Patent · US Active

Gate valve for a vacuum chamber and vacuum chamber

US8448918B2 · kind B2 · utility

4Cited by

9References

14Claims

0Family size

Assignee

TEL SOLAR AG · CH

Inventors

Philipp Wagner · Mellrichstadt, DE
Andreas Meier · Wilhermsdorf, DE
Christian Egli · Sevelen, CH

Key dates

Filing date	Dec 19, 2008
Grant date	May 28, 2013
Priority date	—
Expiry date	Sep 9, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K3/182
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A gate valve for a vacuum chamber comprises two carriers (5a) each connected to a frame structure providing an essentially plane front by two parallel links (6) and to an actuating rod (12a) by parallel levers (14). Upward motion of the actuating rods (12a) by a piston (17) causes, via the levers (14), upward motion of the carriers (5a) which is transformed into a circular motion by the links (6) where the carriers (5a) at the same time approach the front while remaining parallel to it, moving sealing plates (9) which are fixed to the carriers (5a) to an active position where they press against the front and seal openings (3) therein. Retraction of the piston (17) effects an inverse motion, whereby the sealing plates (9) are completely removed from the openings (3) and the latter made easily accessible.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.