Patents Assigned to Dupuy Engineering (SA)
  • Device for assembling cuttings more particularly for the produciton of packing boxes
    Patent number: 4913691
    Abstract: This invention relates to a device for the assembling of cuttings, more particularly for the production of packing boxes, of the type including a plurality of work places arranged along a main vacuum conveyor, the work places consisting mainly of a first margin stop system (8) with at least one stack loader (66) and one conveyor (9) intended to position a first cutting on said main conveyor, at least one gumming machine (10) designed to apply a film of glue on at least a portion of the first cutting and at least a second margin stop system (11) with a stack loader and a conveyor intended to position a second cutting on the first cutting.The main conveyor according to this invention is a linear horizontal type with at least one notched belt (2), guided in a slide (3) whose depth is slightly less than the thickness of the notched belt (2).
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: April 3, 1990
    Assignee: Dupuy Engineering S.A.
    Inventor: Francois Chaygneaud-Dupuy
  • Display boxes
    Patent number: 4826004
    Abstract: This invention relates to a display box of the kind comprising a part of an opaque material such as cardboard and an opening overlapping or straddling at least one edge of the box and which is shut off by a sheet of a plastics material. According to the invention the sheet is formed from a rigid plastics material.The sheet may be formed by a single sheet and have two preparatory or incipient folds produced by pre-scoring or pre-grooving along the lines corresponding to the edges which are to be produced, the edges of the plastics sheet having notches at the extremities of each incipient fold.The invention also provides a method of and apparatus for manufacturing the box.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: May 2, 1989
    Assignee: Dupuy Engineering S.A.
    Inventor: Francois Dupuy
  • Circular machine for automatic manufacturing of display boxes
    Patent number: 4713046
    Abstract: The invention relates to the Cardboard Industry. More specially it relates to a machine for manufacturing of display packages of the type comprising an opening straddling at least one edge and which is closed by a stiff, transparent sheet of plastic material. The device according the present invention comprises a horizontal circular plate, a plurality of work stations which feed the suction boxes positioned on the said plate which permit to move the blanks from one of the work stations to the other. It comprises at least stations for the cardboard blanks, for the plastic blanks, for the coating of the blanks, for the sealing and/or grooving of the plastic blanks and for picking up the assembled blanks.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: December 15, 1987
    Assignee: Dupuy Engineering, S.A.
    Inventor: Francois Dupuy
  • Method and apparatus for making display boxes
    Patent number: 4664648
    Abstract: This invention relates to a display box of the kind comprising a part of an opaque material such as cardboard and an opening overlapping or straddling at least one edge of the box and which is shut off by a sheet of a plastics material. According to the invention the sheet is formed from a rigid plastics material. The sheet may be formed by a single sheet and have two preparatory or incipient folds produced by pre-scoring or pre-grooving along the lines corresponding to the edges which are to be produced, the edges of the plastics sheet having notches at the extremities of each incipient fold. The invention also provides a method of and apparatus for manufacturing the box.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 12, 1987
    Assignee: Dupuy Engineering (SA)
    Inventor: Francois Dupuy