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
Non-volatile semiconductor memory and data processing method in non-volatile semiconductor memory
Automatically capturing images that include lightning
System for determining potential lot consolidation during manufacturing
Image heating apparatus
Extract of Vanilla planifolia
Programming of DIMM termination resistance values
  Randomly Featured Patents
Magnetic disk device and disk access method therefor
Refuse container retainer
Evaporative heat exchanger of streamline cross section tube coil with less even without cooling fins
Optical recording method and apparatus
Direct access to random redundant logic gates by using multiple short addresses
Production of naphtha and light olefins
Retarding system that retards motion of power source
Security assembly for a sliding glass door
Method for operating a brake system of a motor vehicle
Methods and apparatus for caching network data traffic