US3739073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Termination for electric cable and fluid filled cable conduit
Assignee: General Electric Co
•
Filing: 1972-05-05
•
Granted: 1973-06-12
•
Expires: 1992-05-05
Abstract
Abstract An electric cable emerging from a liquid-filled chamber under pressure, such as a deep well casing, is led through a high pressure hose or other conduit to a self sealing terminator in which the conduit and cable sheathing is terminated and from which the cable conductors alone emerge. The terminator comprises a tubular shell having a sealed tubular piston therein and a closure cap at its outlet end. The pressure hose is connected to the incoming end of the terminator shell and the cable is led into and through the piston. All cable sheathing and armor is terminated at the piston and the cable conductors continue through the closure cap. A body of resilient sealing material between the piston and closure cap is compressed by fluid pressure on the piston to seal against the cable conductors.
Inventors
- 👤 H Schneider
- 👤 J Wittle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:41
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/306; H02; H02G; H02G15/00; H02G15/02; H02G15/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
134 words
Terminal apparatus for a pressurized fluid conduit and an enclosed electric cable having a fluid impervious insulating jacket which comprises, a tubular shell enclosing said cable and having an incoming end coupled to said conduit, an apertured closure cap in the opposite outgoing end of said shell, said cable jacket being terminated within said shell and said cable including an insulated conductor passing out of said shell through said closure cap, a tubular piston slidably mounted in said shell and embracing the terminal end of said cable jacket in sealed relation, and a body of resilient insulating material filling said shell between said piston and said closure cap and surrounding said insulated conductor whereby fluid pressure on the incoming side of said piston increases sealing pressure of said resilient body against said insulated conductor.
Claim 2
Dependent Claim
134 words
Terminal apparatus for a pressurized fluid conduit and an enclosed electric cable having a fluid impervious insulating jacket which comprises, a tubular shell enclosing said cable and having an incoming end coupled to said conduit, an apertured closure cap in the opposite outgoing end of said shell, said cable jacket being terminated within said shell and said cable including an insulated conductor passing out of said shell through said closure cap, a tubular piston slidably mounted in said shell and embracing the terminal end of said cable jacket in sealed relation, and a body of resilient insulating material filling said shell between said piston and said closure cap and surrounding said insulated conductor whereby fluid pressure on the incoming side of said piston increases sealing pressure of said resilient body against said insulated conductor.
Claim 3
Dependent Claim
19 words
Terminal apparatus according to claim 1 which includes also a sealing ring interposed between said piston and said shell.
Claim 4
Dependent Claim
36 words
Terminal apparatus according to claim 1 for an electric cable having an external metallic armor sheath in which said piston is mechanically connected at its incoming side to a terminal end of said metallic armor sheath.
Claim 5
Dependent Claim
86 words
Terminal apparatus according to claim 1 wherein said tubular piston is axially flared outwardly at opposite ends to form oppositely directed mouths with a narrow throat therebetween, said insulating cable jacket traverses the piston mouth facing the incoming end of said shell and passes through said throat, and resilient sealing means is positioned within the piston mouth at said incoming end, whereby pressurized fluid in said conduit acts to compress said sealing means within said piston mouth at the incoming end and against said cable jacket.
Claim 6
Dependent Claim
37 words
Terminal apparatus according to claim 4 wherein said tubular piston comprises a head portion including said oppositely directed mouths and an annular base ring bolted to said head portion and engaging said sealing means in axial compression.
Claim 7
Dependent Claim
81 words
Terminal apparatus according to claim 1 wherein said tubular piston is axially flared outwardly at opposite ends to form oppositely directed mouths with a narrow throat therebetween, said insulating cable jacket traverses said throat and terminates in the piston mouth facing the outgoing end of said shell, and said body of resilient insulating material fills said piston mouth facing the outgoing end and is compressed by said mouth facing the outgoing end radially against said cable jacket and said insulated conductor.
Claim 8
Dependent Claim
76 words
Terminal apparatus according to claim 6 wherein said apertured closure cap is formed to provide a flared mouth facing the piston mouth at the outgoing end of said shell, a plug of rigid insulating material lies within said flared mouth oF said closure cap, said plug being axially apertured to permit passage of said insulated conductor, and said body of resilient insulating material is compressed between said insulating plug and the opposing mouth of said piston.
Claim 9
Dependent Claim
54 words
Terminal apparatus according to claim 7 wherein said plug of rigid insulating material provides a flared mouth surrounding said insulated conductor and facing the piston mouth at the outgoing end of said shell, said body of resilient insulating material being compressed within and between the opposing mouths of said piston and said insulating plug.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |