US4570981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adapter seal
Assignee: Eaton Aeroquip LLC
•
Filing: 1984-10-01
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Granted: 1986-02-18
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Expires: 2004-10-01
Abstract
Abstract A seal for use with a conventional conical nose conduit fitting interposed between the conduit fitting parts wherein the seal includes a conical metal portion compressed between the coupling parts establishing metal-to-metal engagement, and the seal also includes an inner end to which an elastomer is bonded, the elastomer being compressed between the fitting surfaces to additionally provide elastomeric sealing.
Inventors
- 👤 Paul J. E. Fournier
- 👤 Joseph F. Reinker, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:36
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/02; F16L19/0212; F16L19/0218; Y; Y10; Y10S; Y10S285/00; Y10S285/91
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
155 words
An adapter seal for use with conduit fittings having a first part having a conical nose of given axial dimension, a second part having a recessed conical surface in axial alignment with the nose and complementary thereto, and connection means axially displacing the nose and conical surface toward each other, in combination, an annular metal seal having a substantially cylindrical circumferential portion, a cone portion depending from said circumferential portion having an axial dimension slightly less than the first part nose axial dimension and having inner and outer parallel sides defining the cone portion radial thickness and terminating in an inner end, and an annular elastomer seal of conical form bonded to said cone portion inner end constituting an extension of said seal cone portion and the conical configuration thereof whereby compression of said cone portion and elastomer seal between the fitting nose and conical surface establishes both a metal-to-metal seal and an elastomer seal.
Claim 2
Dependent Claim
155 words
An adapter seal for use with conduit fittings having a first part having a conical nose of given axial dimension, a second part having a recessed conical surface in axial alignment with the nose and complementary thereto, and connection means axially displacing the nose and conical surface toward each other, in combination, an annular metal seal having a substantially cylindrical circumferential portion, a cone portion depending from said circumferential portion having an axial dimension slightly less than the first part nose axial dimension and having inner and outer parallel sides defining the cone portion radial thickness and terminating in an inner end, and an annular elastomer seal of conical form bonded to said cone portion inner end constituting an extension of said seal cone portion and the conical configuration thereof whereby compression of said cone portion and elastomer seal between the fitting nose and conical surface establishes both a metal-to-metal seal and an elastomer seal.
Claim 3
Dependent Claim
38 words
In an adapter seal as in claim 1, said elastomer seal having inner and outer sides defining its radial thickness, the radial thickness of said elastomer seal being slightly greater than the radial thickness of said cone portion.
References Cited (Backward Citations)
US323731A
Cited
US1649673A
Cited
US830392A
Cited
US923112A
Cited
US1133320A
Cited
US1293163A
Cited
US2635900A
Cited
US2775471A
Cited
US2871036A
Cited
US3139294A
Cited
US3233921A
Cited
US3249372A
Cited
US3262722A
Cited
US4458926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |