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US3857589A Expired / Lapsed US ⏱️ 0.0 years remaining

Pipe connection with clamping ring

Assignee: Wavin BV
•
Filing: 1972-12-12
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Granted: 1974-12-31
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Expires: 1992-12-12
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Abstract

Abstract A pipe connection of a penetrating and a receiving pipe part, and a sealing lip connected with a body part which is held by a clamping ring removably connected with the receiving pipe part. A cavity is present between the inner front side of the clamping ring and the body part.

Inventors

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Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 21:44
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/06; F16L47/08; F16L47/10; F16L17/00; F16L17/02; F16L17/025

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 297 words
A pipe connection comprising a penetrating pipe part and a receiving pipe part, the latter being provided with a cylindrical widened end, the axial end of the cylindrical widened end cooperating clampingly with a retaining ring of generally Jshaped longitudinal cross-section, the part of the ring, which extends in the direction of the inner side of the receiving pipe part ending at a short distance from the free end of said receiving pipe part, the inner diameter of the retaining ring being substantially equal tO the inner diameter of the receiving pipe part, and a sealing ring having a sealing body part clamped between the bottom of the retaining ring and the axial end of the receiving pipe part, said sealing ring further including a portion which is connected with the sealing body part and which contacts at least partially the inner side of the widened end of the receiving pipe part and the outer side of the penetrating pipe part, wherein the sealing body only cooperates partially with the bottom of the retaining ring and cooperates resiliently with the axial end of the receiving pipe part, said pipe connection including means for absorbing shock as a result of impact thereto, said means for absorbing shock comprising the sealing body part, the retaining ring provided with hollows and elevations which cooperate with corresponding hollows and elevations provided on the radial outer surface of the receiving pipe part, such that when said retaining ring and receiving pipe part are coupled together spaces remain between engaging hollows and elevations to permit displacement of said retaining ring relative to said receiving pipe part thereby compressing said sealing body part without damaging said respective hollows and elevations when said pipe connection is subjected to impact by being dropped or the like.
Claim 2
Dependent Claim 297 words
A pipe connection comprising a penetrating pipe part and a receiving pipe part, the latter being provided with a cylindrical widened end, the axial end of the cylindrical widened end cooperating clampingly with a retaining ring of generally Jshaped longitudinal cross-section, the part of the ring, which extends in the direction of the inner side of the receiving pipe part ending at a short distance from the free end of said receiving pipe part, the inner diameter of the retaining ring being substantially equal tO the inner diameter of the receiving pipe part, and a sealing ring having a sealing body part clamped between the bottom of the retaining ring and the axial end of the receiving pipe part, said sealing ring further including a portion which is connected with the sealing body part and which contacts at least partially the inner side of the widened end of the receiving pipe part and the outer side of the penetrating pipe part, wherein the sealing body only cooperates partially with the bottom of the retaining ring and cooperates resiliently with the axial end of the receiving pipe part, said pipe connection including means for absorbing shock as a result of impact thereto, said means for absorbing shock comprising the sealing body part, the retaining ring provided with hollows and elevations which cooperate with corresponding hollows and elevations provided on the radial outer surface of the receiving pipe part, such that when said retaining ring and receiving pipe part are coupled together spaces remain between engaging hollows and elevations to permit displacement of said retaining ring relative to said receiving pipe part thereby compressing said sealing body part without damaging said respective hollows and elevations when said pipe connection is subjected to impact by being dropped or the like.
Claim 3
Dependent Claim 42 words
A pipe connection according to claim 1, wherein the sealing body part includes two protruding ribs which cooperate with the bottom, while the part of the sealing body, which is situated between these two ribs ends at some distance from the bottom.
Claim 4
Dependent Claim 40 words
A pipe connection according to claim 1, wherein the pipe receiving part terminates at a beveled edge at its widened end, and the surface of the sealing body part is provided with leakage-preventing ribs which cooperate with said beveled edge.
Claim 5
Dependent Claim 18 words
A pipe connection according to claim 1, wherein part of the sealing is provided with sawtooth shaped ribs.
Claim 6
Dependent Claim 18 words
A pipe connection according to claim 1, wherein the retaining ring is made of polyolefinic material preferably polypropylene.
Claim 7
Dependent Claim 16 words
A pipe connection according to claim 1, wherein the pipe parts are made of thermoplastic material.
Claim 8
Dependent Claim 44 words
A pipe connection according to claim 1, wherein the inner wall of the retaining ring part tapers towards the connecting part of the retaining ring and the wall of the sealing body part, cooperating with the said inner wall, tapers in the same way.
Claim 9
Dependent Claim 115 words
The connector and sealing device of claim 1 wherein said resilient body comprises protrusions adapted to circumferentially contact the inner surface of said retaining ring and the receiving pipe enlarged end portion for sealing said outer threads when in use, and a generally elongated portion extending into said cavity formed in said receiving pipe enlarged end portion, said elongated portion having a thickness which, when placed in abutting relationship to said receiving pipe enlarged end portion, forms a passageway having a diameter substantially equal to the diameter of the non-enlarged portion of said receiving pipe, said elongated portion of said sealing body including protrusions for fluid sealing a second pipe positioned within said receiving pipe.

References Cited (Backward Citations)

US2443145A Cited
BE571139A Cited
US2937891A Cited
NL281193A Cited
FR1362532A Cited
US3645547A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-30 1978-07-01 1978-12-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-30 1982-07-01 1982-12-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-30 1986-07-01 1986-12-31 $7700.00 Window Closed / Lapsed

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