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:
Oct. 19, 1976
Filed:
Jun. 20, 1975
Masaru Asano, Inazawa, JA;
Teruo Kamioka, Inazawa, JA;
Abstract
The disclosed safety devices are disposed at either of the edges of each stair of an escalator. Each device includes a sensor dovetailed to a bracket for the individual stair treads and risers to abut against and be horizontally aligned with a displacement element screwed to the bracket. The sensor of each device projects beyond a corresponding riser. If a passenger's calf or the like contacts the sensor, the latter retrogrades to displace the abutting end portion of the displacement element toward the adjacent skirt plate of the escalator to narrow a space formed between the displacement element and the skirt plate. The sensor may be disposed in a vertically aligned, abutting relationship upon the displacement element to somewhat project beyond the cleats on a tread.