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.

Date of Patent:
Aug. 30, 2011

Filed:

May. 29, 2009
Applicant:

Eric M. Heitkamp, Columbus, OH (US);

Inventor:

Eric M. Heitkamp, Columbus, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 75/48 (2006.01);
U.S. Cl.
CPC ...
Abstract

A force limiting device for use with a safety belt retractor is provided. The safety belt retractor includes a spool and a safety belt webbing attached to and wound around the spool for payout of the webbing under the influence of forwardly directed movement of a vehicle occupant. The force limiting device comprises a fixed member, a shaft connected to the fixed member and a coupling received on the shaft and operatively connected to the spool. The coupling is configured to move along the longitudinal extent of the shaft towards the fixed member during payout of the webbing. Engagement of the coupling with the fixed member prevents further payout of the webbing. The shaft is configured to limit movement of the coupling along the shaft during payout of the webbing to control effective belt force on the vehicle occupant during a crash condition.


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