Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1985-10-10
1987-09-29
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
33366, 200 6152, 200DIG29, G08B 2100, H01H 3502
Patent
active
046971742
ABSTRACT:
There are many instances, specifically supportated offshore platforms, where the initiation of catastrophic tilting should be detected and personnel warned. Conventional tilt detection switches, while capable of detecting a tilt condition, are prone to false alarms due to minor deviations from normal conditions. The disclosed system employs a free rolling ball member on a normally horizontal planar surface. This surface is divided into regions by elongated protuberances which separate the ball from a switch capable of being closed by contact with the ball. The ball is prevented from actuating the switch on the occurrence of minor deviations of the planar surface by the protuberances, but upon substantial tilting, the switch can be actuated by the ball rolling over the protuberances and contacting the switch.
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Mullen Jr. Thomas J.
Swann III Glen R.
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