Patents by Inventor Hassan Balbaa

Hassan Balbaa 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: 5997783
    Abstract: A vent for a mold for producing foamed articles is described. The mold comprises an upper mold and a lower mold releaseably engageable in a closed position to define a mold cavity. The vent comprises a housing which is engageable to the mold, a passageway and an obstruction disposed in the passageway. The passageway and the obstruction are slidably movable in a first direction with respect to one another and define an opening between an interior and an exterior of the housing. The obstruction has a varying diameter in a direction parallel to the first direction. The subject mold and method are particularly well suited for the production of molded foam (e.g., polyurethane) articles.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: December 7, 1999
    Assignee: Woodbridge Foam Corporation
    Inventors: Craig A. Hunter, Hassan Balbaa