US3273674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque boosted brake
Assignee: —
•
Filing: —
•
Granted: 1966-09-20
•
Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
F; F16; F16D; F16D63/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
IN A TRANSMISSION OF THE TYPE HAVING FRICTION GRIPPING SURFACES ADAPTED TO BE ENGAGED AND RELEASED, A CYLINDER, A PISTON AXIALLY MOVABLE IN RESPONSE TO FLUID PRESSURE FOR INITIATING ENGAGEMENT OF SAID FRICTION GRIPPING SURFACES, SAID PISTON BEING ROTATABLE WITH RESPECT TO SAID CYLINDER IN RESPONSE TO CONTACT OF SAID FRICTION GRIPPING SURFACES, A RECESS IN SAID PISTON, MEANS FOR LIMITING THE ANGULAR ROTATION OF SAID PISTON AND FOR APPLYING ADDITIONAL THRUST ACTING IN ASSISTANCE TO SAID FLUID PRESSURE COMPRISING A PIN FIXED TO SAID CYLINDER AND A PLURALITY OF BALLS POSITIONED IN SAID RECESS BETWEEN SAID PIN AND A WALL OF SAID CYLINDER.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |