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:
Jun. 06, 1995
Filed:
Dec. 10, 1993
Young S Yoo, Avon, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
The invention obtains the weight of an elevator car in a manner which is minimally dependent on the distribution of the load within the cab by means of a load cell and support sandwiched between a first and second plate, the load being shared between the load cell and support. Threaded rods pass through the first and second plates, as well as through a space between the first and second plates, and further pass through hitch springs and support the car. The upper ends of the rods are connected to the hoist ropes. The load weighing apparatus further includes a pair of rod positioners which keep constant the lateral displacement of the rods one from another. The load cell and support are not enclosed by the rods, yielding the further advantage that a mechanic has easy access to the load cell for its maintenance.