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Passenger boarding bridge

  • US 5,704,086 A
  • Filed: 01/02/1996
  • Issued: 01/06/1998
  • Est. Priority Date: 01/02/1996
  • Status: Expired due to Term
First Claim
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1. A passenger boarding bridge having inner and outer tunnels, said inner tunnel telescoping inside the outer tunnel and defining an overlapping end on each of said tunnels, each tunnel having side walls, said inner tunnel having an outboard end and having side walls subjected to compressive forces, a roof, including and upper cross member, and a floor, said side walls, roof and floor supported by beams extending along each side of said floor, said passenger boarding bridge comprising:

  • flanges having upper and lower surfaces, said flanges secured to each of said beams in the inner and outer tunnels;

    a first roller assembly carried by the overlapping end of said inner tunnels, said first roller assembly attached to the outboard end of the inner tunnel beams and rollingly engaging said upper surfaces of said outer tunnel flanges; and

    a second roller assembly carried by said overlapping end of said outer tunnel and normally rollingly engaging said upper surfaces of said inner tunnel flanges, whereby said compressive forces on said side walls of said inner tunnel are compressive forces not resulting from said overlapping of said inner and outer tunnels.

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