Patents by Inventor Thomas Desmond Bishop

Thomas Desmond Bishop 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: 4027873
    Abstract: A sheet handling device, especially for stacking sheets, includes overhead conveyor belts with a suction chamber to hold sheets against their undersides and mechanism for displacing the sheets from the belts onto a table. This mechanism includes a set of fingers which, as well as being displaceable through the plane of the belts, are also displaceable in the direction of sheet feed to enable them to engage the sheets while travelling in the same direction at substantially the same speed and thereafter slow down the sheets and displace them towards the table.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: June 7, 1977
    Assignee: The Deritend Engineering Company Limited
    Inventor: Thomas Desmond Bishop
  • Patent number: 3963160
    Abstract: The invention provides apparatus for producing printed and cut blanks from continuous webs of cardboard or the like, which avoids wastage between successive blanks when the length of the blank is not equal to the periphery of the treatment rolls of the apparatus by using two coupled accelerators which adjust the position of the web after each complete operation.
    Type: Grant
    Filed: November 12, 1974
    Date of Patent: June 15, 1976
    Assignee: The Deritend Engineering Company Limited
    Inventor: Thomas Desmond Bishop
  • Patent number: 3941038
    Abstract: The invention provides a forme construction for a die cutting apparatus in which cutting rule is supported in slots in a relatively massive support plate by using sinuous resilient elements lying between walls of slots in the support plate and the sides of the rule.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: March 2, 1976
    Assignee: The Deritend Engineering Co. Ltd.
    Inventor: Thomas Desmond Bishop