Patents by Inventor Brian J. Duffy

Brian J. Duffy 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).

  • Waveguide fence support
    Patent number: 11890676
    Abstract: A method of making a waveguide for a radar system includes forming an additive manufacturing build of a waveguide by forming an initial layer, followed by forming a succession of build layers on the initial layer in a build direction from the initial layer towards a final layer. Forming the succession of build layers includes forming an overhanging feature supported by a support formed in the succession of build layers.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: February 6, 2024
    Assignee: Raytheon Missiles & Defense (RMD)
    Inventors: James Benedict, Raquel M. Doyen, Brian J. Duffy, Judith E. Gill, Erica Klek, Jacob Steinberg
  • WAVEGUIDE FENCE SUPPORT
    Publication number: 20220258244
    Abstract: A method of making a waveguide for a radar system includes forming an additive manufacturing build of a waveguide by forming an initial layer, followed by forming a succession of build layers on the initial layer in a build direction from the initial layer towards a final layer. Forming the succession of build layers includes forming an overhanging feature supported by a support formed in the succession of build layers.
    Type: Application
    Filed: February 15, 2021
    Publication date: August 18, 2022
    Applicant: Raytheon Company
    Inventors: James Benedict, Raquel M. Doyen, Brian J. Duffy, Judith E. Gill, Erica Klek, Jacob Steinberg
  • Injection molded propeller
    Patent number: 4477228
    Abstract: An inexpensive injection molded propeller for mounting on a drive shaft. The drive shaft is attached to the hub of the propeller by a chemical and thermal shrink fit and by deformation due to the rotational forces of the propeller thereby producing a positive locking hub on the drive shaft. The propeller may be used, not only for remote piloted missiles and aircraft, but can also be used with different types of boat inboard and outboard drives, vehicles and equipment requiring a propeller having a positive locking system for securing the propeller or the like to the drive shaft.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: October 16, 1984
    Assignee: The Boeing Company
    Inventors: Brian J. Duffy, Eugene J. Gratz, Steven E. Potter, Royal A. Power
  • Method of making an injection molded propeller
    Patent number: 4414171
    Abstract: A method of making an inexpensive injection molded propeller for mounting on a drive shaft. The drive shaft is attached to the hub of the propeller by a chemical and thermal shrink fit and by deformation due to the rotational forces of the propeller thereby producing a positive locking hub on the drive shaft. The propeller may be used, not only for remote piloted missiles and aircraft, but can also be used with different types of boat inboard and outboard drives, vehicles and equipment requiring a propeller having a positive locking system for securing the propeller or the like to the drive shaft.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: November 8, 1983
    Assignee: The Boeing Co.
    Inventors: Brian J. Duffy, Eugene J. Gratz, Steven E. Potter, Royal A. Power
  • 1,3-Dihydro-heteroarylspiro (isobenzofuran)s
    Patent number: 4031224
    Abstract: Novel 1,3-dihydro-heteroarylspiro[isobenzofuran]s and methods of preparing same are described. These compounds are useful as antidepressants and tranquilizers.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: June 21, 1977
    Assignee: American Hoechst Corporation
    Inventors: Lawrence Leo Martin, Brian J. Duffy
  • 1,3-Dihydro-3-phenyl-1'-(2-propynyl)spiro[isobenzofuran]s
    Patent number: 3980786
    Abstract: Novel 1,3-dihydro-3-phenyl-1'-(2-propynyl)spiro[isobenzofuran]s and methods of preparing the same are described. These compounds are useful as antidepressants.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: September 14, 1976
    Assignee: American Hoechst Corporation
    Inventor: Brian J. Duffy