US3618776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter assembly bypass kit
Assignee: Marvel Engineering Co
•
Filing: 1969-10-03
•
Granted: 1971-11-09
•
Expires: 1989-10-03
Abstract
Abstract A filter assembly kit including a closure, a support rod removably secured to the closure, a spacer on the rod, and interchangeable plug and bypass valve elements alternately positionable on the rod.
Inventors
- 👤 Walter J Kudlaty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:30
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/147
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
80 words
For use with a filter housing having an open end and a filter element having an axially open seal, a closure for said housing open end, a rod removably secured to said closure and extending inwardly through said seal, a spacer sleeve surrounding said rod adjacent said closure, a by pass collar and a plug alternately positionable in sealing engagement within said seal and means for alternately positioning said collar and plug on said rod and against said spacer sleeve.
Claim 2
Dependent Claim
80 words
For use with a filter housing having an open end and a filter element having an axially open seal, a closure for said housing open end, a rod removably secured to said closure and extending inwardly through said seal, a spacer sleeve surrounding said rod adjacent said closure, a by pass collar and a plug alternately positionable in sealing engagement within said seal and means for alternately positioning said collar and plug on said rod and against said spacer sleeve.
Claim 3
Dependent Claim
47 words
The structure of claim 1, characterized by and including a bypass valve member having a sliding closing relationship with the inner end of said collar, a spring surrounding said rod and urging said valve member into its closed position and means retaining said spring on said rod.
Claim 4
Dependent Claim
30 words
The structure of claim 1 characterized by and including head means carried by said rod and engaging the opposite end of said plug from that engaged by said spacer sleeve.
Claim 5
Dependent Claim
30 words
The structure of claim 1 characterized by and including an axial threaded well in the inner surface of said closure and formed and adapted for threaded engagement with said rod.
References Cited (Backward Citations)
US2685371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |