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Publication numberUS3394257 A
Publication typeGrant
Publication dateJul 23, 1968
Filing dateJul 27, 1965
Priority dateAug 29, 1964
Publication numberUS 3394257 A, US 3394257A, US-A-3394257, US3394257 A, US3394257A
InventorsKurt Moldenhauer
Original AssigneeHartmann & Braun Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Gas-tight source unit for infrared gas analyzer having heat dissipating means
US 3394257 A
Abstract  available in
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Description  (OCR text may contain errors)

July 23, 1968 3,394,257


Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2525638 *Mar 5, 1946Oct 10, 1950Polaroid CorpLight filter transparent to infrared radiation and opaque to visible light
US2827539 *Jul 7, 1955Mar 18, 1958Phillips Petroleum CoRadiation source
US3275874 *May 11, 1962Sep 27, 1966Jennings Radio Mfg CorpElectrically energized heat radiator
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4724329 *Oct 6, 1983Feb 9, 1988Laser Precision CorporationHigh efficiency radiation source for infrared spectrometry
US4922108 *May 3, 1988May 1, 1990Leybold AktiengesellschaftInfrared radiation source, especially for a multi-channel gas analyzer
US5247185 *Oct 28, 1991Sep 21, 1993Critikon, Inc.Regulated infrared source
US6308008 *Jun 25, 1998Oct 23, 2001Kanthal AbIR-source with helically shaped heating element
US7280749 *Feb 12, 2002Oct 9, 2007Ion Optics, Inc.Filament for radiation source
US20020122663 *Feb 12, 2002Sep 5, 2002Loges Peter G.Filament for radiation source
DE102005020131B3 *Apr 30, 2005May 11, 2006Dräger Safety AG & Co. KGaAGas sensor for detecting combustible gases comprises a gas duct consisting of a metal plate with holes in which metal pins are fused in glass inserts
EP0332749A2 *Nov 12, 1988Sep 20, 1989Rosemount GmbH & Co.Infra-red radiation source, especially for a gas analysis apparatus having multiple channels
EP0332749A3 *Nov 12, 1988Mar 6, 1991Rosemount GmbH & Co.Infra-red radiation source, especially for a gas analysis apparatus having multiple channels
WO1993009412A1 *Oct 12, 1992May 13, 1993Critikon, Inc.Regulated infrared source
U.S. Classification250/343, 392/416, 313/113, 392/421, 250/504.00R, 313/111
International ClassificationH01K1/58, H01K1/00, H05B3/00, H01K7/00
Cooperative ClassificationH01K7/00, H01K1/58, H05B3/0033
European ClassificationH01K1/58, H05B3/00L, H01K7/00