A radio antenna having radiating conductors () which can be connected together by the action of antenna switch modules (), whereby the electrical length of said antenna can be changed. Power and control signals to said antenna switch modules, are conducted from the antenna controller () through the feed line (), and said radiating conductors. The radiating direction of said antenna can be changed by a directional switch module (), which receives power and control signals through said feed line from a directional control circuit (). Thus said antenna can be tuned for a plurality of frequency bands, and the radiating direction can be changed, by remote control.
Ronald D. Lemke - Huron OH Ramesh M. Gunawardena - Solon OH James G. Weit - Milan OH
Assignee:
Stein, Inc. - Sandusky OH
International Classification:
A23L 300 A47J 2716
US Classification:
99468
Abstract:
The method and apparatus of the invention describes an oven having a housing formed by an enclosure, the enclosure having a cooking chamber in a portion thereof. The oven housing may also include an inlet and outlet positioned in predetermined relationship to the cooking chamber and a conveyor belt on which food products to be cooked are positioned. The conveyor belt travels through the oven housing from the inlet to the outlet and defines over a separate portion thereof a conveyance path through the cooking chamber. The oven further includes at least a source of steam for creating a cooking atmosphere in the cooking chamber. The cooking chamber of the oven is defined at its lower limit by the level of steam within the housing and the inlet and outlet are positioned below this lower limit to maintain the steam within the cooking chamber. In this manner, the escape of steam from the cooking chamber is substantially prevented or controlled. There may also be provided a temperature or steam sensing or measuring system, which can be used to maintain the desired steam atmosphere within the cooking chamber.
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James G. Weit President
Mac Instruments Computer Software · Machinery · Mfg of Control Instruments · Relay & Industrial Control Mfg · Industrial Instrumentation (Mf