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US3171806A Expired / Lapsed US ⏱️ 0.0 years remaining

Fuel filter

Assignee: Individual
•
Filing: 1960-07-15
•
Granted: 1965-03-02
•
Expires: 1980-07-15
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Abstract

No abstract record available.

Inventors

  • 👤 John F Schaffner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 15:10
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D35/02; B01D35/027

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 217 words
A FILTER FOR THE OUTLET OPENING OF A FUEL TANK COMPRISING A HOLLOW BODY DEFINING AN OPENING IN ITS LOWER PORTION ADAPTED TO OVERLIE THE INNER SURFACES OF SAID TANK ABOUT SAID OUTLET OPENING, AT LEAST A PORTION OF SAID BODY BEING OF MAGNETIC MATERIAL WHEREBY SAID BODY MAY BE MAGNETICALLY SECURED OVER SAID OUTLET OPENING AND TO THE INTERNAL SURFACES OF SAID TANK ABOUT SAID OUTLET OPENING, SAID BODY HAVING A SECOND OPENING FORMED THEREIN WITH PORTIONS OF SAID SECOND OPENING DISPOSED ABOVE THE LOWERMOST PORTIONS OF SAID BODY AND COMMUNICATING WITH THE INTERIOR OF SAID BODY, A SCREEN-LIKE FILTER MEMBER CONSTRUCTED OF FLEXIBLE AND RESILIENT MATERIAL AND GENERALLY INVERTED CUP-SHAPED IN CONFIGURATION AND INCLUDING AN UPPER END WALL LOOSELY TELESCOPED DOWNWARDLY OVER SAID BODY, MEANS SECURING A CENTER PORTION OF SAID UPPER END WALL TO THE UPPER PORTION OF SAID BODY IN VERTICALLY ELEVATED POSITION RELATIVE TO THE LATTER, THE LOWER PERIPHERAL EDGES OF SAID INVERTED CUP-SHAPED FILTER MEMBER NORMALLY-POSITIONED SLIGHTLY BELOW THE LOWERMOST PORTION OF SAID BODY WHEREBY THE RESILIENCY OF SAID FILTER MEMBER, WHEN SAID BODY IS MAGNETICALLY DRAWN INTO TIGHT FRICTIONAL ENGAGEMENT WITH THE INNER SURFACES OF SAID TANK, WILL YIELDINGLY URGE THE LOWER PERIPHERAL EDGES OF SAID INVERTED CUP-SAPED FILTER MEMBER INTO FRICTIONAL ENGAGEMENT WITH THE INNER SURFACES OF SAID TANK.
Claim 2
Dependent Claim 217 words
A FILTER FOR THE OUTLET OPENING OF A FUEL TANK COMPRISING A HOLLOW BODY DEFINING AN OPENING IN ITS LOWER PORTION ADAPTED TO OVERLIE THE INNER SURFACES OF SAID TANK ABOUT SAID OUTLET OPENING, AT LEAST A PORTION OF SAID BODY BEING OF MAGNETIC MATERIAL WHEREBY SAID BODY MAY BE MAGNETICALLY SECURED OVER SAID OUTLET OPENING AND TO THE INTERNAL SURFACES OF SAID TANK ABOUT SAID OUTLET OPENING, SAID BODY HAVING A SECOND OPENING FORMED THEREIN WITH PORTIONS OF SAID SECOND OPENING DISPOSED ABOVE THE LOWERMOST PORTIONS OF SAID BODY AND COMMUNICATING WITH THE INTERIOR OF SAID BODY, A SCREEN-LIKE FILTER MEMBER CONSTRUCTED OF FLEXIBLE AND RESILIENT MATERIAL AND GENERALLY INVERTED CUP-SHAPED IN CONFIGURATION AND INCLUDING AN UPPER END WALL LOOSELY TELESCOPED DOWNWARDLY OVER SAID BODY, MEANS SECURING A CENTER PORTION OF SAID UPPER END WALL TO THE UPPER PORTION OF SAID BODY IN VERTICALLY ELEVATED POSITION RELATIVE TO THE LATTER, THE LOWER PERIPHERAL EDGES OF SAID INVERTED CUP-SHAPED FILTER MEMBER NORMALLY-POSITIONED SLIGHTLY BELOW THE LOWERMOST PORTION OF SAID BODY WHEREBY THE RESILIENCY OF SAID FILTER MEMBER, WHEN SAID BODY IS MAGNETICALLY DRAWN INTO TIGHT FRICTIONAL ENGAGEMENT WITH THE INNER SURFACES OF SAID TANK, WILL YIELDINGLY URGE THE LOWER PERIPHERAL EDGES OF SAID INVERTED CUP-SAPED FILTER MEMBER INTO FRICTIONAL ENGAGEMENT WITH THE INNER SURFACES OF SAID TANK.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-03-01 1968-08-31 1969-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-03-01 1972-08-31 1973-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-03-01 1976-08-31 1977-03-02 $7700.00 Window Closed / Lapsed

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