Michael James Carr

US Patent:

49518577, Aug 28, 1990

Filed:

Feb 9, 1988

Appl. No.:

7/154172

Inventors:

Michael Carr - Rockville MD

International Classification:

A45F 502

US Classification:

224230

Abstract:

A paint brush carrier is provided for holding a paint brush, comprising a pocket clip, a flat member pivotally connected to the pocket clip, a handle clip attached to the flat member for clipping the handle of the paint brush, and a paint brush container attached to the flat member for holding the brush end of the paint brush.

US Patent:

41885899, Feb 12, 1980

Filed:

Sep 1, 1978

Appl. No.:

5/939081

Inventors:

Kenneth H. Brown - Scottsdale AZ
Michael E. Carr - Tempe AZ
Charles W. Rook - Phoenix AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H03B 304

US Classification:

331 12

Abstract:

The acquisition means includes a voltage controlled oscillator, comparison means for comparing an input signal to a signal from the voltage controlled oscillator, filtering means and a summing network connected in a phase-locked loop and providing an output signal at an output thereof at the input of said summing network, a signal multiplying network connected to receive the input signal and a signal from the VCO of the phase-locked loop and providing an output signal approximately 90 degrees out of phase with the output signal of the phase locked loop and two all pass networks connecting the output signals from the multiplying network and the phase locked loop to two inputs of a multiplier which has an output connected to the summing network, the all pass networks being designed to shift the phases of the signals so that they are in phase when applied to the multiplier.

US Patent:

20200403302, Dec 24, 2020

Filed:

Jun 18, 2019

Appl. No.:

16/444520

Inventors:

- Chicago IL, US
Michael M. LoRe - Mesa AZ, US
Andy H. Lee - Phoenix AZ, US
Michael B. Carr - Mesa AZ, US

International Classification:

H01Q 1/42
H01Q 21/24
G01S 3/48
G01S 3/04

Abstract:

In examples, systems and methods for direction finding of electromagnetic signals are described. The device includes a first antenna configured to receive electromagnetic energy. The device also includes a second antenna configured to separately receive the same electromagnetic energy. The device further includes a radome located in a receiving pathway of the first antenna, where the radome is configured to cause a predetermined phase shift that varies based on an angular position of the receiving pathway. The device includes 1 or more radio receivers to receive the signals independently from the antennas. Additionally, the direction finding device includes a processor configured to determine an angle of arrival of the electromagnetic energy based on a comparison of a phase of the electromagnetic energy received by the first antenna to a phase of the electromagnetic energy received by the second antenna.