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:
May. 07, 1985
Filed:
Sep. 30, 1982
Applicant:
Inventor:
Kazutoshi Ohta, Nagoya, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 67 ; 187 / ; 188377 ; 206586 ; 220445 ; 220902 ;
Abstract
A buffer device for an elevator employs, as a buffer member, a foamed plastic material such as polyurethane foam which undergoes very little permanent deformation upon receipt of an impact. The foamed plastic material is accommodated in a box made of a thin non-combustible material, and a heat-insulating material is disposed between the box and the buffer member in the box.