Resources Contact Us Home
Auxiliary emergency escape device of elevator

Image Number 4 for United States Patent #5878845.

An elevator is provided with an auxiliary escape device consisting of a manually-operated compression-decompression apparatus located at an emergency window of the elevator cab. The compression-decompression apparatus has a fluid pipe and a compression or decompression valve which is fastened at one end thereof with an oil pressure mechanism. In the event of an accident or power outage causing the elevator to incapacitate, the compression-decompression apparatus is exerted on by the pressure of a person's hand so as to actuate the compression or decompression valve, thereby causing the oil pressure cylinder to move up or down to drive the elevator cab upwards or downwards to a desired floor where the trapped passengers can escape.

  Recently Added Patents
Systems and methods for printing images outside a normal color gamut in image forming devices
Organic EL display device and method for manufacturing the same
Generating and using checkpoints in a virtual computer system
Electronic device
Method for evaluating performance characteristics of dental curing lights
Vehicle display system or projection display for a motor vehicle, and calibration method
  Randomly Featured Patents
Method and apparatus for improving the performance of a database management system through a central cache mechanism
Communication system for location sensitive information and method therefor
Solar tracking and concentration device
Capacitive position sensor
Stabilization of pyrrolopyrrole pigments
Process for preparing form A of atazanavir sulfate
Dual P-trap and valve condensate collection and treatment system
Railway lubricating oil
High efficiency multi-junction solar cells
Process and apparatus for replacing cathodes