Patent US4331625A successfully refreshed from Google Patents.
US4331625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Socket pipe
Assignee: Wavin BV
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Filing: 1979-11-13
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Granted: 1982-05-25
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Expires: 1999-11-13
Abstract
Abstract Socket pipe of thermoplastics having a groove with longitudinally extending additional recess, which groove is bound by a radially extending head portion.
Inventors
- 👤 Jelle van de Zee
- 👤 Arien Breunis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:49
CPC Classifications
B; B29; B29C; B29C57/00; B29C57/02; B29C57/025; B29C65/00; B29C65/56; B29C65/565; B29C66/00; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5229; B29C66/52291; B29C66/52292; B29C66/52296; B29C66/53; B29C66/534; B29C66/5344; F; F16; F16L; F16L47/00; F16L47/06; F16L47/08; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
218 words
The method of forming a socket pipe of plastic material having at one end thereof an opening and an internal groove for receiving a ring-shaped portion of a sealing body; said pipe also having a radially extending head portion defining one side of said groove; the wall of said one end of said socket pipe being thicker than the remainder of said socket pipe and a recess extending into said thicker portion of said wall; said radially extending head portion being of greater internal diameter than said thicker portion of said wall; said recess comprising an extension of said groove; said recess also being directed away from said opening; said method comprising the steps of positioning said sealing body in said one end of said socket pipe and locating a portion of said sealing body in said recess and another portion of said sealing body at said groove; deforming said radially extending head portion into engagement with the portion of said sealing body at said groove to capture and position said sealing body at said groove; permitting a portion of said sealing body to extend from said recess and said groove into the interior of said socket pipe to form a sealing ring for the end of an adjacent pipe inserted at said end of said socket pipe.
Claim 2
Independent Claim
218 words
The method of forming a socket pipe of plastic material having at one end thereof an opening and an internal groove for receiving a ring-shaped portion of a sealing body; said pipe also having a radially extending head portion defining one side of said groove; the wall of said one end of said socket pipe being thicker than the remainder of said socket pipe and a recess extending into said thicker portion of said wall; said radially extending head portion being of greater internal diameter than said thicker portion of said wall; said recess comprising an extension of said groove; said recess also being directed away from said opening; said method comprising the steps of positioning said sealing body in said one end of said socket pipe and locating a portion of said sealing body in said recess and another portion of said sealing body at said groove; deforming said radially extending head portion into engagement with the portion of said sealing body at said groove to capture and position said sealing body at said groove; permitting a portion of said sealing body to extend from said recess and said groove into the interior of said socket pipe to form a sealing ring for the end of an adjacent pipe inserted at said end of said socket pipe.
Claim 3
Dependent Claim
37 words
The method of claim 1, wherein said head portion is then further deformed from the radial direction so that its edge is re-entrantly directed axially toward the interior of the socket pipe to capture said sealing body.
Claim 4
Dependent Claim
27 words
The method as defined in claim 1, wherein the head portion is integral with the socket pipe and is plasticized and deformed first into a radial direction.
Claim 5
Dependent Claim
43 words
The method as defined in claim 1, wherein the recess in the thickened wall portion possesses rounded edges, and the radially deformed head portion is rounded in the region where the radially deformed head portion passes into the non-radially deformed head portion part.
Claim 6
Dependent Claim
49 words
A method as defined in claim 1, wherein the ring-shaped portion of the sealing body is integral with a sealing sleeve, which can be accomodated in the part of the socket extending from the groove inwards and having a greater inner diameter than the remaining part of the socket.
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) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |