Undertaking
Patent
1988-02-05
1989-07-11
Scherbel, David A.
Undertaking
52177, 273193R, 404 32, 404 35, A63B 518
Patent
active
048464570
ABSTRACT:
Impact-absorbing safety matting systems include a helipad, a mat for children's play areas, and an athletic sports game surface. All systems have a surface layer with a botton and outer edges, an array of air-filled cells affixed to the bottom of the surface layer, ribs extending a defined distance from the bottom of the surface layer for defining the array of air-filled cells, sealer and aggregate spread over the surface layer and the base immediate to edges, and median ribs extending a shorter distance from the bottom of the surface layer than the defining ribs in order to give added support against a strong blow striking the surface layer and the array of air-filled cells affixed thereto. Each helipad, children's play mat, and athletic sports game surface is characterized by a void area left in place of at least one median rib in order to facilitate cutting through the surface layer, a second layer of sealer spread under the array of air-filled cells and above a base in order to prevent the escape of air from the air-filled cells and to hold the array of air-filled cells in a substantially vertical orientation, a sealer and aggregate spread over the surface layer of the mat in order to prevent deterioration of the mat and loss of shock-attenuating properties resulting from exposure to the sun's ultra-violet rays, and a sloping outer edge surrounding all sides in order to prevent the escape of air therefrom. In lieu of the sloping outer edge, a beveled outer edge may be provided in order to facilitate attachment to and placement in a recess in the base so that an integrated installation is obtained.
REFERENCES:
patent: 957387 (1910-05-01), Stedman
patent: 2920846 (1960-01-01), Lingafelter
patent: 2999431 (1961-09-01), Mitchell
patent: 3251076 (1966-05-01), Burke
patent: 3846945 (1974-11-01), Roby
patent: 4501420 (1985-02-01), Dury
patent: 4557475 (1985-12-01), Donovan
patent: 4572700 (1986-02-01), Mantarro et al.
Safety Surfaces, Inc.
Scafetta, Jr. Joseph
Scherbel David A.
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