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
Providing multiple decode options for a system-on-chip (SoC) fabric
Variants of a family 44 xyloglucanase
Cryptographically generated addresses using backward key chain for secure route optimization in mobile internet protocol
Sensor chip, sensor cartridge, and analysis apparatus
Method for forming ventilation holes in an electrode plate
Light-emitting device
Sensor packages and method of packaging dies of differing sizes
  Randomly Featured Patents
Process for producing aluminum-filled contact holes
Mounting method for optical member and optical module
Ornamental design for a tricycle
Forceps
Graft copolymer and process for producing the same
Apparatus and methods for IOL insertion
Estimating equivalent bandwidth capacity for a network transport device using on-line measurements
Methods of making and using memory card with enhanced testability
Telephone base with display
Computerized reading display