Handheld heating tool

Details Handheld heating tool Handheld heating tool

2006-05-18

2009-08-04

Robinson, Daniel L (Department: 3742)

Electric resistance heating devices

Heating devices

Radiant heater

C219S405000

Reexamination Certificate

active

07570875

ABSTRACT:
A handheld heating tool has a pair of elliptical reflectors with the major axes of the ellipses being at an acute angle to each other and intersecting in a focal region including one focus of each ellipse. A pair of incandescent bulbs are mounted so that each bulb filament is at the other focus of one of the elliptical reflectors. Thus, radiant energy from both bulbs is concentrated at the focal region. This focal region lies in a channel at the front of the housing of the tool. An object to be heated lying in the channel receives radiant energy from the lamps and reflectors. A blower directs cooling air toward the reflectors and along different paths within the housing to exit through the channel. One such path is between the outside of the reflectors and adjacent reflector shields.

REFERENCES:
patent: 3831289 (1974-08-01), Knight
patent: 6002110 (1999-12-01), Sikka et al.
patent: 6426486 (2002-07-01), Bartok

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