US3338355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tread brake unit and slack adjuster therefor
Assignee: Westinghouse Air Brake Co
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Filing: 1965-07-06
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Granted: 1967-08-29
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Allen W Kyllonen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:52
CPC Classifications
B; B61; B61H; B61H1/00; B61H1/003; B61H15/00; B61H15/0007; B61H15/0014; B61H15/0028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A BRAKE ASSEMBLY FOR A VEHICLE WHEEL COMPRISING, IN COMBINATION; (A) A CASTING, (B) A BRAKE HEAD HAVING A BRAKE SHOE FOR APPLYING A BRAKING FORCE TO THE VEHICLE WHEEL, (C) A BRAKE LEVER, (D) LINK MEANS PIVOTALLY CONNECTING SAID BRAKE HEAD AND SAID BRAKE LEVER, (E) FULCRUM MEANS ON WHICH SAID BRAKE LEVER IS PIVOTALLY MOUNTED, (F) POWER MEANS CARRIED BY SAID CASING AND OPERATIVELY CONNECTED TO SAID LEVER FOR TRANSMITTING TO THE BRAKE SHOE A BRAKING FORCE ACTIVE ON THE VEHICLE WHEEL, AND (G) AUTOMATICALLY OPERATIVE SLACK ADJUSTER MEANS INCLUDING; (I) A MEMBER ROTATABLY MOUNTED ON SAID CASING AND SUPPORTING SAID FULCRUM MEANS FOR LONGITUDINAL MOVEMENT THEREON RELATIVE TO SAID CASING, (II) MEANS OPERATED IN CONSEQUENCE OF THE ROCKING OF SAID BRAKE LEVER THROUGH AN ANGLE GREATER THAN A CHOSEN ANGLE AS A RESULT OF WEAR OF THE BRAKE SHOE CARRIED BY SAID BRAKE HEAD TO EFFECT ROTATION OF SAID MEMBER, THEREBY TO CAUSE LONGITUDINAL MOVEMENT OF SAID FULCRUM MEANS THEREALONG TO REGULATE THE LOCATION OF SAID FULCRUM MEANS AND BRAKE LEVER CARRIED THEREBY RELATIVE TO SAID CASING.
Claim 2
Dependent Claim
180 words
A BRAKE ASSEMBLY FOR A VEHICLE WHEEL COMPRISING, IN COMBINATION; (A) A CASTING, (B) A BRAKE HEAD HAVING A BRAKE SHOE FOR APPLYING A BRAKING FORCE TO THE VEHICLE WHEEL, (C) A BRAKE LEVER, (D) LINK MEANS PIVOTALLY CONNECTING SAID BRAKE HEAD AND SAID BRAKE LEVER, (E) FULCRUM MEANS ON WHICH SAID BRAKE LEVER IS PIVOTALLY MOUNTED, (F) POWER MEANS CARRIED BY SAID CASING AND OPERATIVELY CONNECTED TO SAID LEVER FOR TRANSMITTING TO THE BRAKE SHOE A BRAKING FORCE ACTIVE ON THE VEHICLE WHEEL, AND (G) AUTOMATICALLY OPERATIVE SLACK ADJUSTER MEANS INCLUDING; (I) A MEMBER ROTATABLY MOUNTED ON SAID CASING AND SUPPORTING SAID FULCRUM MEANS FOR LONGITUDINAL MOVEMENT THEREON RELATIVE TO SAID CASING, (II) MEANS OPERATED IN CONSEQUENCE OF THE ROCKING OF SAID BRAKE LEVER THROUGH AN ANGLE GREATER THAN A CHOSEN ANGLE AS A RESULT OF WEAR OF THE BRAKE SHOE CARRIED BY SAID BRAKE HEAD TO EFFECT ROTATION OF SAID MEMBER, THEREBY TO CAUSE LONGITUDINAL MOVEMENT OF SAID FULCRUM MEANS THEREALONG TO REGULATE THE LOCATION OF SAID FULCRUM MEANS AND BRAKE LEVER CARRIED THEREBY RELATIVE TO SAID CASING.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |