Patents Assigned to Ullman Devices Corporation
  • Patent number: 5999074
    Abstract: A magnetic head for a magnetic pick-up tool includes a magnet having a pick-up surface and a sleeve member having an open end and being slidably positioned over the magnet, the sleeve member being made of a material acted upon by the magnet such that the magnet exerts a force upon the sleeve for maintaining the sleeve in a rest position wherein the open end extends beyond the pick-up surface, wherein the sleeve is slidable in a direction away from the pick-up surface and against the force to a withdrawn with respect to the magnet. A magnetic pick-up tool including a magnet head is also disclosed.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: December 7, 1999
    Assignee: Ullman Devices Corporation
    Inventors: Edward S. Coleman, Jr., Stanley Stromski
  • Patent number: 5945901
    Abstract: A magnet head for a magnetic pick-up tool includes a magnet having a pick-up surface and a sleeve member having an open end and being slidably positioned over the magnet with the pick-up surface exposed through the open end, the sleeve member being made of a material acted upon by the magnet such that the magnet exerts a force upon the sleeve for maintaining the sleeve in a rest position wherein the open end extends beyond the pick-up surface, wherein the sleeve is slidable in a direction away from the pick-up surface and against the force to a withdrawn with respect to the magnet. A magnetic pick-up tool including a magnet head is also disclosed.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: August 31, 1999
    Assignee: Ullman Devices Corporation
    Inventors: Edward S. Coleman, Jr., Stanley Stromski
  • Patent number: 5301822
    Abstract: A magnetic tool holder includes a generally elongate body member having a first surface and a second surface and having a longitudinal channel running along at least a portion of the first surface; a receiving magnet, disposed in the longitudinal channel; and detent structure provided on the receiving magnet and the longitudinal channel, whereby the receiving magnet is held in place in the longitudinal channel when the detent structure on the receiving magnet and the longitudinal channel are engaged. A mounting magnet is disposed on the second surface, whereby the tool holder can be magnetically mounted to a metallic work surface. The detent structure may preferably include at least one indentation disposed along at least one side of the receiving magnet, and at least one projection disposed along at least one inner side surface of the longitudinal channel for engaging the indentation of the receiving magnet.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: April 12, 1994
    Assignee: Ullman Devices Corporation
    Inventors: Edward S. Coleman, Richard Scalise
  • Patent number: D413497
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: September 7, 1999
    Assignee: Ullman Devices Corporation
    Inventors: Edward S. Coleman, Jr., Stanley Stromski
  • Patent number: D430699
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: September 5, 2000
    Assignee: Ullman Devices Corporation
    Inventor: Edward S. Coleman, Jr.