Patent US3823965A successfully refreshed from Google Patents.
US3823965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe joint
Assignee: Individual
•
Filing: 1973-02-26
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Granted: 1974-07-16
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Expires: 1993-02-26
Abstract
Abstract Metal pipes and plastic pipes are joined together by means of an outwardly flanged metal pipe section and a cylindrical plastic connecting member with an inward flange. The metal flange, on the end of the metal pipe section, is located within the cylindrical body portion of the connecting member, the two flanges cooperating to compress a sealing ring in between, with the body of the metal pipe protruding through the flange on the plastic member. A retaining ring fits snugly within the body portion of the connecting member, bears against the metal flange, and holds the joint in assembled position.
Inventors
- 👤 J Emberson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:27
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/20; F16L47/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A pipe joint comprising: a metal pipe section having an outwardly extending flange adjacent one end thereof; a plastic connecting member of generally cylindrical form, having a body portion and an inwardly projecting flange adjacent one end thereof, the flange of said metal pipe section being located within the body portion of the connecting member, and the length of said metal pipe section protruding through the aperture defined by said inwardly projecting flange; a compressible sealing ring located between said flanges effecting liquid seal between said metal pipe section and said connecting member; a retaining ring of generally cylindrical form snugly fitted within the body portion of said connecting member, in contact with the flange of said metal pipe; the body portion of said connecting member being adopted to receive therein the end portion of a plastic pipe section.
Claim 2
Dependent Claim
139 words
A pipe joint comprising: a metal pipe section having an outwardly extending flange adjacent one end thereof; a plastic connecting member of generally cylindrical form, having a body portion and an inwardly projecting flange adjacent one end thereof, the flange of said metal pipe section being located within the body portion of the connecting member, and the length of said metal pipe section protruding through the aperture defined by said inwardly projecting flange; a compressible sealing ring located between said flanges effecting liquid seal between said metal pipe section and said connecting member; a retaining ring of generally cylindrical form snugly fitted within the body portion of said connecting member, in contact with the flange of said metal pipe; the body portion of said connecting member being adopted to receive therein the end portion of a plastic pipe section.
Claim 3
Dependent Claim
21 words
The pipe joint of claim 1 wherein the retaining ring and the plastic pipe section are bonded to said connecting member.
Claim 4
Dependent Claim
27 words
The pipe joint of claim 2 wherein the retaining ring and the plastic pipe section are both of the same thermoplastic material as the plastic connecting member.
Claim 5
Dependent Claim
24 words
The pipe joint of claim 2 wherein the retaining ring and the plastic pipe section are bonded to said connecting member by spot welding.
Claim 6
Dependent Claim
24 words
The pipe joint of claim 2 wherein the retaining ring and the plastic pipe section are bonded to said connecting member by solvent bonding.
Claim 7
Dependent Claim
30 words
The pipe joint of claim 1 wherein the retaining ring is positioned to exert pressure on the flange of said metal pipe section, so as to compress the sealing ring.
Claim 8
Dependent Claim
191 words
Means for connecting plastic pipe to metal pipe, comprising: a metal pipe section having an outwardly extending flange adjacent one end thereof; a plastic connecting member of generally cylindrical form having a body portion and an inwardly extending flange adjaCent one end thereof, the plastic connecting member being dimensioned so as to allow protrusion of the length of the metal pipe section through the aperture defined by said inwardly extending flange, but to cause abutment of the side face of said outwardly extending flange against the opposed side face of said inwardly extending flange; a compressible sealing ring adapted to surround the length of the metal pipe section and contact the opposed side faces of said outwardly extending flange and said inwardly extending flange within the body portion of said plastic connecting member; a plastic retaining ring adapted to fit snugly within the body portion of said plastic connecting member and bear against said end of the metal pipe section; the body portion of the plastic connecting member being adapted to receive therein the end portion of a plastic pipe, in abutment with the end face of said plastic retaining member.
Claim 9
Dependent Claim
191 words
Means for connecting plastic pipe to metal pipe, comprising: a metal pipe section having an outwardly extending flange adjacent one end thereof; a plastic connecting member of generally cylindrical form having a body portion and an inwardly extending flange adjaCent one end thereof, the plastic connecting member being dimensioned so as to allow protrusion of the length of the metal pipe section through the aperture defined by said inwardly extending flange, but to cause abutment of the side face of said outwardly extending flange against the opposed side face of said inwardly extending flange; a compressible sealing ring adapted to surround the length of the metal pipe section and contact the opposed side faces of said outwardly extending flange and said inwardly extending flange within the body portion of said plastic connecting member; a plastic retaining ring adapted to fit snugly within the body portion of said plastic connecting member and bear against said end of the metal pipe section; the body portion of the plastic connecting member being adapted to receive therein the end portion of a plastic pipe, in abutment with the end face of said plastic retaining member.
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |