US3200616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety devices
Assignee: Power Jets Research and Development Ltd
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Filing: 1963-03-08
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Granted: 1965-08-17
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Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 John W Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:21
CPC Classifications
F; F16; F16D; F16D9/00; F16D9/06; F16D9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SAFETY DEVICE FOR A ROTARY MACHINE, WHICH SAFETY DEVICE INCLUDES A TORQUE-TRANSMISSION ELEMENT AND A CONTROL MEANS OPERATED BY SAID TORQUE-TRANSMISSISON ELEMENT TO PREVENT DAMAGE TO THE ROTARY MACHINE, THE TORQUETRANSMISSION ELEMENT INCLUDING TWO PORTIONS JOINED BY A WEAKENED ZONE, SAID WEAKENED ZONE BEING POSITIVELY DEFINED AND LYING ABOUT A PLANE INCLINED TO THE LONGITUDINAL AXIS OF THE ELEMENT WHEREBY ON THE OCCURRENCE OF A PREDETERMINED OVERLOAD TORQUE AID ELEMENT IS ADAPTED TO FRACTURE ALONG SAID WEAKENED ZONE FORMING TWO PARTS, THE WEAKENED ZONE DEFINING A CAM-LIKE SURFACE AT EACH ADJACENT END OF THE SAID TWO PARTS, SAID CAM-LIKE SURFACES COOPERATING ON FRACTURE OF THE WEAKENED ZONE, AXIAL MOVEMENT OF ONE OF SAID PARTS RESULTING FROM RELATIVE ROTATION OF THE CAM-LIKE SURFACES SERVING TO INITIATE OPERATION OF SAID CONTROL MEANS, AND MEANS TO SUPPORT THE OTHER SAID PART FROM AXIAL DISPLACEMENT UPON FRACTURE OF SAID ELEMENT.
Claim 2
Dependent Claim
147 words
A SAFETY DEVICE FOR A ROTARY MACHINE, WHICH SAFETY DEVICE INCLUDES A TORQUE-TRANSMISSION ELEMENT AND A CONTROL MEANS OPERATED BY SAID TORQUE-TRANSMISSISON ELEMENT TO PREVENT DAMAGE TO THE ROTARY MACHINE, THE TORQUETRANSMISSION ELEMENT INCLUDING TWO PORTIONS JOINED BY A WEAKENED ZONE, SAID WEAKENED ZONE BEING POSITIVELY DEFINED AND LYING ABOUT A PLANE INCLINED TO THE LONGITUDINAL AXIS OF THE ELEMENT WHEREBY ON THE OCCURRENCE OF A PREDETERMINED OVERLOAD TORQUE AID ELEMENT IS ADAPTED TO FRACTURE ALONG SAID WEAKENED ZONE FORMING TWO PARTS, THE WEAKENED ZONE DEFINING A CAM-LIKE SURFACE AT EACH ADJACENT END OF THE SAID TWO PARTS, SAID CAM-LIKE SURFACES COOPERATING ON FRACTURE OF THE WEAKENED ZONE, AXIAL MOVEMENT OF ONE OF SAID PARTS RESULTING FROM RELATIVE ROTATION OF THE CAM-LIKE SURFACES SERVING TO INITIATE OPERATION OF SAID CONTROL MEANS, AND MEANS TO SUPPORT THE OTHER SAID PART FROM AXIAL DISPLACEMENT UPON FRACTURE OF SAID ELEMENT.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |