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. 10, 2017
Filed:
Dec. 22, 2014
Graco Minnesota Inc., Minneapolis, MN (US);
Bradley H. Hines, Andover, MN (US);
Brian W. Koehn, Minneapolis, MN (US);
Jeffrey A. Earles, Lakeville, MN (US);
Paul W. Scheierl, Circle Pines, MN (US);
Adam K. Collins, Brooklyn Park, MN (US);
Graco Minnesota Inc., Minneapolis, MN (US);
Abstract
A drive system for a pump includes a first housing defining an internal pressure chamber, a working fluid disposed within and charging the internal pressure chamber, a second housing disposed within the first housing, a solenoid disposed within the second housing, a reciprocating member slidably disposed within the solenoid, a pull housing integral with a first end of the reciprocating member, the pull housing defining a pull chamber, a pull disposed within the pull chamber, and a fluid displacement member coupled to the pull.