Patent US923983A successfully refreshed from Google Patents.
Patent US3753287A successfully refreshed from Google Patents.
US3753287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of interconnecting two coaxial tube systems
Assignee: KM Kabelmetal AG
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Filing: 1971-09-15
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Granted: 1973-08-21
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Expires: 1991-09-15
Abstract
Abstract Method of interconnecting two coaxial tube systems, each having at least two corrugated coaxial tubes, by providing innermost tubes of the two systems to be interconnected and at slightly smaller or larger diameter, respectively in or on the end portions of the said two innermost tubes in corrugation contour matching and fitting relation; bonding the axial ends of the first sleeve or of the two innermost tubes respectively to the two innermost tubes or both first sleeves; telescoping a second sleeve of slightly smaller or larger diameter than the next, outer tubes of each system in corrugation receiving relation to the axially displaced ends of the outer tubes, bonding the second sleeve to the outer tubes.
Inventors
- 👤 G Ziemek
- 👤 F Schatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:22
CPC Classifications
H; H01; H01R; H01R9/00; H01R9/03; H01R9/05; H01R9/0503; F; F16; F16L; F16L39/00; F16L39/005; F16L59/00; F16L59/08; Y; Y10; Y10S; Y10S285/00; Y10S285/903
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
280 words
Method of interconnecting two coaxial tube systems, each having at least two corrugated coaxial tubes comprising the steps of: providing a first sleeve having similar corrugation as the respective innermost tubes of the two systems to be interconnected and at slightly differing diameter than either of said innermost tubes placing the two axial ends of the first sleeve respectively adjacent to the end portions of the said two innermost tubes and in concentric, axially overlapping as well as in corrugation matching, receiving and fitting relation thereto and for a certain span on each axial end of the first sleeve, so that the ends of the innermost tubes on one hand, and the ends of the first sleeve on the other hand are placed into each other in telescoping relationship to obtain innermost assembled tubing constituted by said first sleeve and by said innermost tubes, and having a phase coherent wave pattern in axial cross section as to their corrugation, said first sleeve and said two innermost tubes together having four axial ends, said innermost tubing when assembled having only two of said axial ends outwardly exposed while being radially aligned with wall portions of that part of the innermost tubing having the other two axial ends; bonding said axial end faces to the said wall portions of the innermost tubing having said other two axial end faces; disposing a second sleeve of slightly different diameter than the next, outer tubes of each system in corrugation receiving relation to the axially displaced ends of the outer tubes and in telescoping relation therewith respectively adjacent the two axial ends of the second sleeve; and bonding the second sleeve to the outer tubes.
Claim 2
Dependent Claim
280 words
Method of interconnecting two coaxial tube systems, each having at least two corrugated coaxial tubes comprising the steps of: providing a first sleeve having similar corrugation as the respective innermost tubes of the two systems to be interconnected and at slightly differing diameter than either of said innermost tubes placing the two axial ends of the first sleeve respectively adjacent to the end portions of the said two innermost tubes and in concentric, axially overlapping as well as in corrugation matching, receiving and fitting relation thereto and for a certain span on each axial end of the first sleeve, so that the ends of the innermost tubes on one hand, and the ends of the first sleeve on the other hand are placed into each other in telescoping relationship to obtain innermost assembled tubing constituted by said first sleeve and by said innermost tubes, and having a phase coherent wave pattern in axial cross section as to their corrugation, said first sleeve and said two innermost tubes together having four axial ends, said innermost tubing when assembled having only two of said axial ends outwardly exposed while being radially aligned with wall portions of that part of the innermost tubing having the other two axial ends; bonding said axial end faces to the said wall portions of the innermost tubing having said other two axial end faces; disposing a second sleeve of slightly different diameter than the next, outer tubes of each system in corrugation receiving relation to the axially displaced ends of the outer tubes and in telescoping relation therewith respectively adjacent the two axial ends of the second sleeve; and bonding the second sleeve to the outer tubes.
Claim 3
Dependent Claim
63 words
Method as in claim 1, wherein at least two respective tubes of the two systems to be interconnected as well as the respective sleeves are helically corrugated, for the sleeve to be threaded first onto one of the two tubes, and subsequently partially unscrewing the sleeve therefrom again while threading the other end of the sleeve into or onto the respective other tube.
Claim 4
Dependent Claim
41 words
Method as in claim 2, wherein the sleeve is threaded into the two tubes, there remaining a gap between the two tubes, covered from the interior by the sleeve, and including the step of filling the gap with electrically conductive material.
Claim 5
Dependent Claim
59 words
Method as in claim 1, wherein at least two respective tubes of the two systems to be interconnected have circular corrugation, the respective sleeve originally made of two or more axially divided parts, each placed in corrugation contour fitting relation to the ends of the two tubes, aNd axially welding the parts to combine them for providing the sleeve.
Claim 6
Dependent Claim
35 words
Method as in claim 1, preceded by the step of preparing the two systems so that in at least one end of the innermost tube projects axially beyond the end of the next outer tube.
Claim 7
Dependent Claim
61 words
Method as in claim 1, wherein at least two respective tubes of the two systems to be interconnected as well as the respective sleeves are helically corrugated, for the sleeve to be threaded first into one of the two tubes, and subsequently partially unscrewing the sleeve there-from again while threading the other end of the sleeve onto the respective other tube.
Claim 8
Dependent Claim
61 words
Method as in claim 1, wherein the first sleeve has slightly smaller diameter than the diameter of the two innermost tubes, causing the first sleeve to be received adjacent opposite axial ends respectively by the two innermost tubes, said first mentioned bonding step established by bonding the axial ends of the two innermost tubes to the wall of the first sleeve.
Claim 9
Dependent Claim
66 words
Method as in claim 1, wherein the first sleeve has slightly larger diameter than the diameters of the two innermost tubes, the telescoping including causing the ends of the two innermost tubes respectively to be received at opposite axial ends of the sleeve, said first mentioned bonding step established by bonding the axial ends of the sleeve respectively to the walls of the two innermost tubes.
Claim 10
Dependent Claim
59 words
Method as in claim 1, wherein at least two respective tubes of the two systems to be interconnected have circular corrugation, the respective sleeve originally made of two or more axially divided parts, each placed in corrugation contour fitting relation to the ends of the two tubes, and axially soldering the parts to combine them for providing the sleeve.
Claim 11
Dependent Claim
33 words
Method as in claim 1, wherein the first sleeve axially overlays with respect to said two tubes for more than one corrugation wavelength in axial direction on each end of the first sleeve.
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |