Patents by Inventor Ahmad R. Shishegar

Ahmad R. Shishegar 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: 20200240776
    Abstract: Described are system and method embodiments for measuring a thickness of a material layer using electromagnetic radiation. In some embodiments, a system includes a radiation source configured to direct first radiation towards a first surface of a layer of material having a thickness between the first surface and a second surface opposite the first surface. The first radiation causes the material layer to emit secondary radiation. A filter is positioned between the material layer and a radiation detector and in the beam path of the second radiation in order to attenuate a portion of the second radiation associated with fluorescence of the material to emit third radiation. Then, the radiation detector is configured to detect the third radiation and a controller is configured to provide a measurement corresponding to the thickness of the material layer based on the detected third radiation.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 30, 2020
    Applicant: NDC Technologies Inc.
    Inventors: Vahe GHAZIKHANIAN, Ahmad R. SHISHEGAR
  • Patent number: 9702504
    Abstract: A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: July 11, 2017
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventors: Wojciech T. Pierga, Thomas R. Siwek, Ahmad R. Shishegar
  • Publication number: 20140150615
    Abstract: A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventors: Wojciech T. Pierga, Thomas R. Siwek, Ahmad R. Shishegar
  • Patent number: 8640583
    Abstract: A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: February 4, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Wojciech T. Pierga, Thomas R. Siwek, Ahmad R. Shishegar
  • Patent number: 6922153
    Abstract: A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: July 26, 2005
    Assignee: Credo Technology Corporation
    Inventors: Wojciech T. Pierga, Thomas R. Siwek, Ahmad R. Shishegar
  • Publication number: 20040226800
    Abstract: A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 18, 2004
    Applicant: Credo Technology Corporation.
    Inventors: Wojciech T. Pierga, Thomas R. Siwek, Ahmad R. Shishegar