Patents by Inventor James W. Essary

James W. Essary 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).

  • Slitter, wind-up clutch assemblies
    Patent number: 4541579
    Abstract: A clutch means particularly useful in the rapid and precise alignment of a large number of rotating members such as take-up reels on a single shaft. Each rotating member, e.g., each reel-hub member, is positively engaged by a resilient and non-fouling spring member which is readily inserted into conventional clutch means and which comprises a cam means to facilitate the sliding passage of a number of reels onto a shaft as well as locking means to couple the clutch means and the reels to be rotated thereon.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: September 17, 1985
    Assignee: Graham Magnetics Incorporated
    Inventors: James W. Essary, Robert A. Sanderson