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:
Feb. 18, 2003
Filed:
Dec. 27, 2001
Richard Lauch, Hopatcong, NJ (US);
Melanie J. Smith, Bedminster, NJ (US);
Inventio AG, Hergiswil NW, CH;
Abstract
An escalator combplate load and obstruction sensor is capable of monitoring and indicating both horizontal and vertical force and loads. The combplate is mounted for limited horizontal and vertical travel in response to corresponding horizontal and vertical loads. Both the horizontal and vertical travel are resolved into a displacement at an angle to both the horizontal and vertical, and the displacement is applied to a sensing portion of a loadcell which generates an electrical output proportional to the applied displacement and force. An indicator is coupled to the loadcell to indicate a relationship between the displacement applied to the loadcell and at least one reference value, whereby the horizontal and vertical loads applied to the combplate can be monitored and improper load levels determined. By proper choice of the displacement angle differing vertical and horizontal forces can be resolved into the same displacement, allowing a single indicator to simultaneously display both vertical and horizontal loading status.