Pressure-sensing toothbrush holder

Details Pressure-sensing toothbrush holder Pressure-sensing toothbrush holder

1985-09-10

1987-07-21

Reynolds, Wm. Carter

Brushing, scrubbing, and general cleaning

Implements

Combined

15167R, 128776, 116202, 116212, A47B 904

Patent

active

046808256

ABSTRACT:
A device for sensing the amount of force applied to teeth during brushing. The device consists of a single toothbrush holder in which a toothbrush is pivotally supported by means of teeth and spring rib. A metal spring is arranged to provide an adjustable resistance force against pivotal movement of the toothbrush. A conventional light pen is employed to sense and indicate the pivotal movement.

REFERENCES:
patent: 2877477 (1959-03-01), Levin
patent: 3256031 (1966-06-01), Fillweber
patent: 3493991 (1970-02-01), De Bianchi
patent: 4253212 (1981-03-01), Fujita
patent: 4340069 (1982-07-01), Yeaple
patent: 4450599 (1984-05-01), Scheller et al.
patent: 4476604 (1984-10-01), White
Allen and Nahodil, A Transducer for Measuring the Force Exerted on Teeth by a Toothbrush During Brushing, J. Dent. Res. Supplement to No. 5, p. 1272.

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