DAVID SCOTT RICHMOND
Pilots at Price Lk Rd, Jackson, MI

License number
Michigan A4126489
Issued Date
Oct 2016
Expiration Date
Oct 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
6841 Price Lake Rd N, Jackson, MI 49201

Professional information

David Richmond Photo 1

Full Sensing Unit

US Patent:
5001927, Mar 26, 1991
Filed:
Sep 25, 1989
Appl. No.:
7/412190
Inventors:
James E. LaCava - Novi MI
David C. Richmond - Jackson MI
Norman S. Martucci - Birmingham MI
Peter A. Hochstein - Troy MI
Assignee:
Teleflex Incorporated - Limerick PA
International Classification:
G08B 2100
US Classification:
73304C
Abstract:
A liquid sensing assembly (10) senses the level of liquid (18) in a container (12). The assembly (10) includes a reference sensing capacitor (16) for sensing the dielectric constant of the liquid and a level sensing capacitor (14) for sensing the level of the liquid with a dielectric factor. A housing (20) forms one plate of the capacitors (14, 16), and two separate coiled wires form the second plates of the capacitors (14, 16). The capacitors (14, 16) are located within the housing (20) and separated by a seal (46) to prevent liquid from passing therethrough. The reference capacitor (16) is located in the upper end (28) of the housing (20) and receives the liquid directly at an inlet (52) and fills to overflow at an outlet (56) into the container (12). The level capacitor (16) is in the lower section of the housing (20) to sense the level in the container (12).