Patents by Inventor Issac Zakensberg

Issac Zakensberg 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: 5839609
    Abstract: The thermoformed package has a positive sealing ridge valve so that portions of the thermoformed package can be dispensed at different times. There is a relatively thick, shaped bottom sheet and a relatively thin, substantially planar, top sheet. The top sheet is bonded to the shaped bottom sheet around the perimeter of the shaped bottom sheet. At one end of the shaped bottom sheet there is a narrowed region with at least two recesses and a ridge separating the recessed areas. The ridge extends to or above the top surface of the shaped bottom sheet. The top sheet and the ridge cooperate to form a ridge valve to seal the body portion of the thermoformed package from a dispensing opening until a positive force is applied to the body portion. The thermoformed package is opened by the removal of a tab located beyond the recesses and ridge. The recesses and ridge in the shaped bottom sheet and the relatively thin top sheet form an effective sealing valve.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: November 24, 1998
    Assignee: Colgate-Palmolive Company
    Inventor: Issac Zakensberg
  • Patent number: 5826737
    Abstract: A recloseable container is preferably produced by thermoforming. The container has an elongated shape with a dispensing nozzle at one end. Above the dispensing nozzle is a tab. When this tab is broken off the container, the nozzle is opened. Adjacent the nozzle is a hinged closure. The hinged closure has a shape complementary to that of the nozzle and can be rotated on the hinge to overlap and close the container nozzle. There is an arrangement to lock the closure in a nozzle closing orientation and an arrangement to provide an air and liquid seal to the nozzle.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: October 27, 1998
    Assignee: Colgate-Palmolive Company
    Inventor: Issac Zakensberg