Patents by Inventor Melvin Tsen

Melvin Tsen 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 and method for accurate carton formation
    Patent number: 11173686
    Abstract: A carton forming machine includes a carton blank push up device that receives a substantially horizontal folded carton blank and reorients the folded carton blank from the substantially horizontal orientation to an upright orientation below and in a first direction alignment with a carton opening mechanism. A carton blank positioning apparatus shifts the upright folded carton blank in a second direction, transverse to the first direction, below the carton opening mechanism to define a second direction position of the upright carton blank below the carton opening mechanism before the carton opening mechanism engages the upright carton blank for opening of the upright carton blank.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: November 16, 2021
    Assignee: WEXXAR PACKAGING, INC.
    Inventors: William Chu, David Porteous, Melvin Tsen, Oliver Pringle
  • Carton feeding system and method and related carton forming and sealing machine
    Patent number: 10640308
    Abstract: A carton feeding assembly includes a carton blank storage rack for holding a stack of horizontally oriented folded carton blanks, a carton blank transport device for picking a bottommost folded carton blank from the stack and conveying it along a conveyance path, and a carton blank push up device that reorients the folded carton blank into an upright position suitable for movement into engagement with a case erector.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 5, 2020
    Assignee: WEXXAR PACKAGING, INC.
    Inventors: David S. Porteous, Melvin Tsen
  • APPARATUS AND METHOD FOR ACCURATE CARTON FORMATION
    Publication number: 20190061299
    Abstract: A carton forming machine includes a carton blank push up device that receives a substantially horizontal folded carton blank and reorients the folded carton blank from the substantially horizontal orientation to an upright orientation below and in a first direction alignment with a carton opening mechanism. A carton blank positioning apparatus shifts the upright folded carton blank in a second direction, transverse to the first direction, below the carton opening mechanism to define a second direction position of the upright carton blank below the carton opening mechanism before the carton opening mechanism engages the upright carton blank for opening of the upright carton blank.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventors: William Chu, David Porteous, Melvin Tsen, Oliver Pringle
  • CARTON FEEDING SYSTEM AND METHOD AND RELATED CARTON FORMING AND SEALING MACHINE
    Publication number: 20160159026
    Abstract: A carton feeding assembly includes a carton blank storage rack for holding a stack of horizontally oriented folded carton blanks, a carton blank transport device for picking a bottommost folded carton blank from the stack and conveying it along a conveyance path, and a carton blank push up device that reorients the folded carton blank into an upright position suitable for movement into engagement with a case erector.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 9, 2016
    Inventors: David S. Porteous, Melvin Tsen