Gate valve
First Claim
1. A gate valve for the simultaneous blocking or clearing of two rectangular passage openings that are aligned with one another and are provided between two vacuum chambers comprising:
- a slider that can move from a position that clears the passage openings into a position that closes the passage openings, said slider including two valve plates opposite one another, a lifting element for moving the valve plates formed by a plurality of pneumatic cocking cylinders arranged over the length of the valve plates cylinders said pneumatic cocking cylinders are connected to a common pressure medium supply conduit.
3 Assignments
0 Petitions
Accused Products
Abstract
A gate valve (1) is constructed for the simultaneous blocking or clearing of two rectangular passage openings (8,9) of two chamber walls (4,5) that are provided between two vacuum chambers (1,3) and aligned with one another. To this end, it has two valve plates (20, 21), which are a component of a slider (15), which is situated so that it can move with play from a position clearing the passage openings (8,9) to a position which closes the passage openings (8,9). To move the valve plates (20,21) to the closing setting against the passage openings (8,9) on the slider (15), at least one lifting element (24), which is acted on by pressure, is provided.
39 Citations
10 Claims
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1. A gate valve for the simultaneous blocking or clearing of two rectangular passage openings that are aligned with one another and are provided between two vacuum chambers comprising:
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a slider that can move from a position that clears the passage openings into a position that closes the passage openings, said slider including two valve plates opposite one another, a lifting element for moving the valve plates formed by a plurality of pneumatic cocking cylinders arranged over the length of the valve plates cylinders said pneumatic cocking cylinders are connected to a common pressure medium supply conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification