Patent US3279485A successfully refreshed from Google Patents.
US3279485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety governor for pneumatic tool
Assignee: Rockwell Manufacturing Co
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Filing: 1963-04-22
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Granted: 1966-10-18
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Robert H Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:08
CPC Classifications
F; F01; F01B; F01B25/00; F01B25/02; F01B25/14; B; B24; B24B; B24B55/00; G; G05; G05D; G05D13/00; G05D13/08; G05D13/10; G05D13/28; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/1026; Y10T137/108; Y10T137/1153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A SAFETY GOVERNOR FOR A ROTARY FLUID MOTOR INCLUDING MEANS FORMING AN INLET PASSAGE THROUGH WHICH PRESSURE FLUID IS SUPPLIED TO DRIVE THE MOTOR, MEANS DEFINING AN INLET PORT IS SAID PASSAGE, A CENTRIFUGALLY OPERATED ROTATABLY DRIVEN GOVERNOR INCLUDING A VALVE COOPERATING WITH SAID PORT TO CONTROL THE FLOW OF FLUID THROUGH SAID PORT IN RELATION TO THE ROTATIONAL SPEED OF SAID GOVERNOR, A SAFETY VALVE MEMBER, MEANS MOUNTING SAID VALVE MEMBER IN SAID PASSAGE UPSTREAM OF SAID PORT INCLUDING A LATCH HOLDING SAID VALVE MEMBER NORMALLY SPACED FROM SAID PORT AGAINST THE FLOW OF PRESSURE FLUID ENTERING SAID PORT, AND A CENTRIFUGALLY OPERATED SAFETY RELEASE MECHANISM ROTATABLY DRIVEN WITH SAID GOVERNOR AND OPERATIVELY CONNECTED TO SAID LATCH TO RELEASE THE SAME IN RESPONSE TO OVERSPEEDING CASING SAID SAFETY VALVE MEMBER TO MOVE TOWARD SAID PORT TO BLOCK THE PASSAGE OF FLUID THROUGH SAID PORT.
Claim 2
Dependent Claim
145 words
A SAFETY GOVERNOR FOR A ROTARY FLUID MOTOR INCLUDING MEANS FORMING AN INLET PASSAGE THROUGH WHICH PRESSURE FLUID IS SUPPLIED TO DRIVE THE MOTOR, MEANS DEFINING AN INLET PORT IS SAID PASSAGE, A CENTRIFUGALLY OPERATED ROTATABLY DRIVEN GOVERNOR INCLUDING A VALVE COOPERATING WITH SAID PORT TO CONTROL THE FLOW OF FLUID THROUGH SAID PORT IN RELATION TO THE ROTATIONAL SPEED OF SAID GOVERNOR, A SAFETY VALVE MEMBER, MEANS MOUNTING SAID VALVE MEMBER IN SAID PASSAGE UPSTREAM OF SAID PORT INCLUDING A LATCH HOLDING SAID VALVE MEMBER NORMALLY SPACED FROM SAID PORT AGAINST THE FLOW OF PRESSURE FLUID ENTERING SAID PORT, AND A CENTRIFUGALLY OPERATED SAFETY RELEASE MECHANISM ROTATABLY DRIVEN WITH SAID GOVERNOR AND OPERATIVELY CONNECTED TO SAID LATCH TO RELEASE THE SAME IN RESPONSE TO OVERSPEEDING CASING SAID SAFETY VALVE MEMBER TO MOVE TOWARD SAID PORT TO BLOCK THE PASSAGE OF FLUID THROUGH SAID PORT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |