Patents by Inventor Derek Henry Dyett

Derek Henry Dyett 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: 5816261
    Abstract: A ledger device suitable for use in a cigarette making machine, for supporting one or more cigarette rods while being cut into predetermined lengths, comprises two similar ledger support members (10; 12) mounted respectively on two pairs of cranks (30,32; 42,44) and arranged to orbit two ledger parts (22; 28) in the same plane along the same circular path, 180.degree. out of phase with one another, each ledger part being arranged to support the rod or rods during alternate cuts.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: October 6, 1998
    Assignee: Molins PLC
    Inventor: Derek Henry Dyett
  • Patent number: 5743275
    Abstract: A cigarette making machine comprises a channel (104; 106/228; 230/319; 320) through which tobacco is showered onto the inside surface of a suction band (100; 102/232; 234/309; 310) passing around a number of pulleys having approximately vertical axes of rotation, so as to form on the band a cigarette filler stream (114 etc.) which passes around one of the pulleys (100A; 102A/236; 238/314; 318), while lying between the pulley and the band, and is then arranged to transfer to a second band (122; 124/204; 206/321; 322) which transports the filler stream towards a rod-forming device by which the filler stream is enclosed in a wrapper web to form a continuous cigarette rod. A twin-track cigarette making machine may comprise two such arrangements side-by-side and forming mirror-images of one another.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: April 28, 1998
    Assignee: Molins PLC
    Inventors: John Dawson, Derek Henry Dyett
  • Patent number: 5715838
    Abstract: A filter attachment machine for use with a twin-track cigarette making machine is arranged to receive, in alternate flutes of a fluted drum (10), the cigarette rods from the respective tracks of the cigarette making machine, and to convey the cigarette rods from alternate flutes to separate filter assembly devices (38;40) by which filters are attached to the cigarette rods. The machine preferably receives the cigarette rods in one row on the fluted drum (10), and includes separation drums (28;36) arranged to feed the cigarette rods from alternate flutes to upper and lower filter attachment devices (38;40) lying in substantially the same vertical plane.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: February 10, 1998
    Assignee: Molins PLC
    Inventor: Derek Henry Dyett