Patents by Inventor Alexander Simon David Rocke

Alexander Simon David Rocke 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: 7437799
    Abstract: The invention provides a cleaner head (50;90;130;180) for a vacuum cleaner comprising a housing (52;92;132;182), a suction opening (60;100;142;184) in a face (58;96;136;186) of the housing which is intended to face a floor surface, a suction passage (110;146) for conducting dirt-laden air from the suction opening (60;100;142;184) through the cleaner head to an outlet thereof, a bleed air inlet (200) arranged in the housing and closed by a bleed valve (76;124;166;198) which is openable to allow air to be bled into the suction passage via the bleed air inlet. The cleaner head further comprises a force-transmitting member (68 122;152;194;232) connected to, or adapted to be connected to, a handle (18;48) by means of which the cleaner head is, in use, maneuvered across the floor surface, and the force-transmitting member (68;122;152;194;232) is connected to the housing by a connection allowing relative movement between the force-transmitting member and the housing.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: October 21, 2008
    Assignee: Dyson Technology Limited
    Inventor: Alexander Simon David Rocke
  • Patent number: 7290309
    Abstract: A cleaning head (30) for a vacuum cleaner comprises a housing (305) which extends transversely to the direction of intended movement (A) of the head. A row of bristles (310) extend outwardly from the sides of the housing (305). The bristles (310) extend transversely outwardly and forwardly from the housing and extend to a level beneath the lowermost surface of the housing. Dirt, dust and other debris which collects at the very edge of a room is either ‘guided’ out of the region next to the wall or is subjected to a vigorous ‘flicking’ action as the head (30) is moved across the floor. A suction channel (330) is located adjacent to the bristles. The bristles (310) are provided as a unit which is removable from the head (30).
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: November 6, 2007
    Assignee: Dyson Limited
    Inventor: Alexander Simon David Rocke
  • Publication number: 20040068829
    Abstract: (57) A cleaning head (30) for a vacuum cleaner comprises a housing (305) which extends transversely to the direction of intended movement (A) of the head. A row of bristles (310) extend outwardly from the sides of the housing (305). The bristles (310) extend transversely outwardly and forwardly from the housing and extend to a level beneath the lowermost surface of the housing. Dirt, dust and other debris which collects at the very edge of a room is either ‘guided’ out of the region next to the wall or is subjected to a vigorous ‘flicking’ action as the head (30) is moved across the floor. A suction channel (330) is located adjacent to the bristles. The bristles (310) are provided as a unit which is removable from the head (30).
    Type: Application
    Filed: August 21, 2003
    Publication date: April 15, 2004
    Inventor: Alexander Simon David Rocke