US4044515A — Gasket for an avionic tray

Claim 1

Independent Claim 233 words

A gasket for use in an avionic tray having an apertured rim and a removable metering plate comprising: an annular flexible gasket body member having an inner and outer side and a first hollow annular passageway; means defining a first groove on the outer side of the gasket body member for receiving the apertured rim; means defining a second groove above the first groove on the inner side of the gasket body member for detachably receiving the metering plate, the first and second grooves being generally parallel and, the depth of the first groove into the gasket body member overlaps the depth of the second groove into the gasket body member; and means defining a concave annular sealing surface extending above the second groove, immediately above the first annular passageway and generally parallel therewith for wedging the metering plate in the second groove towards the apertured rim in the first groove when a force is exerted on the same side of the sealing surface means as the first groove whereby the gasket body member is progressively locked tighter between the rim and the metering plate as the force increases, the first annular passageway surface configuration permits a deformational movement of the gasket body member by any force applied against the sealing surface area of the gasket body member while maintaining a continual planar sealing surface throughout the length of the gasket body member.

Claim 2

Dependent Claim 233 words

A gasket for use in an avionic tray having an apertured rim and a removable metering plate comprising: an annular flexible gasket body member having an inner and outer side and a first hollow annular passageway; means defining a first groove on the outer side of the gasket body member for receiving the apertured rim; means defining a second groove above the first groove on the inner side of the gasket body member for detachably receiving the metering plate, the first and second grooves being generally parallel and, the depth of the first groove into the gasket body member overlaps the depth of the second groove into the gasket body member; and means defining a concave annular sealing surface extending above the second groove, immediately above the first annular passageway and generally parallel therewith for wedging the metering plate in the second groove towards the apertured rim in the first groove when a force is exerted on the same side of the sealing surface means as the first groove whereby the gasket body member is progressively locked tighter between the rim and the metering plate as the force increases, the first annular passageway surface configuration permits a deformational movement of the gasket body member by any force applied against the sealing surface area of the gasket body member while maintaining a continual planar sealing surface throughout the length of the gasket body member.

Claim 3

Dependent Claim 14 words

The invention of claim 1 wherein the gasket member is formed of silicone rubber.

Claim 4

Dependent Claim 27 words

The invention of claim 1 wherein the sealing surface comprises a V-shaped groove having a pair of radially spaced sealing contact surfaces along the annular body member.

Claim 5

Dependent Claim 20 words

The invention of claim 3 wherein the first hollow passageway extends below the sealing surface and above the second groove.

Claim 6

Dependent Claim 23 words

The invention of claim 1 wherein the body member defines a second hollow annular passageway between the second groove and the first passageway.

Claim 7

Dependent Claim 43 words

The invention of claim 5 wherein the first annular passageway surface configuration has a cross-sectional convex configuration which permits a deformational closing of annular passageway area while maintaining a constant sealing surface plane even when the gasket body member forms an oblong shape.

Claim 8

Dependent Claim 188 words

In an avionic tray assembly supporting removable modular equipment such as electronic instruments having a support surface and a recessed apertured rim below the support surface, relative to the equipment, and a removable metering plate, the improvement comprising: an annular flexible gasket body member having an inner and outer side; means defining a first groove on the outer side of the gasket body member for receiving the apertured rim of the tray; means defining a second groove above the first groove on the inner side of the gasket body member for detachably receiving the metering plate; and means for defining an annular planar sealing surface extending above the second groove and further extending above the adjacent tray support surface, for wedging the metering plate in the second groove towards the apertured rim in the first groove when a force is exerted on the same side of the sealing surface means as the first groove and cooperating with the gasket body member for progressively tightening the seal between the gasket body member, the rim and the metering plate as the force increases, while maintaining said sealing surface continuously planar.

Claim 9

Dependent Claim 188 words

In an avionic tray assembly supporting removable modular equipment such as electronic instruments having a support surface and a recessed apertured rim below the support surface, relative to the equipment, and a removable metering plate, the improvement comprising: an annular flexible gasket body member having an inner and outer side; means defining a first groove on the outer side of the gasket body member for receiving the apertured rim of the tray; means defining a second groove above the first groove on the inner side of the gasket body member for detachably receiving the metering plate; and means for defining an annular planar sealing surface extending above the second groove and further extending above the adjacent tray support surface, for wedging the metering plate in the second groove towards the apertured rim in the first groove when a force is exerted on the same side of the sealing surface means as the first groove and cooperating with the gasket body member for progressively tightening the seal between the gasket body member, the rim and the metering plate as the force increases, while maintaining said sealing surface continuously planar.

Claim 10

Dependent Claim 61 words

The invention of claim 7 wherein the annular sealing surface has a V-shaped groove forming a pair of radially spaced sealing contact surfaces, and a first annular passageway surface configuration including a cross-sectional convex configuration which predisposes any deformational closing of the annular passageway area by a force from the modular equipment so that a constant planar sealing surface is maintained.

Claim 11

Dependent Claim 44 words

The invention of claim 7 wherein the first and second grooves are aligned generally parallel in the gasket body member and the depth of the first groove into the gasket body member overlaps the depth of the second groove into the gasket body member.

Claim 12

Dependent Claim 44 words

The invention of claim 8 wherein the first and second grooves are aligned generally parallel in the gasket body member and the depth of the first groove into the gasket body member overlaps the depth of the second groove into the gasket body member.

Claim 13

Dependent Claim 15 words

The invention of claim 8 wherein the first annular passageway forms an M cross-sectional shape.

Claim 14

Dependent Claim 142 words

In a gasket for sealing between several members including the edge of a first apertured surface recessed from a second substantially planar surface, a plate disposed within the recess defined by said first and second surfaces and a third surface overslidably insertable on said second surface, the combination comprising: an outer side stepped in shape to occupy said recess, the step leading to a first groove penetrating into the side of said gasket; an inner side stepped in shape, the step in the inner side being above the step on the outer side and leading to a second groove penetrating into the gasket to a depth overlapping the depth of penetration of said first groove; and a top portion joining said inner and outer sides at a height sufficient to rise slightly above said second surface and having a hollow passageway therein.

Claim 15

Dependent Claim 142 words

In a gasket for sealing between several members including the edge of a first apertured surface recessed from a second substantially planar surface, a plate disposed within the recess defined by said first and second surfaces and a third surface overslidably insertable on said second surface, the combination comprising: an outer side stepped in shape to occupy said recess, the step leading to a first groove penetrating into the side of said gasket; an inner side stepped in shape, the step in the inner side being above the step on the outer side and leading to a second groove penetrating into the gasket to a depth overlapping the depth of penetration of said first groove; and a top portion joining said inner and outer sides at a height sufficient to rise slightly above said second surface and having a hollow passageway therein.

Claim 16

Dependent Claim 101 words

A gasket for sealing between several members including the edge of a first apertured surface attached to and recessed from a second surface, a plate disposed within the recess defined by said first and second surfaces and a third surface overslidably insertable on said second surface, said gasket comprising: means for sealably abutting said third surface and at least partially encompassing the edge of said apertured surface and the edge of said plate and for reacting to the oversliding of said third surface to increase the sealing forces on the edge of said apertured surface and the edge of said plate.

Claim 17

Dependent Claim 101 words

A gasket for sealing between several members including the edge of a first apertured surface attached to and recessed from a second surface, a plate disposed within the recess defined by said first and second surfaces and a third surface overslidably insertable on said second surface, said gasket comprising: means for sealably abutting said third surface and at least partially encompassing the edge of said apertured surface and the edge of said plate and for reacting to the oversliding of said third surface to increase the sealing forces on the edge of said apertured surface and the edge of said plate.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-08-29	1981-02-28	1981-08-30	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-08-29	1985-02-28	1985-08-30	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-08-29	1989-02-28	1989-08-30	$7700.00	Window Closed / Lapsed

Gasket for an avionic tray

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