A - Human Necessities – 42 – B
Patent
A - Human Necessities
42
B
2/73
A42B 3/14 (2006.01)
Patent
CA 1089601
ABSTRACT OF THE DISCLOSURE The fastener is formed within a protective helmet provided with a crown suspension and a head suspension. The crown suspension has a central por- tion adapted to contact the top of a wearer's head and has radially outwardly extending legs. The head suspension includes an outer strap which encircles the wearer's head at approximately the level with respect to the wearer's head of a normal hat band. A barb is joined to the end of each leg and tapers in thickness from its juncture with the leg to its end. A barb is also joined to a portion of the strap at its upper edge and likewise tapers in thickness from its juncture with the strap to its end. A number of flaps are connected to the inside wall of the helmet and each flap has a slot through which the leg and strap extend. The barbs connected to the straps are positioned above the slots while the barbs connected to the legs are accommodated in the space between the flaps and the inside wall of the helmet. The slots have a width less than the sum of the thicknesses of the barbs adjacent thereto at their junctures with the leg and strap respectively. Either the barbs or the flaps are formed of resilient material which deforms sufficiently to permit insertion of the barbs through the slots but insufficiently to permit withdrawal of the barbs therefrom.
288421
Lamb Charles C. T.
Wilbur James T.
LandOfFree
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