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
Methods and systems for creating a tail risk hedge index and trading derivative products based thereon
Code reading apparatus, sales registering apparatus, and sales registering method
Image processing apparatus and method having defective pixel detection and correction ability
Radiation protective garment with forced ventilation and method
Method and apparatus for efficiently inserting fills in an integrated circuit layout
Jet pump and reactor
Lubricating oil compositions
  Randomly Featured Patents
Process for preparing a polymer mixture
Variable park and wiping range mechanism for windshield wiper system
Rotary engine
Apparatus for providing two-way communication in underground facilities
Method and apparatus for accelerating through-the pins LBIST simulation
Data memory cache unit and data memory cache system
Flow control for very bursty connections in high speed cell switching networks
Narrow spectral width high power distributed feedback semiconductor lasers
Rinsing compositions
Process for the preparation of halogen-containing aromatic compounds