Patents by Inventor James W. Nicholas

James W. Nicholas 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: 5239016
    Abstract: A process for the production of a wall for a package including producing a preform of the wall and stretching the preform of the wall where the preform includes a layer containing a polymer and having oxygen-scavenging properties. The preform and the stretching ratios applied are chosen (i) so that the time (t.sub.I) which the permeance of the wall for oxygen would take to rise to 1/5 of the value it would have in the absence of oxygen scavenging would be at least 10 days and (ii) if the preform were stretched at that time (t.sub.I) after the preform were produced, the time (t.sub.D) which the permeance of the wall for oxygen would take to rise 1/5 of the value it would have in the absence of scavenging would be at least 1/4 of the time (t.sub.I). The time between completion of step (A) and the commencement of step (B) is at least 10 days.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: August 24, 1993
    Assignee: CMB Packaging (UK) Limited
    Inventors: Michael A. Cochran, Rickworth Folland, James W. Nicholas, Melvin E. R. Robinson
  • Patent number: 5049624
    Abstract: The present invention provides a wall for a package comprising: (a) an outer set of one or more layers (1-4) and (b) an inner set of one or more layers (5-6) which layer or the outermost of which layers (5) comprises a composition comprising a polymer and having oxygen-scavenging properties, wherein (i) the outer set of layers would have, if separate from the inner set and in the absence of any oxygen-scavenging properties in any of the layers or the layer constituting the set, a permeance, for oxygen, of not more than 1.5 cm.sup.3 /(m.sup.2 atm day); (ii) the inner set of layers would have, if separate from the outer set and in the absence of oxygen-scavenging properties in any of the layers or the layer constituting the set, a permeance, for oxygen, of at least 2.0 cm.sup.3 /(m.sup.2 atm day); and (iii) the inner set of layers would have, if separate from the outer set, a permeance, for oxygen, less than the permeance specified in (ii) by at least 1.0 cm.sup.3 /(m.sup.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: September 17, 1991
    Assignee: CMB Foodcan plc
    Inventors: John F. Adams, Michael A. Cochran, Rickworth Folland, James W. Nicholas, Melvin E. R. Robinson
  • Patent number: 5021515
    Abstract: The present invention provides a wall for a package, which wall comprises, or includes a layer comprising, a composition comprising a polymer and capable of scavenging oxygen through the metal-catalysed oxidation of an oxidisable organic component thereof. The oxidisable organic component is preferably itself a polymer, and may be the only polymer in the composition. Preferred compositions include a blend of 96% polyethylene terephthalate and 4% poly (m-xylyleneadipamide) containing 200 ppm cobalt as catalyst, with good permeance-versus-time performance (3) when formed into a bottle.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: June 4, 1991
    Assignee: CMB Foodcan plc
    Inventors: Michael A. Cochran, Rickworth Folland, James W. Nicholas, Melvin E. R. Robinson
  • Patent number: 4697718
    Abstract: A food container comprising an open-ended cylindrical body which is made of a crystallizable polyethylene terephthalate material, and end closures at each end of the body forming with the body a closed container, the body material being biaxially oriented and the container body having been head-set, while restrained against radial or axial shrinkage, at a temperature between about 180.degree. C. and about 240.degree. C., whereby the container is able to withstand hot-filling, pasteurization or sterilization temperatures of up to about 120.degree. C. without undergoing shrinkage of its linear dimensions by more than 3%.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: October 6, 1987
    Assignee: Metal Box P.L.C.
    Inventors: Peter E. Butcher, David A. Dick, James W. Nicholas, Melvin E. R. Robinson, Glyn Staines
  • Patent number: 4587075
    Abstract: For heat-setting tubular articles (such as can bodies) of an at least partly biaxially oriented crystallizable polymer, preferably a saturated linear polyester such as polyethylene terephthalate, e.g. for thermally processable food containers, a tube of the polymer is fitted over a mandrel and clamped at its ends to the mandrel at a temperature below the glass transition temperature of the polymer. The tube is then heated, e.g. by inserting a heater 28 into the interior of the mandrel, above the temperature to which it is to be heat-set (at least 60.degree. C. above for PET) whereupon it shrinks into contact with the mandrel but is restrained from axial or further radial shrinkage. The tube and mandrel are cooled to below the heat-set temperature and the tube may then be cut into can body sections by knives engaging in circumferential grooves. Contact between the tube and mandrel is released, e.g.
    Type: Grant
    Filed: April 12, 1984
    Date of Patent: May 6, 1986
    Assignee: Metal Box p.l.c.
    Inventors: Peter E. Butcher, David A. Dick, James W. Nicholas, Melvin E. R. Robinson, Glyn Staines