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:
Apr. 30, 1996
Filed:
May. 16, 1995
Applicant:
Inventors:
Daniel W Volpenhein, Maineville, OH (US);
Elizabeth J Mueller, Cincinnati, OH (US);
Thomas J Hall, Cincinnati, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A46B / ;
U.S. Cl.
CPC ...
151671 ; 15110 ; 15DI / ;
Abstract
A toothbrush is provided for achieving improved interproximal cleaning without increasing gum irritation. The bristles of the toothbrush have a generally 'V' shaped side profile. In addition, the exposed ends of all of the bristles are properly end rounded. The dimensions and shape of the 'V' shape fall within a certain range, as does the stiffness of the bristles. These characteristics allow the bristles to penetrate into the interproximal areas with enough force to effectively clean these areas without causing irritation to the user's gums.