Electric heating – Heating devices – Tool or instrument
Patent
1980-07-11
1982-11-09
Bartis, A.
Electric heating
Heating devices
Tool or instrument
15339, 15415R, 219 74, 21913741, 228 20, 228 57, H05B 100, B23K 300, A47L 902
Patent
active
043586627
ABSTRACT:
An electric soldering iron having an elongated heater barrel extending from a handle and a soldering tip projecting from the end of the barrel is provided with a thermally isolated fume exhausting attachment positioned coaxially of the barrel and surrounding the tip for withdrawing objectionable fumes, gases, smoke and other air-borne contaminants from the soldering site. The attachment includes a metallic shell having a forward hood portion, overlying the tip and forming a fume exhaust chamber connected to a vacuum source by an exhaust conduit including a flexible transparent plastic tube portion, and a rearward slotted clamping portion secured to the front end of the barrel by a clamping ring. A compressible thermally insulative sleeve of alumina silicate fibers is interposed between the clamping portion and the barrel for thermally insulating the attachment from the heated barrel to preclude burn injury to the user of the iron. The withdrawn fumes are initially cooled by mixing with ambient air in the hood portion and the fumes are further cooled during passage through the exhaust tube so that the temperature of the fume-air mixture is below the which would cause a burn should the exhaust conduit be contacted by the user. However, the temperature of the fume-air mixture is maintained at a sufficient level to minimize condensation and agglomeration of flux material on the walls of the exhaust conduit.
REFERENCES:
patent: 1871009 (1932-08-01), Righter
patent: 2041018 (1936-05-01), Persons
patent: 2184980 (1939-12-01), Smith
patent: 2522482 (1950-09-01), Olzak
patent: 3689732 (1972-09-01), Hill
patent: 3798409 (1974-03-01), Troyer et al.
patent: 3803381 (1974-04-01), Bernard et al.
patent: 3838240 (1974-09-01), Schelhorn
patent: 3886344 (1975-05-01), Frantzreb et al.
"Design of a Solder Vapor Removal System" by Peter Hamiton, et al., Senior Engineering Design Project, Mechanical Engineering Department, University of Texas at Austin, Austin Texas, Aug. 4, 1978.
Cranor Benny D.
Runyon Robert C.
Bartis A.
Miller R. P.
Western Electric Company Inc.
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