Apparatus for measurement of water conditions in a watermattress

Thermal measuring and testing – Temperature measurement – Combined with diverse art device

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374150, 5451, G01K 114

Patent

active

046377379

ABSTRACT:
An apparatus for measuring water temperature includes a temperature measuring instrument with a stem that is introduced into a water-filled mattress through a closure member positioned in the filler spout. The closure member and the temperature measuring instrument are secured in sealing relationship to the spout to form a blunt-ended cap therefor. The apparatus includes a cylindrical stopper that fits closely around an inside wall of the filler spout, a quantitative measuring instrument which includes a sensing stem and a crystal fitting over the end of the stopper and the filler spout for observing the measurements sensed by the instrument, and an annular hold-down member that runs around the crystal and the filler spout to secure the stopper in sealing relationship therewith.

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