1
Kenneth G Junkert, Henry P Voznick: Infrared thermometers for minimizing errors associated with ambient temperature transients. Wahl Instruments, Freilich Hornbaker Rosen & Fernandez, February 2, 1988: US04722612 (81 worldwide citation)

A thermopile detector means for a temperature measuring instrument physically and electrically configured to supply an output signal which indicates target temperature substantially independent of the influence of ambient temperature changes. The detector means includes a first thermopile device exp ...


2
Henry P Voznick: Thermocouple surface probe. Wahl Instruments, Gausewitz Carr Rothenberg & Edwards, June 12, 1984: US04454370 (45 worldwide citation)

A pair of resilient side-by-side elongated coils of different thermocouple material are mounted in a ceramic housing and project forwardly with their forward ends connected to form a thermocouple junction that is adapted to be pressed against a surface of which temperature is to be measured. A retra ...


3
Kenneth G Junkert, Henry P Voznick: Noncontact temperature measuring device. Wahl Instruments, Freilich Hornbaker Rosen & Fernandez, June 26, 1984: US04456390 (44 worldwide citation)

A portable, battery operated noncontact temperature measuring device including a lens for collecting infrared radiation and a thermopile for producing a signal indicative of the intensity thereof. The thermopile signal is amplified, linearized and summed with an ambient temperature signal derived fr ...


4
Henry P Voznick: Multiple probe temperature measuring system and probes therefor. Wahl Instruments, Gausewitz Carr Rothenberg & Edwards, March 13, 1984: US04436438 (25 worldwide citation)

The platinum resistive sensor of a temperature measuring surface probe has a resistance greater than the resistance to which the associated meter is calibrated. This provides a compensation that is a function of temperature and decreases errors due to heat loss from the probe. An immersion probe hav ...


5
Bruce C Johnson: Compensating infrared thermopile detector. Wahl Instruments, Freilich Hornbaker & Rosen, December 9, 1997: US05695283 (20 worldwide citation)

A thermopile detector for a temperature measuring instrument physically and electrically configured to supply an output signal which indicates a target temperature substantially independent of the influence of ambient temperature changes. The detector is comprised of a plurality of interleaved and e ...


6
William Wahl, Kenneth G Junkert: Soldering iron testing method and apparatus. Wahl Instruments, Freilich Hornbaker Rosen & Fernandez, October 31, 1989: US04878016 (5 worldwide citation)

A method and apparatus for testing three wire handheld soldering irons by touching the iron's tip to a single point sensor to measure (1) tip temperature (2), tip voltage to ground and (3) tip resistance to ground.