Adjustable toothbrush

Details Adjustable toothbrush Adjustable toothbrush

1988-03-23

1989-10-24

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Implements

Particular handle

151671, 15172, 151761, 403 84, A46B 702, B25G 106

Patent

active

048752487

ABSTRACT:
A toothbrush handle with a hollow area through which a rotatable shaft passes has a soft rubber member surrounding the shaft. A thumb-operated gear ring is secured to the rubber and the assembly is disposed in a chamber of the handle so that the ring is accessible through an opening in the outer shell of the handle. The inner chamber surface has teeth which engage the teeth on the ring and maintain it in place when the ring is pressed to displace the rubber and attached ring against the chamber teeth which prevents the shaft from being rotated when a desired angular positon of the handle and brush is achieved.

REFERENCES:
patent: 490831 (1893-01-01), Lohers
patent: 645803 (1900-03-01), Good
patent: 1859129 (1932-05-01), Costenbader
patent: 2719998 (1955-10-01), Hibbs
patent: 3868742 (1975-03-01), Brenner
patent: 3886618 (1975-06-01), Paoletti
patent: 4106152 (1978-08-01), Hadary
patent: 4592109 (1986-06-01), Borea et al.

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