US3220514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooled external band brake
Assignee: Motors Liquidation Co
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Filing: 1963-11-20
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Granted: 1965-11-30
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Expires: 1983-11-20
Abstract
No abstract record available.
Inventors
- 👤 Anton F Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:18
CPC Classifications
F; F16; F16D; F16D49/00; F16D49/08; F16D65/00; F16D65/78; F16D65/80; F16D65/807
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A BRAKING DEVICE COMPRISING; A ROTATABLE BRAKE DRUM, A PLURALITY OF BRAKE SHOES CIRCUMFERENTIALLY MOUNTED AROUND THE PERIPHERY OF SAID BRAKE DRUM AND BEING ADAPTED TO ENGAGE THE OUTER PERIPHERY OF SAID BRAKE DRUM DURING ROTATION THEREOF TO EFFECT A BRAKING ACTION FROM THE FRICTION GENERATED THEREBETWEEN, FORCE OPERABLE MEANS ARRANGED TO MOVE SAID BRAKE SHOES, AND PARALLELOGRAM FORCE MULTIPLYING LINKAGE MEANS CONNECTED BETWEEN SAID BRAKE SHOES AND SAID FORCE OPERABLE MEANS TO MULTIPLY A FORCE EXERTED BY SAID FORCE OPERABLE ON SAID BRAKE SHOES DURING BRAKE ACTUATION.
Claim 2
Dependent Claim
88 words
A BRAKING DEVICE COMPRISING; A ROTATABLE BRAKE DRUM, A PLURALITY OF BRAKE SHOES CIRCUMFERENTIALLY MOUNTED AROUND THE PERIPHERY OF SAID BRAKE DRUM AND BEING ADAPTED TO ENGAGE THE OUTER PERIPHERY OF SAID BRAKE DRUM DURING ROTATION THEREOF TO EFFECT A BRAKING ACTION FROM THE FRICTION GENERATED THEREBETWEEN, FORCE OPERABLE MEANS ARRANGED TO MOVE SAID BRAKE SHOES, AND PARALLELOGRAM FORCE MULTIPLYING LINKAGE MEANS CONNECTED BETWEEN SAID BRAKE SHOES AND SAID FORCE OPERABLE MEANS TO MULTIPLY A FORCE EXERTED BY SAID FORCE OPERABLE ON SAID BRAKE SHOES DURING BRAKE ACTUATION.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |