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
Transcription factor
Semiconductor device and method for manufacturing the same
Exposure method, exposure apparatus, and method for producing device
Dual gate electronic memory cell and device with dual gate electronic memory cells
Microporous membranes and methods for producing and using such membranes
Multiplanar image displays and media formatted to provide 3D imagery without 3D glasses
Push to release cover for a portable electronic device
  Randomly Featured Patents
Method for testing the quality of a metallic coating
Toothbrush with replaceable bristle head
Method and apparatus providing an amplitude independent automatic frequency control circuit
Content routing service protocol
Back projection screen in a video projector
Balloons and balloon valves
Apparatus for and a method of constructing a tunnel
Method for forming masks comprising silicon nitride and novel mask structures produced thereby
Method for setting black reference data used for excess exposure, and image reading apparatus
Pressure switch mechanism and air compressor using the same mechanism