Patents by Inventor Richard L. Joice

Richard L. Joice 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 individual bag working and stacking
    Patent number: 4275977
    Abstract: The apparatus comprises a vacuum conveyor which periodically receives a polymer film bag from a bag-making machine and intermittently advances the bag to a work station. If work is to be performed at that work station, the vacuum is cut off and the bag is operated upon. At the work station, the bag may be printed, cut, stacked, wicketed, provided with handles, provided with a sealed-in drawstring, or delivered to a second conveyor. The apparatus may include one or more work stations, and the method comprises advancing the bag to the selected work station, turning off the vacuum at that work station to aid in the bag delivery, and working on the bag.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: June 30, 1981
    Inventor: Richard L. Joice
  • Polymer film slitter-sealer apparatus and method
    Patent number: 4259134
    Abstract: Slitter-sealer, for slitting two layers of thermoplastic polymer film and sealing the slit edges of adjacent layers together, has a preheater for preheating the polymer film before slitting to reduce the required temperature at the slitter and improve sealing.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: March 31, 1981
    Inventors: Richard L. Joice, Joseph C. Adamo
  • Plastic bag-wicketing pin adjustment apparatus
    Patent number: 4252233
    Abstract: Wicketing pins on wicketer which receives bags from a plastic bag-making machine are infinitely adjustable so that the tips of the pins can be accurately positioned to properly receive the bags.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: February 24, 1981
    Inventor: Richard L. Joice
  • Universal bag-making machine
    Patent number: 4068566
    Abstract: The web in the bag-making machine is continuously advanced from the web letoff to the takeup. At the operations station of the machine where operations take place on the web, the web is momentarily held stationary for operating thereon. A pair of swinging web control arms take up web at the entrance end of the station and let off web at the exit end during the moment at which the web is stationary. Operations take place when the web is stationary. Adjustments control length of time the web is stationary. Sealing and perforating operations are selectable.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: January 17, 1978
    Inventor: Richard L. Joice
  • Automatic hot needle attachment for bag wicketer
    Patent number: 4021291
    Abstract: Polymer composition bags are located in a stack with the holes in the lips of lip bags engaged on wickets. When a stack of bags is so located, it is supported by an anvil, and a tamper foot comes down adjacent the anvil to clamp the stack of bags. A hot needle penetrates the lips on the stack of bags to tack-weld the bags together so that they may be handled as an integral unit, but bags can be individually removed at the bag-filling station.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: May 3, 1977
    Inventor: Richard L. Joice