Chairs and seats – Crash seat – Force-absorbing means incorporated into headrest area
Reexamination Certificate
2006-12-05
2006-12-05
Nelson, Jr., Milton (Department: 3636)
Chairs and seats
Crash seat
Force-absorbing means incorporated into headrest area
C297SDIG011
Reexamination Certificate
active
07144081
ABSTRACT:
A headrest for alleviating whiplash injury and comprising at least one support member which is uprightly fixed to a seat and a cushioning member of polyurethane foam attached to said at least one support member and enclosed in a covering material is disclosed, wherein the polyurethane foam is one having the following properties: A) A density within the range of 50 to 100 kg/m3; B) a compressive strength between 0.9 and 3.5 mN/mm2at 25% deformation and between 1.3 and 4.5 mN/mm2at 40% deformation; C) a glass transition temperature, Tg (DSC), between −10° C. and +10° C., preferably −5° C. to +4° C.; D) a loss temperature peak maximum between 15 and 30° C.; E) a temperature range for the loss peak between −40° C. and +90° C.; and F) a loss peak area between 4.0 and 8.0.
REFERENCES:
patent: 4744601 (1988-05-01), Nakanishi
patent: 4919483 (1990-04-01), Horkey
patent: 5290091 (1994-03-01), Dellanno et al.
patent: 2002/0060482 (2002-05-01), Sakakibara et al.
patent: 19746413 (1998-04-01), None
patent: 10211840 (1997-11-01), None
patent: 11155879 (1997-11-01), None
patent: 300362 (1997-05-01), None
patent: WO 9944856 (1999-09-01), None
patent: WO 00/20248 (2000-04-01), None
Jr. Milton Nelson
McDermott Will & Emery LLP
LandOfFree
Headrest for alleviating whiplash injury and the use of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Headrest for alleviating whiplash injury and the use of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Headrest for alleviating whiplash injury and the use of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3720077