Boots – shoes – and leggings
Patent
1984-06-11
1987-02-10
Chin, Gary
Boots, shoes, and leggings
364558, 441 41, G06F 1520, G01N 700
Patent
active
046427830
ABSTRACT:
A life raft testing device comprising an arrangement of transducer sensors; connectors between the transducers and the life raft desired to be tested; processors electrically connected to the transducer sensors; a controller electrically connected to and interactive with the processors; and a display of the electrical output. The transducer sensors comprise a pressure transducer, a temperature transducer, and a load cell transducer. The temperature transducer is positioned generally adjacent to the nozzle of the life raft. The processors of the present invention comprise a multiplexer electrically connected to the transducer sensors, a differential amplifier electrically connected to the multiplexer, and a sample/hold amplifier electrically connected between the analog-to-digital converter and the differential amplifier. The controller comprises an input/output keyboard connected to the processors through an RS-232 communication line. The output display is a video display terminal and/or a serial type line printer. The controller includes the means to execute a raft protocol under program control communicating commands to and data from the processor means.
REFERENCES:
patent: 2683030 (1954-07-01), Caule
patent: 4038532 (1977-07-01), Burris et al.
patent: 4143545 (1979-03-01), Sitabkhan
patent: 4234926 (1980-11-01), Wallace et al.
patent: 4551795 (1985-11-01), Fisher et al.
Alexander William B.
Frenger Paul
Chin Gary
Safe-Test, Inc.
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