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. 21, 1996
Filed:
Sep. 01, 1994
Sang Y Hwang, Seoul, KR;
Kil Hee Cho, Kyungsangnam-Do, KR;
LG Industrial Systems Co., Ltd., Seoul, KR;
Abstract
A rail brake apparatus for a linear motor elevator includes mating magnetic cores with coils and spring, brake arms connected with magnetic cores and pivotally engaged with a shaft, linings disposed at both ends of the brake arms for braking a guide rail, thereby reducing the weight of the magnetic units, balancing both magnets in its weight, and obtaining the same pulling force in both magnetic cores. In addition, it further includes a gap maintaining apparatus for maintaining a predetermined gap the upper and the lower magnetic cores, thereby reducing an impact noise occurred during pulling each other and preventing friction due to the slip of the lining, so that the car of the elevator can precisely stop at a desired location.