Clock

Details Clock Clock

2006-04-18

2006-04-18

Bradley, P. Austin (Department: 2841)

Horology: time measuring systems or devices

Time interval

Gravity actuated type

Reexamination Certificate

active

07029168

ABSTRACT:
A mechanical clock has a driving element and a braking element. The braking action of the braking element is based on a hydrostatic gradient of at least one flowable medium. The driving element exerts a first torque on a first shaft extending along a first axis, and the braking element exerts a second torque on the first shaft, with the second torque being opposed to the first torque. The braking element has at least one drum which is rotatable around a second axis and in which the flowable medium is located.

REFERENCES:
patent: 2749700 (1956-06-01), Seligman
patent: 4028877 (1977-06-01), Vatterott
patent: 4262348 (1981-04-01), Hess
patent: 4372688 (1983-02-01), Chatten
patent: 4455094 (1984-06-01), Russell
patent: 31 35 859 (1983-03-01), None

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