TECHNICAL ASSESSMENT OF PATENTS RELATED TO UNDERGROUND COAL MINE HAULAGE. INTERIM REPORT, JUNE 30, 1976 TO OCTOBER 31, 1977

In this program over 67,000 patents were covered in four (4) classes: 105-Railway Rolling Stock, 198-Conveyors, Power-Driven, 238-Railways, Surface Track, 299-Mining or In Situ Disintegration of Hard Material. Of these 17,351 patents were examined and 515 detailed evaluations prepared. Brief descriptions of these patents are given in the report. The complete evaluations are presented in the Appendix. The report also presents concepts worthy of further consideration, and recommendations are given for other classes that should be reviewed. (ERA citation 06:000151)

  • Corporate Authors:

    Engineers International, Incorporated

    Downers Grove, IL  United States  60515

    Department of Energy

    1000 Independence Avenue, SW
    Washington, DC  United States  20585
  • Authors:
    • Singh, M M
    • Jaspal, J S
    • LoPresti, R
    • Hair, R T
    • Yates, G A
  • Publication Date: 1978-2

Media Info

  • Pagination: 93 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00336329
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Contract Numbers: AC01-76ET12480
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM