Patent ID: 6598539
Filing Date: 2003-07-29
Classification: B61D,E05F,E05Y

Abstract:
An overhead linear power door operator for moving a door panel of a mass transit vehicle, said door operator comprising:(a) a first operator support mountable overhead of a door opening in said transit vehicle; (b) a drive member connected to said first operator support at a first end thereof; (c) an electric rotary prime mover connected to said drive member through a coupler for powering said drive member, said prime mover connected to a second operator support mountable overhead of said door opening in said transit vehicle; (d) a drive nut having an internal threaded bore, said drive nut engaging said drive member to be driven by said drive member upon rotation of said drive member by said electric rotary prime mover; (e) a driving door panel hanger bracket extending above said door panel and connected to said drive nut, said door panel hanger bracket having at least two upper rollers and at least one lower roller engaging said drive member for motion along said drive member; and (f) a driven door panel hanger bracket extending above said door panel, said door panel bracket having at least two upper rollers and at least one lower roller engaging said drive member for motion along said drive member.