Patent US3297115A successfully refreshed from Google Patents.
US3297115A
Expired / Lapsed
US
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Adjustment device for spring pressure brakes
Assignee: ABB Norden Holding AB
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Filing: 1964-10-02
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Granted: 1967-01-10
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Expires: 1984-10-02
Abstract
No abstract record available.
Inventors
- 👤 Waloen Age
- 👤 Tuneblom Eskil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:05
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/42; F16D65/46; F16D2065/383; F16D2121/00; F16D2121/02; F16D2121/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A BRAKE COMPRISING A MOVABLE BRAKE BLOCK, A STATIONARY BRAKE CYLINDER MEMBER, A PISTON MEMBER SLIDABLE IN SAID CYLINDER MEMBER CONNECTED TO SAID MOVABLE BLOCK, SAID CYLINDER AND PISTON MEMBERS HAVING COOPERATING SPRING ABUTMENT MEANS THEREON, A BRAKE POWER DEVELOPING SPRING BETWEEN SAID SPRING ABUTMENTS URGING SAID BRAKE BLOCK IN BRAKE APPLYING DIRECTION, SAID CYLINDER MEMBER FORMING A PRESSURE CHAMBER, ONE SIDE OF SAID PISTON MEMBER FACING SAID PRESSURE CHAMBER, PRESSURE MEDIUM SUPPLY MEANS CONNECTED TO SAID PRESSURE CHAMBER FOR MOVING SAID PISTON MEMBER AGAINST THE FORCE OF SAID SPRING, ONE OF SAID SPRING ABUTMENT MEANS BEING ADJUSTABLE WITH RESPECT TO ITS MEMBER IN THE DIRECTION OF SAID MOVEMENT OF SAID PISTON, SAID ADJUSTABLE ABUTMENT MEANS HAVING STOP MEANS ENGAGEABLE BY THE OTHER MEMBER TO LIMIT THE MOVEMENT OF SAID PISTON MEMBER IN BRAKE RELEASING DIRECTION, SAID SPRING BEING LOCATED IN SAID CYLINDER MEMBER ON THE SIDE OF SAID PISTON MEMBER OPPOSITE THE ONE FACING SAID PRESSURE CHAMBER, SAID ADJUSTABLE ABUTMENT MEANS CONSTITUTING AN END WALL OF SAID BRAKE CYLINDER MEMBER REMOTE FROM SAID PRESSURE CHAMBER MOUNTED FOR ADJUSTMENT WITH RESPECT TO THE BRAKE CYLINDER MEMBER.
Claim 2
Dependent Claim
186 words
A BRAKE COMPRISING A MOVABLE BRAKE BLOCK, A STATIONARY BRAKE CYLINDER MEMBER, A PISTON MEMBER SLIDABLE IN SAID CYLINDER MEMBER CONNECTED TO SAID MOVABLE BLOCK, SAID CYLINDER AND PISTON MEMBERS HAVING COOPERATING SPRING ABUTMENT MEANS THEREON, A BRAKE POWER DEVELOPING SPRING BETWEEN SAID SPRING ABUTMENTS URGING SAID BRAKE BLOCK IN BRAKE APPLYING DIRECTION, SAID CYLINDER MEMBER FORMING A PRESSURE CHAMBER, ONE SIDE OF SAID PISTON MEMBER FACING SAID PRESSURE CHAMBER, PRESSURE MEDIUM SUPPLY MEANS CONNECTED TO SAID PRESSURE CHAMBER FOR MOVING SAID PISTON MEMBER AGAINST THE FORCE OF SAID SPRING, ONE OF SAID SPRING ABUTMENT MEANS BEING ADJUSTABLE WITH RESPECT TO ITS MEMBER IN THE DIRECTION OF SAID MOVEMENT OF SAID PISTON, SAID ADJUSTABLE ABUTMENT MEANS HAVING STOP MEANS ENGAGEABLE BY THE OTHER MEMBER TO LIMIT THE MOVEMENT OF SAID PISTON MEMBER IN BRAKE RELEASING DIRECTION, SAID SPRING BEING LOCATED IN SAID CYLINDER MEMBER ON THE SIDE OF SAID PISTON MEMBER OPPOSITE THE ONE FACING SAID PRESSURE CHAMBER, SAID ADJUSTABLE ABUTMENT MEANS CONSTITUTING AN END WALL OF SAID BRAKE CYLINDER MEMBER REMOTE FROM SAID PRESSURE CHAMBER MOUNTED FOR ADJUSTMENT WITH RESPECT TO THE BRAKE CYLINDER MEMBER.
References Cited (Backward Citations)
US2754805A
Cited
GB889023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |