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. 20, 1977
Filed:
Jan. 12, 1976
Walter McDonald, Landing, NJ (US);
Norbert F Seitel, Gilette, NJ (US);
John E Ayres, Westwood, NJ (US);
Other;
Abstract
An elevatable operator-actuated lifting device, including a lower support frame and a platform section telescopically interfitted with the support frame as to be elevatable with respect thereto. Hydraulically actuated piston and cylinder means are provided for telescoping and de-telescoping the platform section with respect to the support frame, to enable elevation and lowering of the platform section. Means moveable with the platform section, including a manually actuated hydraulic pump, enable pressurization and de-pressurization of the piston and cylinder means, to thereby enable raising and lowering of the platform section by an operator standing thereupon.