Heating Of Object Or Material Patents (Class 250/341.6)
  • Melting point determination apparatus and method
    Patent number: 6231228
    Abstract: A device and method is disclosed for determining the melting point of a sample material utilizing an infrared thermometer to measure the indicated temperature of the sample material while under pressure as such sample material is being heated. Upon melting, the sample material is substantially displaced from the field of view of the infrared thermometer by the force of the applied pressure, resulting in a spike in the sensed temperature.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: May 15, 2001
    Inventor: Gregory R. Brotz
  • Solid-state non-invasive infrared absorption spectrometer for the generation and capture of thermal gradient spectra from living tissue
    Patent number: 6198949
    Abstract: A solid-state spectrometer for the non-invasive generation and capture of thermal gradient spectra from human or animal tissue. The spectrometer includes an infrared transmissive thermal mass window for inducing a transient temperature gradient in the tissue by means of conductive heat transfer with the tissue, and a cooling element in operative combination with the thermal mass window for cooling the thermal mass window. Also provided is an infrared sensor for detecting infrared emissions emanating from the tissue as the transient temperature gradient progresses into the tissue, and for providing output signals proportional to the detected infrared emissions. A data capture element is provided for sampling the output signals received from the infrared sensor as the transient temperature gradient progresses into the tissue.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: March 6, 2001
    Assignee: Optiscan Biomedical Corporation
    Inventors: James R. Braig, Bernhard B. Sterling, Daniel S. Goldberger, Joan C. Godfrey, Julian Cortella, David J. Correia, Arthur M. Shulenberger, Charles E. Kramer
  • Device for producing and detecting induced heat radiation
    Patent number: 6172366
    Abstract: A device for producing and detecting induced heat radiation, in which movable mirror components are moved into and out of a crossed beam path by a stepping motor so as to be isogonal in the beam path. The stepping motor is controlled in such a manner that when the mirror components enter and leave the beam path, they leave at maximum speed. In another embodiment, a mirror component is pushed into and out of the beam path at a fixed angle of deviation.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: January 9, 2001
    Assignee: Phototherm Dr. Petry GmbH
    Inventor: Harald Petry
  • Method and device for measuring electromagnetic waves emanating from a melt
    Patent number: 6172367
    Abstract: In a method for determining electromagnetic waves originating from the interior of a melt (3), in particular a metal melt, a gas-filled hollow space (26) is formed within the melt (3) by blowing in gas and electromagnetic waves emitting from the melt (3) are observed through the blown-in gas and evaluated by feeding the electromagnetic waves via an optical system (20) to a detector (22) for determining the temperature and/or chemical composition.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: January 9, 2001
    Assignee: Voest-Alpine Industrieanlagenbau GmbH.
    Inventors: Ernst Fritz, Norbert Ramaseder