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. 20, 1991
Filed:
Mar. 16, 1989
George G Michaels, Atherton, CA (US);
Other;
Abstract
A toothbrush head which is effective for cleaning and polishing teeth and massaging and stimulating the gums, without injury to hard and soft tissue and is durable. The head includes a plurality of integral projections parallel to each other and extending outwardly from a pad. Each projection is constructed of a thermoplastic elastomer providing a high coefficient of friction between the projections and tooth enamel and cementum. The tip and side surfaces of the projections have substantially identical coefficients of friction between the respective surfaces and the tooth's enamel/cementum. At least a portion of the plurality of projections have beveled edges. The projections having beveled edges are preferably arranged in pairs. Each projection of each pair has a beveled edge oriented so as to be positioned in facing relationship with the other projection of the pair. The pairs are configured as facing truncated cylinders. A lip surrounds the perimeter of the head and serves as a bumper in order to protect the gums during brushing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile