ROBERT ALTON YORK
Pilots at Blair Mtn Rd, Siddonsburg, PA
License number
Pennsylvania A2118547
Issued Date
Nov 2015
Expiration Date
Nov 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
170 Blair Mountain Rd, Siddonsburg, PA 17019
Professional information
Apparatus And Method For Determining The Current State Of Charge Of A Battery By Monitoring Battery Voltage Increases Above And Decreases Below A Threshold
US Patent:
5698965, Dec 16, 1997
Filed:
Jul 1, 1996
Appl. No.:
8/673851
Inventors:
Robert A. York - Dillsburg PA
Assignee:
Flight Systems, Inc. - Lewisberry PA
International Classification:
H01M 1044, H01M 1046
US Classification:
320 30
Abstract:
An apparatus and method for determining a current state of charge of a battery are disclosed. The apparatus includes a battery signal developer, a threshold developer, a comparator, and a bi-directional integrating device. The battery signal developer receives a battery voltage and develops a corresponding battery signal. The threshold developer receives an integration result signal based on an integration value representative of the current state of charge of the battery, and develops a threshold signal based on the integration value. The comparator provides first and second comparison signals, respectively, when the battery signal magnitude is greater than and less than the threshold signal magnitude. The integrating device accumulates the integration value and receives a comparison result signal based on the first and second comparison signals. The integrating device adjusts the integration value in first and second opposite directions, respectively, when the first and second comparison signals are being provided by the comparator to reflect both increases and decreases in the current state of charge of the battery.
Semiconductor Heat Sink Mounting Assembly
US Patent:
4333101, Jun 1, 1982
Filed:
Sep 18, 1980
Appl. No.:
6/188202
Inventors:
Robert A. York - Dillsburg PA
Assignee:
Flight Systems, Inc. - Mechanicsburg PA
International Classification:
H01L 2348, H01L 2944, H01L 2342
US Classification:
357 79
Abstract:
A field replaceable silicon controlled rectifier (SCR) heat sink with reliable thermal and electrical connection to the SCR or other electronic device for an electronic circuit forming part of a vehicle control. The SCR heat sink includes two discrete heat sink blocks having opposed parallel faces between which an SCR or other electronic device may be properly clamped. At least one insulator hold down bar and an associated spring overlie a flange on the lowr end of each block and facilitate clamping the blocks to a base plate. The blocks are clamped to the SCR by a force distributing spring and bolts for properly applying a clamping force to the SCR or other electronic device.