Boots – shoes – and leggings
Patent
1979-06-05
1981-12-22
Atkinson, Charles E.
Boots, shoes, and leggings
73291, 73432R, 235 92MT, 235 92T, G07C 110, G06F 1542
Patent
active
043074499
ABSTRACT:
An electronic time-counter for diving including a device ensuring its automatic switching on under the action of the water during its immersion and a unique control element manually operable and arranged in such a way that its operation produces the reset to zero of the display device so as enable the diver to measure the intermediary time durations between the beginning and the end of a dive. This counter includes moreover a first memory circuit recording the time which has elapsed between the automatic switching on of the counter at the moment of its immersion and the first operation of the control element. This counter further includes second memory circuit recording the total duration of the dive between the automatic switching on of the counter at the moment of its immersion and its automatic releasing or switching off at the moment of its emersion.
REFERENCES:
patent: 3911360 (1975-10-01), Kimzey
patent: 3942167 (1976-03-01), McClintock
patent: 3969635 (1976-07-01), Wilke
patent: 3978463 (1976-08-01), Kerscher
patent: 3992948 (1976-11-01), D'Antonio et al.
patent: 4005282 (1977-01-01), Jennings
patent: 4054783 (1977-10-01), Seireg et al.
patent: 4107995 (1978-08-01), Ligman et al.
patent: 4109140 (1978-08-01), Etra
patent: 4192001 (1980-03-01), Villa
Atkinson Charles E.
Chin Gary
Montres Rolex S.A.
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