Patent US3704901A successfully refreshed from Google Patents.
US3704901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe joint connector
Assignee: Messer Griesheim GmbH
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Filing: 1971-02-16
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Granted: 1972-12-05
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Expires: 1991-02-16
Abstract
Abstract Pipes of varying material are connected together by a connection wherein a ring on one pipe extends beyond a collar on the other pipe with a slot created between the ring and the other pipe. An intermediate ring, preferably of the same or similar material as the outer ring, is slipped into the slot.
Inventors
- 👤 Fritz Borner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:29
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/007
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A pipe joint connector adapted for connecting pipes made of different materials wherein the end of the first pipe has an enlarged collar formed thereon, the end of the second pipe being widened outward to form a jacket, which is connected to the collar by a press fit; characterized in that said jacket extending longitudinally beyond said collar and being spaced from said first pipe to form an annular slot therebetween, an intermediate ring being inserted in said slot and fixed to said jacket, said ring being in abutting engagement with said collar, said collar having a frontal surface, said jacket having an internal ring shaped area juxtaposed said frontal surface, and sealing prongs connecting said frontal surface to said ring shaped area.
Claim 2
Dependent Claim
123 words
A pipe joint connector adapted for connecting pipes made of different materials wherein the end of the first pipe has an enlarged collar formed thereon, the end of the second pipe being widened outward to form a jacket, which is connected to the collar by a press fit; characterized in that said jacket extending longitudinally beyond said collar and being spaced from said first pipe to form an annular slot therebetween, an intermediate ring being inserted in said slot and fixed to said jacket, said ring being in abutting engagement with said collar, said collar having a frontal surface, said jacket having an internal ring shaped area juxtaposed said frontal surface, and sealing prongs connecting said frontal surface to said ring shaped area.
Claim 3
Dependent Claim
20 words
The pipe joint connector of claim 1 wherein the end of said jacket and said intermediate ring are welded together.
Claim 4
Dependent Claim
29 words
The pipe joint connector of claim 2 wherein the inside diameter of said jacket is greater in the area of said slot than in the area of said collar.
Claim 5
Dependent Claim
35 words
The pipe joint connector of claim 3 wherein said collar has a rear surface juxtaposed the end of said intermediate ring, and sealing prongs connecting said rear surface to the end of said intermediate ring.
Claim 6
Dependent Claim
29 words
The pipe joint connector of claim 1 wherein the inside diameter of said jacket is greater in the area of said slot than in the area of said collar.
Claim 7
Dependent Claim
35 words
The pipe joint connector of claim 5 wherein said collar has a rear surface juxtaposed the end of said intermediate ring, and sealing prongs connecting said rear surface to the end of said intermediate ring.
Claim 8
Dependent Claim
35 words
The pipe joint connector of claim 2 wherein said collar has a rear surface juxtaposed the end of said intermediate ring, and sealing prongs connecting said rear surface to the end of said intermediate ring.
Claim 9
Dependent Claim
35 words
The pipe joint connector of claim 1 wherein said collar has a rear surface juxtaposed the end of said intermediate ring, and sealing prongs connecting said rear surface to the end of said intermediate ring.
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |