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:
Nov. 19, 1996
Filed:
Jul. 05, 1995
Yvon Castel, Croissy sur Seine, FR;
Institut Francais du Petrole, Rueil Malmaison, FR;
Abstract
Pumping device for effecting direct energy exchange between a drive fluid and a primary fluid. The device has, in combination, a hollow static part allowing the drive fluid to pass, which static hollow part has at least one orifice and a distributing part having at least one opening the distributing part is located relative to the static hollow part to allow the drive fluid to pass from an orifice to an orifice, the distributing parts and the static part are joined by a connecting and sealing part, and a movable part is disposed in the space formed by the static hollow part, the distributing part, and the connecting part. The movable part has at least one means allowing orifices to be blocked, so that at least part of said drive fluid is ejected toward the primary fluid when the movable part rotates.