[특허]Gas pressurized cable and conduit system

[미국특허] Gas pressurized cable and conduit system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01B-009/06
출원번호	US-0366172 (1982-04-07)
발명자 / 주소	Pugh Paul F. (33112 Globe Dr. Porterville CA 93257) Pugh Jr. Paul (33112 Globe Dr. Porterville CA 93257)
인용정보	피인용 횟수 : 30 인용 특허 : 1

초록 ▼

A way to evacuate all moisture and air and then pressurize with SF6 gas, a cable and conduit system used for electrical power distribution and transmission lines, by fabricating a termination at each end. A termination is made up of a first end plate with a hole slightly larger than the conduit and sealed around the hole to the conduit. For a single phase cable, one electrical terminal is sealed as it goes through the first end plate and is connected to the neutral conductor. A second electrical terminal is sealed as it goes through a second end plate and is connected to the conductor. An enlarged conduit is spaced between these two end plates and is sealed to, the two end plates. A tire valve is installed in one end plate. A hole to fit a pipe nipple is made at the top of the enlarged conduit of one termination. A vacuum pump is connected to a pipe nipple screwed into the hole and the termination evacuated. SF6 gas is then let in through the tire valve until a pressure of 1 psig is reached, then shut off. The vacuum pump and nipple are removed, then a patch is sealed over the hole. SF6 gas is now let in to pressurize at 20-80 psig. Various numbers, sizes and kinds of conductors can be used in a conduit to make various kinds of high voltage power cables.

대표청구항 ▼

A pressurized electric power cable and conduit system comprising: a power cable comprising: a central conductor (1); and a neutral conductor (5); an insulating conduit (6) over said cable with a portion of said cable extending beyond both ends of said insulating conduit for a termination; a termination attached to at least one end of said insulating conduit with said termination comprising: a short length of an enlarged insulating conduit (32); a first conduit end plate (8) sealed to one end of said enlarged insulating conduit, said first plate having a first hole (9) slightly larger than said insulating conduit; a second conduit end plate (19) sealed to the other end of said enlarged insulating conduit and said second plate having a second hole (20) into which the end of a small insulating conduit (21) is inserted and sealed to said second plate, a seal (34) inserted within the small insulating conduit, and a clamp (35) over said small insulating conduit; a terminal (23) for attaching to said central conductor; a means (17) to bring said neutral conductor out of said termination; a means (36) through which said termination and said insulating conduit can be evacuated; a means (12) through which said termination and said insulating conduit can be pressurized; an insulating gas (7) within the said termination and said insulating conduit; at each end of said insulating conduit said cable extending through said first hole in said first end plate into said termination, the end of said insulating conduit sealed at (18) at the said hole of said first plate; said terminal attached to the end of said central conductor and inserted inside said seal (34), said clamp (35) arranged to form a seal around said terminal, and said neutral conductor attached to a means to bring said neutral conductor out of said termination.

이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

Pugh Paul F. (4082 Sequoyah Rd. Oakland CA 94605), Method for manufacturing SF₆ pressurized gas continuous spacer cable.
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이 특허를 인용한 특허 (30) 인용/피인용 타임라인 분석

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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Gas pressurized cable and conduit system 원문보기