3918213

Information

• Patent Grant
• 3918213

• References
• Source

• Patent Number

  3,918,213

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1975
  49 years ago

• CPC

  • B24B55/00 - Safety devices for grinding or polishing machines Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
  • F01B25/06 - responsive to speed
  • F01B25/16 - Safety means responsive to specific conditions
  • G05D13/04 - providing for emergency tripping of an engine in case of exceeding maximum speed

• US Classifications

  • 451 - Abrading
  • 418 - Rotary expansible chamber devices