US3084800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial filter head
Assignee: Baxter Filtration Corp
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Filing: 1958-11-20
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Granted: 1963-04-09
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Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Baxter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:43
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/09; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18936; Y10T74/1896; Y10T74/18992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FILTER HEAD ASSEMBLY COMPRISING A FRAME, A PAIR OF MATING FILTER HEAD ELEMENTS, MEANS MOUNTING SAID HEAD ELEMENTS ON SAID FRAME FOR MOVEMENT RELATIVE TO EACH OTHER BETWEEN AN OPEN POSITION WHEREIN SAID ELEMENTS ARE SPACED FROM EACH OTHER AND A CLOSED POSITION WHEREIN SAID ELEMENTS ARE IN MATING ENGAGEMENT WITH EACH OTHER TO CO-OPERATIVELY DEFINE A FILTRATION CHAMBER, MEANS NORMALLY BIASING SAID ELEMENTS TOWARD SAID OPEN POSITION, AND CAM MEANS DISPOSED BETWEEN SAID FRAME AND ONE OF SAID ELEMENTS FOR EFFECTING RELATIVE MOVEMENT OF SAID ELEMENTS FROM SAID OPEN POSITION TO SAID CLOSED POSITION AND FOR POSITIVELY MAINTAINING SAID HEAD ELEMENTS IN SAID CLOSED POSITION.
Claim 2
Dependent Claim
107 words
A FILTER HEAD ASSEMBLY COMPRISING A FRAME, A PAIR OF MATING FILTER HEAD ELEMENTS, MEANS MOUNTING SAID HEAD ELEMENTS ON SAID FRAME FOR MOVEMENT RELATIVE TO EACH OTHER BETWEEN AN OPEN POSITION WHEREIN SAID ELEMENTS ARE SPACED FROM EACH OTHER AND A CLOSED POSITION WHEREIN SAID ELEMENTS ARE IN MATING ENGAGEMENT WITH EACH OTHER TO CO-OPERATIVELY DEFINE A FILTRATION CHAMBER, MEANS NORMALLY BIASING SAID ELEMENTS TOWARD SAID OPEN POSITION, AND CAM MEANS DISPOSED BETWEEN SAID FRAME AND ONE OF SAID ELEMENTS FOR EFFECTING RELATIVE MOVEMENT OF SAID ELEMENTS FROM SAID OPEN POSITION TO SAID CLOSED POSITION AND FOR POSITIVELY MAINTAINING SAID HEAD ELEMENTS IN SAID CLOSED POSITION.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |