US3220512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spot type disc brakes
Assignee: DUCELLIER BENDIX AIR EQUIPMENT
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Filing: 1962-05-15
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Granted: 1965-11-30
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Expires: 1982-05-15
Abstract
No abstract record available.
Inventors
- 👤 Coatalen Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:52
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A DISC BRAKE COMPRISING: A FIXED SUPPORTING MEMBER; A BRAKING DISC ROTATABLE WITHIN SAID SUPPORTING MEMBER, SAID SUPPORTING MEMBER BEING CUT AWAY TO DEFINE A SPACE EXPOSING AN EDGE PORTION OF THE PERIPHERY OF SAID DISC TOGETHER WITH A CONTIGUOUS PORTION OF SAID DISC INCLUDING SPACED PARALLEL BRAKING AREAS ON OPPOSITE SIDES OF SAID DISC, SAID BRAKING AREAS BEING LOCATED RADIALLY INWARDLY OF SAID EXPOSED PORTION OF SAID PERIPHERY; FRICTION MEANS LATERALLY CONFINED BY SAID SUPPORTING MEMBER WITHIN THE CIRCUMFERENTIAL LIMITS OF SAID SPACE AND PROVIDING BRAKING SURFACES AT BOTH SIDES OF SAID DISC, SAID BRAKING SURRACES ACTING ON SAID DISC AT SAID BRAKING AREAS; ACTUATING MEANS FOR APPLYING BRAKING PRESSURE BETWEEN SAID BRAKING SURFACES AND SAID DISC; AND RELEASABLE RETAINING MEANS OPERABLY CONNECTED TO SAID SUPPORTING MEMBER HOLDING SAID FRICTION MENS AND SAID ACTUATING MEANS IN AN OPERATIVE POSITION RELATIVE TO SAID SUPPORTING MEMBER FOR APPLYING SAID BRAKING PRESSURE, SAID ACTUATING, MEANS BEING MOVABLE PARALLEL TO SAID BRAKING SURFACES FREELY OUTWARDLY PAST SAID EXPOSED PORTION OF SAID PERIPHERY WHEN SAID RETAINING MEANS IS RELEASED.
Claim 2
Dependent Claim
175 words
A DISC BRAKE COMPRISING: A FIXED SUPPORTING MEMBER; A BRAKING DISC ROTATABLE WITHIN SAID SUPPORTING MEMBER, SAID SUPPORTING MEMBER BEING CUT AWAY TO DEFINE A SPACE EXPOSING AN EDGE PORTION OF THE PERIPHERY OF SAID DISC TOGETHER WITH A CONTIGUOUS PORTION OF SAID DISC INCLUDING SPACED PARALLEL BRAKING AREAS ON OPPOSITE SIDES OF SAID DISC, SAID BRAKING AREAS BEING LOCATED RADIALLY INWARDLY OF SAID EXPOSED PORTION OF SAID PERIPHERY; FRICTION MEANS LATERALLY CONFINED BY SAID SUPPORTING MEMBER WITHIN THE CIRCUMFERENTIAL LIMITS OF SAID SPACE AND PROVIDING BRAKING SURFACES AT BOTH SIDES OF SAID DISC, SAID BRAKING SURRACES ACTING ON SAID DISC AT SAID BRAKING AREAS; ACTUATING MEANS FOR APPLYING BRAKING PRESSURE BETWEEN SAID BRAKING SURFACES AND SAID DISC; AND RELEASABLE RETAINING MEANS OPERABLY CONNECTED TO SAID SUPPORTING MEMBER HOLDING SAID FRICTION MENS AND SAID ACTUATING MEANS IN AN OPERATIVE POSITION RELATIVE TO SAID SUPPORTING MEMBER FOR APPLYING SAID BRAKING PRESSURE, SAID ACTUATING, MEANS BEING MOVABLE PARALLEL TO SAID BRAKING SURFACES FREELY OUTWARDLY PAST SAID EXPOSED PORTION OF SAID PERIPHERY WHEN SAID RETAINING MEANS IS RELEASED.
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 |