Patent US3632141A successfully refreshed from Google Patents.
US3632141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for joining a sleeve with a tube
Assignee: AGA PLATFOERAEDLING AB
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Filing: 1969-09-19
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Granted: 1972-01-04
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Expires: 1989-09-19
Abstract
Abstract A tubular joint having a sleeve formed tightly onto a tube by compression of the latter onto the former. The joint includes, in order from the inside of the tube outwardly, a support section for guiding the inner end of the tube, a sealing ring and an outer support section located adjacent the sealing ring. Either one of or both of the support sections may be integral with the sleeve or formed as a ring located between the tube and the sleeve. After assembly of all elements, the sleeve is compressed onto the tube to form the permanent joint.
Inventors
- 👤 Gunnar Larsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:19
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/141; F16L13/142
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
177 words
An arrangement for sealingly joining a sleeve to a tube comprising: a sleeve sufficiently thin to be compressed against a tube, a tube having an inner end located in the sleeve, inner support means for supporting the inner end of the tube relative to the sleeve and for forming a permanent joint between the sleeve and the tube upon radial compression of the sleeve toward the tube, a sealing ring located radially between the sleeve and the tube and located axially between the support means and the outer end of the sleeve, and an outer support means, located axially between the sealing ring and the outer end of the tube, for supporting the tube and for forming a permanent joint between the sleeve and the tube upon radial compression of the sleeve toward the tube, at least one of said support means comprising a hard separate clutch ring located between the sleeve and the tube for guiding the tube into the sleeve and for assisting in the formation of the final joint after the said radial compression.
Claim 2
Dependent Claim
177 words
An arrangement for sealingly joining a sleeve to a tube comprising: a sleeve sufficiently thin to be compressed against a tube, a tube having an inner end located in the sleeve, inner support means for supporting the inner end of the tube relative to the sleeve and for forming a permanent joint between the sleeve and the tube upon radial compression of the sleeve toward the tube, a sealing ring located radially between the sleeve and the tube and located axially between the support means and the outer end of the sleeve, and an outer support means, located axially between the sealing ring and the outer end of the tube, for supporting the tube and for forming a permanent joint between the sleeve and the tube upon radial compression of the sleeve toward the tube, at least one of said support means comprising a hard separate clutch ring located between the sleeve and the tube for guiding the tube into the sleeve and for assisting in the formation of the final joint after the said radial compression.
Claim 3
Dependent Claim
46 words
An arrangement according to claim 1 wherein said sealing ring and said outer support means are sufficiently close to each other axially such that upon said radial compression of the sleeve deformation of the sealing ring is at least partially limited by said outer support means.
Claim 4
Dependent Claim
43 words
An arrangement according to claim 1, wherein the inner support means is a clutch ring and the outer support means is constituted by the outer end of the sleeve, bent in to penetrate into the tube upon said radial compression of the tube.
Claim 5
Dependent Claim
57 words
An arrangement according to claim 1, wherein the outer support means comprises a hard clutch ring located radially between the sleeve and the tube and located axially between the sealing ring and the outer end of the sleeve, whereby upon said radial compression of the sleeve, the clutch ring penetrates the tube to form said outer joint.
Claim 6
Dependent Claim
50 words
An arrangement according to claim 4, including a plurality of said clutch rings located between the said outer end of the sleeve and the inner support means, and including a sealing ring located axially adjacent each clutch ring on the side thereof towards the said inner end of the tube.
Claim 7
Dependent Claim
15 words
An arrangement according to claim 1, wherein said clutch ring has a rectangular cross section.
Claim 8
Dependent Claim
15 words
An arrangement according to claim 1, wherein said clutch ring has a trapezoidal cross section.
Claim 9
Dependent Claim
19 words
An arrangement according to claim 1, wherein said clutch ring is oblique relative to the axis of the tube.
Claim 10
Dependent Claim
13 words
An arrangement according to claim 8, wherein said clutch ring comprises a helix.
Claim 11
Dependent Claim
23 words
An arrangement according to claim 1 wherein said clutch ring includes holding means for preventing rotational movement between the sleeve and the tube.
Claim 12
Dependent Claim
20 words
An arrangement according to claim 10, said holding means comprising a rough surface on the exterior of the clutch ring.
Claim 13
Dependent Claim
17 words
An arrangement according to claim 10, said holding means constituted by axial undulations on the clutch ring.
Claim 14
Dependent Claim
14 words
An arrangement according to claim 10, said holding means having radially extending projections thereon.
Claim 15
Dependent Claim
43 words
An arrangement according to claim 1, wherein the sleeve has a smooth inner surface beyond the inner support means in the axial direction, the diameter of said surface being at least as large as the outer diameter of the clutch ring provided therein.
Claim 16
Dependent Claim
65 words
An arrangement according to claim 1, including a stop ring located in the sleeve and having an inner diameter smaller than the outer diameter of the tube for limiting inward movement of the tube in the sleeve, and the said sleeve having a smooth inner surface with a diameter at least as large as the exterior diameter of the stop ring and the clutch ring.
Claim 17
Dependent Claim
24 words
An arrangement according to claim 1, including grooves formed in the interior of the sleeve, said clutch ring arranged to fit into said groove.
Claim 18
Dependent Claim
22 words
An arrangement according to claim 1, including a stop means for limiting the inward movement of the tube relative to the sleeve.
Claim 19
Dependent Claim
29 words
An arrangement according to claim 17, said stop means comprising a stop ring in the sleeve and having an inner diameter smaller than the outer diameter of the tube.
Claim 20
Dependent Claim
36 words
An arrangement according to claim 17, said stop means comprising a stop portion integral with the sleeve and extending radially inwardly therefrom to prevent axial movement of the tube into the sleeve past the stop portions.
Claim 21
Dependent Claim
15 words
An arrangement according to claim 1, wherein said inner support means comprises said clutch ring.
Claim 22
Dependent Claim
33 words
An arrangement according to claim 1, said inner support means comprising a portion integral with the sleeve and positioned adjacent the outside of the inner end of the tube to support the same.
Claim 23
Dependent Claim
31 words
An arrangement according to claim 21 wherein said outer support means comprises the said clutch ring and is located axially between the sealing ring and the outer end of the sleeve.
Claim 24
Dependent Claim
40 words
An arrangement according to claim 21, said inner support further hard clutch ring positioned axially between said inner support means and said sealing ring, said second clutch ring also arranged to guide and support the inner end of the tube.
Claim 25
Dependent Claim
44 words
An arrangement according to claim 1, for joining a pair of tubes, the inner and outer support means being arranged such that the portion of the sleeve over one tube is the mirror image of the portion of the sleeve over the other tube.
Claim 26
Dependent Claim
43 words
An arrangement according to claim 24, holding a stop means comprising a stop portion integral with the sleeve and extending radially inwardly therefrom between the two said tubes to prevent axial movement of the two said tubes towards each other in the sleeve.
Claim 27
Dependent Claim
37 words
An arrangement according to claim 25, wherein said inner support means comprises a portion integral with the sleeve and formed against the outside of the inner end of the said tubes to support the two said tubes.
Claim 28
Dependent Claim
36 words
An arrangement according to claim 24 wherein said inner support means comprises a portion integral with the sleeve and positioned adjacent the outside of the inner end of the tubes to support the two said tubes.
Claim 29
Dependent Claim
65 words
An arrangement for sealing and joining a sleeve to a tube according to claim 1, wherein each of the inNer and outer support means comprises clutch rings, positioned one on each side of the sealing ring, whereby both are positioned to guide the tube onto the sleeve and then to assist in forming the permanent joint when the sleeve is compressed radially against the tube.
Claim 30
Dependent Claim
46 words
An arrangement according to claim 28, wherein said sealing ring and said outer support means are sufficiently close to each other axially such that upon said radial compression of the sleeve, deformation of the sealing ring is at least partially limited by said outer support means.
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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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |