Patents Assigned to PSA Threshold Limited
  • Threshold mat
    Patent number: 5205092
    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.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: April 27, 1993
    Assignee: PSA Threshold Limited
    Inventor: Brian J. Taylor