Girth monitoring belt

Details Girth monitoring belt Girth monitoring belt

1988-04-28

1989-07-11

Apley, Richard J.

Undertaking

272DIG5, 128721, 128782, 340573, 340574, 340668, A63B 1106, A63B 7100

Patent

active

048464627

ABSTRACT:
A girth monitoring belt includes a belt (12) and buckle (18) connected in series with a control enclosure (20). The control enclosure (20) includes a pair of springs (28) connected at one of their ends to the control enclosure (20) and connected at their other ends to an arm (34) which extends from within the enclosure (20) to outside the enclosure where it is connected to the belt (12). As a wearer's abdominal muscles expand, the springs (28) expand allowing the arm to slide along the enclosure (20). An electronic control circuit (38, 40) senses movement of the arm (34) past a predetermined set point which actuates an alarm (42, 43) indicating to the wearer of the undersirable condition so that the wearer will contract his muscles and allowing the springs (28) to contract moving the arm (34) within the predetermined set point turning off the alarm (42, 43). The predetermined set point is manually adjustable to vary the overall sensitivity to the amount of movement allowed.

REFERENCES:
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patent: 3642276 (1972-02-01), Kropf
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patent: 4706071 (1987-11-01), Lin
patent: 4750480 (1988-06-01), Jenness
Schematic Symbols by Rudolf F. Graf, p. 686 of Radio Shack Dictionary of Electronics, Fourth Edition, Third Printing-1975.

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