US 11,744,689 B2
Cleaning appliance
Thomas James Dunning Follows, Swindon (GB); William John Bex-Russell, Horsham (GB); Timothy Nicholas Stickney, Gloucester (GB); and Robert Lawrence Tweedie, Swindon (GB)
Assigned to Dyson Technology Limited, Malmesbury (GB)
Filed by Dyson Technology Limited, Wiltshire (GB)
Filed on May 11, 2016, as Appl. No. 15/151,898.
Claims priority of application No. 1508360 (GB), filed on May 15, 2015; and application No. 1508370 (GB), filed on May 15, 2015.
Prior Publication US 2016/0331497 A1, Nov. 17, 2016
Int. Cl. A61C 17/22 (2006.01); A61C 17/40 (2006.01); A46B 11/06 (2006.01); A61C 17/028 (2006.01); A61C 17/02 (2006.01); A61C 17/28 (2006.01); A61C 17/36 (2006.01); A46B 11/00 (2006.01)
CPC A61C 17/227 (2013.01) [A46B 11/0041 (2013.01); A46B 11/063 (2013.01); A61C 17/0202 (2013.01); A61C 17/028 (2013.01); A61C 17/221 (2013.01); A61C 17/28 (2013.01); A61C 17/36 (2013.01); A61C 17/40 (2013.01); A46B 2200/1066 (2013.01)] 54 Claims
OG exemplary drawing
 
1. A dental cleaning appliance comprising:
a head;
a handle;
a stem extending in a longitudinal direction from the handle to the head, the head extending outwardly from the stem; and
a fluid delivery system comprising a nozzle located in the head for delivering a burst of working fluid to the teeth of a user, the nozzle extending along a nozzle axis, and a moveable fluid conduit which is moveable relative to the handle, at least a portion of the moveable fluid conduit that is outside of the head extending in the longitudinal direction of the stem within the stem such that fluid flows through the at least a portion of the moveable conduit toward the head in the longitudinal direction of the stem and the at least a portion of the fluid conduit is moveable within the stem, the nozzle being moveable with the fluid conduit relative to the head, the fluid conduit being biased for movement in a direction which moves the nozzle in a plane in which the nozzle axis and the longitudinal direction lie, and along a curved path lying within the plane, and thereby urges the nozzle against a user's teeth during use of the appliance.