Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Process and apparatus for automatically engraving stone memorial markers










Image Number 4 for United States Patent #5512005.

The present invention relates to process and apparatus for automatically engraving stone memorial markers comprised of granite or marble. The markers have their polished facing surfaces covered with a cut-out blast-resistant stencil having prescribed lettering, numerals, decorative patterns and the like. The markers are conveyed through a sand blast chamber at a uniform rate and plural direct-air-feed nozzles are moved uniformly transversely thereover to effect precisely uniform engraving of the facing surfaces. The engraving is more precisely defined to a prescribed uniform depth with finer detail than heretofore possible by manual or other automated single-nozzle methods. The plural nozzles are essentially continuously fed with pressurized air and blast cutting media to obtain faster and more accurate engraving.








 
 
  Recently Added Patents
Method and apparatus to maintain welding current to compensate for deterioration of welding contact tip
Computer network running a distributed application
Polymer-encapsulated colorant nanoparticles
Targeted gene deletions for polysaccharide slime formers
Selecting from a plural of energy saving modes
System and method for netbackup data decryption in a high latency low bandwidth environment
Catecholic butanes and use thereof for cancer therapy
  Randomly Featured Patents
TV Camera with focus detecting means
Precision inductive devices and methods
Skip downshift control apparatus for automatic transmission
Method of fabrication of translucent dental restorations without opacious substructures
Necklace or the like having an ornament
Sealing ring for multi-way valves
System and method for water injection in a turbine engine
Color filter for transflective type liquid crystal display
Method for shaping a seamless aluminum wheel rim
Portable telephone