Trammel-pitman Patents (Class 74/62)
  • Guidewire device and method
    Publication number: 20020043118
    Abstract: The present invention is a multi-layer guidewire which has a first core metal and a secondary metal formed on the outer periphery of the core. During manufacture the composite structure is twisted providing superior mechanical properties to the finished guidewire.
    Type: Application
    Filed: June 22, 2001
    Publication date: April 18, 2002
    Inventor: Timothy J. Claude
  • Drive for a pilger cold rolling mill
    Patent number: 5076088
    Abstract: A drive for a pilger cold rolling mill which includes a crankshaft and a connecting rod. The connecting rod provides a balancing or equilibrium of moments while the crankshaft provides a balancing or equilibrium of mass.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: December 31, 1991
    Assignee: Mannesmann AG
    Inventors: Herman J. Klingen, Josef Gerretz
  • Mechanism to reciprocate and rotate a ram
    Patent number: 4601213
    Abstract: A device for rotating and reciprocating a ram by rotating the ram at the end of each reciprocation. The device includes a pair of supports for the reciprocating means and a pair of supports for the rotating means. Each pair of supports has a set of perpendicular grooves in which a sliding block reciprocates in each groove. The blocks are securely fastened to one another by means of a tie arm. Both the reciprocating means and the rotating means are synchronously driven with a timing belt.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: July 22, 1986
    Inventor: Charles R. Kimball