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:
Sep. 16, 1980
Filed:
May. 02, 1979
Julius F John, Gardena, CA (US);
Norco Industries, Inc., Gardena, CA (US);
Abstract
A unitary multiple purpose oil block for use with and in cooperation in a lifting jack features a rigid block anchored between a pair of side plates comprising a frame adjacent one end. On various faces of the block holes are drilled for mounting the operating mechanisms, namely a hydraulic power cylinder, a pump, a lift-lower control valve and an overload release. Extensions of the holes are drilled to form passages of the hydraulic network with all passages in respective right angular relationship communicating with each other within a central partition between a pair of oil reservoir chambers. The operating mechanisms are separately mounted for purposes of economy of weight, simplicity, easy access and servicing.