Single hand timepiece with sinusoidal display

Details Single hand timepiece with sinusoidal display Single hand timepiece with sinusoidal display

1992-11-13

1994-01-18

Roskoski, Bernard

Horology: time measuring systems or devices

Displays or display device details

Dial or hand

368238, 368223, G04B 1904

Patent

active

052804615

ABSTRACT:
A timepiece is provided in the form of a body having a face which displays a sinusoidal path of multiples of twelve wavelengths within a circular periphery, and concentric rings on the face which intersect the path. An arm rotates about the center of the face a rate of one revolution per every twelve hours. A time-indicating pointer, mounted for guided longitudinal movement with respect to the arm, reciprocates with respect to the arm at one cycle per hour. The combined rotation of the arm and reciprocation of the pointer cause the pointer to follow the sinusoidal path, such that the pointer indicates hours by its circumferential position relative to the crests of the wavelengths and indicates minutes by its radial position relative to the concentric rings.

REFERENCES:
patent: 4991154 (1991-02-01), Perucchi
patent: 5103434 (1992-04-01), Sullivan
patent: 5111439 (1992-05-01), Erard
patent: 5134596 (1992-07-01), Harris
patent: 5172350 (1992-12-01), Walen et al.
patent: 5208790 (1993-05-01), Sato

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