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:
Jan. 03, 1995
Filed:
Feb. 07, 1992
David Giuliani, Mercer Island, WA (US);
Roy W Martin, Redmond, WA (US);
GEMTech, Inc., Bellevue, WA (US);
Abstract
The dental hygiene apparatus includes a body portion (12) from one end of which extends a elongated resonator arm (32). The arm (32) is mounted for oscillating action about a torsion pin (38), by means of a electromagnet (16) in the body acting in combination with two permqanent magnets (34, 35) which are mounted on the rear end (31) of the resonator arm (32). On the forward end (44) of the resonator arm (32) is mounted a set of bristles (47). The arm (32) is driven such that the tips of the bristles operate within ranges of amplitude and frequency to produce a bristle tip velocity greater than 1.5 meters per second, producing a significant cleansing effect beyond the tips of the bristles.