Patent ID: 9381527
Filing Date: 2016-07-05
CPC Classification: A01C,B05B,Y10T

Claim Text:
1. A liquid delivery apparatus comprising: a base assembly; a vessel into which liquid may be introduced via an inlet to at least partially fill the vessel and to pressurize the liquid in the vessel; a nozzle comprising a discharge tube and a nozzle outlet, wherein the nozzle is rotatable with respect to the base assembly, and the nozzle outlet is provided at a distal end of the nozzle via which said liquid may be discharged from the vessel under the pressure of the liquid in the vessel; a valve between the vessel and the nozzle to control passage of liquid from the vessel to the nozzle outlet, the valve being configured to open in response to the pressure in the vessel; and a drive system configured to drive rotation of the nozzle with respect to the base assembly, the drive system including a ratchet assembly having a ratchet gear coupled to the rotatable nozzle and a ratchet linkage, the ratchet linkage being arranged to drive rotation of the ratchet gear, wherein the ratchet linkage is driven by virtue of a pressure change in the liquid at the inlet to the liquid delivery apparatus.