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
Method and device for operating a vehicle having a hybrid drive
Molecular sieve
Reduction of HMF ethers with metal catalyst
Catalytic pyrolysis using UZM-44 aluminosilicate zeolite
High frequency vertical spring probe
Analyte assaying by means of immunochromatography with lateral migration
Semiconductor power amplifier
  Randomly Featured Patents
Camouflage garment
Microwave susceptible insulated label and packaging material
PCR primers for detection of plant pathogenic species and subspecies of acidovorax
System and method for secure multiple wavelength communication on optical fibers
Rational synthesis of heteroleptic lanthanide sandwich coordination complexes
Ratio logic gate with a current mirror
Method of searching a database for an item of an assembly drawing
Traction device
Hydraulic power steering gear assembly with unloading valve
Secondary position feedback control of a robot