Patents by Inventor Carll D. Vrooman

Carll D. Vrooman 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: 5125604
    Abstract: A system is provided for automatic consecutive opening and dispensing thermoplastic grocery or retail product bags of the T-shirt type while providing for supporting consecutive bags in an open position and for facilitating easy removal of the consecutive loaded bags. The system includes a pack of bags and a rack of the type having outwardly extending support arms and a retaining means for receiving the bag pack by mounting the bag handles on the support arms of the rack through apertures therein and mounting a detachable bag mounting tab on the rack retaining means. Each of the bags has disengageable adhesive between each bag which has a predetermined severance strength greater than the severance strength of the mounting tabs. The rack support arms define a predetermined resistive force in laterally-extending outer portions against sliding of the bags therealong which is greater than the severance strength of the adhesive.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: June 30, 1992
    Assignee: Sonoco Products Company
    Inventors: Carll D. Vrooman, Harry B. Wilfong, Jr.
  • Patent number: 5020750
    Abstract: A system is provided for automatic consecutive opening and dispensing thermoplastic grocery or retail product bags of the T-shirt type while providing for supporting consecutive bags in an open position and for facilitating easy removel of the consecutive loaded bags. The system includes a pack of bags and a rack of the type having outwardly extending support arms and a retaining means for receiving the bag pack by mounting the bag handles on the support arms of the rack through apertures therein and mounting a detachable bag mounting tab on the rack retaining means. Each of the bags has disengageable adhesive each bag which has a predetermined severance strength greater than the severance strength of the mounting tabs. The rack support arms define a predetermined resistive force in laterally-extending outer portions against sliding of the bags therealong which is greater than the severance strength of the adhesive.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: June 4, 1991
    Assignee: Sonoco Products Company
    Inventors: Carll D. Vrooman, Harry B. Wilfong, Jr.
  • Patent number: 4953664
    Abstract: An ergonomically designed check-out counter system for supermarket and merchandising industries is characterized by provisions for differences in human heights, hand and position of operators and for ease in handling of merchandise to reduce fatigue and injury to the operators while providing maximum productivity under both light and heavy through put requirements.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: September 4, 1990
    Assignee: Sonoco Products Company
    Inventors: Carll D. Vrooman, Dennis R. Taylor