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US 5,690,549 AGranted
Roof for a vehicle cab
AssigneeNew Holland North America, Inc.
InventorsStephen M. Webb, Robert Samuel David Whybro
Life of this patent
Estimating the term…
Abstract
A roof for the cab of vehicle is constructed with a hollow plastic body that is molded in one piece with a blower and a heat exchanger fitted to the hollow body. The hollow body defines a cavity that forms an air duct through which air for ventilating the cab is ducted. Shuttered external and internal air intake vents allow the selection between fresh air from externally of the cab and recirculated air from within the cab. A well open through the roof provides an emergency exit from the vehicle cab.
Claims11
A roof for the cab of a vehicle, comprising:
- a hollow plastic body that is molded in one piece and defining a cavity therein, said plastic body including an inner partition wall extending between an upper roof surface and a lower roof surface, the cavity being formed as a toroid surrounding the partition wall;
- and
- a blower and heat exchanger fitted to the hollow body, the cavity within the hollow body forming an air duct through which air for ventilating the cab is ducted.
A roof for the cab of a vehicle comprising:
- a hollow body having spaced upper and lower walls defining a cavity, said body having at least one opening in communication with the ambient air;
- a partition wall extending between the upper and lower walls and defining a well open into the cab, said cavity being formed as a toroid surrounding the partition wall;
- a blower mounted on the partition for drawing air from the cavity of the hollow body and delivering the air into the vehicle cab by way of the well;
- and
- a heat exchanger mounted within the well for selectively heating and cooling the air blown by the blower.
2 more elements
Dependencies are inferred from the claim text.