US3815744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter construction
Assignee: Individual
•
Filing: 1973-01-02
•
Granted: 1974-06-11
•
Expires: 1993-01-02
Abstract
Abstract A fuel filter comprises: A. AN ELONGATED ROD-LIKE BODY HAVING OPPOSITE END PORTIONS WHICH HAVE LENGTHWISE EXTENDING RELIEFS AT THE SIDES THEREOF, SAID END PORTIONS ALSO HAVING PERIPHERAL THREAD SECTIONS CIRCUMFERENTIALLY INTERRUPTED BY SAID RELIEFS, B. THREADED CAPS MOUNTED ON SAID BODY THREAD SECTIONS TO EXTEND ABOUT THE RELIEFS, C. A POROUS TUBULAR FILTER ELEMENT THROUGH WHICH THE BODY PROJECTS, D. THE BODY HAVING A CLOSURE THEREON TO CLOSE ONE END OF THE FILTER ELEMENT SO THAT THE ELEMENT IS RETAINED BETWEEN SAID CLOSURE AND ONE OF SAID END CAPS CLOSING THE OPPOSITE END OF SAID ELEMENT, ONE BODY END PORTION RELIEF THEN HAVING DIRECT COMMUNCIATION WITH THE OUTSIDE OF THE FILTER ELEMENT AND THE OTHER BODY END PORTION RELIEF THEN HAVING DIRECT COMMUNICATION WITH THE INSIDE OF THE FILTER ELEMENT, AND E. A CASING HAVING OPPOSITE ENDS RETAINED AT SAID END CAPS AND WITHIN WHICH SAID BODY PROJECTS.
Inventors
- 👤 A Vanderpoel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:33
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
A filter comprising a. an elongated rod-like body having opposite end portions each of which has endwise extending slots at opposite sides thereof to define two elongated side openings intersecting the tip of each said portion, said end portions also having peripheral thread sections circumferentially interrupted by said openings, the length of each said opening exceeding the length of the thread section interrupted thereby, b. threaded caps mounted on said body thread sections to extend about the reliefs, c. a porous tubular filter element through which the body projects, d. the body having a closure thereon to close one end of the filter element so that the element is retained between said closure and one of said end caps closing the opposite end of said element, one body end portion openings then having direct communication with the outside of the filter element and the other body end portion openings then having direct communication with the inside of the filter element, and e. a casing having opposite ends retained at said end caps and within which said body projects.
Claim 2
Dependent Claim
178 words
A filter comprising a. an elongated rod-like body having opposite end portions each of which has endwise extending slots at opposite sides thereof to define two elongated side openings intersecting the tip of each said portion, said end portions also having peripheral thread sections circumferentially interrupted by said openings, the length of each said opening exceeding the length of the thread section interrupted thereby, b. threaded caps mounted on said body thread sections to extend about the reliefs, c. a porous tubular filter element through which the body projects, d. the body having a closure thereon to close one end of the filter element so that the element is retained between said closure and one of said end caps closing the opposite end of said element, one body end portion openings then having direct communication with the outside of the filter element and the other body end portion openings then having direct communication with the inside of the filter element, and e. a casing having opposite ends retained at said end caps and within which said body projects.
Claim 3
Dependent Claim
25 words
The combination of claim 1 wherein at least one of the caps has a projecting tubular terminal which is threaded to receive a threaded fitting.
Claim 4
Dependent Claim
19 words
The combination of claim 2 wherein the other cap has a projecting tubular terminal which defines a hose nipple.
Claim 5
Dependent Claim
21 words
The combination of claim 1 wherein each cap has a projecting tubular terminal which is threaded to receive a threaded fitting.
Claim 6
Dependent Claim
34 words
The combination of claim 1 including a protection clip received over said casing to be forcibly rotatable therearound, the clip defining an aperture through which a transparent portion of the casing may be viewed.
Claim 7
Dependent Claim
20 words
The combination of claim 5 wherein the clip is U-shaped and spring urged to resist sideward dislodgement off the casing.
Claim 8
Dependent Claim
15 words
The combination of claim 5 wherein the clip has opposite end attachment to said caps.
Claim 9
Dependent Claim
14 words
The combination of claim 1 wherein said body end portions have I-shaped cross sections.
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |