Patent US4566704A successfully refreshed from Google Patents.
US4566704A
Expired / Lapsed
US
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Sealing body for a pipe connection
Assignee: Wavin BV
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Filing: 1985-03-18
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Granted: 1986-01-28
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Expires: 2005-03-18
Abstract
Abstract A sealing body for a pipe connection bonded chemically and/or mechanically to a fixation part being attachable to an end portion of a socket pipe. The fixation part consists of plastic material or of reticulated elastomer.
Inventors
- 👤 Jan P. van Dongeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:45
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/06; F16L47/08; F16L47/10; B; B29; B29C; B29C45/00; B29C45/16; B29C45/1676; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3268; F16L17/00; F16L17/02; F16L17/025; B29L; B29L2031/00; B29L2031/24; B29L2031/26; B29L2031/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A socket pipe part (29), the outer side of the socket snappingly engaging a retaining ring thus forming an outer annular groove chamber, a head portion (25) of a sealing sleeve (6) being retained in said groove chamber said head portion being chemically intimately bonded to the inner surface of said retaining ring so that no leakage will occur between the bottom (32) and the surface of head portion (25) engaging said bottom when liquid reaches the region between the front end (31) of said socket and part of the head portion opposite its free end.
Claim 2
Dependent Claim
96 words
A socket pipe part (29), the outer side of the socket snappingly engaging a retaining ring thus forming an outer annular groove chamber, a head portion (25) of a sealing sleeve (6) being retained in said groove chamber said head portion being chemically intimately bonded to the inner surface of said retaining ring so that no leakage will occur between the bottom (32) and the surface of head portion (25) engaging said bottom when liquid reaches the region between the front end (31) of said socket and part of the head portion opposite its free end.
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) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |