US4600222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for coupling polymer conduits to metallic bodies
Assignee: WATERMAN INDUSTRIES Inc
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Filing: 1985-02-13
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Granted: 1986-07-15
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Expires: 2005-02-13
Abstract
Abstract A polymer socket is secured to a metallic conduit by snapping a split polymer sleeve around the conduit with a flange on the sleeve engaged within a groove in the conduit, and then securing the sleeve against spreading. The securing function is provided by an annular insert bonded within the sleeve. A throughbore within the sleeve provides the socket.
Inventors
- 👤 Donald F. Appling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:13
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/20; F16L47/24; F16B; F16B2200/00; F16B2200/40; F16B2200/406; Y; Y10; Y10S; Y10S285/00; Y10S285/915; Y10S285/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T403/00; Y10T403/70; Y10T403/7098
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
81 words
A coupling for securing a polymer pipe in communication with a passage in a metal body, said coupling comprising: a collar secured to the body and opening into the passage, said collar having an external annular groove extending therearound; a split polymer sleeve received around the collar, said sleeve having an inwardly directed flange engaged with the annular groove of the collar; and an annular insert disposed within the sleeve, said insert being complementally engaged with the sleeve and bonded thereto.
Claim 2
Dependent Claim
81 words
A coupling for securing a polymer pipe in communication with a passage in a metal body, said coupling comprising: a collar secured to the body and opening into the passage, said collar having an external annular groove extending therearound; a split polymer sleeve received around the collar, said sleeve having an inwardly directed flange engaged with the annular groove of the collar; and an annular insert disposed within the sleeve, said insert being complementally engaged with the sleeve and bonded thereto.
Claim 3
Dependent Claim
15 words
A coupling according to claim 1 wherein the collar is integral with the metal body.
Claim 4
Dependent Claim
28 words
A coupling according to claim 2 wherein the collar and sleeve are provided with complementally engageable anti-rotation means to prevent rotation of the sleeve relative to the collar.
Claim 5
Dependent Claim
23 words
A coupling according to claim 3 wherein the collar and sleeve are generally cylindrical and the anti-rotation means comprise complemental flats formed thereon.
Claim 6
Dependent Claim
22 words
A coupling according to claim 1 further comprising a gasket between the collar and sleeve to provide a fluid tight seal therebetween.
Claim 7
Independent Claim
156 words
A method of coupling the open end of a metallic conduit in fluid communication with a polymer conduit, said method comprising: forming an annular groove around the metallic conduit in closely spaced relationship to the open end thereof; providing a split polymer sleeve proportioned for complemental engagement around the open end of the metallic conduit, said sleeve having an inwardly directed flange engageable with the groove formed in the metallic conduit upon complemental engagement of the sleeve around the metallic conduit; spreading the sleeve and passing it over the metallic conduit to a condition wherein the flange is in apposition to the groove; contracting the sleeve to a condition wherein the flange is engaged within the groove; securing the sleeve in the contracted condition by bonding an annular insert within the sleeve, said insert having a throughbore proportioned for complemental receipt of the polymer conduit; and bonding the polymer conduit within the throughbore of the insert.
Claim 8
Independent Claim
156 words
A method of coupling the open end of a metallic conduit in fluid communication with a polymer conduit, said method comprising: forming an annular groove around the metallic conduit in closely spaced relationship to the open end thereof; providing a split polymer sleeve proportioned for complemental engagement around the open end of the metallic conduit, said sleeve having an inwardly directed flange engageable with the groove formed in the metallic conduit upon complemental engagement of the sleeve around the metallic conduit; spreading the sleeve and passing it over the metallic conduit to a condition wherein the flange is in apposition to the groove; contracting the sleeve to a condition wherein the flange is engaged within the groove; securing the sleeve in the contracted condition by bonding an annular insert within the sleeve, said insert having a throughbore proportioned for complemental receipt of the polymer conduit; and bonding the polymer conduit within the throughbore of the insert.
Claim 9
Dependent Claim
36 words
A method according to claim 6 further comprising the step of providing a gasket between the sleeve and the metallic conduit to provide a fluid tight seal therebetween upon engagement of the flange within the groove.
Claim 10
Dependent Claim
25 words
A method according to claim 6 wherein the insert is secured within the sleeve so as to abut the open end of the metallic conduit.
Claim 11
Independent Claim
109 words
A method of securing a polymer socket to the open end of a metallic conduit, said method comprising: providing a shoulder on the conduit adjacent the open end thereof; providing a split polymer sleeve proportioned for complemental engagement around the open end of the conduit, said sleeve having an inwardly directed flange engageable with the shoulder on the conduit; spreading the sleeve and passing it over the metallic conduit to a condition wherein the flange is positioned for engagement with the shoulder upon contraction of the sleeve; contracting the sleeve to a condition wherein the flange is engaged with the sleeve; and securing the sleeve in the contracted condition.
Claim 12
Independent Claim
109 words
A method of securing a polymer socket to the open end of a metallic conduit, said method comprising: providing a shoulder on the conduit adjacent the open end thereof; providing a split polymer sleeve proportioned for complemental engagement around the open end of the conduit, said sleeve having an inwardly directed flange engageable with the shoulder on the conduit; spreading the sleeve and passing it over the metallic conduit to a condition wherein the flange is positioned for engagement with the shoulder upon contraction of the sleeve; contracting the sleeve to a condition wherein the flange is engaged with the sleeve; and securing the sleeve in the contracted condition.
Claim 13
Dependent Claim
23 words
A method according to claim 8 wherein the sleeve is secured in the contracted condition by bonding an annular insert within the sleeve.
Claim 14
Dependent Claim
89 words
A coupling for securing a polymer conduit to the open end of a metallic conduit, said coupling comprising: a shoulder fixed relative to the metallic conduit adjacent the open end thereof; a split polymer sleeve received around the metallic conduit, said sleeve having inwardly directed flange means engaged with the shoulder to prevent separation of the sleeve from the conduit; an annular polymer insert disposed within the sleeve, said insert being complementally engaged with the sleeve and bonded thereto to hold the flange means in engagement with the shoulder.
Claim 15
Dependent Claim
89 words
A coupling for securing a polymer conduit to the open end of a metallic conduit, said coupling comprising: a shoulder fixed relative to the metallic conduit adjacent the open end thereof; a split polymer sleeve received around the metallic conduit, said sleeve having inwardly directed flange means engaged with the shoulder to prevent separation of the sleeve from the conduit; an annular polymer insert disposed within the sleeve, said insert being complementally engaged with the sleeve and bonded thereto to hold the flange means in engagement with the shoulder.
Claim 16
Dependent Claim
17 words
A coupling according to claim 11 wherein the insert abuts the open end of the metallic conduit.
Claim 17
Dependent Claim
25 words
A coupling according to claim 12 further comprising a gasket disposed between the sleeve and the metallic conduit to provide a fluid tight seal therebetween.
References Cited (Backward Citations)
US2398788A
Cited
US3163450A
Cited
US3701552A
Cited
US3807776A
Cited
US3826521A
Cited
US4126338A
Cited
US4042262A
Cited
US4128264A
Cited
US4351550A
Cited
US4417753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |