Lug wrench with high mechanical advantage

• US 3,392,608 A
• Filed: 02/14/1967
• Issued: 07/16/1968
• Est. Priority Date: 02/14/1967
• Status: Expired due to Term

• Current Assignee: Harmon, Darrell R., Robert P. Schanen
• Original Assignee: Harmon, Darrell R., Robert P. Schanen
• Inventors: Schanen, Robert P., Harmon, Darrell R.
• Application Number:
  US04/616,054
• Time in Patent Office: 518 Days
• US Class Current: 81/57
• CPC Class Codes: B25B 17/02 providing for torque amplification
• CPC Class Codes: B25B 23/0078 Reaction arms
• CPC Class Codes: B60B 29/005 hand-driven operating with multiplicated forces B60B29/004 takes precedence; hand-driven gear-operated wrenches per se B25B17/00, with torque amplification B25B17/02

Claims