Patent US3249183A successfully refreshed from Google Patents.
US3249183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double acting slack adjusters
Assignee: Sloan Valve Co
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Filing: 1964-04-15
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Granted: 1966-05-03
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Henry R Billeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:05
CPC Classifications
B; B61; B61H; B61H15/00; B61H15/0035; B61H15/0042; B61H15/0057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
AN AUTOMATIC SLACK ADJUSTER INCLUDING A HOUSING, A ROD RECIPROCAL IN SAID HOUSING, A NUMBER OF SPIN-NUTS THREADABLY MOUNTED ON SAID ROD WITHIN SAID HOUSING, AT LEAST ONE OF SAID SPIN-NUTS BEING SPOOL-SHAPED, A NUMBER OF CLUTCH SURFACES LONGITUDINALLY SPACED ON SAID HOUSING FOR ENGAGEMENT BY SAID SPIN-NUTS, A TRIGGER MEMBER SLIDABLE IN SAID HOUSING, A ROLLER CARRIED BY SAID TRIGGER MEMBER AND ROTATABLY ENGAGEABLE WITH SAID SPOOL-SHAPED SPIN-NUT TO MOVE THE SAME ROTATABLY ON SAID ROD AND LINEARLY OF SAID HOUSING AND ROD IN RESPONSE TO RELATIVE LONGITUDINAL MOVEMENT OF SAID HOUSING AND TRIGGER MEMBER, MEANS FOR LOCKING SAID SPOOL-SHAPED SPIN-NUT AGAINST ROTATION ON SAID ROD, INCLUDING A RATCHETING SURFACE FORMED ON AN END FACE OF SAID SPOOL-SHAPED SPIN-NUT AND A RATCHETING MEMBER PIVOTALLY CARRIED BY SAID TRIGGER MEMBER AND HAVING A RATCHETING SURFACE YIELDINGLY URGED TOWARD SPIN-NUT END FACE, AND MEANS FOR SEPARATING SAID RATCHETING SURFACES, INCLUDING A STOP MEMBER SLIDABLY CARRIED BY SAID TRIGGER MEMBER AND POSITIONED TO ENGAGE SAID RATCHETING MEMBER WHEN SAID TRIGGER MEMBER AND HOUSING ARE AT A PREDETERMINED RELATIVE POSITION.
Claim 2
Dependent Claim
177 words
AN AUTOMATIC SLACK ADJUSTER INCLUDING A HOUSING, A ROD RECIPROCAL IN SAID HOUSING, A NUMBER OF SPIN-NUTS THREADABLY MOUNTED ON SAID ROD WITHIN SAID HOUSING, AT LEAST ONE OF SAID SPIN-NUTS BEING SPOOL-SHAPED, A NUMBER OF CLUTCH SURFACES LONGITUDINALLY SPACED ON SAID HOUSING FOR ENGAGEMENT BY SAID SPIN-NUTS, A TRIGGER MEMBER SLIDABLE IN SAID HOUSING, A ROLLER CARRIED BY SAID TRIGGER MEMBER AND ROTATABLY ENGAGEABLE WITH SAID SPOOL-SHAPED SPIN-NUT TO MOVE THE SAME ROTATABLY ON SAID ROD AND LINEARLY OF SAID HOUSING AND ROD IN RESPONSE TO RELATIVE LONGITUDINAL MOVEMENT OF SAID HOUSING AND TRIGGER MEMBER, MEANS FOR LOCKING SAID SPOOL-SHAPED SPIN-NUT AGAINST ROTATION ON SAID ROD, INCLUDING A RATCHETING SURFACE FORMED ON AN END FACE OF SAID SPOOL-SHAPED SPIN-NUT AND A RATCHETING MEMBER PIVOTALLY CARRIED BY SAID TRIGGER MEMBER AND HAVING A RATCHETING SURFACE YIELDINGLY URGED TOWARD SPIN-NUT END FACE, AND MEANS FOR SEPARATING SAID RATCHETING SURFACES, INCLUDING A STOP MEMBER SLIDABLY CARRIED BY SAID TRIGGER MEMBER AND POSITIONED TO ENGAGE SAID RATCHETING MEMBER WHEN SAID TRIGGER MEMBER AND HOUSING ARE AT A PREDETERMINED RELATIVE POSITION.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |