David J Locke

US Patent:

40964744, Jun 20, 1978

Filed:

Apr 12, 1976

Appl. No.:

5/676011

Inventors:

Charles B. Greer - Clifton VA
Nathan Alter - Alexandria VA
David E. Locke - Manassas Park VA

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G08B 1300

US Classification:

340261

Abstract:

A seismic detection system for detecting persons hidden in vehicles inclu a seismic transducer used as a sensing device and electronic processing circuitry for processing the output signals from the seismic transducer. The electronic circuitry detects output signals from the seismic transducer, and, by counting the number of times the signal crosses a preset threshold during a given time window, makes a logic choice between there being personnel or no personnel in the vehicle. If a person or persons are in the vehicle an output is produced and this output is used to actuate audio and/or visual indicators thereby indicating that a person or persons are in the vehicle.

US Patent:

20210138207, May 13, 2021

Filed:

Oct 1, 2020

Appl. No.:

17/060129

Inventors:

- Irvine CA, US
Fatemeh Akbarian - Rancho Palos Verdes CA, US
David M. Locke - Springboro OH, US
Athanasios Papadakis - Newport Beach CA, US
Madison K. Vanosdoll - Irvine CA, US

International Classification:

A61M 25/10

Abstract:

A method of dilating a target anatomical structure of an ear, a nose, or a throat of a patient includes inserting a distal end of a balloon catheter into the ear, the nose, or the throat. The balloon catheter includes a balloon assembly coaxially disposed along a proximally extending shaft. The balloon assembly includes at least first and second dilation balloons that at least partially overlap one another. The method also includes distally advancing the distal end until the balloon assembly is disposed in the target anatomical structure. The method also includes selectively dilating the target anatomical structure based on a diameter of the target anatomical structure by inflating the first dilation balloon to a first diameter or inflating the second dilation balloon to a second diameter that is greater than the first diameter. The second inflation lumen is not in fluid communication with the first inflation lumen.