3221619

Information

• Patent Grant
• 3221619

• References
• Source

• Patent Number

  3,221,619

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1965
  59 years ago

• CPC

  • E01H5/12 - Apparatus or implements specially adapted for breaking, disintegrating, or loosening layers of ice or hard snow with or without clearing or removing ; Roughening ice or hard snow by means of tools
  • B28D1/181 - using cutters loosely mounted on a turning tool support
  • E01C19/235 - Rolling apparatus designed to roll following a path other than essentially linear
  • E01C23/127 - rotary
  • E02D3/026 - by rolling with rollers usable only for or specially adapted for soil compaction

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 015 - Brushing, scrubbing, and general cleaning
  • 172 - Earth working
  • 299 - Mining or in situ disintegration of hard material