The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 1991
Filed:
Dec. 27, 1989
Merle R Hoopengardner, Lafayette, CA (US);
Step Loc Corporation, Lafayette, CA (US);
Abstract
A carpet cushion of compressible materials such as urethane foam, natural fibers or felt material has a pressure sensitive adhesive pre-coated on only one side, preferably the side which will be adhered down to a floor. A scrim webbing or other spacer element is laid into the pressure sensitive adhesive after the adhesive has been applied. The spacer element enables the movement of the carpet cushion around on the floor for positioning prior to sticking down to the floor, and when the cushion is rolled for storage and shipment, the spacer element enables the cushion to be rolled without any release film between the rolled layers. In the rolled form of the cushion, the spacer element or scrim webbing prevents the adhesive from strongly adhering to the adjacent opposite surface of the cushion in the roll.