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. 17, 1996
Filed:
Dec. 13, 1993
Applicant:
Inventors:
Haruo Kubota, Osaka, JP;
Yoshio Nishi, Osaka, JP;
Yoshio Ueno, Osaka, JP;
Yasuo Wada, Osaka, JP;
Munenobu Honda, Osaka, JP;
Assignee:
Elephant Chain Block Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66D / ; B66D / ; F16D / ; B60T / ;
U.S. Cl.
CPC ...
254368 ; 188 712 ; 1882 / ; 1882 / ; 254357 ; 254375 ;
Abstract
A manual hoist and traction machine wherein an outer diameter of a first lining plate constituting a mechanical brake is made smaller than an inner diameter of a driven disc of a handwheel. The outer diameter of a second lining plate and of a driven disc are made smaller than an inner diameter of a cylindrical portion of a braking ratchet wheel, and the first and second lining plates are formed of a lining raw material having improved performance with a compressive strength of 15 (Kgf/mm.sup.2) or more and a maximum strain of 12 (10.sup.-3 mm/mm) or more.