Resources Contact Us Home
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
Data processing apparatus and data processing method for reducing an uneven color made up of two or more ink colors
Methods and systems for assessing sales activity of a merchant
Method of transmitting data using spatial multiplexing
Administrable compositions
Methods of preventing and treating viral infections by inhibiting the deISGylation activity of OTU domain-containing viral proteins
Maintenance tool of control systems
Satellite communication network
  Randomly Featured Patents
Image reproducing apparatus controlled in response to detected density of an original image
Integrated access device, associated modem box and splitting module
Consistent colour calibration in LED-based lighting infrastructure
Process for preparing 1,2-fused-1,3-dinitrogen-heterocyclic compounds
Multi-resistive state memory device with conductive oxide electrodes
Tricycle with front and rear steering
Soft magnetic powder
Adhesive compositions for use in surgical therapy
Dynamically reconfigurable interconnection
System and method for language extraction and encoding utilizing the parsing of text data in accordance with domain parameters