Heating systems – Heat and power plants – Vehicle
Reexamination Certificate
2005-04-05
2005-04-05
Boles, Derek S. (Department: 3749)
Heating systems
Heat and power plants
Vehicle
C237S01230B, C237S00200B, C165S041000, C165S042000
Reexamination Certificate
active
06874695
ABSTRACT:
There are situations in which an operator remains in an operator station of a work machine when an engine of the work machine is inactive. The present invention includes a control system for, and a method of, heating the operator station when the engine is inactive. A heating system of the work machine includes an electrically-powered coolant pump, a power source, and at least one piece of warmed machinery. An operator heat controller is moveable between a first and a second position, and is operable to connect the electrically-powered coolant pump to the power source when the engine is inactive and the operator heat controller is in the first position. Thus, by deactivating the engine and then moving the operator heat controller to the first position, the operator may supply electrical energy to the electrically-powered coolant pump, which is operably coupled to heat the operator station.
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Akasam Sivaprasad
Baker Thomas M.
Hoff Brian D.
Boles Derek S.
Caterpillar Inc
Liell & McNeil
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