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:
Apr. 14, 2015
Filed:
Jun. 23, 2011
Applicant:
Timothy S. Roman, Minnetonka, MN (US);
Inventor:
Timothy S. Roman, Minnetonka, MN (US);
Assignee:
Graco Minnesota Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 29/06 (2006.01); F01L 23/00 (2006.01);
U.S. Cl.
CPC ...
F01L 23/00 (2013.01); F01L 29/06 (2013.01);
Abstract
A cup for an air valve assembly in a positive displacement pneumatic motor includes a cup body, a gas cavity, and a first pilot slot. The cup body is rectilinear and has a sliding face as one side, and the gas cavity is concave and extends into the cup body through the sliding face and terminates within the cup body. The first pilot slot extends from the gas cavity and into the cup body through the sliding face and terminates within the cup body.