Patents by Inventor DHRUV N. PATEL

DHRUV N. PATEL 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: 11396045
    Abstract: A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: July 26, 2022
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Shant Kenderian, Tait DeWitt McLouth, Joseph T. Case, Dhruv N. Patel
  • Publication number: 20200290121
    Abstract: A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 17, 2020
    Inventors: Shant KENDERIAN, Tait DeWitt MCLOUTH, Joseph T. CASE, Dhruv N. PATEL
  • Patent number: 10022747
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 17, 2018
    Assignee: The Aerospace Corporation
    Inventors: Rafael J. Zaldivar, Geena L. Ferrelli, Hyun I. Kim, Dhruv N. Patel
  • Patent number: 9956587
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 1, 2018
    Assignee: The Aerospace Corporation
    Inventors: Rafael J. Zaldivar, Geena L. Ferrelli, Hyun I. Kim, Dhruv N. Patel
  • Publication number: 20180099310
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 12, 2018
    Inventors: Rafael J. ZALDIVAR, Geena L. FERRELLI, Hyun I. KIM, Dhruv N. PATEL
  • Publication number: 20180056327
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 1, 2018
    Inventors: Rafael J. ZALDIVAR, Geena L. FERRELLI, Hyun I. KIM, Dhruv N. PATEL
  • Patent number: 8904887
    Abstract: A radio-frequency transparent window having internal conduits for the passage of cooling fluid is configured for simulating a highly uniform thermal environment for testing a device intended for use in space. The device to be tested is placed within a chamber in which a vacuum condition is maintained by a radio-frequency transparent pressure window under a pressure seal. Within the chamber, the thermal window is positioned adjacent, but not in contact with, the pressure window. A radio frequency signal is capable of passing directly through both the thermal window and the pressure window to permit communication with the device being tested within the housing. The thermal window is not in contact with the device so there in no conduction of heat from the device. Radiant heat transfer may occur from the device to the thermal window.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: December 9, 2014
    Assignee: The Aerospace Corporation
    Inventors: Michael A. Tockstein, James P. Nokes, Jon V. Osborn, Dhruv N. Patel, Alan R. Hopkins, John S. Williams, Gary N. Harper
  • Publication number: 20130125676
    Abstract: A radio-frequency transparent window having internal conduits for the passage of cooling fluid is configured for simulating a highly uniform thermal environment for testing a device intended for use in space. The device to be tested is placed within a chamber in which a vacuum condition is maintained by a radio-frequency transparent pressure window under a pressure seal. Within the chamber, the thermal window is positioned adjacent, but not in contact with, the pressure window. A radio frequency signal is capable of passing directly through both the thermal window and the pressure window to permit communication with the device being tested within the housing. The thermal window is not in contact with the device so there in no conduction of heat from the device. Radiant heat transfer may occur from the device to the thermal window.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 23, 2013
    Applicant: THE AEROSPACE CORPORATION
    Inventors: MICHAEL A. TOCKSTEIN, JAMES P. NOKES, JON V. OSBORN, DHRUV N. PATEL, ALAN R. HOPKINS, JOHN S. WILLIAMS