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
Pre and post-paid real time billing convergence system
Magnesium metal-air battery
Cylindrical LED fixture
Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system
Morphinan compounds
Switchgear operating apparatus and three-phase switchgear
Keypad assembly for electronic devices
  Randomly Featured Patents
Bifidobacterial species
Method of making bipolar junction transistor
Multi-color molding article, multicolor molding method and substrate storage container
Glasses-free 3D advertising system and method
Semiconductor device and manufacturing method thereof
Computer-telephone integration system
Mosaic quantification by birefringence measurement
Anti-equine Fc epsilon receptor alpha chain antibodies and methods to detect IgE
Intake port means for extracting engine exhaust gas for recirculation
Apparatus of shielding VLF electric field emitted from front face of CRT in video appliance