US3689112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing connection having means for distributing axially applied pulling forces
Assignee: Bowen Tools Inc
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Filing: 1970-10-27
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Granted: 1972-09-05
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Expires: 1990-10-27
Abstract
Abstract Tubing connection and method of making same, wherein an end of a tube or tubing is joined to a connector by annular crimped portions or indentations at longitudinally spaced areas, forming a beam therebetween, and engaged with the connector for distributing longitudinal pulling forces on the tube to both of the areas of the crimped portions. The ends of two tubes are preferably similarly joined to a common connector.
Inventors
- 👤 Damon T Slator
- 👤 Thomas R Bishop
- 👤 Archie W Peil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:39
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/141; F16L13/143; B; B21; B21D; B21D39/00; B21D39/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/53; Y10T29/5367
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
188 words
A tubing connection between an end of a tubing section and a connector, comprising: a connector having an inner end and an outer end and a first annular recess and a second annular recess disposed between said ends and formed in its external surface in longitudinally spaced relationship to each other; a length of metallic tubing having a bore in which said inner end of said connector and said recesses thereon are positioned; a pair of longitudinally spaced permanently deformed annular crimps in said tubing aligned with and extending into said recesses; and said first recess being disposed nearer the inner end of said connector than said second recess and each of said recesses having an inner shoulder, with the inner shoulder on said first recess being formed with a slope which is at a smaller angle to the axis of The connector than the inner shoulder in said second recess, said crimps engaging said shoulders whereby longitudinal pulling on said tubing relative to said connector results in the pulling forces being substantially uniformly distributed to the areas of contact between both of said crimps and said connector.
Claim 2
Dependent Claim
188 words
A tubing connection between an end of a tubing section and a connector, comprising: a connector having an inner end and an outer end and a first annular recess and a second annular recess disposed between said ends and formed in its external surface in longitudinally spaced relationship to each other; a length of metallic tubing having a bore in which said inner end of said connector and said recesses thereon are positioned; a pair of longitudinally spaced permanently deformed annular crimps in said tubing aligned with and extending into said recesses; and said first recess being disposed nearer the inner end of said connector than said second recess and each of said recesses having an inner shoulder, with the inner shoulder on said first recess being formed with a slope which is at a smaller angle to the axis of The connector than the inner shoulder in said second recess, said crimps engaging said shoulders whereby longitudinal pulling on said tubing relative to said connector results in the pulling forces being substantially uniformly distributed to the areas of contact between both of said crimps and said connector.
Claim 3
Dependent Claim
53 words
The structure set forth in claim 1, wherein: said first recess has a greater longitudinal width than the width of the crimp extending therein to form a resilient beam between the crimps to facilitate the distribution of the pulling load to the areas of contact between both of said crimps and the connector.
Claim 4
Dependent Claim
25 words
The structure set forth in claim 2, wherein: the wall of the tubing is thicker at the crimp extending into said first recess than elsewhere.
Claim 5
Dependent Claim
36 words
The structure set forth in claim 1, including: said connector having an annular seal ring groove; and a resilient seal ring disposed in said groove and forming a fluid-tight seal between said connector and said tubing.
Claim 6
Dependent Claim
90 words
The structure set forth in claim 1, wherein: said connector has substantial duplicates of said first and second recesses over which the end of a second tubing section is disposed; and a pair of longitudinally spaced annular crimps in said second tubing aligned with and extending into said substantial duplicates of said first and second recesses, with the shoulders thereof also being constructed in the same manner to distribute pulling forces on said second tubing to the areas of contact between said crimps in said second tubing and said connector.
Claim 7
Dependent Claim
41 words
The structure set forth in claim 5, wherein: said connector has an intermediate guide groove section having an external diameter which is approximately the same as the external diameter of said tubing, and which has an annular guide groove formed therein.
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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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |