Title:
GATE VALVE FOR VACUUM
Document Type and Number:
WIPO Patent Application WO/2013/073039
Kind Code:
A1
Abstract:
A vertically moving body (24) for adjusting the position of a valve plate is obtained from a first ring-shaped body (24A1) and a second ring-shaped body (24A2). The second ring-shaped body (24A2) is connected to the first ring-shaped body (24A1) in a freely detachable manner by means of projections (40) that engage with engaging parts and non-engaging parts (38). The connection to the first ring-shaped body (24A1) can be released and the second ring-shaped body taken out of the casing (12) by aligning the projections (40) with the non-engaging parts (38). Only when the second ring-shaped body (24A2) is moved, by the driving of a drive source (20) to a position at which frictional resistance with the surroundings is released, is displacement allowed and alignment of the projections (40) with the non-engaging parts (38) possible.
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Inventors:
KIMURA MIE (JP)
VYERS EMMANUEL (JP)
VYERS EMMANUEL (JP)
Application Number:
PCT/JP2011/076563
Publication Date:
May 23, 2013
Filing Date:
November 17, 2011
Export Citation:
Assignee:
PROGRESSIO LLC (JP)
KIMURA MIE (JP)
VYERS EMMANUEL (JP)
KIMURA MIE (JP)
VYERS EMMANUEL (JP)
International Classes:
F16K3/10; F16K3/04; F16K3/16; F16K51/02
Foreign References:
| JP4630994B1 | 2011-02-09 | |||
| JPH09178000A | 1997-07-11 | |||
| JP2001090849A | 2001-04-03 | |||
| JP2008025836A | 2008-02-07 |
Attorney, Agent or Firm:
KIKUCHI, Shinichi et al. (JP)
Kikuchi Shin-ichi (JP)
Kikuchi Shin-ichi (JP)
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Claims: