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
Combined tractor windows and intake and exhaust
Processes for converting gaseous alkanes to liquid hydrocarbons using microchannel reactor
Method for performing a raid operation in a data storage system
Image forming apparatus having rotary developing unit, method for controlling, and storage medium
System and method for electronic moving map and aeronautical context display
Method and system for programming multi-state memory
Retrofit kit, circuitry and method for reconfiguring a tap changer to avoid electrical arcing
  Randomly Featured Patents
Touchtone electronic steering wheel
Tungsten carbide tools treated with group IVB and VB metals
Frequency characteristics measuring device
Frame structure of vehicle body
Tear-stop score encircling single opening carrier handles
Recoil-counter-recoil system
Computer controlled apparatus and method for inserting mail into envelopes
Circuit for forming periodic pulse patterns
Method and apparatus for band class acquisition and assignment in a wireless communication system
Antiviral 1,2,3,4-tetrahydro-1,-alkano naphthalenamine derivatives