Force-transmitting device

• US 3,033,525 A
• Filed: 10/28/1958
• Issued: 05/08/1962
• Est. Priority Date: 10/28/1958
• Status: Expired due to Term

• Current Assignee: James H. Johnson
• Original Assignee: James H. Johnson
• Inventors: Johnson, James H.
• Application Number:
  US03/770,173
• Time in Patent Office: 1,288 Days
• US Class Current: 254/107
• CPC Class Codes: B66F 1/025 the devices being operated by fluid pressure B66F1/08 takes precedence
• CPC Class Codes: E21B 15/003 adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
• CPC Class Codes: F16H 21/08 by pushing a reciprocating rod out of its operative position
• CPC Class Codes: Y10T 74/1598 Driven ratchet-bar and power dog

Claims