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Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

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Class 432/39 - Of selection or load balancing of furnace exhaust heated regenerators


Subclass of Class 432 - Heating
Definition: Apparatus in which the means responding to a sensed condition
No. of patents: 6
Last issue date: 06/19/2007


NumberTitleIssue Date
7231780Damper device for refrigerator
A damper device for a refrigerator has a step motor used as the power source for rotating a baffle to open/close the cold air passage of the refrigerator in a more secured manner. The damper device for a refrigerator includes a frame installed in the cold air passag...
06/19/2007
6261093Heat regenerative oxidizer and method of operation
The present invention relates to regenerative thermal or catalytic oxidizers and methods of operation thereof for oxidizing combustible components of feed gas mixtures. In accordance with the disclosed invention, operation of the heater used to supply sup...
07/17/2001
5630714Process for controlling combustion of burners in furnace and an apparatus therefor
A process for controlling combustion of burners arranged in a plurality of respective control zones divided in a furnace, includes the step of repeating a cycle of successively subjecting the burners to combustion for a short time. At least one temperatur...
05/20/1997
5419388Regenerative heat exchanger system and an operating method for the same
A regenerative heat exchanger system includes a heat accumulator provided in an insulating vessel for accumulating heat energy, the heat accumulator having a first end and a second end opposing to the first end and being capable of permitting gas to flow ...
05/30/1995
4141797Method of operating a battery of coke ovens
The operation of a battery of coke ovens with regenerative change of draught on heating flues includes adjustably controlling the combustion of gases in the heating flues to insure uniform vertical heating of the coking coal in the coke oven chambers. Con...
02/27/1979
4102636Furnace with heat exchanger flow control
An industrial heating furnace wherein hot exhaust gases from the furnace are heat exchanged in a rotary ceramic heat exchanger with air which is supplied to burners in the furnace for combustion air. The temperature of the gases within the furnace is cont...
07/25/1978
 
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