US3267233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic transducer
Assignee: Unisys Corp
•
Filing: 1964-01-31
•
Granted: 1966-08-16
•
Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Basile
- 👤 Raymond E Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34; H01H35/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A SWITCHING DEVICE COMPRISING A HOUSING, A FIRST METAL LAMINATED FLEXIBLE MEMBRANE DISPOSED WITHIN SAID HOUSING TO FORM A FIRST CHAMBER WITH SAID HOUSING, A FLUID INLET CONNECTED TO SAID HOUSING AND LEADING INTO SAID FIRST CHAMBER, A SECOND MEMBRANE METALLIZED ON BOTH SIDES CONNECTED TO FORM A SECOND CHAMBER WITHIN SAID HOUSING BETWEEN SAID FIRST AND SECOND MEMBRANES, A SOLID INSULATOR ELEMENT HAVING METAL SURFACES CONNECTED WITHIN SAID HOUSING TO FORM A THIRD CHAMBER WITH SAID SECOND MEMBRANE, AND MEANS FOR APPLYING FLUID THROUGH SAID FLUID INLET INTO SAID FIRST CHAMBER TO CAUSE SAID FIRST MEMBRANE TO BE FORCED AGAINST SAID SECOND MEMBER TO CAUSE A FIRST SWITCHING ACTION AND SUBSEQUENTLY TO CAUSE SAID SECOND MEMBRANE TO CONTACT SAID SOLID INSULATOR TO CAUSE A SECOND SWITCHING ACTION.
Claim 2
Dependent Claim
128 words
A SWITCHING DEVICE COMPRISING A HOUSING, A FIRST METAL LAMINATED FLEXIBLE MEMBRANE DISPOSED WITHIN SAID HOUSING TO FORM A FIRST CHAMBER WITH SAID HOUSING, A FLUID INLET CONNECTED TO SAID HOUSING AND LEADING INTO SAID FIRST CHAMBER, A SECOND MEMBRANE METALLIZED ON BOTH SIDES CONNECTED TO FORM A SECOND CHAMBER WITHIN SAID HOUSING BETWEEN SAID FIRST AND SECOND MEMBRANES, A SOLID INSULATOR ELEMENT HAVING METAL SURFACES CONNECTED WITHIN SAID HOUSING TO FORM A THIRD CHAMBER WITH SAID SECOND MEMBRANE, AND MEANS FOR APPLYING FLUID THROUGH SAID FLUID INLET INTO SAID FIRST CHAMBER TO CAUSE SAID FIRST MEMBRANE TO BE FORCED AGAINST SAID SECOND MEMBER TO CAUSE A FIRST SWITCHING ACTION AND SUBSEQUENTLY TO CAUSE SAID SECOND MEMBRANE TO CONTACT SAID SOLID INSULATOR TO CAUSE A SECOND SWITCHING ACTION.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |