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:
Aug. 09, 1988
Filed:
Sep. 05, 1986
Applicant:
Inventors:
Walter Amos, Wiesbaden, DE;
Horst Klein, Kelkheim-Fischbach, DE;
Assignee:
Blendax-Werke R. Schneider GmbH & Co., Mainz, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A46D / ;
U.S. Cl.
CPC ...
300 21 ; 21912173 ; 264 26 ;
Abstract
The present invention relates to a method for rounding the bristle tips of toothbrushes by the action of laser radiation, characterized in that the rounding process is effected in an electrostatic field, thus avoiding the fusion of the individual bristles as well as the formation of a mushroom-like bristle tip.