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. 17, 1991
Filed:
Apr. 07, 1989
Applicant:
Inventors:
Neal A Siegel, Deerfield, IL (US);
Edward S Tripp, Park City, IL (US);
Diane L Aunet, Waukegan, IL (US);
Gradimir G Georgevich, Mundelein, IL (US);
Assignee:
Abbott Laboratories, Abbott Park, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156 733 ; 156 731 ; 1565801 ; 4251742 ; 162-9 ; 162204 ; 162207 ; 162182 ;
Abstract
A method for cutting fibrous materials using ultrasonic energy involves chemically modifying a fibrous material prior to the application of ultrasonic energy. Preferred fibrous materials include cellulose materials and its derivatives, such as, paper. Chemical modification includes oxidation or hydrolysis. Also disclosed is a test device made according to the method. The invention allows for the fusing of plastic and the simultaneous cutting of a chemically modified fibrous material along the line of fusion.