US4432395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe part with socket provided with longitudinally extending channels
Assignee: Wavin BV
•
Filing: 1982-04-21
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Granted: 1984-02-21
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Expires: 2002-04-21
Abstract
Abstract The invention relates to a pipe part with a socket being provided with longitudinally extending channels. The channels extend into the wall of the socket. The socket engages a J-shaped retaining ring which forms with the socket a recess for retaining the flange of a seal that includes a sealing sleeve. The retaining ring adheres to the outer side of the socket by an adhesive.
Inventors
- 👤 Joannes H. Beune
- 👤 Roelof H. Marissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:28
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/06; F16L47/08; F16L47/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
A plastic pipe part with a socket, a wall of said pipe part being provided with longitudinally extending channels, said channels extending into the wall of the socket at least over a part of the length of the socket, a retaining ring, said retaining ring together with said socket forming an annular end groove chamber, said retaining ring being fixed to the outer side of the socket by an adhesive; and a sealing sleeve, said sealing sleeve being connected with a sealing member part received in said annular end groove chamber.
Claim 2
Dependent Claim
91 words
A plastic pipe part with a socket, a wall of said pipe part being provided with longitudinally extending channels, said channels extending into the wall of the socket at least over a part of the length of the socket, a retaining ring, said retaining ring together with said socket forming an annular end groove chamber, said retaining ring being fixed to the outer side of the socket by an adhesive; and a sealing sleeve, said sealing sleeve being connected with a sealing member part received in said annular end groove chamber.
Claim 3
Dependent Claim
19 words
The plastic pipe part according to claim 1, in which the cross-section of the retaining ring is substantially J-shaped.
Claim 4
Dependent Claim
24 words
The plastic pipe part according to claim 1, in which the socket is provided with an end widening means for receiving the sealing sleeve.
Claim 5
Dependent Claim
21 words
The plastic pipe part according to claim 1, in which the front ends of the longitudinally extending channels are sealed off.
Claim 6
Dependent Claim
26 words
The plastic pipe part according to claim 1, in which the front end of the socket is sealed off by a wall providing an end chamfer.
Claim 7
Dependent Claim
31 words
The plastic pipe part according to claim 1, in which the inner diameter of the retaining ring is about equal to or slightly greater than the inner diameter of the socket.
Claim 8
Dependent Claim
38 words
The plastic pipe part according to claim 1, in which the front ends of the longitudinally extending channels are sealed off by a flexible end of a sealing part which sealing part is integral with a sealing sleeve.
Claim 9
Dependent Claim
28 words
The plastic pipe part according to claim 1, in which an end sealing part extends across the outside of the socket and across the inside of the socket.
Claim 10
Dependent Claim
21 words
The plastic pipe part according to claim 1, in which an end sealing part extends across the inside of the socket.
Claim 11
Dependent Claim
17 words
The plastic pipe part according to claim 1, in which the end of the socket is chamfered.
Claim 12
Dependent Claim
49 words
The plastic pipe part according to claim 1, in which the retaining ring engaging the socket consists of a material having a yield capacity and impact resistance exceeding that of the plastic material of the pipe part, said material being one of a polyolefin, a polyethylene and a polypropylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |