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:
Mar. 05, 1996
Filed:
Apr. 25, 1994
Richard J Ericson, Southington, CT (US);
James M Draper, Woodstock, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A safety brake apparatus for a vehicle traveling in an elevator hoistway is provided, comprising a first link, a pair of second links, a connector rod, and an intermediate link. The first link is pivotly attached to a first side member of the vehicle. The connecting rod extends through the first and second side members, pivotly mounted within each side member. One of the second links is fixed to the connecting rod on the first side member side of the vehicle and the other second link is fixed to the connecting rod on the second side member side of the vehicle. The intermediate link is pivotly attached to both the first and second links on the first side member side of the counterweight. Each second link is connected to a safety brake. Actuating the first link causes the intermediate link to rotate the second links and therefore the connector rod, and causes the second links to actuate the respective safety brake.