Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
High performance bearing pad for thrust bearing










Image Number 7 for United States Patent #5253939.

Cylindrical bearing pads are insertable into bearing pad recesses formed in a receiving surface of a bearing pad retainer in a load-carrying structure. The bearing pads have an insertion end which is fixed into the bearing pad recess by brazing or by interference fitting and a bearing end which projects from the receiving surface and terminates in a bearing face. The bearing face has a periphery which encircles the bearing face and an indentation having a perimeter formed centrally in the bearing face. An annular flattened area encircles the indentation forming an effective bearing contact area between an outer border of the flattened area and the perimeter of the indentation. When the indentation is filled with drilling fluid, lubrication is provided to an opposed bearing face of an opposing bearing pad. The indentation can be filled with drilling fluid or some other material with a higher heat storage capacity than polycrystalline diamond to provide temperature modulation for storing heat produced at the bearing face. When filled with a material, the indentation also serves to dissipate heat to reducing the length of a path of heat when the heat is conducted to cooler areas of the bearing face. Alternate embodiments include bearing faces with single or plural indentations of various shapes.








 
 
  Recently Added Patents
Method and apparatus for accessing and downloading information from the internet
Methods of forming activated carbons
Dental plier
Semiconductor power amplifier
Systems and methods for vehicle cruise control
Categorizing bit errors of solid-state, non-volatile memory
Method and apparatus for executing load distributed printing
  Randomly Featured Patents
Novel method for preparing a high purity alumina
Holder and dispenser for hearing aid batteries
Method and apparatus for determining the strength path of a mortar or concrete mix
Apparatus for carrying tool on coil tubing with shifting sub
Portable urinal
Semiconductor device and manufacturing method thereof
Apparatus for continuously recycling synthetic material, preferably polymers
Dual-state nutritional medium for the transport and maintenance of cells
Amidino compounds, their manufacture and method of treatment
Dual-gate transistor display