Resources Contact Us Home
Pipeline repair habitat

Image Number 7 for United States Patent #5775844.

Embodiments of a pipeline repair habitat are disclosed which may be used to facilitate the repair of vertical underwater pipelines or risers. Two hollow, half-cylindrical shells are provided which form a stable, rigid shell around the section of pipe to be repaired. Structure is provided for introducing an atmosphere into the habitat which is breathable while most repairs are accomplished. Under certain conditions a non explosive atmosphere which is not breathable is introduced into the habitat so that welding may be safely performed. Various useful accessories are provided including an elevator by which a person accomplishing repairs may move up and down within the pipeline repair habitat.

  Recently Added Patents
Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
System and method for transferring data in storage controllers
Electronic hand-held device
Systems and methods for vehicle cruise control
Power converter with a variable reference voltage and inrush current limiting
Electro-optical device, method of manufacturing the same, and electronic apparatus
Information processing device and display control method
  Randomly Featured Patents
Polarity switching short circuiting arc welding method
Method and means for controlling the operation of fluidized bed combustion apparatus
Masonry level apparatus
Backlit graphic display device
Dual Capacitor
Transmitter for frequency shift keyed modulation
Filtering apparatus
Booklet slip cover
Surface light source device and liquid crystal display
Gas analyzer for determining impurity concentration of highly-purified gas