch controls.
  • 44. The hair dryer/blower of claim 42 including a DC charger connectable to said base for supplying a DC voltage to charge said at least one battery.
  • 45. The hair dryer/blower of claim 42 further including:an AC/DC rectifier circuit forming part of said power source; and said AC/DC rectifier receiving the output of an AC charging circuit for enabling DC voltage to be generated for charging said at least one battery.
  • 46. The hair dryer/blower of claim 28 wherein said power source can be attached to said handle portion in only one position.
  • 47. The hair dryer/blower of claim 28 further including a fluid spray device for enabling a fluid spray to be selectively dispensed at the anterior end of said elongated hollow body.
  • 48. The hair dryer/blower of claim 47 wherein said fluid spray device comprises:a pliable fluid container; an opening in said container for inserting fluid therein; straps extending from said container for attaching said container to said blower/dryer handle; and an elongated tube having one end connected to at least one container opening and the other end extending along the profile of said elongated hollow body to the anterior end thereof such that when said pliable container is squeezed, fluid is sprayed at the anterior end of said elongated hollow body.
  • 49. The hair dryer/blower of claim 47 wherein said fluid spray device comprises:a space in said handle portion for receiving a container having pressurized fluid therein; an elongated tube extending from the handle space to the anterior end of said blower/dryer; a valve for coupling a received container to said elongated tube; and a manually generated means for selectively opening and closing said valve to selectively enable fluid to be sprayed at the anterior end of said elongated body.
  • 50. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base for attachment to said handle portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; a fluid spray device for enabling a fluid spray to be selectively dispensed at the anterior end of said elongated hollow body; a heating control circuit connected between said heating element and said switch control for enabling control of the amount of heating current applied to said heating element; and a circuit for supplying maximum heating current to said heating element to cause said heating element to reach the desired temperature in minimum time, said circuit for supplying maximum heating current further comprises: a sensor for sensing the heating element temperature and generating a corresponding voltage; a comparator for comparing a reference voltage to said sensed voltage and providing a first output; and a power transistor having a base coupled to said comparator for continually enabling maximum voltage to be supplied to said heating element to enhance heating of said heating element as long as said first output is provided.
  • 51. The hair dryer/blower of claim 50 wherein said fluid spray device comprises:a pliable fluid container; an opening in said container for inserting fluid therein; straps extending from said container for attaching said container to said blower/dryer handle; and an elongated tube having one end connected to at least one container opening and the other end extending along the profile of said elongated hollow body to the anterior end thereof such that when said pliable container is squeezed, fluid is sprayed at the anterior end of said elongated hollow body.
  • 52. The hair dryer/blower of claim 50 wherein said fluid spray device comprises:a space in said handle portion for receiving a container having pressurized fluid therein; an elongated tube extending from the handle space to the anterior end of said blower/dryer; a valve for coupling a received container to said elongated tube; and a manually generated means for selectively opening and closing said valve to selectively enable fluid to be sprayed at the anterior end of said elongated body.
  • 53. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a mass center line and including a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from and along said mass center line of said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base and a mass center line for attachment to said handle portion substantially along its longitudinal axis and in alignment with the mass center line of said elongated hollow body portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; and a fluid spray device comprising: a pliable fluid container; an opening in said container for inserting fluid therein; straps extending from said container for attaching said container to said blower/dryer handle; and an elongated tube having one end connected to at least one container opening and the other end extending along the profile of said elongated hollow body to the anterior end thereof such that when said pliable container is squeezed, fluid is sprayed at the anterior end of said elongated hollow body.
  • 54. The hair dryer/blower of claim 53 further including:an adjustable air inlet on the posterior end of said elongated hollow body portion for regulating the amount of air entering said elongated hollow body portion.
  • 55. The hair dryer/blower of claim 54 wherein said adjustable air inlet comprises:a series of parallel vanes adjustable from a minimum separation from each other, to allow a minimum airflow into said elongated hollow body portion, to a maximum separation from each other to allow a maximum airflow into said elongated hollow body portion.
  • 56. The hair dryer/blower of claim 53 further including:an adjustable air outlet on the anterior end of said elongated hollow body portion for regulating the amount of air exiting said elongated hollow body portion.
  • 57. The hair dryer/blower of claim 56 wherein said adjustable air outlet comprises:an iris mechanism mounted on the anterior end of said elongated hollow body portion and having petal portions moveable with respect to each other to form a continually variable size opening from a minimum to a maximum; and an adjusting device coupled to said iris petals for enabling manual adjustment of said iris opening size.
  • 58. The hair dryer/blower of claim 57 wherein said adjustable air outlet comprises:a hollow cylinder having at least a first portion of an inside diameter sized for press-fit mounting on the anterior end of said elongated hollow body portion; a second portion extending beyond said anterior end; and said adjustable iris formed on the interior of said second portion of said hollow cylinder and said iris adjusting device being formed on the exterior of said second portion of said hollow cylinder for manually adjusting said iris opening by moving said adjusting device.
  • 59. The hair dryer/blower of claim 53 further including an electrical circuit coupled to and controlled by said switch controls to selectively power said blower motor and said heating element.
  • 60. The hair dryer/blower of claim 59 wherein said electrical circuit comprises:at least a first switch for electrically connecting said power source to said heater and said blower simultaneously; and at least a second switch for electrically connecting said power source only to said blower fan.
  • 61. The hair dryer/blower of claim 53 further comprising a heating control circuit connected between said heating element and said switch control for enabling control of the amount of heating current applied to said heating element.
  • 62. The hair dryer/blower of claim 61 further including a circuit for supplying maximum heating current to said heating element to cause said heating element to reach the desired temperature in minimum time.
  • 63. The hair dryer/blower of claim 62 wherein said circuit for supplying maximum current comprises:a sensor for sensing the heating element temperature and generating a corresponding voltage; a comparator for comparing a reference voltage to said sensed voltage and providing a first output; and a power transistor having a base coupled to said comparator for continually enabling maximum voltage to be supplied to said heating element to enhance heating of said heating element as long as said first output is provided.
  • 64. The hair dryer/blower of claim 63 further including:a pulser circuit connected to said base of said power transistor for providing a gating pulse to said power transistor at a predetermined on/off rate to maintain said heating element at said desired temperature after said desired temperature is reached.
  • 65. The hair dryer/blower of claim 64 further including a manual control for setting the desired on/off rate at which power is applied to said heating element to maintain a desired temperature.
  • 66. The hair dryer/blower of claim 65 further including:an oscillator circuit for generating pulses; a circuit for receiving said oscillator pulses; multiple serial stages in said circuit, each stage generating an output pulse for a particular count; and a multiple position switch for selectively connecting one circuit stage output pulse to the base of said power transistor to cause said predetermined on/off rate of said power transistor with the ratio of power pulses supplied to said heating element to obtain a desired temperature of said heating element; and means for manually positioning said switch to a desired pulse rate.
  • 67. The hair dryer/blower of claim 64 further including a pulser circuit for automatically applying on/off conducting pulses to said power transistor at a selected ratio to maintain said desired temperature of said heating element.
  • 68. The hair dryer/blower of claim 67 comprising:an integrated circuit controller having a memory; a table stored in said memory indicating heating element temperature versus pulse rate; said heating element heat sensor generated voltage means coupled to said integrated circuit controller; and said integrated circuit controller forming said multiple position switch to automatically pulse said power transistor on and off at said selected ratio to maintain a desired selected temperature.
  • 69. The hair dryer/blower of claim 64 further comprising:a voltage step-up circuit coupled between said power transistor and said heating element; and said pulse circuit output being coupled to said voltage step-up circuit for enabling said voltage step-up to occur only when said gating pulse is applied to said power transistor.
  • 70. The hair dryer/blower of claim 53 wherein said power source contains at least one rechargeable battery.
  • 71. The hair dryer/blower of claim 70 wherein said battery supplies at least 14 volts to said switch controls.
  • 72. The hair dryer/blower of claim 70 including a DC charger connectable to said base for supplying a DC voltage to charge said at least one battery.
  • 73. The hair dryer/blower of claim 71 further including:an AC/DC rectifier circuit forming part of said power source; and said AC/DC rectifier receiving the output of an AC charging circuit for enabling DC voltage to be generated for charging said at least one battery.
  • 74. The hair dryer/blower of claim 54 wherein said power source can be attached to said handle portion in only one position.
  • 75. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base for attachment to said handle portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; and a fluid spray device for enabling a fluid spray to be selectively dispensed at the anterior end of said elongated hollow body, said fluid spray device further comprises: a pliable fluid container; an opening in said container for inserting fluid therein; straps extending from said container for attaching said container to said blower/dryer handle; and an elongated tube having one end connected to at least one container opening and the other end extending along the profile of said elongated hollow body to the anterior end thereof such that when said pliable container is squeezed, fluid is sprayed at the anterior end of said elongated hollow body.
  • 76. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a mass center line and including a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from and along said mass center line of said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base and a mass center line for attachment to said handle portion substantially along its longitudinal axis and in alignment with the mass center line of said elongated hollow body portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; and a fluid spray device comprising: a space in said handle portion for receiving a container having pressurized fluid therein; an elongated tube extending from the handle space to the anterior end of said blower/dryer; a valve for coupling a received container to said elongated tube; and a manually generated means for selectively opening and closing said valve to selectively enable fluid to be sprayed at the anterior end of said elongated body.
  • 77. The hair dryer/blower of claim 76 further including:an adjustable air inlet on the posterior end of said elongated hollow body portion for regulating the amount of air entering said elongated hollow body portion.
  • 78. The hair dryer/blower of claim 77 wherein said adjustable air inlet comprises:a series of parallel vanes adjustable from a minimum separation from each other, to allow a minimum airflow into said elongated hollow body portion, to a maximum separation from each other to allow a maximum airflow into said elongated hollow body portion.
  • 79. The hair dryer/blower of claim 76 further including:an adjustable air outlet on the anterior end of said elongated hollow body portion for regulating the amount of air exiting said elongated hollow body portion.
  • 80. The hair dryer/blower of claim 79 wherein said adjustable air outlet comprises:an iris mechanism mounted on the anterior end of said elongated hollow body portion and having petal portions moveable with respect to each other to form a continually variable size opening from a minimum to a maximum, and an adjusting device coupled to said iris petals for enabling manual adjustment of said iris opening size.
  • 81. The hair dryer/blower of claim 80 wherein said adjustable air outlet comprises:a hollow cylinder having at least a first portion of an inside diameter sized for press-fit mounting on the anterior end of said elongated hollow body portion; a second portion extending beyond said anterior end; and said adjustable iris formed on the interior of said second portion of said hollow cylinder and said iris adjusting device being formed on the exterior of said second portion of said hollow cylinder for manually adjusting said iris opening by moving said adjusting device.
  • 82. The hair dryer/blower of claim 76 further including an electrical circuit coupled to and controlled by said switch controls to selectively power said blower motor and said heating element.
  • 83. The hair dryer/blower of claim 83 wherein said electrical circuit comprises:at least a first switch for electrically connecting said power source to said heater and said blower simultaneously; and at least a second switch for electrically connecting said power source only to said blower fan.
  • 84. The hair dryer/blower of claim 76 further comprising a heating control circuit connected between said heating element and said switch control for enabling control of the amount of heating current applied to said heating element.
  • 85. The hair dryer/blower of claim 84 further including a circuit for supplying maximum heating current to said heating element to cause said heating element to reach the desired temperature in minimum time.
  • 86. The hair dryer/blower of claim 85 wherein said circuit for supplying maximum current comprises:a sensor for sensing the heating element temperature and generating a corresponding voltage; a comparator for comparing a reference voltage to said sensed voltage and providing a first output; and a power transistor having a base coupled to said comparator for continually enabling maximum voltage to be supplied to said heating element to enhance heating of said heating element as long as said first output is provided.
  • 87. The hair dryer/blower of claim 86 further including:a pulser circuit connected to said base of said power transistor for providing a gating pulse to said power transistor at a predetermined on/off rate to maintain said heating element at said desired temperature after said desired temperature is reached.
  • 88. The hair dryer/blower of claim 87 further including a manual control for setting the desired on/off rate at which power is applied to said heating element to maintain a desired temperature.
  • 89. The hair dryer/blower of claim 88 further including:an oscillator circuit for generating pulses; a circuit for receiving said oscillator pulses; multiple serial stages in said circuit, each stage generating an output pulse for a particular count; and a multiple position switch for selectively connecting one circuit stage output pulse to the base of said power transistor to cause said predetermined on/off rate of said power transistor with the ratio of power pulses supplied to said heating element to obtain a desired temperature of said heating element; and means for manually positioning said switch to a desired pulse rate.
  • 90. The hair dryer/blower of claim 87 further including a pulser circuit for automatically applying on/off conducting pulses to said power transistor at a selected ratio to maintain said desired temperature of said heating element.
  • 91. The hair dryer/blower of claim 90 comprising:an integrated circuit controller having a memory; a table stored in said memory indicating heating element temperature versus pulse rate; said heating element heat sensor generated voltage means coupled to said integrated circuit controller; and said integrated circuit controller forming said multiple position switch to automatically pulse said power transistor on and off at said selected ratio to maintain a desired selected temperature.
  • 92. The hair dryer/blower of claim 87 further comprising:a voltage step-up circuit coupled between said power transistor and said heating element; and said pulse circuit output being coupled to said voltage step-up circuit for enabling said voltage step-up to occur only when said gating pulse is applied to said power transistor.
  • 93. The hair dryer/blower of claim 76 wherein said power source contains at least one rechargeable battery.
  • 94. The hair dryer/blower of claim 93 wherein said battery supplies at least 14 volts to said switch controls.
  • 95. The hair dryer/blower of claim 93 including a DC charger connectable to said base for supplying a DC voltage to charge said at least one battery.
  • 96. The hair dryer/blower of claim 93 further including:an AC/DC rectifier circuit forming part of said power source; and said AC/DC rectifier receiving the output of an AC charging circuit for enabling DC voltage to be generated for charging said at least one battery.
  • 97. The hair dryer/blower of claim 76 wherein said power source can be attached to said handle portion in only one position.
  • 98. A portable, cordless, hair dryer/blower comprising:an elongated hollow body portion having a blower motor and a heating element, a posterior end, and an anterior end; a handle portion having a longitudinal axis extending substantially transversely from said elongated body portion, said handle portion including switch controls for operating said heating element and said blower motor; a power source having a flat base for attachment to said handle portion such that (1) power is supplied to said switch controls and (2) said flat base provides a structure for enabling the hair dryer/blower to stand alone; and a fluid spray device for enabling a fluid spray to be selectively dispensed at the anterior end of said elongated hollow body, said fluid spray device further comprises: a space in said handle portion for receiving a container having pressurized fluid therein; an elongated tube extending from the handle space to the anterior end of said blower/dryer; a valve for coupling a received container to said elongated tube; and a manually generated means for selectively opening and closing said valve
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4605019 Reynolds et al. Aug 1986 A
4757183 Karey et al. Jul 1988 A
5434946 Barzilai et al. Jul 1995 A