2895454

Information

• Patent Grant
• 2895454

• References
• Source

• Patent Number

  2,895,454

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1959
  65 years ago

• CPC

  • E21D15/22 - with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure
  • E21D15/306 - by means of a liquid
  • E21D15/44 - Hydraulic, pneumatic, or hydraulic-pneumatic props
  • E21D15/45 - having closed fluid system

• US Classifications

  • 091 - Motors: expansible chamber type
  • 417 - Pumps