Resources Contact Us Home
Airport bridge and lift

Image Number 14 for United States Patent #6928684.

A lift is coupled to the outer cab or rotunda of a telescoping bridge. The lift has a carriage that can be moved by a cable and a motor upward or downward and which includes a platform that has sensing means for controlling the motor for stopping downward movement of the carriage when it engages the ground. An electrically operated safety catch is provided to prevent the carriage form falling in the event the cable breaks. A safety system is provided which prevents the bridge from moving if the carriage is not in the up position and its door is not closed.

  Recently Added Patents
Onium salt-containing polymer
Carbon nanotube fiber spun from wetted ribbon
Portable multimedia player
Use of tris(hydroxymethyl) aminomethane for the stabilization of peptides, polypeptides and proteins
Polypropylene bottles
System and method for order placement in an electronic trading environment
LCD television set capable of external connection with application processor
  Randomly Featured Patents
Liquid crystal display backlight and liquid crystal display device
System and method for shaping pulses of optical radiation
System and method for electronically processing commercial transactions based upon threshold amount
Dual nipple pacifier
Mass transport of indium phosphide
Method and system for storing information regarding a selected view of a three dimensional image generated from a multi-frame object
Integrated circuit interconnect fabrication systems
Hitch adapter for towing a fifth wheel trailer
Infant wall seat and changing table assembly
Artificial snow making method