US3125889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring clutch and control means
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:50
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/20; F16D41/206; F16D13/00; F16D13/08; F16D43/00; F16D43/02; F16D43/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1524; Y10T74/19; Y10T74/19535
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
A POWER TRANSMITTING DEVICE COMPRISING AN INPUT AND AN OUTPUT SHAFT; A SPRING CONCENTRIC WITH THE INPUT AND OUTPUT SHAFTS HAVING END PORTIONS WHICH HAVE AN INTERFERENCE FIT WITH THE SHAFTS, THE SPRING BEING SO WOUND THAT UPON ROTATION OF THE INPUT SHAFT IN A PREDETERMINED DIRECTION RELATIVE TO THE OUTPUT SHAFT, THE ONE SPRING END IN INTERFERENCE WITH THE INPUT SHAFT, THE ONE SPRING END IN INTERFERENCE WITH THE INPUT SHAFT IS MOVED BY THE INPUT SHAFT IN SAID PREDETERMINED DIRECTION RELATIVE TO THE OPPOSITE END THEREOF TO TIGHTEN THE COILS OF THE SPRING AGAINST THE INPUT AND OUTPUT SHAFTS WHEREUPON DRIVING TORQUE IS IMPARTED BY THE INPUT SHAFT THROUGH THE SPRING TO THE OUTPUT SHAFT; AN ACTUATOR; AND MEANS FOR ROTATING THE ACTUATOR IN THE DIRECTION OF ROTATION OF THE INPUT SHAFT AT LESS SPEED THAN THE INPUT SHAFT; SAID ACTUATOR INCLUDING A PORTION WHICH EXTENDS INTO THE PATH OF SAID ONE SPRING END FOR ENGAGEMENT THEREBY AND WHICH WHEN ENGAGED RELAXES THE SPRING TO INTERRUPT THE TRANSMISSION OF DRIVING TORQUE TO THE OUTPUT SHAFT SUCH THAT OUTPUT SHAFT SPEED MAY DROP BELOW THE SPEED OF THE ACTUATOR AND THE ACTUATOR MOVE OUT OF ENGAGEMENT WITH SAID ONE SPRING END TO PERMIT THE COILS OF THE SPRING TO TIGHTEN AGAINST THE SHAFTS AND AGAIN TRANSMIT TORQUE FROM THE INPUT SHAFT TO THE OUTPUT SHAFT.
Claim 2
Dependent Claim
226 words
A POWER TRANSMITTING DEVICE COMPRISING AN INPUT AND AN OUTPUT SHAFT; A SPRING CONCENTRIC WITH THE INPUT AND OUTPUT SHAFTS HAVING END PORTIONS WHICH HAVE AN INTERFERENCE FIT WITH THE SHAFTS, THE SPRING BEING SO WOUND THAT UPON ROTATION OF THE INPUT SHAFT IN A PREDETERMINED DIRECTION RELATIVE TO THE OUTPUT SHAFT, THE ONE SPRING END IN INTERFERENCE WITH THE INPUT SHAFT, THE ONE SPRING END IN INTERFERENCE WITH THE INPUT SHAFT IS MOVED BY THE INPUT SHAFT IN SAID PREDETERMINED DIRECTION RELATIVE TO THE OPPOSITE END THEREOF TO TIGHTEN THE COILS OF THE SPRING AGAINST THE INPUT AND OUTPUT SHAFTS WHEREUPON DRIVING TORQUE IS IMPARTED BY THE INPUT SHAFT THROUGH THE SPRING TO THE OUTPUT SHAFT; AN ACTUATOR; AND MEANS FOR ROTATING THE ACTUATOR IN THE DIRECTION OF ROTATION OF THE INPUT SHAFT AT LESS SPEED THAN THE INPUT SHAFT; SAID ACTUATOR INCLUDING A PORTION WHICH EXTENDS INTO THE PATH OF SAID ONE SPRING END FOR ENGAGEMENT THEREBY AND WHICH WHEN ENGAGED RELAXES THE SPRING TO INTERRUPT THE TRANSMISSION OF DRIVING TORQUE TO THE OUTPUT SHAFT SUCH THAT OUTPUT SHAFT SPEED MAY DROP BELOW THE SPEED OF THE ACTUATOR AND THE ACTUATOR MOVE OUT OF ENGAGEMENT WITH SAID ONE SPRING END TO PERMIT THE COILS OF THE SPRING TO TIGHTEN AGAINST THE SHAFTS AND AGAIN TRANSMIT TORQUE FROM THE INPUT SHAFT TO THE OUTPUT 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) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |