Patents by Inventor Robin WALLMAN

Robin WALLMAN 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).

  • Retention mechanism in a dispenser and system comprising a retention mechanism and an end plug
    Patent number: 8490913
    Abstract: A retention mechanism (40) for a dispenser for retaining an end plug (10) of an exchangeable roll of material includes an insertion slot extending between a receiving end (54) and a seating region (50) for inserting a bearing pin (22) of the end plug. The bearing pin has at least a first portion (26) with a first diameter, and a second portion (28) with a second diameter smaller than the first diameter. A pin discriminator (46) is at least at the receiving end and narrows the receiving end so only bearing pins can enter the receiving slot which have a maximum outer diameter in the second portion which equals the second diameter. A rejecting slot (48) extends from the seating region and is dimensioned so only bearing pins with a predetermined maximum diameter in the first portion which is smaller than the first diameter will enter the rejecting slot.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: July 23, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: John S. Formon, Craig Weber, Robin Wallman
  • RETENTION MECHANISM IN A DISPENSER AND SYSTEM COMPRISING A RETENTION MECHANISM AND AN END PLUG
    Publication number: 20120104144
    Abstract: A retention mechanism (40) for a dispenser for retaining an end plug (10) of an exchangeable roll of material includes an insertion slot extending between a receiving end (54) and a seating region (50) for inserting a bearing pin (22) of the end plug. The bearing pin has at least a first portion (26) with a first diameter, and a second portion (28) with a second diameter smaller than the first diameter. A pin discriminator (46) is at least at the receiving end and narrows the receiving end so only bearing pins can enter the receiving slot which have a maximum outer diameter in the second portion which equals the second diameter. A rejecting slot (48) extends from the seating region and is dimensioned so only bearing pins with a predetermined maximum diameter in the first portion which is smaller than the first diameter will enter the rejecting slot.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 3, 2012
    Applicant: SCA TISSUE NORTH AMERICA LLC
    Inventors: John S. FORMON, Craig WEBER, Robin WALLMAN