Patent DE721969C successfully refreshed from Google Patents.
Patent US3393511A successfully refreshed from Google Patents.
US3393511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure control device
Assignee: Bendix Corp
•
Filing: 1966-09-26
•
Granted: 1968-07-23
•
Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Robert E Reichard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:23
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/26; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7826
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
148 words
A PRESSURE CONTROL DEVICE INCLUDING IN COMBINATION: A HOUSING HAVING AN INLET OPENING, A STEPPED CHAMBER, AN OUTLET OPENING FROM SAID STEPPED CHAMBER, A FIRST BORE, FIRST PASSAGE COMMUNICATION SAID INLET OPENING TO SAID STEPPED CHAMBER AND SAID FIRST BORE, A SECOND PASSAGE COMMUNICATING SAID FIRST BORE TO SAID STEPPED CHAMBER ADJACENT SAID OUTLET OPENING, A SECOND BORE, A THIRD PASSAGE COMMUNICATING SAID INLET OPENING TO SAID SECOND BORE, AND A FOURTH PASSAGE COMMUNICATING SAID SECOND BORE TO SAID STEPPED CHAMBER; A FIRST PRESSURE RESPONSIVE VALVE MEANS HAVING A FIRST PISTON IN SAID FIRST BORE OPERATIVELY CONNECTED TO A FIRST VALVE IN SAID FIRST PASSAGE FOR CONTROLLING FLUID COMMUNICATION THEREFROM TO SAID SECOND PASSAGE; A SECOND PRESSURE RESPONSIVE VALVE MEANS HAVING A SECOND PISTON IS SAID SECOND BORE OPERATIVELY CONNECTED TO A SECOND VALVE IS SAID THIRD PASSAGE FOR CONTROLLING FLUID COMMUNICATION THEREFROM TO SAID FOURTH PASSAGE; AND
References Cited (Backward Citations)
US2899024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |