Patents Assigned to A.G. (Patents) Limited (British company)
  • Patent number: 5689936
    Abstract: A method and apparatus for manufacturing tagged two-ply infusion packages. The string (14) forming the tags is supplied to a rotating drum (12) which has a plurality of pins (17) protruding from its periphery. The drum (12) is rotatably mounted so as to cooperate with a web (1) used to form at least one layer of the two-ply infusion package. As the drum (12) rotates the string (14) is guided around the pins (17). The web (1) is introduced to the drum (12) by a roller (29) and urged against it by a curved guide (30) to transfer the string from the periphery of the drum to the surface of the web (1). The guide (30) is heated so as to melt the thermoplastics coating on the web (1), whereby the string is attached lightly to the web by the combination of heat and pressure from the guide (30).
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: November 25, 1997
    Assignee: A.G. (Patents) Limited (British company)
    Inventor: Alan George Kenney
  • Patent number: 5466474
    Abstract: A traveling web (11) having adjacent rows of infusion containing pockets (7) has a strip of web material (20) removed from between these rows to produce strips (19) of pockets (7) which are then attached to a cover member. The strip removal is achieved by co-rotating cutting wheels (26, 36) having co-operating shearing edges (32, 33, 34, 37). Removed strips (20) are guided into vacuum ducts (40) by fingers (41).
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: November 14, 1995
    Assignee: A.G. (Patents) Limited (British company)
    Inventor: Ian M. D. Gaylor