Cap with injected sealant
First Claim
1. A cap for forming a sealed cavity around an end of a fastener, the cap comprising:
- a. a cap body with an annular base terminating at an inner cap rim which surrounds an opening into a central cavity and lies in an inner cap plane around a majority of a circumference of the annular base;
b. a skirt providing an annular pocket between the skirt and the annular base, wherein the skirt has a first part which is integrally formed with the cap body from a first material and terminates at an edge, and a second part which is formed from a second material and extends from the edge of the first part of the skirt to a skirt rim, wherein the skirt extends to or through the inner cap plane around a majority of a circumference of the skirt, the first material has a first elastic modulus, and the second material has a second elastic modulus which is lower than the first elastic modulus; and
c. an inlet hole in the skirt, wherein the inlet hole is in fluid communication with the annular pocket to permit a flow of sealing material through the skirt via the inlet hole into the annular pocket.
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Accused Products
Abstract
A cap for forming a sealed cavity around an end of a fastener is disclosed having a cap body with an annular base terminating at an inner cap rim which surrounds an opening into a central cavity and lies in an inner cap plane around a majority of a circumference of the annular base. A skirt provides an annular pocket between the skirt and the annular base. The skirt has a first part which is integrally formed with the cap body from a first material and terminates at an edge, and a second part which is formed from a second material and extends from the edge of the first part of the skirt to a skirt rim which lies in or below the inner cap plane around a majority of a circumference of the skirt.
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Citations
20 Claims
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1. A cap for forming a sealed cavity around an end of a fastener, the cap comprising:
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a. a cap body with an annular base terminating at an inner cap rim which surrounds an opening into a central cavity and lies in an inner cap plane around a majority of a circumference of the annular base; b. a skirt providing an annular pocket between the skirt and the annular base, wherein the skirt has a first part which is integrally formed with the cap body from a first material and terminates at an edge, and a second part which is formed from a second material and extends from the edge of the first part of the skirt to a skirt rim, wherein the skirt extends to or through the inner cap plane around a majority of a circumference of the skirt, the first material has a first elastic modulus, and the second material has a second elastic modulus which is lower than the first elastic modulus; and c. an inlet hole in the skirt, wherein the inlet hole is in fluid communication with the annular pocket to permit a flow of sealing material through the skirt via the inlet hole into the annular pocket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A cap for forming a sealed cavity around an end of a fastener, the cap comprising:
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a. a cap body with an annular base terminating at an inner cap rim which surrounds an opening into a central cavity and lies in an inner cap plane around a majority of a circumference of the annular base; b. a skirt providing an annular pocket between the skirt and the annular base, wherein the skirt extends from the cap body to a skirt rim forming an annular opening into the annular pocket, and the skirt extends through the inner cap plane around a majority of a circumference of the skirt so that there is an offset between the skirt rim and the inner cap plane; and c. an inlet hole in the skirt, wherein the inlet hole is in fluid communication with the annular pocket to permit a flow of sealing material through the skirt via the inlet hole into the annular pocket. - View Dependent Claims (20)
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Specification