Charles K Gilbert

US Patent:

20130241788, Sep 19, 2013

Filed:

Apr 27, 2012

Appl. No.:

13/457546

Inventors:

Joseph M. Anderson - Tucson AZ, US
Jared W. Jordan - Sahuarita AZ, US
Charles C. Gilbert - Tucson AZ, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q 13/00
H01Q 13/10
H01P 11/00
H01Q 13/02

US Classification:

343771, 343772, 343786, 29600

Abstract:

Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS). The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the impedance of the surrounding medium. Because the coupling method and the radiating elements are wideband mediums, this antenna array is capable of wideband operation. The physical dimensions of the resulting array are also not as sensitive to its electrical performance as other antenna designs since the bandwidth is quite large, reducing the occurrence of an out-of-specification antenna due to manufacturing tolerance build-up. This also reduces the complexity of the manufacturing process, which in turn lowers cost.

US Patent:

20130241791, Sep 19, 2013

Filed:

Apr 27, 2012

Appl. No.:

13/457547

Inventors:

Joseph M. Anderson - Tucson AZ, US
Jared W. Jordan - Sahuarita AZ, US
Charles G. Gilbert - Tucson AZ, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q 1/48

US Classification:

343848

Abstract:

Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS) with an electromagnetic bandgap (EBG) ground plane surrounding the ridged waveguide transition. The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the intrinsic impedance of the surrounding medium. The EBG, which may be comprised of a photonic bandgap material or other metamaterial, allows for better frequency and bandwidth performance in a lower-profile array package, thereby reducing size and weight of the array for applications requiring small size and or low-inertia packaging. In alternate embodiments, radiating elements other than Vivaldi radiators may be used. This configuration also reduces the complexity of the manufacturing process, which in turn lowers cost.

US Patent:

20140009346, Jan 9, 2014

Filed:

Jul 9, 2012

Appl. No.:

13/543989

Inventors:

Joseph M. Anderson - Tucson AZ, US
Herbert A. Leach - Tucson AZ, US
Charles G. Gilbert - Tucson AZ, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q 19/06
H01Q 1/28

US Classification:

343705, 343833

Abstract:

A scanned radio frequency (RF) antenna having a small volume is described.

US Patent:

42731763, Jun 16, 1981

Filed:

May 8, 1979

Appl. No.:

6/037393

Inventors:

Ransome J. Wyman - Calabases CA
Richard A. Alshin - Long Beach CA
Charles H. Gilbert - Fullerton CA

Assignee:

Carefree Bicycle Tire Company - Marina Del Rey CA

International Classification:

B60C 712

US Classification:

152327

Abstract:

A solid monolithic tire for use on a wheel rim can be improved by incorporating within the tire a circumferentially extending tunnel formed on the inside of the tire body. Further, the tire body has inclined side walls that converge outwardly to form a V-shaped cross section. The apex of this V-shaped cross section forms the tread portion of the tire. Each of the side walls of the tire terminate in a thickened portion which forms a bead shoulder capable of seating on the bead flanges of the wheel rim to which the tire is mounted. Extending down through the thickened portion of either side of the tire is a bead which has a lower bead wall on the portion most distal to the thickened portion. A bead cord extends circumferentially embedded within the bead near the lower bead wall. The process by which the tire is formed allows the bead cord to be positioned in its appropriate place within the bead.

US Patent:

43100422, Jan 12, 1982

Filed:

May 9, 1980

Appl. No.:

6/148369

Inventors:

Ransome J. Wyman - Calabases CA
Richard A. Alshin - Long Beach CA
Charles H. Gilbert - Fullerton CA

Assignee:

Carefree Bicycle Tire Company - Marina Del Rey CA

International Classification:

B60C 712

US Classification:

152322

Abstract:

A monolithic non-pneumatic urethane tire for use on a wheel rim of the type having a pair of laterally spaced bead flanges formed with wheel rim side walls which extend upwardly from the bottom of the wheel rim is improved by providing a tire body with certain structural features and locating a tubular insert inside the tire body. The tire body has a circumferentially extending tunnel on its inside and includes side walls which converge outwardly to a thickened portion. The thickened portion forms a bead shoulder that seats on top of the bead flanges of the wheel rim and also includes a bead which extends downwardly into the wheel rim adjacent the side walls of the wheel rim. The tubular insert is a semiresilient hollow tube mounted within the tunnel of the tire body to maintain the bead portion of the tire body against the side walls of the wheel rim. The tube is resilient against deflection along a line passing through both of the beads but is capable of being distorted along a line passing through the tire body toward the center of the wheel rim.

US Patent:

42289246, Oct 21, 1980

Filed:

Aug 23, 1978

Appl. No.:

5/936312

Inventors:

Charles H. Gilbert - Fullerton CA

International Classification:

B67D 508

US Classification:

222 63

Abstract:

A machine is disclosed for repeatedly metering out quantities of a predetermined volume of fluid freshly mixed from a plurality of component sources. A mixing member (which may comprise simply a duct) is coupled to receive a plurality of component fluids through positive control valves. Reciprocating metering structures (cylinder-piston), connected to the valves, are driven in a controlled fashion by pressurized fluid and a reciprocating actuator. The control system incorporates sensors for detecting the positions of the metering structures as well as the valves to provide timely signals which change the valve positions and reverse the stroke. With the valves in one position, and upon movement of the actuator in one direction, fluid flows under pressure from a component source to an associated metering structure, then with the valves in another position, the actuator is reversed and the fluid is discharged from the metering structure to the mixing chamber. The valves are synchronously controlled by gear wheels which mesh with a common driver. As implemented, the control is by a pneumatic system.

US Patent:

46467769, Mar 3, 1987

Filed:

Sep 13, 1984

Appl. No.:

6/649881

Inventors:

Charles H. Gilbert - Pomona CA

Assignee:

Techcon Systems, Inc. - Carson CA

International Classification:

F16K 1520

US Classification:

137226

Abstract:

An apparatus utilizing a conventional pneumatic tire valve mounted concentrically within a resilient seal for cooperative action with a seat structure to accomplish three-way valve operation effective in pressurizing and relieving a chamber of a dispensing gun as for mastic material. A valve seat member: defines a flow passage, affords a flat surface about the passage for seating engagement with the resilient seal member, and receives a set screw for engaging the core of the conventional tire valve. The tire valve and the resilient seal member are fixed on a handle that is pivotably mounted with respect to the seat member to afford relative motion with respect to the seat member for variously actuating the valve.

US Patent:

20170133762, May 11, 2017

Filed:

Nov 10, 2015

Appl. No.:

14/936711

Inventors:

- Waltham MA, US
Charles G. Gilbert - Tucson AZ, US
Jack H. Anderson - Tucson AZ, US
Robyn Jimenez - Vail AZ, US

Assignee:

RAYTHEON COMPANY - Waltham MA

International Classification:

H01Q 9/04
H01Q 1/42
H01Q 1/48
H01Q 1/12

Abstract:

A fixed beam ramp electromagnetic band gap (EBG) antenna including a radiating element and an electromagnetic band gap (EBG) structure both disposed within a ramped cavity. The cavity is designed with the ramp leading to the EBG structure disposed about a base of the cavity. The radiating element can be disposed above the EBG structure and the EBG structure may have a plurality of unit cells. The EBG structure can be provided both, horizontally on the floor of the cavity and vertically along a back wall of the cavity. The use of both horizontal and vertical EBG structures combined with the ramped cavity increases the bandwidth and enhances the beam steering of the antenna system.