US3341018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and filter by-pass assembly
Assignee: Marvel Engineering Co
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Filing: 1966-08-22
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Granted: 1967-09-12
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Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 Walter J Kndlaty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:27
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/50; B01D29/52; B01D29/54; B01D29/11; B01D29/13; B01D29/15; B01D35/00; B01D35/14; B01D35/147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
A FILTER AND FILTER BY-PASS ASSEMBLY INCLUDING: A FILTER HOUSING HAVING A CHAMBER ADAPTED TO CONTAIN AT LEAST ONE FILTER ELEMENT, AN INLET FITTING AND AN OUTLET FITTING CONNECTED TO SAID CHAMBER, AN INLET PASSAGE AND AN OUTLET PASSAGE FOR SAID CHAMBER FORMED, RESPECTIVELY, IN SAID INLET AND SAID OUTLET FITTINGS, AN INTAKE FITTING ADAPTED TO CONNECT TO SAID CHAMBER INLET FITTING, SAID INTAKE FITTING HAVING AN INLET, AN OUTLET, AND A BYPASS TUBE MOUNTING PASSAGE WITH SAID OUTLET COMMUNICATING WITH SAID CHAMBER INLET PASSAGE, A BY-PASS DISCHARGE FITTING CONNECTED TO SAID CHAMBER OUTLET FITTING, SAID BY-PASS DISCHARGE FITTING HAVING AN INLET, AN OUTLET, AND A BY-PASS TUBE MOUNTING PASSAGE WITH SAID INLET COMMUNICATING WITH SAID CHAMBER HOUSING OUTLET PASSAGE, A BY-PASS TUBE VALVE CONNECTING SAID BY-PASS TUBE MOUNTING PASSAGES OF SAID INTAKE FITTING AND SAID BYPASS DISCHARGE FITTING, WITH SAID BY-PASS TUBE VALVE HAVING TWO POSITIONS, THE FIRST POSITION CONNECTING SAID INLET AND OUTLET OF SAID INTAKE FITTING AND SAID INLET AND OUTLET OF SAID DISCHARGE FITTING AND THE SECOND POSITION CONNECTING SAID INLET OF SAID INTAKE FITTING WITH SAID OUTLET OF SAID BYPASS DISCHARGE FITTING, AND A BY-PASS CHECK VALVE ASSEMBLY REMOVABLY INSERTABLE IN SAID BY-PASS TUBE VALVE TO PREVENT FLOW INTO SAID INTAKE FITTING FROM SAID BY-PASS DISCHARGE FITTING AND TO ALLOW FLOW FROM SAID INTAKE FITTING TO SAID BY-PASS DISCHARGE FITTING.
Claim 2
Dependent Claim
225 words
A FILTER AND FILTER BY-PASS ASSEMBLY INCLUDING: A FILTER HOUSING HAVING A CHAMBER ADAPTED TO CONTAIN AT LEAST ONE FILTER ELEMENT, AN INLET FITTING AND AN OUTLET FITTING CONNECTED TO SAID CHAMBER, AN INLET PASSAGE AND AN OUTLET PASSAGE FOR SAID CHAMBER FORMED, RESPECTIVELY, IN SAID INLET AND SAID OUTLET FITTINGS, AN INTAKE FITTING ADAPTED TO CONNECT TO SAID CHAMBER INLET FITTING, SAID INTAKE FITTING HAVING AN INLET, AN OUTLET, AND A BYPASS TUBE MOUNTING PASSAGE WITH SAID OUTLET COMMUNICATING WITH SAID CHAMBER INLET PASSAGE, A BY-PASS DISCHARGE FITTING CONNECTED TO SAID CHAMBER OUTLET FITTING, SAID BY-PASS DISCHARGE FITTING HAVING AN INLET, AN OUTLET, AND A BY-PASS TUBE MOUNTING PASSAGE WITH SAID INLET COMMUNICATING WITH SAID CHAMBER HOUSING OUTLET PASSAGE, A BY-PASS TUBE VALVE CONNECTING SAID BY-PASS TUBE MOUNTING PASSAGES OF SAID INTAKE FITTING AND SAID BYPASS DISCHARGE FITTING, WITH SAID BY-PASS TUBE VALVE HAVING TWO POSITIONS, THE FIRST POSITION CONNECTING SAID INLET AND OUTLET OF SAID INTAKE FITTING AND SAID INLET AND OUTLET OF SAID DISCHARGE FITTING AND THE SECOND POSITION CONNECTING SAID INLET OF SAID INTAKE FITTING WITH SAID OUTLET OF SAID BYPASS DISCHARGE FITTING, AND A BY-PASS CHECK VALVE ASSEMBLY REMOVABLY INSERTABLE IN SAID BY-PASS TUBE VALVE TO PREVENT FLOW INTO SAID INTAKE FITTING FROM SAID BY-PASS DISCHARGE FITTING AND TO ALLOW FLOW FROM SAID INTAKE FITTING TO SAID BY-PASS DISCHARGE FITTING.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |