US3183673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure adapter for master cylinder
Assignee: Parker Hannifin Corp
•
Filing: 1964-03-11
•
Granted: 1965-05-18
•
Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 Maurice L Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:07
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/26; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/218; Y10T292/23; Y10T292/237
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A CLOSURE FOR THE FILLER PORT IN A BRAKE MASTER CYLINDER, SAID CLOSURE COMPRISING RIGID A COVER MEMBER HAVING A PASSAGEWAY THERETHROUGH, MEANS FOR CONNECTING ONE END OF SAID PASSAGEWAY TO A SOURCE OF HYDRAULIC FLUID UNDER PRSSSURE, A RESILIENT SEALING MEMBER DEFINING A PLURALITY OF CYLINDRICAL PLUGS AT THE LOWER SIDE THEREOF, AN UPPER SIDE OF SAID SEALING MEMBER ADAPTED TO SEALINGLY ENGAGE THE LOWER SIDE OF SAID COVER, SAID CYLINDRICAL PLUGS BEING AXIALLY STEPPED SO THAT THE SMALLEST DIAMETER PLUG EXTENDS DOWNWARDLY BEYOND THE NEXT LARGER DIAMETER PLUG, SAID SEALING MEMBER DEFINING A GENERALLY AXIALLY EXTENDING PASSAGEWAY COMMUNICATING WITH THE LOWER END OF SAID COVER PASSAGEWAY, AND CLAMPING MEANS CARRIED BY SAID COVER MEMBER FOR RELEASABLY SECURING SAID CLOSURE TO A MASTER CYLINDER WITH ONE OF SAID PLUGS SEALINGLY INSERTED IN THE FILLER PORT OF SAID MASTER CYLINDER.
Claim 2
Dependent Claim
140 words
A CLOSURE FOR THE FILLER PORT IN A BRAKE MASTER CYLINDER, SAID CLOSURE COMPRISING RIGID A COVER MEMBER HAVING A PASSAGEWAY THERETHROUGH, MEANS FOR CONNECTING ONE END OF SAID PASSAGEWAY TO A SOURCE OF HYDRAULIC FLUID UNDER PRSSSURE, A RESILIENT SEALING MEMBER DEFINING A PLURALITY OF CYLINDRICAL PLUGS AT THE LOWER SIDE THEREOF, AN UPPER SIDE OF SAID SEALING MEMBER ADAPTED TO SEALINGLY ENGAGE THE LOWER SIDE OF SAID COVER, SAID CYLINDRICAL PLUGS BEING AXIALLY STEPPED SO THAT THE SMALLEST DIAMETER PLUG EXTENDS DOWNWARDLY BEYOND THE NEXT LARGER DIAMETER PLUG, SAID SEALING MEMBER DEFINING A GENERALLY AXIALLY EXTENDING PASSAGEWAY COMMUNICATING WITH THE LOWER END OF SAID COVER PASSAGEWAY, AND CLAMPING MEANS CARRIED BY SAID COVER MEMBER FOR RELEASABLY SECURING SAID CLOSURE TO A MASTER CYLINDER WITH ONE OF SAID PLUGS SEALINGLY INSERTED IN THE FILLER PORT OF SAID MASTER CYLINDER.
References Cited (Backward Citations)
US2735601A
Cited
CA669200A
Cited
US1048546A
Cited
US1893102A
Cited
US2670874A
Cited
US2812877A
Cited
US2777293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |