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:
Dec. 20, 1983
Filed:
Oct. 30, 1978
Applicant:
Inventors:
Robert L Strickman, Bridgeton, NJ (US);
Melvyn B Strickman, Bridgeton, NJ (US);
Assignee:
Sherwood Research and Development Partnership, Englewood Cliffs, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; C11D / ; B24D / ;
U.S. Cl.
CPC ...
51296 ; 1510493 ; 51307 ; 264 453 ; 264 462 ; 264 54 ;
Abstract
This invention relates to dry, dense, hydrophilic polyurethane foam cleaning pads containing abrasives, detergents and combinations thereof dispersed integrally therein as well as to a method of manufacturing these pads. The pads' surfaces are strengthened by the densification of the reacting prepolymer resin during manufacture, and preferably the pads have at least one surface textured for additional cleaning area. The surfaces can contain an optional additional layer of abrasives to obtain a greater durability and a more desirable scouring action.