Threshold mat

Details Threshold mat Threshold mat

1992-07-17

1993-04-27

Friedman, Carl D.

Static structures (e.g., buildings)

Specified wear or friction-type traffic-carrying surface

52181, 52584, 15215, 15216, 15217, 428 53, 428 54, A47L 2326

Patent

active

052050920

ABSTRACT:
A threshold mat comprising alternating scraper units and wiper units. The improvement is that the wipers, that is strips of carpeting are carried on extrusion carriers and are gripped by their edges via a tightenable clamp incorporated in the scraper unit. The feature of tightening enables different thicknesses of carpet material to be accommodated.

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patent: 4891920 (1990-01-01), Pingston
patent: 4952434 (1990-08-01), Rumsey et al.
patent: 5157804 (1992-10-01), Williams

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