Resources Contact Us Home
Apparatus facilitating removal of a kort rudder ring on a marine vessel

Image Number 2 for United States Patent #4111148.

This invention is an arrangement for easily removing a kort rudder ring from the hull of an oil drilling rig for examination of the bearings from time to time. The housing of the lower rudder ring pintle bearing is quickly removable from the outside by a diver, so that the ring can be dropped from its upper bearing housing, moved rearwardly, and lifted by lifting tackle to the surface. Thus examination can take place while the rig is still working at sea.

  Recently Added Patents
Writing implement
Process for the production of electric energy by the excitation and capture of electrons from ground or water sources
Oscillator circuit which compensates for external voltage supply, temperature and process
Method of treating a preceramic material
System and method for detecting an earth ground fault of an external power supply connected to a vehicle
Fragrance compounds
Method and apparatus for monitoring for a radio link failure
  Randomly Featured Patents
Apparatus and methods for limiting debris flow back into an underground base pipe of an injection well
Fast RMS measurement of input I/Q signals in a W-CDMA system
Tandem brake booster
Display package
Systems and methods for providing a scan
Digital power amplifier
Step-slide type cutter knife with automatic lock mechanism
Purge monitor/switch rationality diagnostics
Adjustable rack for containers
Rotating warning bell