This invention relates to a simple mechanical device that converts the rotary motion of a drill motor to an oscillating or reciprocating motion. This is proposed for various uses including surgical applications. This invention is an oscillating device and process for drilling holes in soft materials. The new mechanism allows one to change from pure rotatory drill to an oscillating device to drill for soft materials. Several prototypes have been built to successfully test different shaft geometry, varying drill bits, and degrees of rotation of the bit. They have been tested and found to solve the problems described. One model rotates about 120 to 130 degrees and uses a three fluted drill. The device drills a close tolerance hole and the use of at least a three flutes help make up for the speed lost while the bit is reversing. The three fluted bits are sometimes difficult to find and relatively a little more costly than a two flute type. Another model rotates about two hundred (200) degrees and uses a standard twist drill bit. Empirically it also works quite well. The other variation of the prototypes was in the geometry of the input shaft and the output shaft. Versions or embodiments have the shafts in line, offset and electronically accomplished. These were done for application convenience. In addition, an alternative embodiment includes a switch to also go to a continuous clockwise direction without oscillation and a reverse (counterclockwise movement) in a continuous direction.
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Various drills over the ages have tried to address the need to drill safely through soft materials. The surgical field has addressed soft tissues for wire insertion but did not anticipate other surgical drilling needs and various non-medical uses for a reciprocating or oscillating drill device.
A. Introduction of the Problems Addressed
Drilling through soft materials such as carpets, foam rubber, upholstery fabrics, insulations etc. is very difficult if not dangerous because drill bits tend to catch on these materials and get wrapped around the bit which can cause unintended damage to the material and/or twist the drill motor out of the operator's hands. Orthopedic surgeons have had the same kind of problems when drilling in bones. If tissue comes in contact with the drill bit, it can get wrapped around the bit and cause considerable tissue and/or muscle damage.
Several prototypes have been built to successfully test different shaft geometry, drill bits, and degrees of rotation of the bit. They have been tested and found to solve the problems described. One model rotates about 120 to 130 degrees and uses a three fluted drill. The device drills a close tolerance hole and the “at least” three or more flutes help make up for the speed lost while the bit is reversing. The “at least” three or more fluted bits are sometimes difficult to find. Another model rotates about two hundred (200) degrees and uses an at least three fluted bit for precision drilling or a standard twist drill bit when accuracy is not a requirement. Another variation of the prototypes is in the geometry of the input shaft and the output shaft. Still another alternative embodiment includes a switch to also go to a continuous clockwise direction without oscillation and a reverse (counterclockwise movement) in a continuous direction. Other versions or embodiments have the shafts in line, offset and electronically accomplished. These were done for application convenience upon logical and empirical considerations.
B. Prior Art
An example of a process and apparatus for drilling holes in soft materials, in non-surgical procedures was shown by U.S. Pat. No. 4,111,208 (
A U.S. Pat. No. 4,955,888 (
A radiolucent orthopedic chuck was shown and taught by the U.S. Pat. No. 5,030,222 (
A Method of fixating bone by driving a wire through oscillation was taught by the U.S. Pat. No. 6,110,174 (
A reciprocating saw was taught by the U.S. Pat. No. 4,145,811 issued to Kendzior (1979). A reciprocating blade saw wherein the counterbalancing of the drive system includes the provision of two directly opposed and coaxial rams, one attached to the saw blade and the other having 1II mass equal to the first ram plus the blade, both being attached to a crankshaft by links which have their masses symmetrically distributed. The crankshaft is driven by a hydraulic motor, and all the masses are so matched that the saw is in balance at all speeds and can be operated at high speeds with minimal vibration. The saw is designed for use particularly in the meat industry. The type of apparatus—a saw—is non-analogous to rotational drivers. It neither anticipates nor obviates the Smith method and device.
An anti-vibration adaptor was taught by the U.S. Pat. No. 6,321,855 issued to Barnes (2000). It teaches a Power drivers are commonly used in production to tighten fasteners such as nuts and bolts. It relates only as to ways to possibly encase a handheld device and is otherwise totally non-analogous to Smiths invention.
As far as known, there are no known devices at the present time on the market that can effectively drill through these materials and also effectively drill through wood, bones, aluminum, copper, steel, etc. It is believed that this device is made with fewer parts, of a more durable design, and with comparatively less expense as compared to other drill and turning devices for soft materials in use today.
This invention relates to a simple mechanical device that converts the rotary motion of a drill motor to an oscillating or reciprocating motion. This is proposed for various uses.
The preferred embodiment of the device is a general reciprocating drive system made of durable material comprising (a) a reciprocating drive means 32 for transferring rotational movement to reciprocating movement comprising a direct rotational drive means 34 for imparting rotational movement to the system 31, a means for connecting 34A the direct rotational drive means 34 to the system 31,a transfer means 35 inter-placed between the direct rotation drive and a reciprocation means 41, a reciprocation means 36 for transforming rotational movement to reciprocating movement; an output means to connect 41 for supplying reciprocating movement; and means for connecting the output to a tool 41A; (b) a durable encasement 40; (c) a means for connecting 39 the components of the drive means 31 to the encasement means 40; and (d) a means 45 for holding the encasement whereby the rotational drive motion is smoothly transferred into a reciprocating motion to use for turning and drilling soft materials by a person P operating the system. An alternative embodiment is the system according to claim 1 wherein the direct rotational drive means 34 is comprising (a) a power source, (b) a means for controlling the power source, (c) a rotating drive motor, and (d) a means for completing an electrical connection the power source and the controlling means to the electrical motor.
The newly invented drilling device and system features various configurations to accomplish the desired output within the scope and spirit of the unique device and new use described herein.
There are several objects and advantages of the drilling device and process. There are currently no known turning or drill devices that are effective at providing the objects of this invention. The following TABLE A summarizes various advantages and objects of the drilling device and system. This list is exemplary and not limiting to the many advantages offered by this new device.
Finally, other advantages and additional features of the new oscillating device and process for drilling holes in soft materials will be more apparent from the accompanying drawings and from the full description of the device. For one skilled in the art of devices and improvements for turning and drilling devices, it is readily understood that the features shown in the examples with this mechanism are readily adapted for improvement to other types of turning and drilling devices and systems.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate a preferred and alternative embodiments for the drilling device and system. The drawings together with the summary description given above and a detailed description given below serve to explain the principles of the drilling device and system. It is understood, however, that the device is not limited to only the precise arrangements and instrumentalities shown.
The following Table B refers to the drawings:
The present invention is an oscillating device and process for drilling holes in soft materials that has been developed for use by a person to provide a method to drill through soft and fibrous materials in various uses. The preferred embodiment of the oscillating device for drilling holes in soft materials is a general reciprocating drive system made of durable material comprising (a) a reciprocating drive means 32 for transferring rotational movement to reciprocating movement comprising a direct rotational drive means 34 for imparting rotational movement to the system 31, a means for connecting 34A the direct rotational drive means 34 to the system 31,a transfer means 35 inter-placed between the direct rotation drive and a reciprocation means 41, a reciprocation means 36 for transforming rotational movement to reciprocating movement; an output means to connect 41 for supplying reciprocating movement; and means for connecting the output to a tool 41A; (b) a durable encasement 40; (c) a means for connecting 39 the components of the drive means 31 to the encasement means 40; and (d) a means 45 for holding the encasement whereby the rotational drive motion is smoothly transferred into a reciprocating motion to use for turning and drilling soft materials by a person P operating the system. An alternative embodiment is the system according to claim 1 wherein the direct rotational drive means 34 is comprising (a) a power source, (b) a means for controlling the power source, (c) a rotating drive motor, and (d) a means for completing an electrical connection the power source and the controlling means to the electrical motor. The structural members of the drilling device and system are potentially made of various materials. The device may have alternative embodiments described within this specification.
The improvement over the existing art is providing a device that is: A smooth operation of turning; has limited or no chatter; is durable; has multi-uses; is simple; may be configured with a straight or offset Design; is essentially mechanically simple; minimizes wobble without ball bearings; has bearings or drill bit retainer block that may be inexpensive and easy to replace by user; uses the same power supply as the existing drill and would be interchangeable with it; does not have to attach a drill motor; is less awkward; easily adjusts to differing torque and speed requirements; can have handles for left and right hand operations and convenience; may accommodate different sized drill bits would require different bearing/retainer blocks unless the drill bits were made with the same sized upper shank; may have a bevel gear or other gears is molded onto the drill bit or modified to have a permanent gear; adapts easily to future design changes or operating charges for easy incorporation; is sterilizable; is radiolucent if necessary; is quiet; adapts to different sizes and styles of bits; removes material instead of inserting a wire; uses a minimum of a three fluted (tri-fluted) bit to make a round hole; can be switched from oscillating to continuous; and provides a means of drilling into hard material covered in softer material without having to remove or significantly alter the soft covering.
There are shown in
Various important features of these components are delineated in
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of an oscillating device and process for drilling holes in soft materials 31, 32 that is preferred. The drawings together with the summary description given above and a detailed description given below serve to explain the principles of the drilling device and system 31, 32. It is understood, however, that the drilling device and system is not limited to only the precise arrangements and instrumentalities shown. This is exemplified with the described alternative embodiments.
One skilled in the art of drill and turning devices appreciates that these oscillating devices and process for drilling holes in soft materials 31, 32, 33 and 33A may be made of various materials. Often, these devices are combinations of materials to keep the designs simple and to lower the costs. Various metals, plastics and composite materials may be used for the main eccentric, disk or gear structures 35, 35A, 36, 37, 37A, and 38. Various thrust bearing or ball bearing devices may provide the connection means 39 (such as a thrust bearing or the like) of members to an encasement 40. The encasement 40 may be of metals (such as aluminum, steel and the like), plastics and composite materials structures. These may be stamped, molded or cast depending on the selected material and final design configuration. The input and output means 34 and 41 can be of various metals, composites and plastics also and be within the scope and spirit of the device and system.
All of the details mentioned here are exemplary and not limiting. Other specific components specific to describing an oscillating device and process for drilling holes in soft materials 31, 32, 33, 33A may be added as a person having ordinary skill in the field of drilling and turning devices well appreciates.
The new oscillating device and process for drilling holes in soft materials 31, 32, 33, and 33A have been described in the above embodiment. The manner of how the device operates is described below. One skilled in the art of drill and turning devices will note that the description above and the operation described here must be taken together to fully illustrate the concept of the special drilling device and system. The preferred embodiment is a general reciprocating drive system 31 made of durable material comprising (a) a reciprocating drive means 32 for transferring rotational movement to reciprocating movement comprising: i. a direct rotational drive means 34 for imparting rotational movement to the system 31; ii. a means for connecting 34A the direct rotational drive means 34 to the system 31; iii. a transfer means 35 inter-placed between the direct rotation drive and a reciprocation means 41; iv. a reciprocation means 36 for transforming rotational movement to reciprocating movement; v. an output means to connect 41 for supplying reciprocating movement; and vi. a means for connecting the output to a tool 41A; (b) a durable encasement 40; (c) a means for connecting 39 the components of the drive means 31 to the encasement means 40; and (d) a means 45 for holding the encasement whereby the rotational drive motion is smoothly transferred into a reciprocating motion to use for turning and drilling soft materials by a person P operating the system. One skilled in the art of drilling and turning devices and systems will appreciate the plethora and varied uses anticipated by this new drilling device and system.
Potential uses for this device with the drilling and turning industry as described herein. However, these describe uses are exemplary and not intended as a limitation of anticipated uses for the drilling device and system. The following TABLE D shows additional examples of potential turning and drilling uses.
Beyond the potential uses, the improved method of operation is shown in
While certain novel features of this invention have been shown and described and are pointed out in the annexed claims, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention. Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
Unless they are defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which these inventions belong. Although any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present inventions, the preferred methods and materials are now described above in the foregoing paragraphs.
Other of the embodiments of the invention are possible. Although the description above contains much specificity, these should not be construed as limiting the scope of the invention, but as merely providing illustrations of some of the presently preferred embodiments of this invention. It is also contemplated that various combinations or sub-combinations of the specific features and aspects of the embodiments may be made and still fall within the scope of the inventions. It should be understood that various features and aspects of the disclosed embodiments can be combined with or substituted for one another in order to form varying modes of the disclosed inventions. Thus, it is intended that the scope of at least some of the present inventions herein disclosed should not be limited by the particular disclosed embodiments described above.
The terms recited in the claims should be given their ordinary and customary meaning as determined by reference to relevant entries (e.g., definition of “plane” as a carpenter's tool would not be relevant to the use of the term “plane” when used to refer to an airplane, etc.) in dictionaries (e.g., widely used general reference dictionaries and/or relevant technical dictionaries), commonly understood meanings by those in the art, etc., with the understanding that the broadest meaning imparted by any one or combination of these sources should be given to the claim terms (e.g., two or more relevant dictionary entries should be combined to provide the broadest meaning of the combination of entries, etc.) subject only to the following exceptions: (a) if a term is used herein in a manner more expansive than its ordinary and customary meaning, the term should be given its ordinary and customary meaning plus the additional expansive meaning, or (b) if a term has been explicitly defined to have a different meaning by reciting the term followed by the phrase “as used herein shall mean” or similar language (e.g., “herein this term means,” “as defined herein,” “for the purposes of this disclosure [the term] shall mean,” etc.). References to specific examples, use of “i.e.,” use of the word “invention,” etc., are not meant to invoke exception (b) or otherwise restrict the scope of the recited claim terms. Other than situations where exception (b) applies, nothing contained herein should be considered a disclaimer or disavowal of claim scope. Accordingly, the subject matter recited in the claims is not coextensive with and should not be interpreted to be coextensive with any particular embodiment, feature, or combination of features shown herein. This is true even if only a single embodiment of the particular feature or combination of features is illustrated and described herein. Thus, the appended claims should be read to be given their broadest interpretation in view of the prior art and the ordinary meaning of the claim terms.
Unless they are otherwise indicated, all numbers or expressions, such as those expressing dimensions, physical characteristics, etc. used in the specification (other than the claims) are understood as modified in all instances by the term “approximately.” At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the claims, each numerical parameter recited in the specification or claims which is modified by the term “approximately” should at least be construed in light of the number of recited significant digits and by applying ordinary rounding techniques.
With the above description and accompanying drawings, it is to be understood that the drilling device and system 31 is not to be limited to only the disclosed embodiment. The features of the drilling device and system 31 are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the description.
This application is a Continuation-in-Part filed under 37 CFR 1.53(b) and claims the benefit of the original non-provisional (Regular Utility) U.S. patent application Ser. No. 12/151,856 submitted May 9, 2008 and Published Feb. 26, 2009 as US 2009/0050343 A1. Both the application and publication are entitled a “Process and apparatus for drilling holes in soft materials” and were submitted by Ronald Smith and Mark Noffsinger. The original application is incorporated fully by reference as if it were reproduced here, verbatim.
Number | Date | Country | |
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Parent | 12151856 | May 2008 | US |
Child | 13427360 | US |