Cold storage room thermometer and back-up power supply

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

374170, 62127, 307 66, 340585, G01K 108

Patent

active

046472231

ABSTRACT:
An electrically operated thermometer for a cold storage room is normally supplied with current from the secondary winding of a transformer, the primary winding being connected to a conventional alternating current source. A battery is alternatively connected to the thermometer through a manual switch, which is preferably of the momentary type, which must be held engaged.

REFERENCES:
patent: 1604265 (1926-10-01), Dosbaugh
patent: 1770055 (1930-07-01), Williams
patent: 2326070 (1943-08-01), Schaelchun et al.
patent: 2447893 (1948-08-01), Bauman
patent: 2534542 (1950-12-01), Bower
patent: 2729750 (1956-01-01), Draper et al.
patent: 2740953 (1956-04-01), Jeppesen
patent: 3322964 (1967-05-01), Walter et al.
patent: 3340402 (1967-09-01), Curtis
patent: 3689888 (1972-09-01), Wootton
patent: 3720839 (1973-03-01), Spahr
patent: 3753259 (1973-08-01), Donovan
patent: 3816752 (1974-06-01), Goodwin
patent: 3959787 (1976-05-01), Messmann et al.
patent: 4138670 (1979-02-01), Schneider et al.
patent: 4251813 (1981-02-01), Carre
patent: 4298947 (1981-11-01), Tamura et al.
patent: 4319228 (1982-03-01), Daniels
patent: 4387368 (1983-06-01), Day, III et al.
patent: 4387578 (1983-06-01), Paddock
patent: 4482785 (1984-11-01), Finnegan et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Cold storage room thermometer and back-up power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cold storage room thermometer and back-up power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cold storage room thermometer and back-up power supply will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1014457

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.