US3357183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master cylinder
Assignee: Bendix Corp
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Filing: 1966-10-10
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Granted: 1967-12-12
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Krieger Darwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:27
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A MASTER CYLINDER HAVING A PRIMARY CHAMBER AND A SECONDARY CHAMBER WITH A PRIMARY FLUID DISPLACING MEANS AND A SECONDARY FLUID DISPLACING MEANS WITH MEANS TO OPERATIVELY CONNECT SAID PRIMARY AND SECONDARY MEANS SO THAT THEY MAY BE OPERATED TO GENERATE SEPARATE FLUID PRESSURES FROM SAID PRIMARY CHAMBER AND SAID SECOND-RYARY CHAMBER, SAID MEANS TO OPERATIVELY CONNECT SAID DISPLACEMENT MEANS BEING CHARACTERIZED BY THE FOLLOWING MEMBERS COMPRISING COMBINATIONS: A FIRST SPRING RETAINER AFFIXED TO SAID PRIMARY MEANS; A SECOND SPRING RETAINER OPERATIVELY CONNECTED TO SAID SECONDARY MEANS; A SPRING OPERATIVELY ARRANGED BETWEEN SAID FIRST AND SAID SECOND RETAINERS; AN ADJUSTING MEANS FOR PRELOADING SAID SPRING, WHICH ADJUSTING MEANS IS OPERATIVELY CONNECTED TO SAID PRIMARY MEANS SO AS TO BE VARIABLE IN LENGTH; AND A MEANS TO OPERATIVELY CONNECT SAID ADJUSTING MEANS TO SAID SECOND MEANS INCLUDING A SNAP RING BETWEEN A GROOVE IN A BORE INTERNALLY OF SAID SECONDARY FLUID DISPLACING MEANS WITHIN WHICH A HEAD OF SAID ADJUSTING MEANS IS SLIDABLE AND A GROOVE IN SAID SECOND SPRING RETAINER TO PERMIT INDEPENDENT PRESSURIZATION OF SAID PRIMARY CHAMBER AND SAID SECONDARY CHAMBER AND MAINTAIN A PULLING CONNECTION BETWEEN SAID PRIMARY AND SECONDARY MEANS FOR RETURN OF SAME UPON DEPRESSURIZATION OF SAID PRIMARY AND SECONDARY CHAMBERS.
Claim 2
Dependent Claim
205 words
A MASTER CYLINDER HAVING A PRIMARY CHAMBER AND A SECONDARY CHAMBER WITH A PRIMARY FLUID DISPLACING MEANS AND A SECONDARY FLUID DISPLACING MEANS WITH MEANS TO OPERATIVELY CONNECT SAID PRIMARY AND SECONDARY MEANS SO THAT THEY MAY BE OPERATED TO GENERATE SEPARATE FLUID PRESSURES FROM SAID PRIMARY CHAMBER AND SAID SECOND-RYARY CHAMBER, SAID MEANS TO OPERATIVELY CONNECT SAID DISPLACEMENT MEANS BEING CHARACTERIZED BY THE FOLLOWING MEMBERS COMPRISING COMBINATIONS: A FIRST SPRING RETAINER AFFIXED TO SAID PRIMARY MEANS; A SECOND SPRING RETAINER OPERATIVELY CONNECTED TO SAID SECONDARY MEANS; A SPRING OPERATIVELY ARRANGED BETWEEN SAID FIRST AND SAID SECOND RETAINERS; AN ADJUSTING MEANS FOR PRELOADING SAID SPRING, WHICH ADJUSTING MEANS IS OPERATIVELY CONNECTED TO SAID PRIMARY MEANS SO AS TO BE VARIABLE IN LENGTH; AND A MEANS TO OPERATIVELY CONNECT SAID ADJUSTING MEANS TO SAID SECOND MEANS INCLUDING A SNAP RING BETWEEN A GROOVE IN A BORE INTERNALLY OF SAID SECONDARY FLUID DISPLACING MEANS WITHIN WHICH A HEAD OF SAID ADJUSTING MEANS IS SLIDABLE AND A GROOVE IN SAID SECOND SPRING RETAINER TO PERMIT INDEPENDENT PRESSURIZATION OF SAID PRIMARY CHAMBER AND SAID SECONDARY CHAMBER AND MAINTAIN A PULLING CONNECTION BETWEEN SAID PRIMARY AND SECONDARY MEANS FOR RETURN OF SAME UPON DEPRESSURIZATION OF SAID PRIMARY AND SECONDARY CHAMBERS.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |