Patents Assigned to McKechnie Plastics Limited
  • Method for shaping thermoplastic tubes
    Patent number: 5985203
    Abstract: A method for forming a bend in a tube of thermoplastic material by heating a pre-formed bend to a pre-determined temperature and maintaining the temperature substantially constant by the pulsed emission of infra-red radiation from one or more infra-red sources in response to the surface temperature of the tube detected by a remote temperature sensor.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: November 16, 1999
    Assignee: McKechnie Plastics Limited
    Inventor: Trevor George Bowkett
  • Method and apparatus for shaping thermoplastic tubes
    Patent number: 5200124
    Abstract: A method of and apparatus for shaping thermoplastic tube by external formers using pulsed emission of short wave infra-red radiation to soften the thermoplastic material with the tube held in the required configuration on the formers followed by air cooling to harden the thermoplastic material and retain the required configuration.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: April 6, 1993
    Assignee: McKechnie Plastics Limited
    Inventor: Trevor G. Bowkett