US3258980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary actuator
Assignee: Ledex Inc
•
Filing: 1963-04-16
•
Granted: 1966-07-05
•
Expires: 1983-04-16
Abstract
No abstract record available.
Inventors
- 👤 Milo C Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:17
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/08; F16H25/12; F16H25/125; F16H25/18; F16H25/186; F16H2025/127; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1856; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN AN APPARATUS FOR PRODUCING ROTARY MOVEMENT OF A DRIVEN ELEMENT, SAID APPARATUS COMPRISING A HOUSING RECEIVING SAID DRIVEN ELEMENT AND IN WHICH SAID DRIVEN ELEMENT HAS FREEDOM FOR LIMITED AXIAL AND ROTARY MOVEMENT ON A PREDETERMINED AXIS, SAID HOUSING HAVING A BRAKE SURFACE OCCUPYING A PLANE NORMAL TO SAID PREDETERMINED AXIS, MOTIVE MEANS TO DELIVER A REARWARD AXIAL THRUST TO SAID DRIVEN ELEMENT ALONG SAID PREDETERMINED AXIS, AND MOTION CONVERSION MEANS CONNECTED WITH SAID DRIVEN ELEMENT RESPONSIVE TO SAID REARWARD THRUST AND ENGAGEABLE WITH SAID BRAKE SURFACE TO CAUSE ROTATION OF SAID DRIVEN ELEMENT RELATIVE TO SAID HOUSING, THE IMPROVEMENT COMPRISING RESILIENT MEANS COACTING BETWEEN SAID DRIVEN ELEMENT AND SAID HOUSING TO OPPOSE SAID REARWARD AXIAL THRUST AND OPERABLE UPON RELAXATION OF SAID REARWARD THURST TO DRIVE SAID DRIVEN ELEMENT FORWARDLY TO RELEASE THE FRICTIONAL ENGAGEMENT BETWEEN SAID MOTION CONVERSION MEANS AND SAID BRAKE SURFACE.
Claim 2
Dependent Claim
146 words
IN AN APPARATUS FOR PRODUCING ROTARY MOVEMENT OF A DRIVEN ELEMENT, SAID APPARATUS COMPRISING A HOUSING RECEIVING SAID DRIVEN ELEMENT AND IN WHICH SAID DRIVEN ELEMENT HAS FREEDOM FOR LIMITED AXIAL AND ROTARY MOVEMENT ON A PREDETERMINED AXIS, SAID HOUSING HAVING A BRAKE SURFACE OCCUPYING A PLANE NORMAL TO SAID PREDETERMINED AXIS, MOTIVE MEANS TO DELIVER A REARWARD AXIAL THRUST TO SAID DRIVEN ELEMENT ALONG SAID PREDETERMINED AXIS, AND MOTION CONVERSION MEANS CONNECTED WITH SAID DRIVEN ELEMENT RESPONSIVE TO SAID REARWARD THRUST AND ENGAGEABLE WITH SAID BRAKE SURFACE TO CAUSE ROTATION OF SAID DRIVEN ELEMENT RELATIVE TO SAID HOUSING, THE IMPROVEMENT COMPRISING RESILIENT MEANS COACTING BETWEEN SAID DRIVEN ELEMENT AND SAID HOUSING TO OPPOSE SAID REARWARD AXIAL THRUST AND OPERABLE UPON RELAXATION OF SAID REARWARD THURST TO DRIVE SAID DRIVEN ELEMENT FORWARDLY TO RELEASE THE FRICTIONAL ENGAGEMENT BETWEEN SAID MOTION CONVERSION MEANS AND SAID BRAKE SURFACE.
References Cited (Backward Citations)
FR569050A
Cited
US2342540A
Cited
CH233419A
Cited
GB673369A
Cited
US2887889A
Cited
US2959969A
Cited
US3092740A
Cited
US3045498A
Cited
US3057223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |