US3198539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic torque cylinder
Assignee: Individual
•
Filing: 1962-07-17
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Granted: 1965-08-03
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Expires: 1982-07-17
Abstract
No abstract record available.
Inventors
- 👤 Wayne W Mcmullen
- 👤 Leo S Goulden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/068; B; B60; B60G; B60G17/00; B60G17/02; B60G17/027; B60G17/0277; B60G21/00; B60G21/02; B60G21/04; B60G21/05; B60G21/055; B60G21/0551; B60G21/0553; B60G21/0555
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN A HYDRAULIC TORQUE CYLINDER, AN ELONGATED CYLINDER AN OUTER HOLLOW CASING SECURED TO THE END OF SAID CYLINDER, AN INNER HOLLOW CASING MOVABLY MOUNTED FOR ROTATION ABOUT ITS OWN LONGITUDINAL AXIS WITHIN SAID OUTER CASING, A SHAFT MEANS EXTENDING THROUGH SAID OUTER CASING AND BEING RIGIDLY SECURED TO SAID INNER CASING, AT LEAST ONE STRAIGHT SLOT IN SAID OUTER CASING, AN ARCUATE SLOT DISPOSED ON A SPIRAL AXIS IN SAID INNER CASING, A PISTON SLIDABLY MOUNTED IN SAID CYLINDER, A ROD PROTRUDING FROM SAID PISTON INTO THE INTERIOR OF SAID INNER AND OUTER CASINGS, A PIN EXTENDING TRANSVERSELY FROM SAID ROD AND EXTENDING INTO THE SLOTS IN SAID INNER AND OUTER CASINGS. MEANS FOR CONNECTING SAID CYLINDER TO A SOURCE OF HYDRAULIC POWER TO RECIPROCATE SAID PISTON AND ROD THEREIN AT TIMES WHEREIN THE RECIPROCAL MOVEMENT OF SAID ROD AND THE PIN SECURED THERETO WILL IMPART RELATIVE ROTATIONAL MOVEMENT BETWEEN SAID INNER AND OUTER CASINGS, AND SAID ARCUATE SLOT IS FORMED WITH AN ARCUATE LOCKING NOTCH AT ITS ENDS TO RETAIN AT TIMES THE END OF THE PIN THAT EXTENDS TRANSVERSELY FROM SAID ROD.
Claim 2
Dependent Claim
185 words
IN A HYDRAULIC TORQUE CYLINDER, AN ELONGATED CYLINDER AN OUTER HOLLOW CASING SECURED TO THE END OF SAID CYLINDER, AN INNER HOLLOW CASING MOVABLY MOUNTED FOR ROTATION ABOUT ITS OWN LONGITUDINAL AXIS WITHIN SAID OUTER CASING, A SHAFT MEANS EXTENDING THROUGH SAID OUTER CASING AND BEING RIGIDLY SECURED TO SAID INNER CASING, AT LEAST ONE STRAIGHT SLOT IN SAID OUTER CASING, AN ARCUATE SLOT DISPOSED ON A SPIRAL AXIS IN SAID INNER CASING, A PISTON SLIDABLY MOUNTED IN SAID CYLINDER, A ROD PROTRUDING FROM SAID PISTON INTO THE INTERIOR OF SAID INNER AND OUTER CASINGS, A PIN EXTENDING TRANSVERSELY FROM SAID ROD AND EXTENDING INTO THE SLOTS IN SAID INNER AND OUTER CASINGS. MEANS FOR CONNECTING SAID CYLINDER TO A SOURCE OF HYDRAULIC POWER TO RECIPROCATE SAID PISTON AND ROD THEREIN AT TIMES WHEREIN THE RECIPROCAL MOVEMENT OF SAID ROD AND THE PIN SECURED THERETO WILL IMPART RELATIVE ROTATIONAL MOVEMENT BETWEEN SAID INNER AND OUTER CASINGS, AND SAID ARCUATE SLOT IS FORMED WITH AN ARCUATE LOCKING NOTCH AT ITS ENDS TO RETAIN AT TIMES THE END OF THE PIN THAT EXTENDS TRANSVERSELY FROM SAID ROD.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |