Patents Assigned to J. R. Clancy, Inc.
  • Theater rigging system
    Patent number: 7766308
    Abstract: A theater rigging assembly having a beam, which is attached to structural support members of a theater or other performing arts venue. The assembly further includes a winch assembly and head block that can be positioned at any point along the beam and selectively fixed in position. The winch portion includes cables for raising and lowering battens or other loads. The head block includes head sheaves, which redirect the cables to loft sheaves that are selectively attached to the beam. The head sheaves are diagonally displaced to separate the cables. The winch portion includes a motor, a gear box, a drum and a brake. The brake includes a ratchet and two brake disks. It uses at least one friction surface that contacts at least one of the brake disks to cause a pawl to engage or disengage from the ratchet.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: August 3, 2010
    Assignee: J. R. Clancy, Inc.
    Inventors: Stephen J. Kochan, Peter V. Svitavsky, Thomas J. Walsh, III, Thomas S. Young
  • Counterweight assisted winch
    Patent number: 7264228
    Abstract: The invention is a motorized winch which can be retrofitted into existing manually operated systems that use counterbalancing weights. The counterbalancing weight will be fixed at 50% of the maximum capacity of the set. The winch is rated at 50% of the maximum capacity of the set. By using the winch in a closed loop configuration, it will operate the set at any load from 0 to 100% of its rated capacity, without the need to ever adjust the counterbalancing weights.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: September 4, 2007
    Assignee: J. R. Clancy, Inc.
    Inventors: Rodney F. Kaiser, Thomas S. Young
  • Arbor guide shoe assembly for counterweight system
    Patent number: 6855063
    Abstract: An arbor guide shoe assembly for slidably interconnecting an arbor top plate or bottom plate with a pair of spaced rails. The guide shoe assembly has a rail contacting channel which defines a plurality of operable rail capturing distances, and an elongate slot for orienting the guide shoe assembly with a plurality of orientations with respect to the counterweight arbor.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: February 15, 2005
    Assignee: J. R. Clancy, Inc.
    Inventors: Michael S. Murphy, Rodney F. Kaiser
  • Counterweight arbor guide system
    Patent number: 6537155
    Abstract: A method for securing a counterweight guiding system in performance rigging in places of entertainment. An elongate guide rail has a cross-section which interlocks with a clip, the clip extending transversely beyond the guide. The guide rail is secured to a support by fastening the clip to the support, the guide itself not requiring any specific fastening points.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: March 25, 2003
    Assignee: J. R. Clancy, Inc.
    Inventors: Walker Steve, Michael S. Murphy