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:
Jan. 14, 2020
Filed:
Oct. 23, 2017
Dropsa S.p.a., Milan, IT;
Walter Divisi, Monaco, MC;
DROPSA S.P.A., Milan, IT;
Abstract
A pneumatic immersion lubricant pump, including a primary piston sliding in a sealed manner in contrast to at least one spring inside a cylindrical body together with which the primary piston defines a chamber provided on an opposite side of the primary piston with respect to that where the at least one spring is positioned, a body of the pump including at least one channel in which an element projecting from the primary piston is slidably housed in a sealed manner. The body of the pump including a plurality of cylinders each equipped with a loading port open on the outside of the pump body. Each cylinder housing a secondary piston axially constrained to the primary piston. The projecting element and the channel defining a pressurization duct of the chamber.