Patents by Inventor Robert Q. Hollingsworth

Robert Q. Hollingsworth 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).

  • System for indicating depletion of sliver from a sliver can
    Patent number: 4021795
    Abstract: A system for indicating a predetermined degree of depletion of sliver from any one of a plurality of sliver cans comprising a source of energy, a plurality of individual indicating devices associated respectively with each can, a common indicating device, a plurality of sensing elements mounted respectively in each can, and circuit means connecting the source of energy, each individual indicating device, the common indicating device, and each sensing device. Each sensing device actuates the associated individual indicating device as well as the common indicating device, the common indicating device being activated independently of all other sensing devices.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: May 3, 1977
    Inventor: Robert Q. Hollingsworth