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US3772636A Expired / Lapsed US ⏱️ 0.0 years remaining

Connector

Assignee: BP PLC
•
Filing: 1972-01-17
•
Granted: 1973-11-13
•
Expires: 1992-01-17
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Abstract

Abstract An underwater connector for connecting electrical cables consists of a plug and socket. The connector operates when it is oil filled, the socket having a reservoir in its body filled with oil with the opening of the body facing down, there is a metal depression in the reservoir connected to one cable. The plug has a hollow body and a metal projection connected to the other cable which fits into the socket body. When the plug is inserted into the socket the oil in the socket reservoir is forced into the reservoir in the plug body and electrical contact between the plug and socket is made without any water coming in contact with the electrical contact in the socket.

Inventors

  • 👤 A Webb

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 16:24
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/523

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 271 words
An electrical connector suitable for underwater use comprising a plug and a socket for the plug, a. said socket having an internal sPace providing a reservoir for an electrically non-conductive liquid lighter than water, said reservoir being open at one end for insertion of said plug and being closed at the other end, there being at least one depression in said closed end, said depression containing an electrical contact member having provision for connection to an electrical cable, and b. said plug having at least one electrical contact member projecting from one end, said plug contact member having provision for connection to an electrical cable, and said plug also having an internal space providing a storage reservoir for liquid, a reduced diameter opening leading from one end of the plug reservoir to the exterior of the plug adjacent said projecting member and a second reduced diameter opening leading from the other end of the plug reservoir to the exterior of said plug at the corresponding end, said plug being of a configuration to enter and fill the socket reservoir, whereby, when the plug is inserted into the socket, the plug will force said electrically non-conductive liquid present in the socket reservoir through the opening adjacent the projecting member into the plug storage reservoir, and water present in the plug storage reservoir, will thereby be displaced and forced through the opening at the other end of the plug reservoir, out of the plug, and the electrical contact member projecting from the plug will fit into the depression in the socket and make electrical connection with the electrical contact piece in the depression.
Claim 2
Dependent Claim 271 words
An electrical connector suitable for underwater use comprising a plug and a socket for the plug, a. said socket having an internal sPace providing a reservoir for an electrically non-conductive liquid lighter than water, said reservoir being open at one end for insertion of said plug and being closed at the other end, there being at least one depression in said closed end, said depression containing an electrical contact member having provision for connection to an electrical cable, and b. said plug having at least one electrical contact member projecting from one end, said plug contact member having provision for connection to an electrical cable, and said plug also having an internal space providing a storage reservoir for liquid, a reduced diameter opening leading from one end of the plug reservoir to the exterior of the plug adjacent said projecting member and a second reduced diameter opening leading from the other end of the plug reservoir to the exterior of said plug at the corresponding end, said plug being of a configuration to enter and fill the socket reservoir, whereby, when the plug is inserted into the socket, the plug will force said electrically non-conductive liquid present in the socket reservoir through the opening adjacent the projecting member into the plug storage reservoir, and water present in the plug storage reservoir, will thereby be displaced and forced through the opening at the other end of the plug reservoir, out of the plug, and the electrical contact member projecting from the plug will fit into the depression in the socket and make electrical connection with the electrical contact piece in the depression.
Claim 3
Dependent Claim 20 words
An electrical connector as claimed in claim 1 in which the projecting member of the plug is made of metal.
Claim 4
Dependent Claim 14 words
An electrical connector as claimed in claim 2 in which the metal is copper.
Claim 5
Dependent Claim 21 words
An electrical connector as claimed in claim 1 in which the projecting member or members have a groove in their side.
Claim 6
Dependent Claim 14 words
An electrical connector as claimed in claim 2 in which the metal is brass.
Claim 7
Independent Claim 236 words
A method of reducing corrosion from electrolysis in the use of an electrical connector making an electrical connection under water between two electrical cables, the connector having a plug and a a socket for the plug, the socket having an internal space providing a reservoir for a liquid open at one end for insertion of the plug and closed at the other end and having a depression in the closed end containing an electrical contact member, and the plug being of a configuration to enter and fill the socket reservoir and having an electrical contact member projecting from one end for insertion in the depression in the socket and a reservoir for liquid open at both ends, one of said cables being connected to the electrical contact member of the plug and the other to the electrical contact member of the plug, which method comprises: holding the socket below the water surface with the open end facing downwards, thereafter filling the socket reservoir with a water immiscible electrically non-conductive liquid lighter than water and then, while maintaining the downward facing position of the socket, inserting the plug in the socket, whereby the liquid lighter than water is forced from the socket reservoir into the open-ended plug reservoir and water in the plug reservoir is displaced and forced out of the plug reservoir, and contact is made between the respective contact members in the plug and socket.
Claim 8
Independent Claim 236 words
A method of reducing corrosion from electrolysis in the use of an electrical connector making an electrical connection under water between two electrical cables, the connector having a plug and a a socket for the plug, the socket having an internal space providing a reservoir for a liquid open at one end for insertion of the plug and closed at the other end and having a depression in the closed end containing an electrical contact member, and the plug being of a configuration to enter and fill the socket reservoir and having an electrical contact member projecting from one end for insertion in the depression in the socket and a reservoir for liquid open at both ends, one of said cables being connected to the electrical contact member of the plug and the other to the electrical contact member of the plug, which method comprises: holding the socket below the water surface with the open end facing downwards, thereafter filling the socket reservoir with a water immiscible electrically non-conductive liquid lighter than water and then, while maintaining the downward facing position of the socket, inserting the plug in the socket, whereby the liquid lighter than water is forced from the socket reservoir into the open-ended plug reservoir and water in the plug reservoir is displaced and forced out of the plug reservoir, and contact is made between the respective contact members in the plug and socket.

References Cited (Backward Citations)

US2857557A Cited
DE1012351B Cited
DE1114876B Cited
US3158680A Cited
US3241095A Cited
US3324449A Cited
US3602873A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-11-12 1977-05-14 1977-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-11-12 1981-05-14 1981-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-11-12 1985-05-14 1985-11-13 $7700.00 Window Closed / Lapsed

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