2. BACKGROUND OF THE INVENTION
A. Field of the Invention
The embodiments of the present invention relate to a fireman switch assembly, and more particularly, the embodiments of the present invention relate to a fireman switch assembly for activating by a mechanical timer having captive trippers.
3. SUMMARY OF THE INVENTION
Thus, an object of the embodiments of the present invention is to provide a fireman switch assembly for activating by a mechanical timer having captive trippers, which avoids the disadvantages of the prior art.
Briefly stated, another object of the embodiments of the present invention is to provide a fireman switch assembly for activating by a mechanical timer having captive trippers. The assembly includes a mounting plate, a micro-switch, and a lever arm. The mounting plate attaches to the mechanical timer. The micro-switch is attached to the mounting plate. The lever arm is operatively connected to the micro-switch and cooperates with the captive trippers of the mechanical timer to selectively turn the micro-switch ON and OFF.
The novel features considered characteristic of the embodiments of the present invention are set forth in the appended claims. The embodiments of the present invention themselves, however, both as to their construction and their method of operation together with additional objects and advantages thereof will be best understood from the following description of the specific embodiments when read and understood in connection with the accompanying drawing.
4. BRIEF DESCRIPTION OF THE DRAWING
The figures of the drawing are briefly described as follows:
FIG. 1 is a diagrammatic top plan view of the fireman switch assembly of the embodiments of the present invention activating by a mechanical timer having captive trippers;
FIG. 2 is a diagrammatic side elevational view taken in the direction of ARROW 2 in FIG. 1;
FIG. 3 is an enlarged diagrammatic cross sectional view taken along LINE 3-3 in FIG. 1;
FIG. 4 is a diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 4 in FIG. 1;
FIG. 5 is an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 5 in FIG. 4 when the fireman switch assembly and the mechanical timer are both ON;
FIG. 6 is an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 6 in FIG. 4 when the fireman switch assembly is OFF and the mechanical timer is ON;
FIG. 7 is an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 7 in FIG. 4 when the fireman switch assembly and the mechanical timer are both OFF;
FIG. 8 is an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 8 in FIG. 4 when the fireman switch assembly is ON and the mechanical timer is OFF; and
FIG. 9 is a diagrammatic timing diagram of both the fireman switch assembly and the mechanical timer.
5. LIST OF REFERENCE NUMERALS UTILIZED IN THE DRAWING
A. General
10 fireman switch assembly of embodiments of present invention for activating by mechanical timer 12 having captive trippers 14, base 15, and dial 17
12 mechanical timer
14 captive trippers of mechanical timer 12
15 base of mechanical timer 12
B. Overall Configuration of Fireman Switch Assembly 10
- 16 micro-switch
17 dial of mechanical timer 12
18 lever arm for cooperating with captive trippers 14 of mechanical timer 12 to selectively turn micro-switch 16 ON and OFF
19 mounting plate for attaching to mechanical timer 12
C. Specific Configuration of Mounting Plate 19
20 upright portion
21 activation arm of mechanical timer 12
22 transverse portion
24 right-angled notch in transverse portion 22 of mounting plate 19 for insuring proper and consistent orientation of fireman switch assembly 10 when attached to top right mounting hole 26 of mechanical timer 12
26 top right mounting hole of mechanical timer 12
D. Specific Configuration of Micro-Switch 16
28 one terminal
30 other terminal
32 lever arm
6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
A. General
Referring now to the figures, in which like numerals indicate like parts, and particularly to FIGS. 1-3, which are, respectively, a diagrammatic top plan view of the fireman switch assembly of the embodiments of the present invention activating by a mechanical timer having captive trippers, a diagrammatic side elevational view taken in the direction of ARROW 2 in FIG. 1, and an enlarged diagrammatic cross sectional view taken along LINE 3-3 in FIG. 1, a fireman switch assembly of the embodiments of the present invention is shown generally at 10 for activating by a mechanical timer 12 having captive trippers 14, a base 15, a dial 17, and an activation button 21.
B. The Overall Configuration of the Fireman Switch Assembly 10
The fireman switch assembly 10 comprises a mounting plate 19, a micro-switch 16, and a lever arm 18. The mounting plate 19 is for attaching to the mechanical timer 12. The micro-switch 16 is attached to the mounting plate 19. The lever arm 18 is operatively connected to the micro-switch 16 and is for cooperating with the captive trippers 14 of the mechanical timer 12 to selectively turn the micro-switch 16 ON and OFF.
C. The Specific Configuration of the Mounting Plate 19
The mounting plate 19 is generally L-shaped, and as such, has an upright portion 20 and a transverse portion 22.
The transverse portion 22 of the mounting plate 19 has a right-angled notch 24 therein. The right-angled notch 24 in the transverse portion 22 of the mounting plate 19 is for insuring proper and consistent orientation of the fireman switch assembly 10 when attached to a top right mounting hole 26 of the mechanical timer 12.
D. The Specific Configuration of the Micro-Switch 16
The micro-switch 16 can be, for example, a Jialin Microswitch Part No.: KW4-32-3A, is attached to the upright portion 20 of the mounting plate 19, and has two terminals 28 and 30, with the terminal 30 of the micro-switch 16 being common, and a lever arm 32.
E. The Specific Configuration of the Lever Arm 18
The lever arm 18 is attached to the lever arm 32 of the micro-switch 16, and fits loosely between the base 15 of the mechanical timer 12 and the dial 17 of the mechanical timer 12, while selectively engaging the captive trippers 14 of the mechanical timer 12 as the dial 17 of the mechanical timer 12 rotates thereby selectively activating and deactivating the micro-switch 16 via a link established between the lever arm 18 and the lever arm 32 of the micro-switch 16.
F. The Method of Operation of the Fireman Switch Assembly 10
The method of operation of the fireman switch assembly 10 can best be see in FIGS. 4-9, which are, respectively, a diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 4 in FIG. 1, an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 5 in FIG. 4 when the fireman switch assembly and the mechanical timer are both ON, an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 6 in FIG. 4 when the fireman switch assembly is OFF and the mechanical timer is ON, an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 7 in FIG. 4 when the fireman switch assembly and the mechanical timer are both OFF, an enlarged diagrammatic top plan view of the area generally enclosed by the dotted curve identified by ARROW 8 in FIG. 4 when the fireman switch assembly is ON and the mechanical timer is OFF, and a diagrammatic timing diagram of both the fireman switch assembly and the mechanical timer, and as such, will be discussed with reference thereto.
As shown in FIG. 4, the lever arm 18 is for fitting loosely between the base 15 of the mechanical timer 12 and the dial 17 of the mechanical timer 12 so as to allow the lever arm 18 to operate the micro-switch 16.
As shown in FIGS. 5 and 9, when the captive trippers 14 of the mechanical timer 12 are placed in the ON position, i.e., outwardly, they push the lever arm 18 thereby activating the micro-switch 16, with the mechanical timer 12 being ON via contact of the captive trippers 14 of the mechanical timer 12 with the activation button 12 of the mechanical timer 12. As the dial 17 of the mechanical timer 12 rotates, the captive trippers 14 of the mechanical timer 12, when in the ON/outward position, push the lever arm 18 and close the micro-switch 16, with the mechanical timer 12 being ON via contact of the captive trippers 14 of the mechanical timer 12 with the activation button 12 of the mechanical timer 12.
As shown in FIGS. 6 and 9, when the captive trippers 14 of the mechanical timer 12 are placed in the OFF position, i.e., inwardly, they allow the lever arm 18 to open thereby deactivating the micro-switch 16, with the mechanical timer 12 being ON via contact of the captive trippers 14 of the mechanical timer 12 with the activation button 21 of the mechanical timer 12. As the dial 17 of the mechanical timer 12 rotates, if the captive trippers 14 of the mechanical timer 12 are set in the OFF/inward position, the lever arm 18 is released and shuts OFF the micro-switch 16 prior to the mechanical timer 12 shutting OFF, with the mechanical timer 12 being ON via contact of the captive trippers 14 of the mechanical timer 12 with the activation button 21 of the mechanical timer 12.
Due to the fact that the lever arm 18 is located just ahead of the activation button 21 of the mechanical timer 12, the micro-switch 16 opens the fireman switch assembly 10 approximately 15-20 minutes before the mechanical timer 12 shuts OFF.
As shown in FIGS. 7 and 9, when the captive trippers 14 of the mechanical timer 12 are placed in the OFF position, i.e., inwardly, they allow the lever arm 18 to open thereby deactivating the micro-switch 16, with the mechanical timer 12 being OFF via a lack of contact of the captive trippers 14 of the mechanical timer 12 with the activation button 21 of the mechanical timer 12. As the dial 17 of the mechanical timer 12 rotates, if the captive trippers 14 of the mechanical timer 12 are set in the OFF/inward position, the lever arm 18 is released and shuts OFF the micro-switch 16, with the mechanical timer 12 being OFF via a lack of contact of the captive trippers 14 of the mechanical timer 12 with the activation button 21 of the mechanical timer 12.
As shown in FIGS. 8 and 9, when the captive trippers 14 of the mechanical timer 12 are placed in the ON position, i.e., outwardly, they push the lever arm 18 thereby activating the micro-switch 16, with the mechanical timer 12 being OFF via a lack of contact of the captive trippers 14 of the mechanical timer 12 with the activation button 21 of the mechanical timer 12. As the dial 17 of the mechanical timer 12 rotates, the captive trippers 14 of the mechanical timer 12, when in the ON/outward position, push the lever arm 18 and close the micro-switch 16, with the mechanical timer 12 being OFF via a lack of contact of the captive trippers 14 of the mechanical timer 12 with the activation button 21 of the mechanical timer 12.
FIG. 9 has additional labeling to indicate the device being utilized installed in a typical swimming pool timing system. A very common uses for such a device is to shut off a heater power in a pool system some what ahead of the of a pump power so accordingly this diagram includes appropriate nomenclature for such a use.
G. THE CONCLUSIONS
It will be understood that each of the elements described above or two or more together may also find a useful application in other types of constructions differing from the types described above.
While the embodiments of the present invention have been illustrated and described as embodied in a fireman switch assembly for activating by a mechanical timer having captive trippers, however, they are not limited to the details shown, since it will be understood that various omissions, modifications, substitutions, and changes in the forms and details of the embodiments of the present invention illustrated and their operation can be made by those skilled in the art without departing in any way from the spirit of the embodiments of the present invention.
Without further analysis the foregoing will so fully reveal the gist of the embodiments of the present invention that others can by applying current knowledge readily adapt them for various applications without omitting features that from the standpoint of prior art fairly constitute characteristics of the generic or specific aspects of the embodiments of the present invention.
Patent Grant
7851715
