The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 1995
Filed:
Apr. 06, 1994
John D Sink, Yorba Linda, CA (US);
MagneTek Power Technology Systems, Inc., Anaheim, CA (US);
Abstract
A power drive system for use in a linear motor propulsion system for powering and propelling a train of a predetermined length along a track. The power drive system includes a plurality of drive coils spaced along the track electrically connected together to form a set of coils. The distance along the track between adjacent coils in a set is greater than the train length. A plurality of sets of coils are interdigitated with each other, with the distance between adjacent coils from different sets spaced closely together to provide that a group of coils, each from different sets is adjacent the train at all locations along the track. The drive system also includes a plurality of inverters, each inverter connected to a set of coils.