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. 24, 2009
Filed:
Mar. 30, 2005
Applicants:
Alexei Sheydayi, Gilbert, AZ (US);
Thomas Sutton, Mesa, AZ (US);
Inventors:
Alexei Sheydayi, Gilbert, AZ (US);
Thomas Sutton, Mesa, AZ (US);
Assignee:
Supercritical Systems, Inc., Gilbert, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/122 (2006.01);
U.S. Cl.
CPC ...
Abstract
An isolation valve is preferably applied to the semiconductor industry for sealing a process vessel and also operates effectively at plus-atmospheric pressures. A double containment gate valve assembly includes a housing and a movable head assembly within the housing. The housing includes a first access opening and a second access opening. The head assembly is configurable into a first position where an access path through the first and second access openings is clear, and a second position where the access path is blocked.