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. 05, 1999
Filed:
Jan. 11, 1995
Thomas E Wittmann, Seattle, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A seat assembly for commercial aircraft or other vehicles has features that reduce head excursion in high impact events such as crashes or collisions. These include the use of low-elongation seatbelt material and high seatbelt anchor location. Another feature which reduces head excursion is an articulating seatpan. The bottom seat cushion is guided by rollers in tracks to follow a prescribed motion under forward inertial load. As the inertial load is applied, the seatpan travels forward and tilts upward. This reduces forward pelvic rotation which, in turn, reduces head excursion. Other features which limit pelvic rotation are the use of dynamically stiff foam for the seat cushion, and a relatively steep initial cushion angle/cushion contour.