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. 20, 2001
Filed:
May. 04, 2000
Rolf Müller, Shizuoka, JP;
Hanspeter Bloch, Buchrain, CH;
Inventio AG, Hergiswil, CH;
Abstract
A maintenance trestle is stowed in folded-together form below the floor of an elevator car. The maintenance trestle is erected by tilting the floor up towards the car wall about a first fulcrum. The maintenance trestle includes a platform hinged to at least one fastening point on the bottom side of the tilted-up floor and at least one support hinged to the platform at a fulcrum opposite the fastening point and engaging the elevator car. The floor and the support position the platform in an extended position wherein a person standing on the platform can reach through a hatch in the car ceiling to work in the elevator shaft. A stay for stabilizing the maintenance trestle can extend between the fulcrum on the platform and another fulcrum on the car.