Patents by Inventor Alan Holdsworth

Alan Holdsworth 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).

  • Apparatus for performing operations on a stack of sheets
    Patent number: 4341299
    Abstract: In apparatus for conveying successive stacks of sheets to a station at which an operation is to be performed on the stack, the sheets are advanced by pushing elements (14) to the station, at which a resilient finger (17) projects through a slot (16) in the track. The finger (17) aligns the leading edges of the sheets in the stack. When the stack of sheets is to be advanced, a slide (20) retracts. The finger (17) is pivotally mounted on the slide and its upper inclined edge engages the bottom rear corner of the slot when the slide is retracted, causing the finger to sink below the track until the slide is returned in time for the alignment of the next stack.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: July 27, 1982
    Assignee: McCorquodale Machine Systems Limited
    Inventors: Roger Walker, Alan Holdsworth