Apparel – Guard or protector – Penetration resistant
Patent
1998-04-10
1999-11-09
Calvert, John J.
Apparel
Guard or protector
Penetration resistant
2 2, 2463, 2464, 2465, 2467, F41H 102, A41D 1300
Patent
active
059789611
ABSTRACT:
An improved rigid safety-vest structure intended for general use in hazardous-construction environments, such as encountered by trench and tunnel workers. Sudden cave-in situations are said by the U.S. Federal-agency O.S.H.A. to tragically take many lives annually to insidious suffocation, attributable to simple impairment of a workers'upper-abdomen/thorax region by suddenly surrounding cave-in earth. The notion of the HardJacket.TM. being to prevent these fatalities, by providing the worker a light-weight aerated upper-torso safety-vest within which an earthen immobilized worker can maintain their vital breathing action, -while efforts are being made to bodily extricate them. The disclosure includes a three-paneled frontally opening self-donning structure fabricated with an interlaced metal truss-structure, preferably enveloped in a bright-colored aerating nylon-fabric; plus a generic-variant embodiment, formed of inner and outer rigid-skins separated by a rigid foam-core interior. All iterations employ a comfortably flexile shoulder suspension arrangement, and may be provided with optional backside rollers, enabling a worker to more easily scoot beneath an overhanging ledge or vehicle.
REFERENCES:
patent: 3878561 (1975-04-01), Winiecki
patent: 3991421 (1976-11-01), Stratten
patent: 4422183 (1983-12-01), Landi et al.
patent: 4680812 (1987-07-01), Weigl
patent: 5349893 (1994-09-01), Dunn
Calvert John J.
Heck Robert Von
Muromoto Bobby
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