Electric resistance heating devices – Heating devices – Concentrated heated air stream
Patent
1990-05-17
1993-03-16
Bartis, Anthony
Electric resistance heating devices
Heating devices
Concentrated heated air stream
34 97, 34243R, 2003182, 219240, 219533, H05B 102, F24H 304, A45D 2010, H01H 906
Patent
active
051951649
ABSTRACT:
An electric hot air blower has a casing having a discharge portion containing a heating element and variable speed motor driven air blower and provided with a pistol grip handle for manipulation of hot air blower. A pair of pivotally mounted triggers frontally positioned in vertically spaced relationship in the center of the pistol grip handle selectively operate respective ones of a pair of spring-biased open incremental switches disposed in the handle for variably controlling the air blower motor speed in concert with the intensity of the heating element. The triggers are lockable in a selected position between an off and the maximum position of the incremental switch actuated thereby by a releasable locking button engageable with locking teeth on the trigger.
REFERENCES:
patent: 3378662 (1968-04-01), Sorenson
patent: 3781579 (1973-12-01), Rosenthal et al.
patent: 4003388 (1977-01-01), Nopanen
patent: 4013083 (1977-03-01), Helbling
patent: 4196343 (1980-04-01), Han
patent: 4271342 (1981-06-01), Sistare
patent: 4296290 (1981-10-01), Peot
patent: 4683369 (1987-07-01), Rieckman et al.
patent: 4711988 (1987-12-01), Thaler et al.
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