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
Vehicle inertial sensor systems
Power converter with a variable reference voltage and inrush current limiting
System and method for passing PLC signals from a first electrical line to a second electrical line
Antenna arrangement and antenna housing
Therapeutic compositions and methods
Systems and methods for optimizing capital structure of a financial institution
Method for treating hyperglycemia
  Randomly Featured Patents
Methods and apparatuses for a sense amplifier
Spin based magnetic sensor
Apparatus and method for calibrating mixer offset
Permanently-installed test fitting
Dual-rotor motor having heat dissipation
Manufacturing method of semiconductor device and manufacturing method of mask
Punch actuator monitoring system and method
Uni-directional protocol
Portable exhibit display