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 efficiently inserting fills in an integrated circuit layout
Digital X-ray detector arrangement and digital X-ray imaging method
Semiconductor IC including pulse generation logic circuit
Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same
Image processing apparatus, remote management system, license update method, and computer program product
Format for providing traffic information and a method and apparatus for using the format
Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria
  Randomly Featured Patents
Method for arranging an optical module in a measuring apparatus and a measuring apparatus
Drawer slide
Document based character ambiguity resolution
Coupled housing type connector
Composition for dyeing human keratin materials, comprising at least one fluorescent dye and at least one associative polymer, process therefor and use thereof
Topical treatment of acne with combined herbal extracts and minerals
Information gathering system and method
Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives
Integrated circuit having reduced pin count
Small spot X-ray fluorescence (XRF) analyzer