24/06/2005 - Controller General of Patents, Designs, and Trade Marks

Publication After 18 month
The following Patent application have been published under Section 11A of the Patents
(Amendment) Act, 2005
21) Application No.:
(54) Title of the invention:
532/MUMNP/2004
PCT/A03/00261
Date:24/02/2003
(51) International classification: B 60 L 9/02 (71)
(30) Priority Data :
(31) Document No.: 10/083,587
(32) Date : 27/02/22/002
(33) Name of convention country : USA
(66) Filed U/s. 5(2) : NO
(61) Patent of addition to application No.: NIL
(62) Filed on : N.A. (72)
(63) Divisional to Application No.: NIL
(64) Filed on : N.A.
(57) Abstract:
A control system for individually controlling
power from a single voltage source to a
plurality of motors is described. A chopper
circuit, in conjunction with the control
system, generates drive-pulses, which
operates the IGBT switching devices to
sequentially provide pulses to each motor.
Figure: 01.
A (22) Date of filing of
Application:
24/09/2004
SEQUENCED PULSE WIDTH MODULATION
METHOD AND APPARATUS FOR CONTROLLING
AND POWIRING A PLURALITY OF DIRECT
CURRENT MOTORS.
Name of the Applicant:
RAIL POWER TECHNOLOGIES
CORP
Address of the Applicant:
202-50 FELL AVENUE,
NORTH VANCOUVER,
BRITISH COLUMBIA V7P 3S2,
CANDA.
Name of the Inventors:
01. DONNELLY FRANK
WEGENER
02. IWAN BRAIN GULAYETS
The Patent Office Journal 24.06.2005 17964