Title: Crop drying (food preserving) apparatus

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Claims: I claim:

1. Apparatus for preserving perishables comprising a heat pump for producing both heat and cold, means for supplying heat from said heat pump to a first container to preserve the contents therein, means for supplying cold from said heat pump to a second container to preserve the contents therein, and means for switching the heat and cold supplies to supply cold to said first container and heat to said second container to thereby preserve said perishables by alternate heating and cooling and to conserve energy by using both the heat and cold outputs of the heat pump to preserve perishables, the duration of time after which the switching takes place being such that the temperature of the perishables in the second container is effectively raised and the temperature of the perishables in the first container is effectively lowered.

2. Apparatus as in claim 1 and means for supplying heat from said heat pump to a third container to preserve perishables therein.

3. Apparatus as in claim 1 and means for supplying heat from said heat pump to a third container and cold from said heat pump to a fourth container to preserve perishables therein.

4. Apparatus as in claim 3 and means for switching said heat and cold supplies to supply cold to said third container and heat to said fourth container to preserve perishables therein.

5. Apparatus as in claim 1 and means for supplying cold from said heat pump to a third container to preserve perishables therein.

6. Apparatus as in claim 1 and means for supplying cold from said heat pump to a third container and heat from said heat pump to a fourth container to preserve perishables therein.

7. Apparatus as in claim 1 and means for supplying heat from said heat pump to a home or other building to be heated.

8. Apparatus as in claim 1 and means for supplying cold from said heat pump to a home or other building to be cooled.

9. Apparatus as in claim 1 wherein one of said containers serves as a heat sink to receive heat from said heat pump at times and to deliver up heat to said heat pump at other times, thereby conserving heat energy.

Other info:

Inventors: Thomason, Harry Emmitte (6802 Walker Mill Road, SE)

Application Number: 427313
Filing Date: 1973-12-21
Publication_date: 1976-06-29
Assignee:
Primary Class(es): 62/324.3 34/93, 34/428, 62/160, 62/238.1, 165/50
Other Classes:
US Patent Ref:

484182	Oct, 1892	Dewey	62/3.
1935281	Nov, 1933	Reed	62/178.
2282210	May, 1942	Plum	165/50.
2342566	Feb, 1944	Wolfert	62/324.
2412774	Dec, 1946	Hoffman	62/238.
2467464	Apr, 1949	Carriere	62/238.
2529154	Nov, 1950	Hammond	62/2.
2873585	Feb, 1959	Dodge	62/324.
2973627	Mar, 1961	Lackey	62/3.
3077079	Feb, 1963	Pietsch	62/3.
3181604	May, 1965	Kritzer	165/50.
3242679	Mar, 1966	Pucket	62/2.
3308633	Mar, 1967	Kritze, Jr.	62/239.
3351128	Nov, 1967	Barnd	165/50.
3354946	Nov, 1967	Dean	165/50.
3371504	Mar, 1968	Brindley	62/324.

Other Refs: 273,897

Jul, 1951	CH

Primary Examiner: Wayner, William E.
Assistant Examiner: Yuen, Henry C.
Attorney: