Patents Assigned to Davenport Tool Co.
  • Ratchet wrench with double swivelling drive shaft
    Patent number: 4108027
    Abstract: The socket drive shaft of a ratchet type wrench is slidable to project from either side of the wrench to receive a socket. The drive shaft itself is formed in a generally "hour-glass" shape so that the shaft can swivel relative to the wrench and simultaneously a socket can swivel relative to the shaft.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: August 22, 1978
    Assignee: Davenport Tool Co.
    Inventor: Paul E. Lenker
  • Plier type ratchet wrench
    Patent number: 3941017
    Abstract: A plier-type ratchet wrench of simple, economical and robust construction employs a single rigid thrust rod or bar to operate the ratchet drive and a single extensible helical spring which both biases the operating handle to its normal position and keeps the thrust rod and a pawl engaged with the ratchet.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: March 2, 1976
    Assignee: Davenport Tool Co.
    Inventors: Paul E. Lenker, Raymond G. Voss