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:
Feb. 08, 1983
Filed:
Jul. 10, 1980
Manfred Klauck, Lebach, DE;
Abstract
A compact hydraulic pumping and switching apparatus capable of pumping a hydraulic liquid in connection with an operating liquid supply tank, a clean liquid tank and a dirty liquid reservoir tank in three different modes. One mode fills the supply tank and filters the liquid. A second merely filters liquid from the supply tank. And the third drains the supply tank without filtering the liquid. The apparatus comprises a carrier coupling together, into a single unit, a motor, a pump, a filter and a switching device. The switching device has two spherical stop cocks therein, each with a passage comprising two perpendicular portions. The switching device is connected to the supply tank at two connections and to the clean liquid tank and to the dirty liquid reservoir tank at one connection respectively.