David R Howland

US Patent:

7876238, Jan 25, 2011

Filed:

Dec 5, 2006

Appl. No.:

11/566927

Inventors:

Thatcher L. Vandenbergh - Centennial CO, US
David Duncan Howland - Littleton CO, US
John Maris - Saint-Bruno, CA
Jens Schiefele - Wiesbaden, DE

Assignee:

The Boeing Company - Chicago IL

International Classification:

G01C 21/00

US Classification:

340971, 340988, 340945, 701 14, 701 15, 701 16

Abstract:

A navigation procedure display is described. The navigational procedure display includes a dynamic information area, positioned within the flight procedure display, for displaying a current procedure instruction and at least one successive procedure instruction. The navigational procedure display also includes a moving map area, positioned within the procedure display, for displaying a current position indication in at least three dimensions and situational awareness symbols.

US Patent:

20210003497, Jan 7, 2021

Filed:

Jun 18, 2020

Appl. No.:

16/904870

Inventors:

David Robert Howland - Grass Valley CA, US

International Classification:

G01N 17/04
C12Q 1/04
G01N 1/44

Abstract:

A system and method adapted to have high sensitivity to the formation of biofilm by mixed community bacteria in fluids. The system enhances corrosion imbalance by differentiating conditions between metal sensor elements immersed in the liquid being monitored. The liquid may be diverted to and flowed through a sample chamber where adjacent sensor elements may reside in different flow velocity or temperature regions. The differentiated conditions allow for different film formation on one of the sensor elements relative to the other, and also more quickly than in the main system from which the sampled liquid has been diverted. The differentiated formation allows the use of measurement of polarization current between the metal sensors to produce data with superior resolution relative to prior methods. The speed of film formation promoted by the differentiated conditions allows for determination of risk of film formation in the main system prior to that film's formation in the main system.

US Patent:

20180292306, Oct 11, 2018

Filed:

Jul 21, 2017

Appl. No.:

15/656729

Inventors:

David Robert Howland - Grass Valley CA, US

International Classification:

G01N 17/04
G01N 1/44
C12Q 1/04

Abstract:

A system and method adapted to have high sensitivity to the formation of biofilm by mixed community bacteria in fluids. The system enhances corrosion imbalance by differentiating conditions between metal sensor elements immersed in the liquid being monitored. The liquid may be diverted to and flowed through a sample chamber where adjacent sensor elements may reside in different flow velocity or temperature regions. The differentiated conditions allow for different film formation on one of the sensor elements relative to the other, and also more quickly than in the main system from which the sampled liquid has been diverted. The differentiated formation allows the use of measurement of polarization current between the metal sensors to produce data with superior resolution relative to prior methods. The speed of film formation promoted by the differentiated conditions allows for determination of risk of film formation in the main system prior to that film's formation in the main system.