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:
Oct. 30, 2001
Filed:
Feb. 11, 1999
Applicant:
Inventors:
Robert Braun, New Lenox, IL (US);
Diana Dobrez-Florez, Crest Hill, IL (US);
Jess Garcia, Warrenville, IL (US);
Deborah Schutter, Minooka, IL (US);
Assignee:
Flexible Products Company, Marietta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 6/552 ; B29C 7/302 ; B29C 7/310 ; B29C 7/312 ;
U.S. Cl.
CPC ...
B29C 6/552 ; B29C 7/302 ; B29C 7/310 ; B29C 7/312 ;
Abstract
A method for filling cracks in concrete surfaces using a one-component, hydrophilic polyurethane prepolymer without the addition of any granular impregnating agents The prepolymer is provided in a hand-held aerosol container and is injected into the cracks through hollow injection ports that are adhered in place on the surfaces over the cracks and subsequently closed off when filled. The crack is filled from the bottom up to prevent the formation of air pockets in the crack.