Patents by Inventor Michael Barjesteh

Michael 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).

  • Publication number: 20040027823
    Abstract: A hand held refrigeration leak detector provides single hand operation for a user while holding the main body of the detector. The flexible stalk is coupled to the main body and to a head containing an LED light source which provides spectral emissions in the UV to blue range.
    Type: Application
    Filed: August 6, 2003
    Publication date: February 12, 2004
    Inventor: Michael Barjesteh
  • Patent number: 6647761
    Abstract: A hand held refrigeration fluid leak detector for observing and detecting optical fluorescence resulting from optical excitation of the leaking refrigeration fluid provides single hand operation for a user while holding the main body of the detector with either one of two hands. The flexible stalk is coupled to the main body and to a head containing an LED light source which provides spectral emissions in the UV to blue range. In one embodiment, the hand held detector includes a gas detector.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: November 18, 2003
    Assignee: Mastercool, Inc.
    Inventor: Michael Barjesteh
  • Patent number: 6619099
    Abstract: The movement of an expander by actuation of a manual hydraulic pump in a hydraulically powered flaring hand tool contacts die elements so as to move the die elements radially outward to flare hollow malleable cylindrical tubing. The tool has a manual hydraulic pump for producing movement of a shaft, an adjuster member coupled to the manual hydraulic pump, permitting the shaft to slide through the adjuster member, an expander coupled to the shaft end, and a die set having a plurality of die elements, the die set is coupled to the adjuster member.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: September 16, 2003
    Assignee: Mastercool, Inc.
    Inventor: Michael Barjesteh
  • Publication number: 20030010093
    Abstract: A hand held refrigeration leak detector provides single hand operation for a user while holding the main body of the detector. The flexible stalk is coupled to the main body and to a head containing an LED light source which provides spectral emissions in the UV to blue range.
    Type: Application
    Filed: June 19, 2002
    Publication date: January 16, 2003
    Inventor: Michael Barjesteh
  • Publication number: 20020043093
    Abstract: The movement of an expander by actuation of a manual hydraulic pump in a hydraulically powered flaring hand tool contacts die elements so as to move the die elements radially outward to flare hollow malleable cylindrical tubing. The tool has a manual hydraulic pump for producing movement of a shaft, an adjuster member coupled to the manual hydraulic pump, permitting the shaft to slide through the adjuster member, an expander coupled to the shaft end, and a die set having a plurality of die elements, the die set is coupled to the adjuster member.
    Type: Application
    Filed: October 16, 2001
    Publication date: April 18, 2002
    Inventor: Michael Barjesteh
  • 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
  • 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