Counters
Abstract
Abstract A mechanical counter has a linear scale, an indicator which can be set to a desired digit location on the scale, and a stop member which is movable along the scale and biased toward the high end of the scale. when a button is depressed to disengage a first pawl from a ratchet, the stop member moves along the scale until engaged by the indicator. A second pawl connected to a machine drive reciprocates so as to index the ratchet by one position for each operation of the machine. When the ratchet has been indexed back to a zero position, the machine stops. This is accomplished by a microswitch which is closed in response to movement of a disc which moves with the indexing of the ratchet, the disc having a notch which receives a follower of the microswitch when the stop member reaches the zero position.
Inventors
- 👤 John Hayward Cook
Bibliographic Details
Claims Analysis
Total Claims: 7References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |