Patents by Inventor Keith Grimshaw

Keith Grimshaw 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: 5095585
    Abstract: A method and apparatus for securing card-clothed tops to the flats of revolving flat-type carding machines is disclosed, which obviates the necessity for specialist machines used for securing clipped tops to the flanges of the flats. A special type of top clip is provided which, besides being preformed to engage with the bottom side of the top as is usual, also has an inward hooked formation along its upper longitudinal edge. In addition, various kinds of tensioning elements are provided, each of which is engagable with the hooked formations on the clips, and is resiliently loaded, so that in the assembled condition, it causes the clips to pull the top tightly into engagement with the flanges of the flat.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: March 17, 1992
    Assignee: Carclo Engineering Group plc
    Inventors: Keith Grimshaw, Brian J. Ennis
  • Patent number: 4352224
    Abstract: The invention relates to opening rollers for open-end spinning apparatus, particularly roller which comprise a body on which is wound a helical coil of metallic wire type card-clothing.The roller body comprises two body parts secured together in end-to-end relationship, and the metallic wire type card-clothing is formed into a pre-set helical coil which is located on an external cylindrical surface of the body, the end flanks of the coil engaging respectively with two abutments one on each of the two parts of the roller body, so that the coil is constrained axially between the abutments in a manner such that adjacent convolutions of the coil are held in abutting relationship.It is preferred to use interlocking card-clothing wire. It is also preferred to make the roller body parts in plastics material, and to secure them together by an adhesive, and in this manner a disposable roller is produced.The specification describes methods of refurbishing existing opening rollers, in accordance with the invention.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: October 5, 1982
    Assignee: The English Card Clothing Company Ltd.
    Inventors: Keith Grimshaw, Roger C. Spratt
  • Patent number: 4300266
    Abstract: The invention relates to flats as used in carding machines in which there is a releaseable component at one or each end, this component having a surface for frictional engagement on the carding machine and the component being self-retaining on the flat. Spring clip type components are described and there is also a flat made as an extrusion with end parts machined off to adapt the flat to receive the releaseable components.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: November 17, 1981
    Assignee: The English Card Clothing Company Limited
    Inventors: Keith Grimshaw, Brian J. Ennis
  • Patent number: 4274177
    Abstract: A method and apparatus wherein a machine for carding cotton, man-made fibres and mixtures thereof is provided with a trash removing device usually in the form of a longitudinally fluted roller that cooperates mechanically with a roller clothed with flat-topped card-clothing. The flat-topped clothing roller may be a taker-in roller located in a feed section and the fluted roller is set close to the flat-topped card-clothed roller whereby it is adapted to remove trash projecting above the teeth on the flat-topped card-clothed roller. The trash removing roller is provided with a cowling spaced radially from the periphery of the roller and providing a longitudinally extending gap part way around the roller. A radial lip extends along the one edge of the cowling substantially closing the gap. A deflector lip projects into the gap so as to deflect material travelling in the space between the trash removing roller and the cowling out through the gap.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: June 23, 1981
    Assignee: The English Card Clothing Company Limited
    Inventors: Keith Grimshaw, Roy Taylor
  • Patent number: 4268937
    Abstract: Interlocking metallic wire type card-clothing has a male section protruding from one flank of its rib and a female section formed in the other flank of the rib. The pitch width of the rib is not more than 1.65 millimeters (giving not less than 16 turns per 25 millimeters length of the roller) and the maximum depth of the female section is not substantially greater than half the pitch width of the rib.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: May 26, 1981
    Assignee: The English Card Clothing Company Limited
    Inventor: Keith Grimshaw
  • Patent number: 4017942
    Abstract: A method and apparatus whereby a carded web is removed from a rotating member carrying the web by passing the web through a mouth constituted by a nip between a rotating element such as a stripping roller which may have a non-circular cross-section and a stationary element such as a blade-like member that may be oscillated toward and away from the rotating element, the mouth continuously opening and closing in a plane radial of the rotating element.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: April 19, 1977
    Assignee: The English Card Clothing Company Limited
    Inventors: Malcolm Clayton, Keith Grimshaw
  • Patent number: 4001916
    Abstract: Fiber processing machinery including feed plates, carding plates and web strippers wherein means are provided for carefully adjusting the relative settings of adjacent components of such plates and strippers.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: January 11, 1977
    Assignee: The English Card Clothing Company Limited
    Inventors: Keith Grimshaw, Roy Taylor