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:
Dec. 19, 1989
Filed:
Jul. 18, 1988
Applicant:
Inventors:
Richard D Lewis, Bloomington, MN (US);
James P Korzenowski, Minneapolis, MN (US);
Larry J DeHemmer, Plymouth, MN (US);
Assignee:
Graco Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
13750541 ; 251120 ;
Abstract
The pressure regulator is designed for use with materials which are particularly subject to degradation such as metallic paints. The construction of the device allows for maintenance of laminar flow throughout the device. A circular disk is located a variable distance from the upper side of the pressure reducing chamber and leads to annular spaces around the stem of the disk, the clearance is being such as to maintain laminar flow.