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:
Nov. 16, 2010
Filed:
May. 05, 2004
Gérard Sirigu, Gien, FR;
Gérard Sirigu, Gien, FR;
Otis Elevator Company, Farmington, CT (US);
Abstract
The safety device according to the invention for operator protection in elevators with a low-height shaft bottom (), is characterized in that it uses a brace () hinged on abase plate () secured to the bottom of the shaft () and arranged when folded in the horizontal position at a reduced height above the shaft bottom () in normal elevator operation, and a buffer element () secured underneath the car () and adapted to come into contact with a horizontal side surface of the brace () in its folded position, wherein said brace () is adapted to be moved by an appropriate lifting device () to a vertical lifted position in which the buffer element () can come into contact with an upper surface () of the brace (), in a condition where the operator can work in the shaft bottom (), wherein the length of the 15 brace added () to the thickness of the buffer element () provides for a sufficient depth between the underside of the car () and the shaft bottom () to suppress any risk for the operator to be crushed in the shaft bottom ().