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:
Aug. 29, 1989
Filed:
Mar. 26, 1985
Applicant:
Inventors:
Christian E Bailey, Port Deposit, MD (US);
John J Bowser, Wilmington, DE (US);
Assignee:
W. L. Gore & Associates, Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
7386333 ; 7386351 ;
Abstract
A device for drawing a small representative sample of air from a laminar flow air stream, such as that flowing through a clean room, is provided, which comprises a gridwork of evenly-spaced tubes having regularly spaced orifices to sample representatively a laminar flow stream of air to determine the number of particles therein. The gridwork of tubes is sized and configured to leave the laminar flow of the air stream substantially undisturbed.