F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/38
F04B 1/00 (2006.01) A61C 1/00 (2006.01)
Patent
CA 1225543
- 1 - Abstract: A piston pump (10) for delivering intermittent liquid jets through a nozzle pumps liquid from a reservoir through an inlet valve (24), pump chamber (27), outlet orifice (21), fluid coupling (18), and outlet conduit to the nozzle of a miniatur- ised appliance having a reduced reservoir height and reduced piston stroke, relative to standard units, tending to jeopard- ise consistent priming of the pump under a pressure head pro- vided by a reduced liquid column in the filled reservoir. The fluid coupling (18) has a first tubular member (46) extend- ing from the outlet orifice (21), a second tubular member (47) extending around and being removable from the first tubular member and having the outlet conduit connected thereto, and consistent priming of the pump at the reduced reservoir height and reduced piston stroke is assured by an outlet check valve (48) located in the first tubular member and biased toward the outlet orifice.
432619
Gowling Lafleur Henderson Llp
Teledyne Industries Inc.
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