Patrick Antonio Davis

US Patent:

H2771, May 5, 1987

Filed:

Oct 30, 1986

Appl. No.:

6/925039

Inventors:

Steven Lee - Kensington MD
Paul Smith - Silver Spring MD
Patrick Davis - College Park MD

Assignee:

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

International Classification:

G01D 534

US Classification:

250231R

Abstract:

Apparatus for measuring the direction, extent and rate of linear displacet of a body (e. g. a steel bulkhead) subjected to a harsh environment such as shock from an explosive force. A housing containing an extendable piston is connected between the movable body and a fixed structure. The piston has a surface marked with alternating high and low light reflecting bands which pass under a pair of light emitting optical fibers fixed on the housing. Light reflected from the bands is detected and converted into corresponding out of phase electrical signals for measuring direction, extent and rate of linear displacement of the piston.

US Patent:

20220364900, Nov 17, 2022

Filed:

May 16, 2022

Appl. No.:

17/744839

Inventors:

- LONGWOOD FL, US
Victoria E. Gingold - Longwood FL, US
Mark Alexander MCCORKLE - Longwood FL, US
Patrick Terry Davis - Oviedo FL, US

International Classification:

G01F 23/263
G01F 23/00

Abstract:

A liquid level sensing system for a vehicle tank may include a liquid level display including a display panel and a first number of visual indicators carried by the display panel. The system may also include capacitive sensors to be coupled to the vehicle tank to sense a second number of possible liquid levels being greater than the first number of visual indicators. In addition, the system may include a controller configured to drive the visual indicators in a modulation pattern based upon the capacitive sensors to thereby display a sensed liquid level having a resolution corresponding to the second number of possible liquid levels.