Patent US4394024A successfully refreshed from Google Patents.
US4394024A
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US
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Seal for use with pipes to be fitted one into another with spigot and socket ends
Assignee: RUBBER- EN KUNSTSTOFFABRIEK ENBI BV A CORP OF NETHERLANDS
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Filing: 1981-06-02
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Granted: 1983-07-19
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Expires: 2001-06-02
Abstract
Abstract A seal for use with pipes to be inserted one into another with spigot and socket ends, comprising a sealing sleeve made of an elastomeric material and arranged in the socket, wherein the sleeve is provided with a radially resilient element, the arrangement being such that, after being mounted in the socket, the seal is clamped in the socket by the radial resilience of said element.
Inventors
- 👤 Johannes C. Delhaes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:55
CPC Classifications
E; E03; E03F; E03F3/00; E03F3/04; F; F16; F16L; F16L17/00; F16L17/02; F16L17/03; F16L17/035
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
72 words
A seal for use with pipes to be inserted one into another by means of spigot and socket ends comprising a sealing sleeve made of an elastomeric material, said sleeve being clamped within the socket by a radially resilient bushing provided with outward corrugations extending parallel to the axis of said bushing, said bushing is provided with a collar which is segmented by cuts extending throughout the entire width of said collar.
Claim 2
Dependent Claim
72 words
A seal for use with pipes to be inserted one into another by means of spigot and socket ends comprising a sealing sleeve made of an elastomeric material, said sleeve being clamped within the socket by a radially resilient bushing provided with outward corrugations extending parallel to the axis of said bushing, said bushing is provided with a collar which is segmented by cuts extending throughout the entire width of said collar.
Claim 3
Dependent Claim
58 words
A seal according to claim 1 wherein the sealing sleeve comprises a cylindrical portion provided with recesses extending parallel to the axis of said cylindrical portion, a hammerhead-shaped gasket at one end of the sealing sleeve and a flange at the other end of the sealing sleeve provided with recesses extending throughout the entire width of said flange.
Claim 4
Dependent Claim
27 words
A seal according to claim 2 wherein the outward corrugations of the radially resilient bushing extend into the recesses of the cylindrical portion of the sealing sleeve.
Claim 5
Dependent Claim
23 words
A seal according to claim 2 wherein the segments of the collar extend into the recesses of the flange of the sealing sleeve.
Claim 6
Dependent Claim
28 words
A seal according to claim 1 wherein the outward corrugations of the radially resilient bushing are located in the same radial plane as the cuts of the collar.
Claim 7
Dependent Claim
13 words
A seal according to claim 1 which comprises a radially biased mounting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |