Patents by Inventor Charles R. Boyd

Charles R. Boyd 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: 5604320
    Abstract: In a sampler mechanism for the taking of closed loop samples of fluid materials in a septum closed container positioned by and within a shroud, a ring insert removably secured within said shroud by a selective locking device, said ring insert having an inside diameter similar to the outside diameter of said septum closed container.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: February 18, 1997
    Assignee: Texas Sampling, Inc.
    Inventor: Charles R. Boyd
  • Patent number: 5433120
    Abstract: This invention relates to a sampling system for collecting a sample in a septum closed container. It provides for a reservoir of a predetermined volume which captures a sample and it further provides for routing of the captured sample from the reservoir to the septum closed container.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: July 18, 1995
    Assignee: Texas Sampling, Inc.
    Inventors: Charles R. Boyd, John D. Anderson
  • Patent number: 5431067
    Abstract: The invention relates to a sampler mechanism for fluidly interconnecting a ball valve with the interior space of a septum closed container for the taking of closed loop samples of fluid materials. The sampler mechanism includes a needle assembly having a hollow needle and a needle seating collar which is positioned adjacent the ball in the ball valve, a threaded injector end fitting for attaching and securing the needle assembly to the ball valve, and an injector body for fluidly connecting the ball valve to the container and for providing a fluid passageway for fluid communication between the container and a side surface of the injector body.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: July 11, 1995
    Assignee: Texas Sampling, Inc.
    Inventors: John D. Anderson, Charles R. Boyd
  • Patent number: 5361643
    Abstract: This invention relates to a sampling system for collecting a sample in a sample cylinder having valves on both ends. The system includes an inlet line, a return line, a four-way valve, a level indicator and a sample loop including sample cylinder connections. After the sample cylinder is connected to the sample cylinder connections, the system and four-way valve allow the sample fluid to be selectively routed to flow in the inlet line, through the sample loop and sample cylinder and through the exit line or to flow in the inlet line and through the exit line, bypassing the sample loop.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: November 8, 1994
    Assignee: Texas Sampling Co.
    Inventors: Charles R. Boyd, John D. Anderson
  • Patent number: 5301560
    Abstract: The invention relates to a sampler mechanism for fluidly interconnecting a ball valve with the interior space of a septum closed container for the taking of closed loop samples of fluid materials. The sampler mechanism includes a needle assembly having a hollow needle and a needle seating collar which is positioned adjacent the ball in the ball valve, a threaded injector end fitting for attaching and securing the needle assembly to the ball valve, and an injector body for fluidly connecting the ball valve to the container and for providing a fluid passageway for fluid communication between the container and a side surface of the injector body.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: April 12, 1994
    Assignee: Texas Sampling, Inc.
    Inventors: John D. Anderson, Charles R. Boyd
  • Patent number: 4564824
    Abstract: A phase-shifter apparatus which imposes a desired phase shift on an electromagnetic wave traveling through a waveguide, and divides the power in an output waveguide into two parts. The phase shifter apparatus includes a quarter-wave plate for changing the polarization of the linearly polarized wave to a circularly polarized wave, a rod of ferromagnetic material with a magnetic field for imposing a desired phase shift on the circularly polarized wave traveling through the rod, a quarter-wave plate for converting the circularly polarized wave to a linearly polarized wave, and a septum polarizer in the output wave guide for dividing the power. The output waveguide has the power divided between two ports, and independent phase shifts are imposed on the electromagnetic waves of each port.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: January 14, 1986
    Assignee: Microwave Applications Group
    Inventor: Charles R. Boyd, Jr.