Patents by Inventor Nader Barjesteh

Nader Barjesteh 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).

  • Hand-held portable crimping tool
    Patent number: 6324884
    Abstract: A hand-held portable crimping tool for crimping fittings to hose assemblies, is manually operable, has removable snap-in dies, and yoke that is hydraulically powered. Operation of the tool causes the snap-in dies to crimp the fitting, wherein a linear force is transformed into a non-linear force applied by the snap-in dies to the fitting.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: December 4, 2001
    Assignee: Mastercool, Inc.
    Inventors: Michael Barjesteh, Nader Barjesteh
  • Universal valve core removal tool and kit
    Patent number: 6253436
    Abstract: A tool for a pressurized refrigeration system having a valve with a removable valve core comprises: a valve assembly having a first opening and a second opening and a shut-off valve, the shut-off valve adapted to close and open a passageway between the first opening and the second opening; a valve adapter coupled to the first opening, wherein the valve adapter is adapted to couple to the valve; and, a shaft assembly coupled to the second opening, the shaft assembly having a shaft adapted to move through the passageway, when the shut-off valve is open, and engage the removable valve core. The removable valve core can be removed, while under pressure, from the valve, by rotating the shaft to extract the removable valve core in a controlled manner.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: July 3, 2001
    Assignee: Mastercool, Inc.
    Inventors: Michael Barjesteh, Nader Barjesteh