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:
Jan. 07, 1997
Filed:
Jan. 16, 1996
Applicant:
Inventor:
Walter J Ferguson, Waterbury, CT (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
73732 ; 73741 ;
Abstract
A pressure gauge for semiconductor processing that defines an internal flow path from the socket inlet to the displaceable end of the Bourdon tube that is shelf free so as to be self drainable for internal cleansing and purging whereby to avoid any trapping of contaminants that could subsequently have a deleterious affect on the process.