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
Storage apparatus and method including page discard processing for primary and secondary volumes configured as a copy pair
Vehicle and method for controlling vehicle
Method and system for accomplishing user equipment purge
Semiconductor device manufacture in which minimum wiring pitch of connecting portion wiring layer is less than minimum wiring pitch of any other wiring layer
Method for conformal plasma immersed ion implantation assisted by atomic layer deposition
Delta-sigma AD converter circuit and battery pack
Personal alarm device for headwear for proximity detection
  Randomly Featured Patents
Ultrasonic data communication system
Benzimidazolidinone derivatives
Amplifier and driving circuit using the same
Coin sorting apparatus with rotating disc
Automatic tool changer for a lathe
Golf practice putting device
Laser punctal occlusion
Benzopyran-2-carboxylic acids in the prevention of asthmatic symptoms
Cooling layout for a turbine blade, turbine blade included therein, turbine and aircraft engine equipped therewith
Multimedia based security systems