ANDREW BAKER MAITLAND
Pilots at Whitehill Rd, Cranberry, PA
License number
Pennsylvania A1178395
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1023 Whitehill Rd, Cranberry, PA 16319
Professional information
Telescoping Ramp
US Patent:
7010825, Mar 14, 2006
Filed:
Aug 24, 2004
Appl. No.:
10/924347
Inventors:
Barbara Kaye Finch Salas - Cranberry PA, US
Andrew Baker Maitland - Cranberry PA, US
Andrew Baker Maitland - Cranberry PA, US
Assignee:
Goldfinch Enterprises, Inc. - Hershey PA
International Classification:
E01D 15/10
US Classification:
14 725, 14 695
Abstract:
A telescoping ramp assembly incorporates one or more sloping deck ramp sections which nest inside one another; are mounted on wheels; and have pull-up/fold-down railing sections which rise/lower and link/unlink as the ramp sections, powered manually or by way of a motor, retract and extend upon a firm surface from underneath a housing porch which itself is fixed to the entrance way of a home or building.
Level Sensor
US Patent:
4747451, May 31, 1988
Filed:
Aug 6, 1987
Appl. No.:
7/082840
Inventors:
Harold P. Adams - Oil City PA
David R. Hill - Oil City PA
Lee M. Richey - Franklin PA
Andrew B. Maitland - Cranberry PA
William E. Banton - Derry NH
David C. Taylor - Slippery Rock PA
David R. Hill - Oil City PA
Lee M. Richey - Franklin PA
Andrew B. Maitland - Cranberry PA
William E. Banton - Derry NH
David C. Taylor - Slippery Rock PA
Assignee:
Oil Well Automation, Inc. - Oil City PA
International Classification:
E21B 4300, E21B 4704, F04B 4906
US Classification:
166 53
Abstract:
A system for controlling production in an oil well comprises a first level sensor mounted upon the outer surface of the tubing near the lower end of the tubing and a second level sensor mounted upon the outer surface of the tubing above the first level sensor. The first level sensor is tuned to a first electrical signal frequency. The second level sensor is tuned to a second electrical signal frequency. A control device at spaced intervals transmits electrical signals of the first and second frequencies down the oil well and senses the liquid level by detecting impedance.
Level Sensor
US Patent:
RE33690, Sep 17, 1991
Filed:
Apr 5, 1990
Appl. No.:
7/505346
Inventors:
Harold P. Adams - Oil City PA
Andrew B. Maitland - Cranberry PA
David R. Hill - Oil City PA
William E. Banton - Derry NH
Lee M. Richey - Franklin PA
David C. Taylor - Slippery Rock PA
Andrew B. Maitland - Cranberry PA
David R. Hill - Oil City PA
William E. Banton - Derry NH
Lee M. Richey - Franklin PA
David C. Taylor - Slippery Rock PA
Assignee:
Oil Well Automation, Inc. - Seneca PA
International Classification:
E21B 4300, E21B 4706, F04B 4906
US Classification:
166 53
Abstract:
A system for controlling production in an oil well comprises a first level sensor mounted upon the outer surface of the tubing near the lower end of the tubing and a second level sensor mounted upon the outer surface of the tubing above the first level sensor. The first level sensor is tuned to a first electrical signal frequency. The second level sensor is tuned to a second electrical signal frequency. A control device at spaced intervals transmits electrical signals of the first and second frequencies down the oil well and senses the liquid level by detecting impedance.