Patents by Inventor Exequiel de la Cruz

Exequiel de la Cruz 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: 4350647
    Abstract: An adapter for connection between an oxygen flowmeter and a water bottle whose contents humidify oxygen fed to a patient. An audible duckbill valve is mounted on a valve seat transverse to the longitudinal axis of the connector. When oxygen pressure through the connector becomes excessive, the valve opens, producing an audible sound to alert an attendant to the condition.
    Type: Grant
    Filed: June 19, 1981
    Date of Patent: September 21, 1982
    Assignee: Respiratory Care, Inc.
    Inventor: Exequiel de la Cruz