Sealing member and submerged pump system

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12247575
APP PUB NO 20230204043A1
SERIAL NO

18068727

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A sealing member according to the present invention includes a head plate having a through hole and attached to an opening end of a pump column, a lift shaft penetrating the through hole and raised and lowered between a raised position and a lowered position in raising and lowering the pump, and a bellows member extending and contracting corresponding to the raising and lowering of the lift shaft. The bellows member includes a bellows tube covering an outer peripheral surface of a protruding portion of the lift shaft protruding upward from the head plate, a first attaching member disposed contiguously to an upper end of the bellows tube and attached to an upper end surface of the lift shaft, and a second attaching member disposed contiguously to a lower end of the bellows tube and attached to an upper surface of the head plate.

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First Claim

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Patent Owner(s)

  • NIKKISO CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eguchi, Masaaki Saitama, JP 28 244
Ogawa, Motoyasu Tokyo, JP 9 33
Tomita, Yasuo Tokyo, JP 28 196

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