Title: Alarm for deep freezer

Abstract: An apparatus for intermittently sounding an audible alarm when the temperature within a deep freezer rises to a predetermined level which is less than the freezing temperature of most food products so that steps can be taken to prevent the food products from thawing. The apparatus includes a remote bulb element which intermittently opens and closes a container of liquefied gas which is permitted to expand and sound an alarm when the freezer malfunctions.

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Inventors: Ollis, Murrell W. (Bristol, TN, US)

Application Number: 571334
Filing Date: 1975-04-24
Publication_date: 1976-01-20
Assignee:
Primary Class(es): 116/103 62/125, 62/129, 116/70, 236/94
Other Classes:
US Patent Ref:

2993466	Jul, 1961	Sklaroff et al.	116/103.
3461834	Aug, 1969	Linder	116/112.
3590770	Jul, 1971	Wagner	116/103.

Other Refs:
Primary Examiner: Queisser, Richard C.
Assistant Examiner: Rasco, Marcus S.
Attorney: Dowell, Jr.; A. Yates