Patent US4473192A successfully refreshed from Google Patents.
Patent US3210043A successfully refreshed from Google Patents.
US3210043A
Expired / Lapsed
US
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Apparatus for controlling the flow of fluids
Assignee: Ritter Co Inc
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Filing: 1962-11-07
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Granted: 1965-10-05
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Expires: 1982-11-07
Abstract
No abstract record available.
Inventors
- 👤 Karl H Burzlaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:11
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7727
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
IN COMBINATION, (A) A FREE FLOATING VALVE, (B) A VALVE BODY HAVING AN UPWARDLY DISPOSED CHAMBER RECEIVING SAID VALVE, (C) SAID CHAMBER HAVING: AN OUTLET AT THE UPPER END, A VALVE RECEIVING PORTION AT THE LOWER END ADAPTED FOR RECEIVING SAID VALVE WHEN IN A NORMALLY OPEN POSITION, AND AN INLET INTERMEDIATE SAID OUTLET AND SAID VALVE WHEN IN THE NORMALLY OPEN POSITION AND (D) ACTUATOR MEANS ACTING AT SAID CHAMBER SELECTIVELY MOVING SAID VALVE INTO THE FLUID FLOW PATH FROM SAID INLET TO SAID OUTLET, THEREBY TO BE CARRIED TO SAID OUTLET FOR CLOSURE THEREOF.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |