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. 21, 1980
Filed:
Nov. 06, 1978
Applicant:
Inventors:
Jean-Claude Le Dall, Rueil-Malmaison, FR;
Jean-Claude M Pasquet, Saint Cloud, FR;
Assignee:
Le Materiel Telephonique, Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ; F04B / ;
U.S. Cl.
CPC ...
417 38 ; 417 62 ; 417238 ; 417350 ;
Abstract
A single motor 25 simultaneously drives two pump elements mounted on its shaft ends. The hydraulic circuit, the motor and the pump elements are contained within a one-piece 3-part assembly comprising a central part 2 placed between two end parts 1 and 3. It is merely necessary to change the relative orientation of one of the end parts, the movable part 1, through 180.degree. in order to couple the two pump elements in series or in parallel as required. The pumping device operates immersed. Suitable for several applications to meet domestic and light industrial requirements.