US3156097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic master cylinder
Assignee: Midland Ross Corp
•
Filing: 1963-03-29
•
Granted: 1964-11-10
•
Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Curtis L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:07
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A MASTER CYLINDER STRUCTURE FOR USE IN HYDRAULIC BRAKE SYSTEMS COMPRISING A RESERVOIR OF HYDRAULIC FLUID IN CONSTANT COMMUNICATION WITH THE ATMOSPHERE, A CYLINDER BODY FORMED INTEGRALLY WITH SAID RESERVOIR AND HAVING A FIRST CYLINDER BORE THEREIN, A PORT BETWEEN SAID RESERVOIR AND FIRST CYLINDER BORE MAINTAINING CONSTANT COMMUNICATION THEREBETWEEN, A PISTON MEMBER INCLUDING A PISTON HEAD DISPOSED IN SAID CYLINDER BORE, A TUBE MEMBER CONNECTED TO SAID CYLINDER BODY AND HAVING A SECOND CYLINDER BORE IN AXIAL ALIGNMENT WITH SAID FIRST CYLINDER BORE, SAID PISTON HEAD BEING ENGAGEABLE WITH SAID SECOND CYLINDER BORE AND BEING SMALLER THAN SAID FIRST CYLINDER BORE, SAID PISTON HEAD HAVING AN INITIAL POSITION IN SAID FIRST CYLINDER BORE BETWEEN SAID PORT AND ONE END OF SAID FIRST CYLINDER BORE TO PROVIDE AN ANNULAR PASSAGE SURROUND-
Claim 2
Dependent Claim
131 words
A MASTER CYLINDER STRUCTURE FOR USE IN HYDRAULIC BRAKE SYSTEMS COMPRISING A RESERVOIR OF HYDRAULIC FLUID IN CONSTANT COMMUNICATION WITH THE ATMOSPHERE, A CYLINDER BODY FORMED INTEGRALLY WITH SAID RESERVOIR AND HAVING A FIRST CYLINDER BORE THEREIN, A PORT BETWEEN SAID RESERVOIR AND FIRST CYLINDER BORE MAINTAINING CONSTANT COMMUNICATION THEREBETWEEN, A PISTON MEMBER INCLUDING A PISTON HEAD DISPOSED IN SAID CYLINDER BORE, A TUBE MEMBER CONNECTED TO SAID CYLINDER BODY AND HAVING A SECOND CYLINDER BORE IN AXIAL ALIGNMENT WITH SAID FIRST CYLINDER BORE, SAID PISTON HEAD BEING ENGAGEABLE WITH SAID SECOND CYLINDER BORE AND BEING SMALLER THAN SAID FIRST CYLINDER BORE, SAID PISTON HEAD HAVING AN INITIAL POSITION IN SAID FIRST CYLINDER BORE BETWEEN SAID PORT AND ONE END OF SAID FIRST CYLINDER BORE TO PROVIDE AN ANNULAR PASSAGE SURROUND-
References Cited (Backward Citations)
US2124762A
Cited
US2152350A
Cited
US2377017A
Cited
US2561009A
Cited
DE853565C
Cited
US2615304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |