Patents by Inventor Paul A. Ivester

Paul A. Ivester 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).

  • Patent number: 5209761
    Abstract: A liquid trap for removing liquid such as condensed water vapor from gas in a patient's sampled airstream. The liquid trap includes a separation chamber that is used to separate the liquid from the gas. An opening in the separation chamber allows the liquid to flow into a collection chamber where it is temporarily stored. The collection chamber has a purge port that allows the chamber to be emptied of liquid without removing the chamber from a gas analyzer. A check valve is coupled to the purge port to retain the liquid in the collection chamber. Electrodes sense when the liquid reaches a predetermined level. A vacuum is applied to the check valve to remove the liquid from the collection chamber through the purge port.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: May 11, 1993
    Assignee: SpaceLabs Medical, Inc.
    Inventors: Paul A. Ivester, Jeffrey M. Payne