PAUL THOMAS RYAN
Engineers in Erie, PA
License number
Pennsylvania PE018447E
Category
Engineers
Type
Professional Engineer
Address
Address
Erie, PA 16505
Professional information
System For Automatically Controlling An Electrically Propelled Traction Vehicle Traversing A Gap In Wayside Source Of Power
US Patent:
4301899, Nov 24, 1981
Filed:
Apr 21, 1980
Appl. No.:
6/142292
Inventors:
Lloyd W. McSparran - Erie PA
Paul T. Ryan - Erie PA
Russell M. Smith - North East PA
Paul T. Ryan - Erie PA
Russell M. Smith - North East PA
Assignee:
General Electric Company - Erie PA
International Classification:
B60L 100
US Classification:
191 3
Abstract:
A plurality of stationary markers (A, B, C, and D) are symmetrically placed at predetermined locations in the right of way of an electrically propelled traction vehicle on opposite sides of a transition point coinciding with a gap (14) between adjacent sections (13a, 13b) of a wayside conductor. Proximity sensing means (PSR, PSL) on the vehicle provide discrete output signals on a first line (43) upon passing the first and third markers (A and C) and on a second line (44) upon passing the second and fourth markers (B and D). Receiver logic means (42) includes means (108, 111-115, and 118-127), responsive to the output signals on the first and second lines, respectively, for producing a first control signal (on line 51) during the first-to-third marker interval and a second control signal (on line 50) during the second-to-third marker interval. Means (24, 25, 55, and 60-71) is provided for disconnecting the vehicle's propulsion system (27, 29, M) from a current collector (16) either in delayed response to the start of the first control signal or in immediate response to the start of the second control signal, whereby the vehicle will coast unpowered as its current collector slides across the gap in the wayside conductor. Additional means (56, 75, 82-85) is provided for reconnecting the propulsion system in response to the termination of both of the control signals.
Method And Apparatus For Transitioning Diverse Power Sources To Rail Vehicles
US Patent:
3957236, May 18, 1976
Filed:
Sep 25, 1974
Appl. No.:
5/509125
Inventors:
David Reeves Phelps - Alexandria VA
Paul Thomas Ryan - Erie PA
Paul Thomas Ryan - Erie PA
Assignee:
General Electric Company - Erie PA
International Classification:
B61L 312
US Classification:
246187B
Abstract:
Placed near the transition point between power sources of different voltages or frequencies, is a wayside signal producing device which activates an on-board circuit for disconnecting the on-coming vehicle from the power source. When the vehicle has crossed the transition point, another signal producing device causes the vehicle to be connected to the other power source so as to resume power application. When the vehicle is proceeding in the opposite direction the sequence is reversed. In this way a multicar train can have the power source reliably switched in a car-by-car sequence without any appreciable loss in train speed.