US3158233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load responsive breake release
Assignee: ABB Inc USA
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Filing: 1962-12-24
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Granted: 1964-11-24
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Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 Gustave E Heberlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:40
CPC Classifications
F; F16; F16D; F16D49/00; F16D49/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
A LOAD RESPONSIVE BRAKE COMPRISING A BRAKE DRUM, A BRAKE SHOE, SUPPORT MEANS FOR SAID BRAKE SHOE, A BRAKE ENGAGING MEANS, A BRAKE RELEASE MEANS, A MOTION RESPONSIVE SWITCH MEANS, AND A LOST MOTION CONNECTION MEANS; SAID LOST MOTION CONNECTION MEANS BEING CONNECTED TO SAID BRAKE SHOE BY SAID LOST MOTION CONNECTION MEANS, SAID SUPPORT MEANS BEING MOVABLE WITH RESPECT TO SAID BRAKE DRUM BETWEEN A BRAKE ENGAGING AND A BRAKE DISENGAGING POSITION; SAID BRAKE ENGAGING MEANS COMPRISING A BIASING SPRING CONNECTED TO SAID SUPPORT MEANS FOR NORMALLY BIASING SAID BRAKE SHOE INTO ENGAGEMENT WITH SAID BRAKE DRUM; SAID BRAKE RELEASE MEANS COMPRISING MAGNET COIL MEANS ENERGIZABLE FOR MOVING SAID SUPPORT MEANS TOWARD SAID BRAKE DISENGAGING POSITION AGAINST THE BIASING FORCE OF SAID BIASING SPRING; SAID LOST MOTION CONNECTION MEANS PERMITTING ROTATION OF SAID BRAKE DRUM FOR A PREDETERMINED DISTANCE WHILE SAID BRAKE SHOE ENGAGES SAID BRAKE DRUM; SAID MOTION RESPONSIVE SWITCH MEANS BEING OPERATIVELY CONNECTED TO SAID LOST MOTION CONNECTION MEANS; SAID SWITCH MEANS BEING CLOSED WHEN BOTH SAID BRAKE DRUM AND SAID BRAKE SHOE ROTATE THROUGH SAID PREDETERMINED DISTANCE; AND AN ENERGIZING CIRCUIT FOR ENERGIZING SAID MAGNET COIL; SAID ENERGIZING CIRCUIT BEING CONNECTED IN SERIES WITH SAID SWITCH MEANS.
Claim 2
Dependent Claim
201 words
A LOAD RESPONSIVE BRAKE COMPRISING A BRAKE DRUM, A BRAKE SHOE, SUPPORT MEANS FOR SAID BRAKE SHOE, A BRAKE ENGAGING MEANS, A BRAKE RELEASE MEANS, A MOTION RESPONSIVE SWITCH MEANS, AND A LOST MOTION CONNECTION MEANS; SAID LOST MOTION CONNECTION MEANS BEING CONNECTED TO SAID BRAKE SHOE BY SAID LOST MOTION CONNECTION MEANS, SAID SUPPORT MEANS BEING MOVABLE WITH RESPECT TO SAID BRAKE DRUM BETWEEN A BRAKE ENGAGING AND A BRAKE DISENGAGING POSITION; SAID BRAKE ENGAGING MEANS COMPRISING A BIASING SPRING CONNECTED TO SAID SUPPORT MEANS FOR NORMALLY BIASING SAID BRAKE SHOE INTO ENGAGEMENT WITH SAID BRAKE DRUM; SAID BRAKE RELEASE MEANS COMPRISING MAGNET COIL MEANS ENERGIZABLE FOR MOVING SAID SUPPORT MEANS TOWARD SAID BRAKE DISENGAGING POSITION AGAINST THE BIASING FORCE OF SAID BIASING SPRING; SAID LOST MOTION CONNECTION MEANS PERMITTING ROTATION OF SAID BRAKE DRUM FOR A PREDETERMINED DISTANCE WHILE SAID BRAKE SHOE ENGAGES SAID BRAKE DRUM; SAID MOTION RESPONSIVE SWITCH MEANS BEING OPERATIVELY CONNECTED TO SAID LOST MOTION CONNECTION MEANS; SAID SWITCH MEANS BEING CLOSED WHEN BOTH SAID BRAKE DRUM AND SAID BRAKE SHOE ROTATE THROUGH SAID PREDETERMINED DISTANCE; AND AN ENERGIZING CIRCUIT FOR ENERGIZING SAID MAGNET COIL; SAID ENERGIZING CIRCUIT BEING CONNECTED IN SERIES WITH SAID SWITCH MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |