Patent US3232303A successfully refreshed from Google Patents.
US3232303A
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US
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Demand regulator
Assignee: Avox Systems Inc
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Filing: 1964-07-13
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Granted: 1966-02-01
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Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Charles D Cupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:34
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/02; A62B9/022; A62B9/025; Y; Y10; Y10S; Y10S137/00; Y10S137/908; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/7812; Y10T137/7818; Y10T137/7819
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A DEMAND REGULATOR FOR BREATHING APPARATUS COMPRISING A HOLLOW CASING CONTAINING A BREATHING COMPARTMENT ADAPTED FOR CONNECTION TO A BREATHING MASK OR MOUTHPIECE, A DIAPHRAGM CONNECTED TO SAID CASING AND FORMING A WALL OF SAID COMPARTMENT, SAID DIAPHRAGM BEING RESPONSIVE TO THE PRESSURE IN SAID COMPARTMENT, A BREATHING FLUID SUPPLY CHAMBER IN SAID CASING, A BREATHING FLUID OUTLET COMPARTMENT IN SAID CASING, MEANS INCLUDING A VALUE SEAT CARRIED BY SAID CASING AND A TILT DEMAND VALVE TILTABLE ON SAID SEAT FOR CONTROLLING PASSAGE OF BREATHING FLUID FROM SAID SUPPLY CHAMBER INTO SAID OUTLET COMPARTMENT, SAID OUTLET COMPARTMENT BEING SEPARATED FROM SAID BREATHING COMPARTMENT BY MEANS INCLUDING A SLIDE PIERCED BY AN APERTURE OPENING FROM SAID OUTLET COMPARTMENT INTO SAID BREATHING COMPARTMENT, SAID VALVE HAVING A STEM PASSING THROUGH SAID OUTLET COM-
Claim 2
Dependent Claim
131 words
A DEMAND REGULATOR FOR BREATHING APPARATUS COMPRISING A HOLLOW CASING CONTAINING A BREATHING COMPARTMENT ADAPTED FOR CONNECTION TO A BREATHING MASK OR MOUTHPIECE, A DIAPHRAGM CONNECTED TO SAID CASING AND FORMING A WALL OF SAID COMPARTMENT, SAID DIAPHRAGM BEING RESPONSIVE TO THE PRESSURE IN SAID COMPARTMENT, A BREATHING FLUID SUPPLY CHAMBER IN SAID CASING, A BREATHING FLUID OUTLET COMPARTMENT IN SAID CASING, MEANS INCLUDING A VALUE SEAT CARRIED BY SAID CASING AND A TILT DEMAND VALVE TILTABLE ON SAID SEAT FOR CONTROLLING PASSAGE OF BREATHING FLUID FROM SAID SUPPLY CHAMBER INTO SAID OUTLET COMPARTMENT, SAID OUTLET COMPARTMENT BEING SEPARATED FROM SAID BREATHING COMPARTMENT BY MEANS INCLUDING A SLIDE PIERCED BY AN APERTURE OPENING FROM SAID OUTLET COMPARTMENT INTO SAID BREATHING COMPARTMENT, SAID VALVE HAVING A STEM PASSING THROUGH SAID OUTLET COM-
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |