Sluicing valve device

Details Sluicing valve device Sluicing valve device

2006-07-11

2006-07-11

Look, Edward K. (Department: 3751)

Valves and valve actuation

Reciprocating valve

Particular head and seat cooperation

C251S193000

Reexamination Certificate

active

07073776

ABSTRACT:
A sluicing valve device in which a valve element is arranged in case members attachable to a pipe, and the valve element comprises a valve element core metal fitting, an elastic seal member covering the same, and a lifting and lowering shaft formed into a rod shape along an insertion direction in order to move the valve element core metal fitting along the insertion direction inside of the pipe, wherein the valve element core metal fitting supports the elastic seal member inserted into the pipe and presses the same from the insertion direction to deform elastically, and a guide portion preventing the elastic seal member from protruding in an axial center direction of the pipe is formed on a tip end side in the insertion direction.

REFERENCES:
patent: 3662778 (1972-05-01), Leopold, Jr.
patent: 3746304 (1973-07-01), Mattias
patent: 4483514 (1984-11-01), Kennedy
patent: 4541613 (1985-09-01), Barbe
patent: 6283446 (2001-09-01), Sato et al.
patent: 1 367 303 (2003-12-01), None
patent: 779451 (1957-07-01), None
patent: 1 385 238 (1975-02-01), None
patent: 2003-343748 (2003-12-01), None
patent: 2003-343748 (2003-12-01), None

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