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
Compositions and processes for forming photovoltaic devices
Fibrous laminate interface for security coatings
Delay interferometer using magneto-optic effect of a variable faraday rotator
Phase-change memory device having multiple diodes
Methods and apparatus for mitigating interference between co-located collaborating radios
Packaging article
Light transformation particle and photobioreactor
  Randomly Featured Patents
Method for relieving bond stress in an under-bond-pad resistor
Bacterial exported proteins and acellular vaccines based thereon
Motor vehicle seat having extendable light
Process and apparatus for wafer-level flip-chip assembly
Wall outlet lock apparatus
Seat for motor vehicles
Image display
Metal display cart with moveable shelving
Method of electroplating a substance over a semiconductor substrate
Flush valve diaphragm