VIBRATION-RESISTING POINTER SF6 GAS DENSITY RELAY

WIPO Patent Application WO/2008/064554

A1

A vibration-resisting pointer SF6 gas density relay comprises a base (19), a girder (16), at least one adjusting bar (141, 142, 143), micro-switches (91, 92, 93) provided in pair corresponding to the adjusting bar (141, 142, 143) , operating arms (911', 921', 931') mounted on each micro-switch(91, 92, 93) separately. The relay also comprises an enhancing mechanism (23) for enhancing the micro-switches (91, 92, 93), i.e. an enhancing mechanism (23) for enhancing the house of the micro-switches (91, 92, 93), or an enhancing mechanism (23) for enhancing the housing of the micro-switches (91, 92, 93) and for limiting the position of the operating arms (911', 921', 931') of the micro-switches at the same time, or an enhancing mechanism (23) for enhancing the house of the micro-switches (91, 92, 93) and for limiting the position of the operating arms (911', 921', 931') and the adjusting bars (141, 142, 143) of the micro-switch at the same time. The enhancing mechanism is fixed in the house and comprises at least one reinforcer fastened on the side of the house of the predetermined micro-switch. Each of the micro-switches and the base are on the two sides of the girder separately. Each of the micro-switches is above the corresponding adjusting bar.

JPS5494675

PRESSURE SWITCH

SU LIFANG (CN)

PCT/CN2007/003192

June 05, 2008

November 12, 2007

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SHANGHAI ROYE ELECTRIC SCIENCE (CN)
SU LIFANG (CN)

H01H35/36; H01H35/24

CN2679825Y	2005-02-16
US4057699A	1977-11-08
JPH03265410A	1991-11-26

SANHE INTERNATIONAL IP ATTORNEYS (4299 Jindu Road, Shanghai 8, CN)

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