US3756711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter for working cycles
Assignee: Individual
•
Filing: 1972-02-01
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Granted: 1973-09-04
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Expires: 1992-02-01
Abstract
Abstract A counting device for working cycles and more particularly for copying apparatus for counting an adjustable number of copies as a function of an element which rotates in accordance with the working cycle, comprising a drive wheel adjustable in accordance with the number of working cycles, whereby a signal is produced when a certain number of working cycles has been executed.
Inventors
- 👤 W Limberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:02
CPC Classifications
G; G06; G06M; G06M3/00; G06M3/02; G03; G03G; G03G21/00; G03G21/02; G06M3/025; G06M3/027
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
285 words
A device for counting working cycles comprising a mounting means, a drive wheel rotatably mounted on said mounting means, an actuating element rotatable in accordance with said working cycle, said drive wheel having a plurality of step parts, said actuating element being disposed to engage said step parts of said drive wheel to rotate the latter in incremental steps corresponding to the number of working cycles, adjustment means connected to said drive wheel for rotating the latter to the desired number of working cycles, said drive wheel having a zero position defined by an idle motion section, said drive wheel being movable to a position in which said idle motion section is disposed to permit rotation of said actuating element without rotating said drive wheel, a cam wheel mounted for rotation with said drive wheel, said cam wheel having a plurality of step sections and a cam section, a lever pivotally mounted on said mounting means, an engaging element on said lever, means biasing said lever to cause said engaging Element to biasingly engage said step sections and said cam sections, an alarm on said mounting means, said cam section being arranged in relative correspondence to said idle motion section of said drive wheel such that when said drive wheel reaches said zero positon, said engaging element of said lever engages said cam section to cause said biasing means to pivot said lever to a position to strike said alarm, said step sections on said cam wheel being arranged to correspond to said step parts on said drive wheel such that said engaging element on said lever successively engages said step elements to provide a resilient interlock for each incremental step of said drive wheel.
Claim 2
Independent Claim
285 words
A device for counting working cycles comprising a mounting means, a drive wheel rotatably mounted on said mounting means, an actuating element rotatable in accordance with said working cycle, said drive wheel having a plurality of step parts, said actuating element being disposed to engage said step parts of said drive wheel to rotate the latter in incremental steps corresponding to the number of working cycles, adjustment means connected to said drive wheel for rotating the latter to the desired number of working cycles, said drive wheel having a zero position defined by an idle motion section, said drive wheel being movable to a position in which said idle motion section is disposed to permit rotation of said actuating element without rotating said drive wheel, a cam wheel mounted for rotation with said drive wheel, said cam wheel having a plurality of step sections and a cam section, a lever pivotally mounted on said mounting means, an engaging element on said lever, means biasing said lever to cause said engaging Element to biasingly engage said step sections and said cam sections, an alarm on said mounting means, said cam section being arranged in relative correspondence to said idle motion section of said drive wheel such that when said drive wheel reaches said zero positon, said engaging element of said lever engages said cam section to cause said biasing means to pivot said lever to a position to strike said alarm, said step sections on said cam wheel being arranged to correspond to said step parts on said drive wheel such that said engaging element on said lever successively engages said step elements to provide a resilient interlock for each incremental step of said drive wheel.
Claim 3
Dependent Claim
49 words
A device according to claim 1 wherein said drive wheel is mounted on a shaft, said alarm comprising a bell mounted on said shaft, said lever having an elastic hammer mounted thereon, said elastic hammer being disposed to strike said bell when said engaging element engages said cam section.
Claim 4
Dependent Claim
39 words
A device according to claim 1 wherein said actuating element is a crank element, said step parts on said drive wheel comprising a plurality of teeth, said idle motion section being formed by an extended recess between said teeth.
Claim 5
Dependent Claim
81 words
A device according to claim 1 wherein said step elements on said cam wheel comprise teeth, said engaging element on said lever comprising a roller which biasingly engages said teeth to provide said resilient interlock, said teeth and said roller being constructed and arranged such that said lever is precluded from striking said alarm bell when said roller engages said teeth, said cam section on said cam wheel being in the form of an indentation of greater depth than said teeth.
Claim 6
Dependent Claim
42 words
A device according to claim 1 wherein said drive wheel and cam wheel have different diameters and a common axis of rotation, said idle motion section on said drive wheel being angularly offset relative to said cam section on said cam wheel.
Claim 7
Dependent Claim
50 words
A device according to claim 1 wherein said drive wheel and cam wheel are mounted on a common shaft, means mounting said shaft for free rotational movement in said mounting means, said adjustment means comprising a pointer means mounted on said shaft for indicating the desired number of working cycles.
Claim 8
Dependent Claim
15 words
A device according to claim 2 including means rigidly mounting said bell on said shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |