Fuel cap and seal assembly
First Claim
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1. A fuel tank cap comprising:
- a metal body having an interior bottom surface and an interior side surface; and
a distinct, flexible seal manufactured separate from said body and being positioned within said body and adapted to sealingly engage a filler tube opening, said seal including a base and an arm, said base frictionally positioned against said interior bottom surface and said interior side surface of said body, said arm extending outwardly from said base and positioned out of contact with said interior bottom surface and said interior side surface of said body, wherein said arm defines a first thickness directly adjacent said base and a second thickness in a central region of said arm, and wherein said first thickness is less than said second thickness.
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Abstract
The present invention provides a fuel cap including a body, a seal positioned within the body and adapted for engaging a filler tube opening, the seal manufactured of a material and in a shape such that the seal itself provides the biasing force to secure the cap on the filler tube opening.
3 Citations
20 Claims
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1. A fuel tank cap comprising:
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a metal body having an interior bottom surface and an interior side surface; and a distinct, flexible seal manufactured separate from said body and being positioned within said body and adapted to sealingly engage a filler tube opening, said seal including a base and an arm, said base frictionally positioned against said interior bottom surface and said interior side surface of said body, said arm extending outwardly from said base and positioned out of contact with said interior bottom surface and said interior side surface of said body, wherein said arm defines a first thickness directly adjacent said base and a second thickness in a central region of said arm, and wherein said first thickness is less than said second thickness. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fuel cap comprising:
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a rigid body having an interior surface; and a distinct seal positioned within said body and adapted to sealingly engage a filler tube opening, said seal including a base and an arm, said base frictionally positioned against said interior surface of said body, said arm including an inner, continuously curved surface having a first radius of curvature and an outer, continuously curved surface having a second radius of curvature, said first radius of curvature being greater than said second radius of curvature, and said arm being out of contact with said rigid body at all times. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A fuel cap comprising:
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a rigid body having an interior surface; and a seal manufactured distinct from said body and including a base and an arm, said base frictionally positioned against said interior surface of said body and defining a central aperture of said seal having an elongate axis extending there through, said arm positioned completely out of contact of said body and including a single fuel neck contacting surface positioned perpendicular to said elongate axis. - View Dependent Claims (18, 19, 20)
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Specification