Patents by Inventor Christopher John Calvert

Christopher John Calvert 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).

  • Publication number: 20190376626
    Abstract: The present invention provides apparatus for retaining a channel nut (216) member in a desired location in respect to a channel support member (104) such as a channel strut, comprising: a retainer body (106) comprising a base plate portion (202), for supporting a clamp member, comprising at least one rotation drive element located on an upper surface (200) of the base plate portion (202) for driving a rotation of a clamp member into a rotation of the retainer body (106); a retaining portion (218), extending from a lower surface (208) of the base plate portion (202), for retaining a channel nut (216) member in a desired location and rotational orientation with respect to the channel support member (104); and a first through hole (310) for receiving a first securing member (700), wherein the first through hole (310) extends through the base plate portion (202).
    Type: Application
    Filed: November 29, 2017
    Publication date: December 12, 2019
    Inventors: Stephen Andrew Walton, Christopher John Calvert
  • Patent number: 10378679
    Abstract: A method and apparatus are disclosed for retaining at least one elongate object. The apparatus includes a first retaining member (702) comprising at least one female portion (712), a further retaining member (700) comprising at least one male portion (732) receivable in the at least one female portion, wherein the at least one male portion (732) comprises a first connecting region adapted to cooperate with a further connecting region and at least one securing element (785) slidable in a keyway (775) of the first retaining member (702) and engagable with said male portion (732) to securely connect the first and further retaining members and retain an elongate object therebetween.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: August 13, 2019
    Assignee: Ellis Patents Holdings Limited
    Inventors: Andrew Ward Booth, Christopher John Calvert
  • Publication number: 20180266587
    Abstract: A method and apparatus are disclosed for retaining at least one elongate object. The apparatus includes a first retaining member (702) comprising at least one female portion (712), a further retaining member (700) comprising at least one male portion (732) receivable in the at least one female portion, wherein the at least one male portion (732) comprises a first connecting region adapted to cooperate with a further connecting region and at least one securing element (785) slidable in a keyway (775) of the first retaining member (702) and engagable with said male portion (732) to securely connect the first and further retaining members and retain an elongate object therebetween.
    Type: Application
    Filed: September 9, 2016
    Publication date: September 20, 2018
    Inventors: Andrew Ward Booth, Christopher John Calvert
  • Patent number: 9488298
    Abstract: A device for holding together elongate objects such as high-power electrical cables has a frame (30), a strap (12) designed to be fixed at one end to the device and to pass round the cables back to the device with its other end, a spindle (20) rotatably mounted in the frame so as to be generally parallel to the elongate objects in use, the other end of the strap being attachable to the spindle once passed round the cables, and then wound round the spindle by turning the latter in order to tighten the strap round the objects; and a locking mechanism constituted by at least one non-circular section of the spindle (20) and a matching non-circular aperture (33) in the frame, and by the spindle being displaceable along its length with respect to the frame by tightening a locknut (22) so that the non-circular section engages in the corresponding aperture when it is desired to lock it against rotation.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: November 8, 2016
    Assignee: Ellis Patents Holdings Limited
    Inventor: Christopher John Calvert
  • Patent number: D448657
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 2, 2001
    Assignee: Walkern Victoria Industries Limited
    Inventor: Christopher John Calvert
  • Patent number: D831469
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 23, 2018
    Assignee: Ellis Patents Holdings Limited
    Inventors: Stephen Andrew Walton, Christopher John Calvert