US3454140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double acting slack adjusters
Assignee: Sloan Valve Co
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Filing: 1964-03-27
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Granted: 1969-07-08
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Expires: 1984-03-27
Abstract
No abstract record available.
Inventors
- 👤 Henry R Billeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:27
CPC Classifications
B; B61; B61H; B61H15/00; B61H15/0035; B61H15/0042; B61H15/0057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A SLACK ADJUSTER COMPRISING A CASING, A ROD EXTENDING INTO SAID CASING, A SPIN NUT ROTATABLE ON SAID ROD IN SAID CASING, CLUTCH SURFACES ON SAID CASING AND SAID SPIN NUT, YIELDING MEANS URGING SAID SPIN NUT IN ONE DIRECTION TO ENGAGE SOME OF SAID CLUTCH SURFACES AND MEANS FOR URGING SAID SPIN NUT IN THE OPPOSITE DIRECTION TO ENGAGE OTHERS OF SAID CLUTCH SURFACES, SAID LAST-NAMED MEANS COMPRISING A YOKE PIVOTED TO SAID CASING AND ENGAGING
Claim 2
Dependent Claim
77 words
A SLACK ADJUSTER COMPRISING A CASING, A ROD EXTENDING INTO SAID CASING, A SPIN NUT ROTATABLE ON SAID ROD IN SAID CASING, CLUTCH SURFACES ON SAID CASING AND SAID SPIN NUT, YIELDING MEANS URGING SAID SPIN NUT IN ONE DIRECTION TO ENGAGE SOME OF SAID CLUTCH SURFACES AND MEANS FOR URGING SAID SPIN NUT IN THE OPPOSITE DIRECTION TO ENGAGE OTHERS OF SAID CLUTCH SURFACES, SAID LAST-NAMED MEANS COMPRISING A YOKE PIVOTED TO SAID CASING AND ENGAGING
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) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |