Patents by Inventor Alan L. Bopp

Alan L. Bopp 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: 4325470
    Abstract: A ratchet lever hoist (10) which includes an overload clutch (19) enclosed within the hoist handwheel (16). The handwheel is driven through a spline connection with the input drive hub (24) of the hoist, and carries a plurality of first clutch disks 94. Second clutch disks (100) are carried by a load brake drive member (34) and frictionally engage the clutch disks (94) through friction disks (106) bonded to the second clutch disks (100). The clutch is preloaded to a torque capacity corresponding to the rated load of the hoist or a predetermined value over the rated load, such that the clutch will slip, preventing rotation of the load brake drive member when the torque capacity of the clutch is exceeded.
    Type: Grant
    Filed: February 15, 1980
    Date of Patent: April 20, 1982
    Assignee: Eaton Corporation
    Inventor: Alan L. Bopp