Aaron V Farr
Land Surveyors in Logan, UT
License number
Utah 175910-9925
Issued Date
Jan 1, 1911
Expiration Date
Dec 31, 1999
Category
Engineer/Land Surveyor
Type
Engineer in Training - Obsolete
Address
Address
Logan, UT
Professional information
Direct Current Motor Controller
US Patent:
4633152, Dec 30, 1986
Filed:
Nov 29, 1984
Appl. No.:
6/676038
Inventors:
Aaron V. Farr - Logan UT
Assignee:
Abex Corporation - Stamford CT
International Classification:
H02P 506
US Classification:
318257
Abstract:
A control for controlling the operation of a direct current motor by select application of a three phase alternating current line input of given frequency to the armature thereof through solid-state forward and reverse designated switches which are gated by select enable inputs.
Vertical Descent Rate Detector Switch
US Patent:
4414518, Nov 8, 1983
Filed:
Nov 30, 1982
Appl. No.:
6/445815
Inventors:
Aaron V. Farr - Logan UT
Assignee:
Abex Corporation - New York NY
International Classification:
H01H 900
US Classification:
335205
Abstract:
A vertical descent rate detector switch has a pair of contacts which are magnetically actuated when the rate of vertical descent of the switch exceeds a set amount.
Bridge Positioning Device
US Patent:
4358721, Nov 9, 1982
Filed:
May 20, 1980
Appl. No.:
6/151559
Inventors:
Aaron V. Farr - Logan UT
Assignee:
Abex Corporation - New York NY
International Classification:
G05B 106
US Classification:
318604
Abstract:
A control for the motor of a mechanism which adjusts the position of the distal end of a passenger loading bridge, which control, when actuated, causes the motor to operate and the adjustment mechanism to move the end of the bridge to a preset position.
Bridge Brake System
US Patent:
4344200, Aug 17, 1982
Filed:
Sep 25, 1980
Appl. No.:
6/190685
Inventors:
Aaron V. Farr - Logan UT
Robert L. Saunders - Ogden UT
Robert L. Saunders - Ogden UT
Assignee:
Abex Corporation - New York NY
International Classification:
E01D 100
US Classification:
14 715
Abstract:
A brake system for an aircraft passenger loading bridge monitors the operation of a drive system which raises and lowers the bridge. In the event of a malfunction of the drive system, the brake system interrupts power to the drive system and actuates a brake to prevent further operation of the drive system.
Phase Detector
US Patent:
4636720, Jan 13, 1987
Filed:
Nov 30, 1984
Appl. No.:
6/676690
Inventors:
Aaron V. Farr - Logan UT
Assignee:
Abex Corporation - Boston MA
International Classification:
G01R 2500
US Classification:
324 86
Abstract:
A phase detector for monitoring the presence, sequence and polarity of each phase line for a three-phase power input and indicating when a phase is missing or out of sequence.