Robert Geoffrey Pitts

US Patent:

52839249, Feb 8, 1994

Filed:

Mar 11, 1993

Appl. No.:

8/029843

Inventors:

John A. Kaminski - Newark CA
Mingchih M. Tseng - Hingham MA
Adrian Hart - Menlo Park CA
Christopher H. Suhonen - Providencia Santiago, CL
Robert G. Pitts - Half Moon Bay CA

Assignee:

Gillette Canada, Inc. - Kirkland

International Classification:

A61C 1500
A46B 308

US Classification:

152441

Abstract:

An interdental foam brush with an elongate non-conductive, galvanic shock free stem having a boss, the stem having a brush support portion extending from the boss in the distal direction to a preferably rounded distal tip and a flexible handle engaging portion extending from the boss in the proximal direction. The brush support portion including its distal tip and the boss being enclosed in resilient, open-cell polymeric foam. The outer surface of the brush is tapered and converging in the distal direction. The boss is a stop means for limiting movement of the brush portion between interdental surfaces, and the brush support portion has a length approximating the width of a rear molar. The brush support portion has a diameter providing a brush support surface for effective cleaning while permitting passage of the brush between interdental surfaces. The foam has a hardness and pore density providing effective cleaning between interdental surfaces is achieved.