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US3583710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint for plastic tubes
Assignee: PLASTIC OMNIUM SA
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Filing: 1968-09-20
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Granted: 1971-06-08
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Expires: 1988-09-20
Abstract
Abstract Joint for connecting plastic tubes of differing diameter comprising a ring which is a snap fit onto the end of the larger tube and a sealing member adapted to be held between said end and ring. The sealing ring has a depending outer skirt which engages the inner wall of the larger tube and an inner skirt which bears against the outer wall of the smaller tube. The inner skirt is frustoconical when unstressed, and the ring comprises a transverse rim which prevents the sealing ring from being forced off the end of the smaller tube by pressure within said tube.
Inventors
- 👤 Pierre R Burelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:18
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/02; F16L17/03; F16L17/035; F16L39/00; F16L47/00; F16L47/06; F16L47/08; F16L47/10; Y; Y10; Y10S; Y10S277/00; Y10S277/925; Y10T; Y10T403/00; Y10T403/34; Y10T403/348
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
311 words
A device for mechanically fastening together at least one cylindrical male member and a cylindrical female member provided with a terminal portion having an inner diameter larger than the external diameter of said male member, said device comprising an outer ring dimensioned to encircle the edge of said termiNal portion, said outer ring being provided with an inwardly extending flange defining at least one orifice, the number of such orifices being the same as the number of said cylindrical male members and each of said orifices encircling a different one of said male members, said cylindrical female member comprising an external circular rib and said outer ring comprising a plurality of hooks distributed about the inner circumference of said outer ring and adapted to catch over said rib, a sealing ring of elastic material having a flange positioned between said edge of said terminal portion and said flange on said outer ring, said sealing ring having at least one opening therein, each of said openings being located in alignment with a different one of said first orifices and closely encircling a male member, and at least one inner skirt, each of said inner skirts encircling a different one of the openings in said sealing ring, each of said inner skirts depending from said sealing ring and being, when unstressed, frustoconical in shape, tapering inwardly toward its free edge, but dimensioned to be pressed flat against the outer surface of a male member inserted in the opening in said sealing ring encircled thereby, said sealing ring comprising an outer skirt in sealing contact with the inner surface of said female member, the flange on said outer ring projecting radially inward past the inner surface of said terminal portion so as to provide support for the portion of said sealing ring carrying said skirts against pressure exerted thereon from within said cylindrical members.
Claim 2
Independent Claim
311 words
A device for mechanically fastening together at least one cylindrical male member and a cylindrical female member provided with a terminal portion having an inner diameter larger than the external diameter of said male member, said device comprising an outer ring dimensioned to encircle the edge of said termiNal portion, said outer ring being provided with an inwardly extending flange defining at least one orifice, the number of such orifices being the same as the number of said cylindrical male members and each of said orifices encircling a different one of said male members, said cylindrical female member comprising an external circular rib and said outer ring comprising a plurality of hooks distributed about the inner circumference of said outer ring and adapted to catch over said rib, a sealing ring of elastic material having a flange positioned between said edge of said terminal portion and said flange on said outer ring, said sealing ring having at least one opening therein, each of said openings being located in alignment with a different one of said first orifices and closely encircling a male member, and at least one inner skirt, each of said inner skirts encircling a different one of the openings in said sealing ring, each of said inner skirts depending from said sealing ring and being, when unstressed, frustoconical in shape, tapering inwardly toward its free edge, but dimensioned to be pressed flat against the outer surface of a male member inserted in the opening in said sealing ring encircled thereby, said sealing ring comprising an outer skirt in sealing contact with the inner surface of said female member, the flange on said outer ring projecting radially inward past the inner surface of said terminal portion so as to provide support for the portion of said sealing ring carrying said skirts against pressure exerted thereon from within said cylindrical members.
Claim 3
Dependent Claim
69 words
A device as claimed in claim 1 in which said sealing ring carries at least one annular projection, each of said annular projections being aligned with and extending away from one of said inner skirts and fitting into a different one of said orifices in said outer ring, each annular projection being provided with a lip which laps over the edge of the orifice into which that projection fits.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |