Protective helmet

Details Protective helmet Protective helmet

2011-04-26

2011-04-26

Hurley, Shaun R (Department: 3765)

Apparel

Guard or protector

For wearer's head

C002S410000

Reexamination Certificate

active

07930771

ABSTRACT:
A protective helmet is described comprising: an outer layer (1); an inner layer (5) for contact with a head of a wearer; and an intermediate layer (3, 4) comprising an anisotropic cellular material comprising cells having cell walls, the anisotropic cellular material having a relatively low resistance against deformation resulting from tangential forces on the helmet. The anisotropic material can be a foam or honeycomb material. The foam is preferably a closed cell foam. The helmet allows tangential impacts to the helmet which cause less rotational acceleration or deceleration of the head of the wearer compared to helmets using isotropic foams while still absorbing a significant amount of rotational energy.

REFERENCES:
patent: 3174155 (1965-03-01), Pitman
patent: 3447163 (1969-06-01), Bothwell et al.
patent: 5561866 (1996-10-01), Ross
patent: 5637389 (1997-06-01), Colvin et al.
patent: 6183836 (2001-02-01), Pflug
patent: 6658671 (2003-12-01), Von Holst et al.
patent: 6726974 (2004-04-01), Pflug et al.
patent: 2002/0023291 (2002-02-01), Mendoza
patent: 2004/0117896 (2004-06-01), Madey et al.
patent: 2006/0148919 (2006-07-01), Maurer et al.
patent: 44 08 928 (1994-03-01), None
patent: 1 142 495 (2001-10-01), None
patent: 2 561 877 (1985-10-01), None
patent: WO 01/45526 (2001-06-01), None
patent: WO 2004/032659 (2004-04-01), None

Affiliated with

Also associated with

Rating

Protective helmet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Protective helmet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protective helmet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2712200