Heat storage and delivery apparatus

A heat storage apparatus comprising:

• a rectangular shaped container,
• delivery and return passages in said container, said passages being adapted to be connected in communicating relation with a heat generator to permit heated air to be circulated between the heat generator and container,
• an inlet and an outlet in said container intercommunicating the interior of the container with the exterior, said inlet being connected in communicating relation with said return passage,
• heat collecting chamber means in said container, a plurality of elongate heat storage rods positioned in said heat collecting chamber means and arranged in side-by-side relation with respect to each other,
• charging and delivery means in said container being operable in a first mode of operation when energized to cause heated air to be directed from the heat generator into the delivery passage of the container, and being operable in a second mode of operation to cause unheated external air to be directed into the container through the inlet into the return passage,
• first valve means between the delivery passage and said heat collecting chamber being operable when said charging and delivery means is energized to cause heated air drawn from the heat generator into the delivery passage into said heat collecting chamber over said rods and thereafter into the return passage for return to the heat generator whereby heat exchange action occurs between the heated air and heat storage rods so that heat is stored in the latter,
• means defining an interconnecting passage between said charging and delivery means and said heat collecting chamber being operable to cause the air directed into the heat collecting chamber from the charging and delivery means to be uniformly distributed over the heat storage rods,
• air control means between the charging and delivery means and the heat collecting chamber being operable when the charging and delivery means is in the second mode of operation to direct the unheated air through the heat collecting chamber and over the heat storage rods whereby the air will be heated and then directed by the charging and delivery means through the outlet into the exterior, and
• control means including the circuitry arranged in controlling relation with respect to said charging and delivery means, first temperature responsive means in said circuitry being operable in response to the temperature within the heat generator reaching a predetermined magnitude to energize the charging and delivery means in said first mode of operation to direct heated air from the heat generator into the heat collecting chamber, additional heat responsive means in said circuitry being operable to energize the charging and delivery means in said second mode of operation only when the temperature within the collecting chamber reaches a predetermined temperature and when the external temperature outside the cabinet reaches a predetermined temperature to cause outside unheated air to be directed into the inlet over the heat storage rods to heat the air, and thereafter discharge the heated air to the exterior.

A heat storage apparatus comprising:

• a rectangular shaped container,
• delivery and return passages in said container, said passages being adapted to be connected in communicating relation with a heat generator to permit heated air to be circulated between the heat generator and container,
• an inlet and an outlet in said container intercommunicating the interior of the container with the exterior, said inlet being connected in communicating relation with said return passage,
• heat collecting chamber means in said container, a plurality of elongate heat storage rods positioned in said heat collecting chamber means and arranged in side-by-side relation with respect to each other,
• a charging blower in said container being operable when energized to cause heated air to be directed from the heat generator into the delivery passage of the container,
• first valve means between the delivery passage and said heat collecting chamber and being operable when said charging blower is energized to cause heated air drawn from the heat generator into the delivery passage into said heat collecting chamber over said rods and thereafter into the return passage for return to the heat generator whereby heat exchange action occurs between the heated air and heat storage rods so that heat is stored in the latter,
• means defining an interconnecting passage between said charging blower and said heat collecting chamber being operable to cause the air directed into the heat collecting chamber from the charging blower to be uniformly distributed over the heat storage rods,
• a delivery blower in said container spaced from said charging blower, and when energized causing external unheated air to be drawn into the container through the inlet into said return passage,
• air control means between the delivery blower and the heat collecting chamber being oeprable when the delivery blower is energized to direct the unheated air through the heat collecting chamber and over the heat storage rods whereby the air will be heated and then directed by the delivery blower through the outlet into the exterior,
• and control means including the circuitry arranged in controlling relation with respect to said charging and delivery blowers, first temperature responsive means in said circuitry being operable in response to the temperature within the heat generator reaching a predetermined magnitude to energize the charging blower to direct heated air from the heat generator into the heat collecting chamber, additional heat responsive means in said circuitry being operable to energize the delivery blower when the temperature within the collecting chamber reaches a predetermined temperature to cause outside unheated air to be directed into the inlet over the heat storage rods to heat the air, and thereafter discharge the heated air to the exterior.