US3193102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filters
Assignee: ZF International UK Ltd
•
Filing: 1962-06-14
•
Granted: 1965-07-06
•
Expires: 1982-06-14
Abstract
No abstract record available.
Inventors
- 👤 Bottoms Harry Simister
- 👤 Campbell Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:45
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/157; B01D29/00; B01D29/11; B01D29/117; B01D29/118; B01D29/60; B01D29/606; B01D29/62; B01D29/64; B01D29/6438; B01D29/88; B01D29/90; B01D29/902; B01D2201/00; B01D2201/02; B01D2201/28; B01D2201/282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A WASH FILTER COMPRISING IN COMBINATION A BODY PART, A MAIN PASSAGE DEFINED WITHIN THE BODY, PART, SAID MAIN PASSAGE INCLUDING LIQUID INLET AND OUTLET MEANS FORMED IN THE BODY PART FOR CAUSING LIQUID TO FLOW THROUGH THE MAIN PASSAGE, A BRANCH PASSAGE EXTENDING FROM SAID MAIN PASSAGE, A TUBULAR FILTER ELEMENT LOCATED IN THE MAIN PASSAGE BETWEEN THE BRANCH PASSAGE AND THE INLET MEANS, SAID FILTER ELEMENT BEING TAPERED TOWARDS SAID INLET MEANS, A PAIR INCLUDING MEANS MOUNTING SAID PART IN SPACED RELATIONSHIP WITHIN THE FILTER ELEMENT FOR CAUSING LIQUID FLOWING THROUGH THE MAIN PASSAGE TO FLOW AGAINST THE INLET SIDE SURFACE OF THE FILTER ELEMENT TO WASH THEREFROM ANY CONTAMINANT DEPOSITED THEREON FROM LIQUID PASSING THE BRANCH PASSAGE, SAID MEANS MOUNTING SAID PART SO AS TO PERMIT LIMITED AXIAL MOVEMENT THEREOF RELATIVE TO THE FILTER ELEMENT, SAID MOUNTING MEANS INCLUDING A SPRING FOR URGING THE PART TOWARDS THE INLET END OF THE FILTER ELEMENT WHEREBY AS THE RATE OF FLOW THROUGH THE MAIN PASSAGE INCREASES THE PART WILL BE MOVED AGAINST THE ACTION OF THE SPRING AND THE SIZE OF THE SPACE DEFINED BETWEEN THE FILTER ELEMENT AND THE PART WILL INCREASE DUE TO THE TAPERING FORM OF THE FILTER ELEMENT.
Claim 2
Dependent Claim
203 words
A WASH FILTER COMPRISING IN COMBINATION A BODY PART, A MAIN PASSAGE DEFINED WITHIN THE BODY, PART, SAID MAIN PASSAGE INCLUDING LIQUID INLET AND OUTLET MEANS FORMED IN THE BODY PART FOR CAUSING LIQUID TO FLOW THROUGH THE MAIN PASSAGE, A BRANCH PASSAGE EXTENDING FROM SAID MAIN PASSAGE, A TUBULAR FILTER ELEMENT LOCATED IN THE MAIN PASSAGE BETWEEN THE BRANCH PASSAGE AND THE INLET MEANS, SAID FILTER ELEMENT BEING TAPERED TOWARDS SAID INLET MEANS, A PAIR INCLUDING MEANS MOUNTING SAID PART IN SPACED RELATIONSHIP WITHIN THE FILTER ELEMENT FOR CAUSING LIQUID FLOWING THROUGH THE MAIN PASSAGE TO FLOW AGAINST THE INLET SIDE SURFACE OF THE FILTER ELEMENT TO WASH THEREFROM ANY CONTAMINANT DEPOSITED THEREON FROM LIQUID PASSING THE BRANCH PASSAGE, SAID MEANS MOUNTING SAID PART SO AS TO PERMIT LIMITED AXIAL MOVEMENT THEREOF RELATIVE TO THE FILTER ELEMENT, SAID MOUNTING MEANS INCLUDING A SPRING FOR URGING THE PART TOWARDS THE INLET END OF THE FILTER ELEMENT WHEREBY AS THE RATE OF FLOW THROUGH THE MAIN PASSAGE INCREASES THE PART WILL BE MOVED AGAINST THE ACTION OF THE SPRING AND THE SIZE OF THE SPACE DEFINED BETWEEN THE FILTER ELEMENT AND THE PART WILL INCREASE DUE TO THE TAPERING FORM OF THE FILTER ELEMENT.
References Cited (Backward Citations)
US3109809A
Cited
US3120490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |