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:
Jan. 25, 1977
Filed:
Aug. 28, 1975
Joseph K Kraft, Gettysburg, PA (US);
Robert A Sette, Gettysburg, PA (US);
Leigh F Jackson, Fayetteville, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
An elevator system including an elevator car, a passenger opening in the elevator car, a door operable between open and closed positions relative to the passenger opening, and a door operator for the door. The door operator includes a drive motor, a drive for imparting linear motion to the door, speed control and limit switches, associated door control, and various accessory equipment, such as emergency lighting control, alarm bell, and control for object sensing door re-opening devices, all mounted within a common enclosure on the top of the elevator car, which permits open wiring between the electrical components. The common enclosure also functions as the hanger roller track and up thrust roller guide.