Patents by Inventor Domingo F. Azpitarte Bolivar

Domingo F. Azpitarte Bolivar 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).

  • Water vapor relief device for domestic coffee makers
    Patent number: 4852473
    Abstract: A water vapor relief device for domestic coffee makers includes one tube connected to a vapor generator of the coffee maker and terminating at a free end thereof with an outlet hole and another tube which surrounds the first tube and forms therewith a chamber. The first tube at the end thereof carries an expanded head for a nozzle. A conduit formed between the nozzle and the head is inclined to produce the Venturi effect so that in the liquid such as milk in which the device is submerged the bubbling is produced which generates a foam.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: August 1, 1989
    Assignee: Oficina De Investigacion Agrupada, S.A
    Inventor: Domingo F. Azpitarte Bolivar