Electric resistance heating devices – Heating devices – Convection space heater
Reexamination Certificate
2005-12-06
2005-12-06
Jeffery, John A. (Department: 3742)
Electric resistance heating devices
Heating devices
Convection space heater
C392S360000, C392S368000
Reexamination Certificate
active
06973260
ABSTRACT:
A portable electric heater producing a vertically oriented, heated exhaust air stream at an elevation above a support surface is provided. A base contacting the support surface and supporting an elongate housing in a substantially vertical position from the support surface. An inlet opening allows air to enter the interior of the housing and a vertically oriented outlet opening allows a heated exhaust air stream to exit the housing. An air blower assembly and elongate electric heating element are disposed within the housing. The air blower assembly has a substantially vertically oriented axis of rotation and the electric heating element is substantially vertically oriented proximate the outlet opening. The flow of the exhaust air stream from the air impeller assembly toward the vertically oriented elongate electric heating element is a substantially direct and straight vector and substantially all of the exhaust air stream passes through the electric heating element.
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Beideman Gary S.
Orr Paul W.
Jeffery John A.
Lasko Holdings Inc.
Woodcock & Washburn LLP
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