Patents by Inventor Benno Moreth

Benno Moreth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for calibrating a gas metering instrument
    Patent number: 4793173
    Abstract: A process for calibrating a gas metering instrument comprises flushing a test chamber with a flushing gas and subsequently filling it with a calibrating gas having a predetermined composition of carrier substance and carrier gas. The calibrating gas does not have to be carried and made available constantly in its predetermined composition. Thereby a reduction in the volume of the gas metering instrument is obtained. For this purpose, provisions are made so that a feed device introduces a specified amount of calibrating substance from a reservoir into the heat chamber, whereupon the calibrating substance mixes with the flushing gas in the test chamber to form the calibrating gas of predetermined composition. In addition, equipment is described for implementing the process of calibrating a gas metering instrument.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: December 27, 1988
    Assignee: Dragerwerk Aktiengesellschaft
    Inventors: Benno Moreth, Kurt Leichnitz
  • Process for calibrating a gas metering instrument
    Patent number: 4723436
    Abstract: A process for calibrating a gas metering instrument comprises flushing a test chamber with a flushing gas and subsequently filling it with a calibrating gas having a predetermined composition of carrier substance and carrier gas. The calibrating gas does not have to be carried and made available constantly in its predetermined composition. Thereby a reduction in the volume of the gas metering instrument is obtained. For this purpose, provisions are made so that a feed device introduces a specified amount of calibrating substance from a reservoir into the heat chamber, whereupon the calibrating substance mixes with the flushing gas in the test chamber to form the calibrating gas of predetermined composition. In addition, equipment is described for implementing the process of calibrating a gas metering instrument.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: February 9, 1988
    Assignee: Dragerwerk Aktiengesellschaft
    Inventors: Benno Moreth, Kurt Leichnitz