US3698727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distortable seal ring
Assignee: Meggitt Simi Valley Inc
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Filing: 1971-05-17
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Granted: 1972-10-17
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Expires: 1991-05-17
Abstract
Abstract A seal ring of essentially U-shaped or J-shaped cross section is intended to be interposed between a coupling having a radially inwardly directed wall and a conduit tube loosely received therein; wherein, the axially outer radial wall of the seal ring formed of elastomer impregnated laminations of fiber glass or similar material capable of axial distortion bears against the coupling end wall and is joined to a radially and axially inwardly curved conduit engaging a semitoroidal portion capable of axial as well as radial distortion, the interior of the seal ring including the inner surface of the outer radial wall, being exposed to pressure within the coupling and conduit. Certain embodiments of the seal ring include a core of elastomeric material or a toroidal compression spring or both, and one embodiment having a radially outer cap band separated by a slit from the axially inner side of the seal ring.
Inventors
- 👤 Fred A Greenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:46
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3216; F16J15/3284
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
195 words
A seal interposed between a conduit member and a surrounding coupling member, wherein one of the members includes a wall fixed thereto and extending radially therefrom into confronting relation with the other member, the wall separating the interior of the conduit from the region surrounding the conduit and the coupling, said seal comprising: a. multiple laminations of elastomer impregnated fabric defining a ring having a planar radially extending portion positionable in sealing engagement with the radially extending wall, and a continuing portion of semitoroidal form curving into and beyond sealing engagement with one of the members; b. the laminations of the radially extending portion and semitoroidal portion forming at their juncture a circular hinge portion to permit angular turning of the semitoroidal portion with respect to the radially extending portion and a partial flattening of the semitoroidal portion against the member engaged thereby in response to fluid pressure on the surface of the semitoroidal portion exposed thereto; c. and an elastic means within the semitoroidal portion and resisting, when the semitoroidal portion is subject to fluid pressure, extrusion movement of the semitoroidal portion through the space between the radially extending wall and the other member.
Claim 2
Dependent Claim
195 words
A seal interposed between a conduit member and a surrounding coupling member, wherein one of the members includes a wall fixed thereto and extending radially therefrom into confronting relation with the other member, the wall separating the interior of the conduit from the region surrounding the conduit and the coupling, said seal comprising: a. multiple laminations of elastomer impregnated fabric defining a ring having a planar radially extending portion positionable in sealing engagement with the radially extending wall, and a continuing portion of semitoroidal form curving into and beyond sealing engagement with one of the members; b. the laminations of the radially extending portion and semitoroidal portion forming at their juncture a circular hinge portion to permit angular turning of the semitoroidal portion with respect to the radially extending portion and a partial flattening of the semitoroidal portion against the member engaged thereby in response to fluid pressure on the surface of the semitoroidal portion exposed thereto; c. and an elastic means within the semitoroidal portion and resisting, when the semitoroidal portion is subject to fluid pressure, extrusion movement of the semitoroidal portion through the space between the radially extending wall and the other member.
Claim 3
Dependent Claim
31 words
A seal ring, as defined in claim 1, wherein: a. the elastic means is a semitoroidal elastomer core contained in the space defined by the semitoroidal sealing wall, and bonded thereto.
Claim 4
Dependent Claim
21 words
A seal ring, as defined in claim 1, wherein: a. the elastic means is a spring contained in the semitoroidal wall.
Claim 5
Dependent Claim
35 words
A seal ring, as defined in claim 1, wherein: a. the elastic means includes a semitoroidal elastomer core contained in the semitoroidal sealing wall and bonded thereto and a garter spring embedded in the core.
Claim 6
Dependent Claim
35 words
A seal ring, as defined in claim 1, wherein: a. the elastomer impregnated fabric laminations further include a second annular planar wall continuing from the semitoroidal wall in essentially parallel relation to the first wall.
Claim 7
Dependent Claim
25 words
A seal ring, as defined in claim 5, wherein: a. the second wall is equal in radial dimension to the first wall and is perforated.
Claim 8
Dependent Claim
22 words
A seal ring, as defined in claim 5, wherein: a. the second wall is of lesser radial dimension that the first wall.
Claim 9
Dependent Claim
49 words
A seal ring, as defined in claim 5, wherein: a. the second wall is coextensive with the first wall; b. and the elastic means is an elastomer core filling the space defined by the semitoroidal wall and the space between the first and second walls, and is bonded thereto.
Claim 10
Dependent Claim
30 words
A seal ring, as defined in claim 5, wherein: a. the elastic means is a separable elastomer core disposed within the semitoroidal wall and between the first and second walls.
Claim 11
Dependent Claim
42 words
A seal ring, as defined in claim 5, wherein: a. the second wall is coextensive with the first wall; b. and the elastic means is an elastomer bonded to the first wall and second wall and provided with a central radial slit.
Claim 12
Dependent Claim
22 words
A seal ring, as defined in claim 5, wherein: a. the exterior surface of the laminations are provided with an elastomer coating.
Claim 13
Dependent Claim
62 words
A seal ring, as defined in claim 5, wherein: a. the second wall is of lesser radial dimension than the first wall; b. The elastomer impregnated fabric laminations continue axially from the radially outer extremity of the first wall and overlap the second wall defining therewith an annular slit; c. and the elastic means is a spring insertable through the annular slit.
Claim 14
Dependent Claim
80 words
A seal ring, comprising: a. multiple laminations of elastomeric impregnated fabric defining a ring of J-shaped cross sectiOn, including a semitoroidal portion adapted for sealing engagement with a confronting cylindrical surface, and a radial portion adapted for sealing engagement with a radially directed planar surface surrounding the cylindrical surface and spaced therefrom; b. and a circular spring received in the semitoroidal portion and resisting extrusion of the seal ring through the space between the cylindrical surface and the planar surface.
Claim 15
Dependent Claim
80 words
A seal ring, comprising: a. multiple laminations of elastomeric impregnated fabric defining a ring of J-shaped cross sectiOn, including a semitoroidal portion adapted for sealing engagement with a confronting cylindrical surface, and a radial portion adapted for sealing engagement with a radially directed planar surface surrounding the cylindrical surface and spaced therefrom; b. and a circular spring received in the semitoroidal portion and resisting extrusion of the seal ring through the space between the cylindrical surface and the planar surface.
Claim 16
Dependent Claim
53 words
A seal ring, as defined in claim 13, wherein: a. the multiple laminations continue axially from the radial portion into confronting relation with the opposite side of the seal ring and define therewith an annular slit to permit pressurizing the interior of the seal ring and to permit insertion of the seal ring.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |