Patents Assigned to Barker, Brettell & Duncan
  • Patent number: 4819824
    Abstract: A lidded container is provided which is intended to deter unauthorized removal of the lid. The container has an out-turned lip of inverted U-section having a circumferential horizontal flange supporting an upright retention portion with a retaining bead. The lid has a rim portion which is also of inverted U-section, the web of the U having a formation engaging a complementary formation on the lip of the container to provide location and sealing connection between the lid and container, and the outer limb being outwardly cranked and forming a depending skirt having a retaining formation which interlocks with the retaining formation.Part of the flange is extended to form a tab which is removable at a line of weakening to facilitate separation of the lid and container. Removal of the tab indicates that the container has been opened or at least that it has been tampered with.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: April 11, 1989
    Assignee: Barker, Brettell & Duncan
    Inventors: Karl Longbottom, Norman Whiteley, Paul J. H. Bagnall
  • Patent number: 4815194
    Abstract: A method of manufacturing a rectangular frame for a vehicle sunroof in which first and second straight metal profiles (38, 40) are assembled to form a frame stock assembly which is bent at intervals along its length to form the frame. The profiles are arranged as radially outer and inner components, respectively, in the plane of the bend and are coupled by means of a web (42) of the inner component (40) engaging in a slot (44) in the outer component (38). The profiles are assembled together by sliding the web longitudinally along the slot, and interengaging surfaces (43, 45) remain free to slide against one another during bending of the assembly. The profiles are assembled prior to shaping the frame. During bending the profiles can slide relative to one another reducing deformation occurring at the bend and allowing the frames to be formed with tighter bends at the corners than has previously been possible.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: March 28, 1989
    Assignee: Barker, Brettell & Duncan
    Inventor: John B. Lievesley