Static structures (e.g. – buildings) – Specified wear or friction-type traffic-carrying surface – Perforate structure having twisted element or particular...
Patent
1980-12-22
1982-08-10
Lesmes, George F.
Static structures (e.g., buildings)
Specified wear or friction-type traffic-carrying surface
Perforate structure having twisted element or particular...
52673, 15238, 428597, 428132, 428134, 291635R, 413 15, B32B 310, E04C 242, F16S 108
Patent
active
043431194
ABSTRACT:
An improved anti-skid tread or grating (10) design is provided with gripping members or rosettes (30) having a plurality of upstanding individual lobes (36) which are configured in such a way and project high enough to provide an excellent gripping surface. The lobes (36) of the design are self-cleaning, and have non-continuous gripping edges at their crests (40) that accommodate a greater build up of ice or mud without clogging the grating (10).
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Caterpillar Tractor Co.
Lesmes George F.
Thomas Alexander S.
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