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:
Jul. 20, 1993
Filed:
Jun. 07, 1991
Applicant:
Inventors:
Horst Klein, 6233 Kelkheim-Fischbach, DE;
Wolfgang Wiedemann, 8706 Hochberg, DE;
Hans Klinger, 8702 Rossbrunn, DE;
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A46D / ; D01D / ;
U.S. Cl.
CPC ...
300 21 ; 264162 ; 51DI / ;
Abstract
The present invention relates to a process for producing bristle materials suitable for inserting into toothbrushes and based on synthetic fibres which have been roughened on their surface by mechanical action, in particular by means of a blast apparatus, the roughening being accomplished on the endless fibre strand after stretching. Using these bristle materials, toothbrushes with an improved plaque-removing action can be produced.