Patent US5520923A successfully refreshed from Google Patents.
Patent US4911689A successfully refreshed from Google Patents.
US3240342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In-line removable filter assembly
Assignee: NUCLEAR PRODUCTS CO
•
Filing: 1961-11-06
•
Granted: 1966-03-15
•
Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis J Callahan
- 👤 Bernard J Gallagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; B01D29/00; B01D29/11; B01D29/31; B01D29/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A FLOW-LINE FILTER STRUCTURE WHICH COMPRISES AN OUTER BODY HAVING AN AXIAL PASSAGEWAY, AN APERTURED COLLAR WITH INTEGRAL LINE CONNECTION MEANS THEREON RELEASABLY SEALED IN AN END OF SAID PASSAGEWAY, AN APERTURED INNER BODY WITH INTEGRAL LINE CONNECTION MEANS THEREON AND IN RELEASABLY SEALED RELATION WITH SAID OUTER BODY, MEANS TO MAKE SAID OUTER BODY REMOVABLY BY PERMITTING RELATIVE AXIAL MOVEMENT OF SAID OUTER BODY IN AT LEAST ONE DIRECTION WITHOUT AXIAL MOVEMENT OF SAID COLLAR RELATIVE TO SAID INNER BODY, A FILTER ELEMENT DISPOSED IN SAID PASSAGEWAY IN SPACED RELATION TO SAID OUTER BODY, A SPRING AXIALLY URGING SAID FILTER ELEMENT IN RELEASABLY SEALED RELATION WITH SAID COLLAR, SAID SPRING AXIALLY ABUTTING SAID APERTURED INNER BODY WHEREBY SAID FILTER ELEMENT MAY BE REPLACED WITHOUT RELATIVE AXIAL MOVEMENT OF SAID INNER BODY WITH RESPECT TO SAID COLLAR.
Claim 2
Dependent Claim
137 words
A FLOW-LINE FILTER STRUCTURE WHICH COMPRISES AN OUTER BODY HAVING AN AXIAL PASSAGEWAY, AN APERTURED COLLAR WITH INTEGRAL LINE CONNECTION MEANS THEREON RELEASABLY SEALED IN AN END OF SAID PASSAGEWAY, AN APERTURED INNER BODY WITH INTEGRAL LINE CONNECTION MEANS THEREON AND IN RELEASABLY SEALED RELATION WITH SAID OUTER BODY, MEANS TO MAKE SAID OUTER BODY REMOVABLY BY PERMITTING RELATIVE AXIAL MOVEMENT OF SAID OUTER BODY IN AT LEAST ONE DIRECTION WITHOUT AXIAL MOVEMENT OF SAID COLLAR RELATIVE TO SAID INNER BODY, A FILTER ELEMENT DISPOSED IN SAID PASSAGEWAY IN SPACED RELATION TO SAID OUTER BODY, A SPRING AXIALLY URGING SAID FILTER ELEMENT IN RELEASABLY SEALED RELATION WITH SAID COLLAR, SAID SPRING AXIALLY ABUTTING SAID APERTURED INNER BODY WHEREBY SAID FILTER ELEMENT MAY BE REPLACED WITHOUT RELATIVE AXIAL MOVEMENT OF SAID INNER BODY WITH RESPECT TO SAID COLLAR.
References Cited (Backward Citations)
US2761529A
Cited
US852584A
Cited
US1156274A
Cited
US2068048A
Cited
US2819799A
Cited
US3004670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |