Patents by Inventor Darin Bartholomew

Darin Bartholomew 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: 20240133355
    Abstract: A fuel injector and a nozzle for a fuel injector is provided. The nozzle includes at least one spray hole that is formed through a hardened nozzle body. The nozzle body is hardened again after forming the at least one spray hole to hardened the nozzle body along the at least one spray hole.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 25, 2024
    Inventors: Romaine O. Edwards, Frank Husmeier, Darin Bartholomew, Manoj M. Thete
  • Publication number: 20230288175
    Abstract: Target systems for axe-throwing. The target systems include a plate, a target member, and a coupling strap. The target member is coupled to the plate. The target member includes an inner face abutting the plate and an outer face opposite the inner face. The outer face displays an arrangement of scoring regions. The coupling strap is coupled to the plate and configured to selectively secure to a support. In some examples, the target system includes a second coupling strap, a circumferential strap, and/or an annular shield. In some examples a container system for transporting the target system is provided.
    Type: Application
    Filed: March 29, 2022
    Publication date: September 14, 2023
    Inventor: Darin BARTHOLOMEW
  • Patent number: 5440278
    Abstract: The radio frequency ferrite system for modulating, phase shifting, or attenuating radio frequency energy has a resonator, a ferrite polarizer, and coupling devices. The coupling devices are used to couple radio frequency signals to and from an interior of the resonator. The ferrite polarizer generates magnetic fields corresponding to an applied voltage or current. To produce phase modulation the ferrite polarizer may be used to detune the cavity from resonance by changing the orientation of the radio frequency signal with respect to a protrusion in the resonator. The ferrite system may be used for phase modulation, switching radio frequency signals, and amplitude modulation by arranging the coupling devices in various orientations and by simultaneously changing the polarization of radio frequency signals with the ferrite polarizer.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: August 8, 1995
    Inventor: Darin Bartholomew