Patents by Inventor Phillip W. Kary

Phillip W. Kary has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7284743
    Abstract: A hoist limiting system (15) comprising a frame (16), a hoist drum (17) supported by the frame and rotatable about a hoist axis (x-x), a hoist driver (19) supported by the frame and configured to rotate the hoist drum in opposite upward (30) and downward (31) directions about the hoist axis, a hoist line (18) in engagement with the hoist drum such that the hoist line winds in the upward or downward direction in response to rotation of the hoist drum, at least one gear (20) mechanically coupling the hoist driver and hoist drum and configured to rotate about a gear axis (x-x), the gear having a face (21) that rotates about the gear axis in a upward or downward direction in response to rotation of the hoist drum, a first proximity limit switch (26) supported by the frame adjacent the rotating face such that the rotating face moves relative to the proximity switch and a second proximity limit switch (28) supported by the frame adjacent the rotating face such that the rotating face moves relative to the second pro
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: October 23, 2007
    Assignee: Columbus McKinnon Corporation
    Inventors: James J. Brighton, Samuel J. Darling, Phillip W. Kary