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. 04, 1977
Filed:
Nov. 07, 1975
Applicant:
Inventor:
Keith E Ramsey, Pleasant Lake, MI (US);
Assignee:
K-D Manufacturing Company, Waco, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66F / ; B66F / ;
U.S. Cl.
CPC ...
214670 ; 187 / ;
Abstract
A load handling mast for lift trucks including an extensible assembly of three rail sections nested together and interconnected by load supporting chains and a hydraulic rising piston and cylinder ram mounted on the middle rail section. The chains are reeved over sheaves mounted on the ram piston rod and the rail sections to provide a four to one ratio of mast extension relative to piston rod extension. The full extension and retraction of the mast and the support of the load manipulated by the mast is effected entirely through the chains and hydraulic ram without the use of a latch system.