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:
Oct. 15, 2024
Filed:
Nov. 26, 2019
Graco Minnesota Inc., Minneapolis, MN (US);
Jeromy D. Horning, Albertville, MN (US);
August F. Legatt, Maple Lake, MN (US);
Justin G. Paulson, Fridley, MN (US);
David J. Thompson, Oak Grove, MN (US);
Graco Minnesota Inc., Minneapolis, MN (US);
Abstract
A piston rod () for a spray fluid pump includes an interior pumping chamber (), one or more channels () formed on the exterior of the piston rod, and one or more side bores () extending through the piston rod and in fluid communication with the interior piston chamber and one or more channels. The one or more channels () extend at least partially axially and are open along a length of the channel. The one or more channels are angled offset with respect to the reciprocation axis for imparting a rotational moment on the piston rod to cause rotation of the piston rod during reciprocation of the piston rod. A spray fluid pump comprising such piston rod is also disclosed.