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
Trash bag retention device
System for alarming upon occurrence of secession of smart key for vehicles
Agent for expelling parasites in humans, animals or birds
Method of sending CTI messages in a communication system
Process for producing polyols
Focus detection device and imaging apparatus having the same
Model matching for trace link generation
  Randomly Featured Patents
Choker straightener
Semiconductor memory device
Soybean variety 95R51
Damped control of a micromechanical device
Methods and apparatus for transitioning between states
Winding device for flexible, flat material, especially printed products
Implementing custom activities in a workflow
Coupling mechanism for the alternate manual and automatic adjustment of a varifocal objective
Quartz halogen flood light assembly having improved housing