The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2006
Filed:
Jan. 27, 2003
Alexei Sheydayi, Gilbert, AZ (US);
Alexei Sheydayi, Gilbert, AZ (US);
Tokyo Electron Limited, Tokyo, JP;
Abstract
A closure assembly coupled to a vessel including a chamber and an access port in communication with the chamber, the closure assembly comprising: a door assembly coupled to the vessel and configured to move between an open position and a closed position, the door assembly in contact with the access port at a first location thereby sealing the chamber in the closed position, wherein pressure within the chamber applies a force to the door assembly at the first location. An actuator in moveable contact with the door assembly at a second location, the actuator configured to apply a counteracting force to the door assembly at the second location in response to pressure within the chamber to maintain the door assembly in the closed position. The actuator moves between a non-actuated and actuated position within an actuator bore, the actuator in the actuated position when a desired amount of pressure is applied to the actuator bore.