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. 23, 1979
Filed:
Aug. 22, 1978
Frank R Dybel, Olympia Fields, IL (US);
William P Dybel, Olympia Fields, IL (US);
Other;
Abstract
A load monitoring system for monitoring loads that are cyclicaly applied to a force carrying member is disclosed. The load monitoring system comprises a transducer for sensing the loads exerted and a differential load monitoring circuit which receives the transducer signals, generates a normal load reference signal relating to previous load signals received and compares the normal load reference signal to the present load signal to determine when the present load exceeds the previous load by a predetermined amount for successive cycles of operation. The differential load monitoring circuit also includes an inhibit circuit which, during initial start-up of the cyclical load serves to inhibit the operation of the differential load monitoring circuit until such time as the normal load reference signals can be established. Furthermore, an absolute load monitoring circuit is provided which detects when the loads in the force carrying member have approached the capacity of the force carrying member or any predetermined maximum load.