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:
Apr. 29, 2014
Filed:
Mar. 11, 2012
Jiri Kral, Troy, MI (US);
Stephen J Cassatta, Wixom, MI (US);
Mark A. Morra, Clarkston, MI (US);
Theresa M. Kondel, Milford, MI (US);
Jiri Kral, Troy, MI (US);
Stephen J Cassatta, Wixom, MI (US);
Mark A. Morra, Clarkston, MI (US);
Theresa M. Kondel, Milford, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A test apparatus collects performance data for a seat belt system having components providing operating stages of pre-tensioning, locking, and load limiting of the seat belt. A bench plate mounts the components of the seat belt system and includes first and second pulleys spaced apart on the bench plate and having the seat belt extending horizontally therebetween. At least one load sensor senses the load experienced by the seat belt. A resistor engages the seat belt between the first and second pulleys and pulls downwardly to introduce slack in the seat belt. An impactor mass is suspended above the seat belt and is released to free-fall onto the seat belt and impose a load on the seat belt simulating the load of a seated occupant being imposed on the seat belt. A control module energizes the pre-tensioning stage and a plotter records force versus time performance data.