Title: Ultrasonic toothbrush applicator

Abstract: This invention relates to the method of manufacturing a toothbrush adapted to be mounted on an automatic toothbrush power handle, and having as a power source vibratory energy in the ultrasonic range. The manufacturing process includes that of providing a plastic brush having a head portion including a plurality of apertures and positioning a bristle cluster respectively in each aperture; and effecting a flow of the plastic in the head portion into substantially surrounding relationship of the bristles in each aperture therein, such that the plastic solidifies in adhesive relationship to the bristles to transmit the ultrasonic vibratory energy from the brush head portion to the bristles.

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Inventors: Balamuth, Lewis (Southampton, NY, US)
Rutten, Michael R. (East Islip, NY, US)
Meyer, Robert (Huntingdon Station, NY, US)

Application Number: 477306
Filing Date: 1974-06-07
Publication_date: 1976-03-02
Assignee: Ultrasonic Systems, Inc. (Farmingdale, NY)
Primary Class(es): 300/21 15/22.1
Other Classes:
US Patent Ref:

1238635	Aug, 1917	Chandler et al.	300/21.
2390437	Dec, 1945	Hayes	300/21.
2558334	Jun, 1951	Baumgartner	300/21.
2587792	Mar, 1952	Von Sivers	300/21.
2878069	Mar, 1959	Wesse, Jr.	300/21.
3086820	Apr, 1963	Baumgartner	300/21.

Other Refs:
Primary Examiner: Custer, Jr., Granville Y.
Assistant Examiner:
Attorney: