Patents Assigned to Clarks Limited
  • Patent number: 4547978
    Abstract: A boot or shoe 10 has its upper lasted to an insole 12 made from leather or a permeable plastics material, and a sole unit 13 is bonded to the lasted upper and the insole. The sole unit is moulded from a resilient plastics material and is formed with a multiplicity of cavities 15 opening to its top surface underlying the insole and open topped channels extending between the cavities. Bulges 17 are formed on the bottom surface of the sole unit at the locations of the cavities. The act of walking causes the bulges to be compressed and to pump air along the channels to others of the cavities so as to disperse perspiration from the insole. The cavities preferably have a restricted cross-sectional area 18 where they communicate with the channels.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: October 22, 1985
    Assignee: Clarks Limited
    Inventor: Alfred D. Radford
  • Patent number: 4342160
    Abstract: A boot or shoe comprises a preformed portion and a portion which is molded in one piece on to the pre-formed portion and which includes the sole unit and those parts of the upper not constituted by the pre-formed portion. The pre-formed portion comprises side panels extending along each side of the shoe and a sock for underlying the foot, which sock interconnects the side panels and the side panels and sock may be made in one piece or in separate pieces which are fastened together, as by sewing, before the molded portion is molded on to the pre-formed portion. The molded portion is made from a plastics material, e.g. polyurethane, and the material does not overlap the inner face of the pre-formed portion but overlaps at least some of the marginal regions of the two side panels. The sock lies in the top surface of the sole unit. The two side panels may together extend also round the heel region of the upper and the plastics material may cover the outer face of the panels in the heel region.
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: August 3, 1982
    Assignee: Clarks Limited
    Inventor: Lancelot P. Clark
  • Patent number: 4295238
    Abstract: A boot or shoe comprises a pre-formed portion and a portion which is moulded in one piece on to the pre-formed portion and which includes the sole unit and those parts of the upper not constituted by the pre-formed portion. The pre-formed portion comprises side panels extending along each side of the shoe and a sock for underlying the foot, which sock interconnects the side panels and the side panels and sock may be made in one piece or in separate pieces which are fastened together, as by sewing, before the moulded portion is moulded on to the pre-formed portion. The moulded portion is made from a plastics material, e.g. polyurethane, and the material does not overlap the inner face of the pre-formed portion but overlaps at least some of the marginal regions of the two side panels. The sock lies in the top surface of the sole unit. The two side panels may together extend also round the heel region of the upper and the plastics material may cover the outer face of the panels in the heel region.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: October 20, 1981
    Assignee: Clarks Limited
    Inventor: Lancelot P. Clark
  • Patent number: 3931680
    Abstract: The specification describes an automatic machine for measuring the length, width and girth of a foot for the purpose of determining the most appropriate shoe size. The machine measures the width of the foot at a distance approximately three quarters of the length of the foot from the heel end and measures the girth of the foot at the same position. Placing the heel against a heel stop on a platform initiates motor driven movement of a toe stop towards the toes. When the toe stop comes into abutment with the toes, a microswitch is actuated which starts a motor driving one of two width probes for bringing the two width probes into engagement with opposite sides of the foot, the width probes being coupled together for lateral floating movement. The width probes are mounted on a carriage which is driven lengthwise of the foot in conjunction with the toe stop end at three-quarters of the speed of the toe stop.
    Type: Grant
    Filed: January 23, 1974
    Date of Patent: January 13, 1976
    Assignee: Clarks Limited
    Inventor: Christopher John Greensides
  • Patent number: D266314
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: September 28, 1982
    Assignee: Clarks Limited
    Inventors: Noel J. Haring, Laurence A. Snook
  • Patent number: D270015
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: August 9, 1983
    Assignee: Clarks Limited
    Inventor: Alfred D. Radford
  • Patent number: D275144
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: August 21, 1984
    Assignee: Clarks Limited
    Inventor: Alfred D. Radford
  • Patent number: D281829
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: December 24, 1985
    Assignee: Clarks Limited
    Inventor: Alfred D. Radford
  • Patent number: D293270
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: December 22, 1987
    Assignee: Clarks Limited
    Inventor: Alfred D. Radford