US3267864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Effort selector
Assignee: Bendix Corp
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Filing: 1964-11-02
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Granted: 1966-08-23
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 Robert T Eddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:23
CPC Classifications
B; B62; B62D; B62D6/00; F; F15; F15B; F15B13/00; F15B13/14; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
IN A HYDRAULIC POWER STEERING SYSTEM HAVING A PUMP AND A CONTROL VALVE, AN EFFORT SELECTOR DEVICE FOR PERMIT TING A PORTION OF THE FLUID FLOWING FROM SAID PUMP TO SAID CONTROL VALVE TO BYPASS SAID CONTROL VALVE, SAID DEVICE COMPRISING A HOUSING, AN INLET PORT IN SAID HOUSING FOR RECEIVING THE FLUID BEING BYPASSED, AN OUTLET PORT IN SAID HOUSING FOR RETURNING THE BYPASSED FLUID TO SAID SYSTEM, FIRST AND SECOND PASSAGE MEANS LOCATED IN SAID HOUSING FOR COMMUNICATING SAID INLET PORT WITH SAID OUTLET PORT, FIRST RESTRICTED ORIFICE MEANS LOCATED IN SAID FIRST PASSAGE MEANS AND SECOND RESTRICTED ORIFICE MEANS LOCATED IN SAID SECOND PASSAGE MEANS, MEANS OPERATIVELY CONNECTED TO SAID FIRST AND SECOND ORIFICE MEANS FOR VARYING THE RESTRICTION THEREIN, AND MEANS RESPONSIVE TO THE FLUID PRESSURE AT SAID INLET PORT FOR CONTROLLING FLOW THROUGH SAID FIRST AND SECOND PASSAGE MEANS, SAID PRESSURE RESPONSIVE MEANS HAVING A FIRST POSITION AT A PRESSURE BELOW A PREDETERMINED VALUE FOR PERMITTING FLUID FLOW THROUGH SAID FIRST PASSAGE MEANS AND A SECOND POSITION AT A PRESSURE ABOVE A PREDETERMINED VALUE FOR PERMITTING FLUID FLOW THROUGH SAID SECOND PASSAGE MEANS.
Claim 2
Dependent Claim
188 words
IN A HYDRAULIC POWER STEERING SYSTEM HAVING A PUMP AND A CONTROL VALVE, AN EFFORT SELECTOR DEVICE FOR PERMIT TING A PORTION OF THE FLUID FLOWING FROM SAID PUMP TO SAID CONTROL VALVE TO BYPASS SAID CONTROL VALVE, SAID DEVICE COMPRISING A HOUSING, AN INLET PORT IN SAID HOUSING FOR RECEIVING THE FLUID BEING BYPASSED, AN OUTLET PORT IN SAID HOUSING FOR RETURNING THE BYPASSED FLUID TO SAID SYSTEM, FIRST AND SECOND PASSAGE MEANS LOCATED IN SAID HOUSING FOR COMMUNICATING SAID INLET PORT WITH SAID OUTLET PORT, FIRST RESTRICTED ORIFICE MEANS LOCATED IN SAID FIRST PASSAGE MEANS AND SECOND RESTRICTED ORIFICE MEANS LOCATED IN SAID SECOND PASSAGE MEANS, MEANS OPERATIVELY CONNECTED TO SAID FIRST AND SECOND ORIFICE MEANS FOR VARYING THE RESTRICTION THEREIN, AND MEANS RESPONSIVE TO THE FLUID PRESSURE AT SAID INLET PORT FOR CONTROLLING FLOW THROUGH SAID FIRST AND SECOND PASSAGE MEANS, SAID PRESSURE RESPONSIVE MEANS HAVING A FIRST POSITION AT A PRESSURE BELOW A PREDETERMINED VALUE FOR PERMITTING FLUID FLOW THROUGH SAID FIRST PASSAGE MEANS AND A SECOND POSITION AT A PRESSURE ABOVE A PREDETERMINED VALUE FOR PERMITTING FLUID FLOW THROUGH SAID SECOND PASSAGE MEANS.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |