Patents Assigned to Clarks Limited
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Patent number: 4547978Abstract: 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: GrantFiled: January 27, 1983Date of Patent: October 22, 1985Assignee: Clarks LimitedInventor: Alfred D. Radford
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Patent number: 4342160Abstract: 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: GrantFiled: May 28, 1981Date of Patent: August 3, 1982Assignee: Clarks LimitedInventor: Lancelot P. Clark
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Patent number: 4295238Abstract: 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: GrantFiled: November 16, 1979Date of Patent: October 20, 1981Assignee: Clarks LimitedInventor: Lancelot P. Clark
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Patent number: 3931680Abstract: 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: GrantFiled: January 23, 1974Date of Patent: January 13, 1976Assignee: Clarks LimitedInventor: Christopher John Greensides
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Patent number: D266314Type: GrantFiled: August 11, 1980Date of Patent: September 28, 1982Assignee: Clarks LimitedInventors: Noel J. Haring, Laurence A. Snook
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Patent number: D270015Type: GrantFiled: April 22, 1981Date of Patent: August 9, 1983Assignee: Clarks LimitedInventor: Alfred D. Radford
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Patent number: D275144Type: GrantFiled: May 3, 1982Date of Patent: August 21, 1984Assignee: Clarks LimitedInventor: Alfred D. Radford
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Patent number: D281829Type: GrantFiled: September 6, 1983Date of Patent: December 24, 1985Assignee: Clarks LimitedInventor: Alfred D. Radford
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Patent number: D293270Type: GrantFiled: July 26, 1985Date of Patent: December 22, 1987Assignee: Clarks LimitedInventor: Alfred D. Radford