US3629487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressurized multistrand cable air bypass and testing device
Assignee: Hexcel Corp
•
Filing: 1970-05-01
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Granted: 1971-12-21
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Expires: 1990-05-01
Abstract
Abstract Sections of relatively soft, resilient tubes are inserted through a gas barrier into the pressurized portion of multistrand cables. The free ends of the tubes are connected to a selfclosing valve communicating the tube interior with the exterior. The tube lengths are sufficient so that each tube length can be pinched off to temporarily interrupt the fluid communication between the corresponding pressurized cable and the valve and thus permit the independent testing of the pressure medium in the other one of the pressurized cables.
Inventors
- 👤 Phillip W Cuthbert
- 👤 William R Neail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:32
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/20; H02G15/26; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
137 words
A pressurized fluid bypass for providing fluid communication between adjoining, pressurized, multistrand cable ends, the strands extending through a gastight barrier on the cables preventing the escape of pressurized fluid from the cables, the bypass comprising: a conduit extending through the gastight barriers into the pressurized cable portions for fluidly communicating the pressurized portions, the conduit being constructed of a relatively soft, resilient material, valve means disposed intermediate the barriers for communicating the conduit interior to the atmosphere for providing access to the conduit interior and the pressurized medium, the conduit having a sufficient length to permit it to be pinched off to isolate the valve means from one of the pressurized cable portions and thereby enable independent access to the other one of the pressurized cable portions and the pressurized fluid therein via the valve means.
Claim 2
Dependent Claim
137 words
A pressurized fluid bypass for providing fluid communication between adjoining, pressurized, multistrand cable ends, the strands extending through a gastight barrier on the cables preventing the escape of pressurized fluid from the cables, the bypass comprising: a conduit extending through the gastight barriers into the pressurized cable portions for fluidly communicating the pressurized portions, the conduit being constructed of a relatively soft, resilient material, valve means disposed intermediate the barriers for communicating the conduit interior to the atmosphere for providing access to the conduit interior and the pressurized medium, the conduit having a sufficient length to permit it to be pinched off to isolate the valve means from one of the pressurized cable portions and thereby enable independent access to the other one of the pressurized cable portions and the pressurized fluid therein via the valve means.
Claim 3
Dependent Claim
15 words
A bypass according to claim 1 wherein the valve means comprises a normally closed valve.
Claim 4
Dependent Claim
31 words
A bypass according to claim 1 wherein the valve means is spaced from the barriers by conduit sections, each section being of sufficient length to enable it to be pinched off.
Claim 5
Dependent Claim
18 words
A bypass according to claim 1 wherein the valve means comprises a single valve communicating with the conduit.
Claim 6
Dependent Claim
118 words
Apparatus for fluidly interconnecting sealed, pressurized portions of multistrand cables comprising: first and second branch lines, each line having an end thereof in fluid communication with the pressurized portion of one cable, the lines extending beyond the pressurized portions, means fluidly connecting and sealing the other ends of the branch lines, the means including a conduit to the atmosphere and valve means for closing the conduit to provide access to the pressurized medium, the lines being constructed of a flexible, resilient material and each line having a sufficient length permitting it to be flexibly bent over itself to temporarily close it off and thereby provide access to one or the other one of the pressurized cable portions only.
Claim 7
Dependent Claim
118 words
Apparatus for fluidly interconnecting sealed, pressurized portions of multistrand cables comprising: first and second branch lines, each line having an end thereof in fluid communication with the pressurized portion of one cable, the lines extending beyond the pressurized portions, means fluidly connecting and sealing the other ends of the branch lines, the means including a conduit to the atmosphere and valve means for closing the conduit to provide access to the pressurized medium, the lines being constructed of a flexible, resilient material and each line having a sufficient length permitting it to be flexibly bent over itself to temporarily close it off and thereby provide access to one or the other one of the pressurized cable portions only.
Claim 8
Dependent Claim
15 words
Apparatus according to claim 5 including means for bonding the line ends to the cables.
Claim 9
Independent Claim
91 words
A method of providing access to the pressure medium in pressurized multistrand cables interconnected by an elongate conduit constructed of a resiliently deformable, relatively soft material comprising the steps of opening a valve disposed between the pressurized caBles and communicating the interior of the conduit with the exterior thereof, pinching off a section of the conduit disposed between the valve and one of the pressurized cables to interrupt the fluid communication between such cable and the valve means to thereby provide access to the other one of the pressurized cables only.
Claim 10
Independent Claim
91 words
A method of providing access to the pressure medium in pressurized multistrand cables interconnected by an elongate conduit constructed of a resiliently deformable, relatively soft material comprising the steps of opening a valve disposed between the pressurized caBles and communicating the interior of the conduit with the exterior thereof, pinching off a section of the conduit disposed between the valve and one of the pressurized cables to interrupt the fluid communication between such cable and the valve means to thereby provide access to the other one of the pressurized cables only.
Claim 11
Dependent Claim
42 words
A method according to claim 7 wherein the step of pinching off comprises the steps of doubling over itself a length of the section and compressing the doubled-over length of the section to thereby close that section and interrupt the fluid communication.
Claim 12
Dependent Claim
50 words
A method according to claim 8 including the step of maintaining the section in its doubled-over, compressed position while access to the pressurized cable only is required, and thereafter releasing the doubled-over section to reestablish communication between the cables by permitting the section to resiliently return to its original position.
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |