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:
Jul. 02, 1985
Filed:
Jun. 14, 1982
Douglas J Bingler, Furlong, PA (US);
Milton Roy Company, St. Petersburg, FL (US);
Abstract
A sealless fluid pump apparatus has a primary pump moving fluid from an inlet through an outlet of the apparatus and a secondary pump adjoining the primary pump. Shaft means driving the two pumps extends through a portion of the housing separating the two adjoining pumps as well as through another portion of the housing separating the two pumps from a motor or other means driving the shaft means. No seals are provided where the shaft means extends through the housing. Rather, the secondary pump operates to resist the flow of fluid between the shaft means and housing into the secondary pump.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile