US3094193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc brakes
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1957-06-25
•
Granted: 1963-06-18
•
Expires: 1977-06-25
Abstract
No abstract record available.
Inventors
- 👤 Dowell Frederick Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:19
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D55/40; F16D2055/0004; F16D2055/0058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A DISC BRAKE COMPRISING A ROTATABLE DISC SLIDABLE AXIALLY ON A ROTATABLE MEMBER TO BE BRAKED, A NON-ROTATABLE FRICTION MEMBER ADJACENT TO ONE RADIAL SIDE OF SAID ROTATABLE DISC, MEANS FOR APPLYING BRAKING PRESSURE TO SAID FRICTION MEMBER, A NON-ROTATABLE RIGID ANNULAR PRESSURE TRANSMITTING ELEMENT AND SAID ROTATABLE DISC AND SIDE OF SAID DISC, AN ANNULAR CARRIER PLATE BETWEEN SAID PRESSURE TRANSMITTING ELEMENT AND SAID ROTATABLE DISC AND HAVING A PLANE SURFACE FACING AND PARALLEL TO THE RADIAL SIDE OF SAID DISC, A FRICTION PAD SECURED TO THE FACE OF SAID CARRIER PLATE OPPOSED TO SAID DISC, AND AN ANNULAR THRUST RECEIVING MEMBER TO BE SECURED AT ITS INNER PERIPHERY TO A FIXED PART OF SAID BRAKE AND AT ITS OUTER PERIPHERY ENGAGING SAID ANNULAR PRESSURE TRANSMITTING ELEMENT ON A CIRCLE COINCIDING SUBSTANTIALLY WITH A CIRCLE OF PRESSURE DEVELOPED BY ENGAGEMENT OF SAID FRICTION MEMBER AND SAID FRICTION PAD WITH SAID ROTATING DISC, THE PORTION OF SAID THRUST RECEIVING MEMBER AT SAID OUTER PERIPHERY BEING SUBSTANTIALLY RIGID AND THE PORTION BETWEEN THE OUTER AND INNER PERIPHERIES OF SAID THRUST RECEIVING MEMBER BEING SUFFICIENTLY FLEXIBLE TO YIELD BETWEEN THESE PERIPHERIES UNDER THE THRUST OF THE BRAKE APPLYING FORCE TO
Claim 2
Dependent Claim
198 words
A DISC BRAKE COMPRISING A ROTATABLE DISC SLIDABLE AXIALLY ON A ROTATABLE MEMBER TO BE BRAKED, A NON-ROTATABLE FRICTION MEMBER ADJACENT TO ONE RADIAL SIDE OF SAID ROTATABLE DISC, MEANS FOR APPLYING BRAKING PRESSURE TO SAID FRICTION MEMBER, A NON-ROTATABLE RIGID ANNULAR PRESSURE TRANSMITTING ELEMENT AND SAID ROTATABLE DISC AND SIDE OF SAID DISC, AN ANNULAR CARRIER PLATE BETWEEN SAID PRESSURE TRANSMITTING ELEMENT AND SAID ROTATABLE DISC AND HAVING A PLANE SURFACE FACING AND PARALLEL TO THE RADIAL SIDE OF SAID DISC, A FRICTION PAD SECURED TO THE FACE OF SAID CARRIER PLATE OPPOSED TO SAID DISC, AND AN ANNULAR THRUST RECEIVING MEMBER TO BE SECURED AT ITS INNER PERIPHERY TO A FIXED PART OF SAID BRAKE AND AT ITS OUTER PERIPHERY ENGAGING SAID ANNULAR PRESSURE TRANSMITTING ELEMENT ON A CIRCLE COINCIDING SUBSTANTIALLY WITH A CIRCLE OF PRESSURE DEVELOPED BY ENGAGEMENT OF SAID FRICTION MEMBER AND SAID FRICTION PAD WITH SAID ROTATING DISC, THE PORTION OF SAID THRUST RECEIVING MEMBER AT SAID OUTER PERIPHERY BEING SUBSTANTIALLY RIGID AND THE PORTION BETWEEN THE OUTER AND INNER PERIPHERIES OF SAID THRUST RECEIVING MEMBER BEING SUFFICIENTLY FLEXIBLE TO YIELD BETWEEN THESE PERIPHERIES UNDER THE THRUST OF THE BRAKE APPLYING FORCE TO
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |