Pneumatic Pump
AssigneeBullseye Pumps Pty Ltd
InventorMark Damien Krohn
Life of this patent
Estimating the term…
Abstract
There is provided a pneumatic pump (10) comprising a tubular steel frame (11) and a disc-shaped pressure vessel (12) including a lower, tangential transfer port (14) and an upper, radial ventilation port (15). A transfer assembly (16) on the port (14) includes an inlet assembly (17) having a positive-close non-return valve (21) and a delivery outlet assembly (20). A venturi assembly (22) applies suction to the ventilation port (15) and has an exhaust vent (24) including a closure assembly (25) selectively operable to cycle between a suction phase and a pressurized phase. A two way T-valve (40) selectively allows venturi exhaust air to pass selectively into either a diffuser/muffler (35) or a delivery line (42) downstream of an outlet non-return valve.
Claims15
1-29. (canceled)
A pneumatic pump including:
- a supporting frame;
- a pressure vessel in the form of a spherically-derived shape flattened in the vertical plane and supported by said frame, and having a lower transfer port and an upper ventilation port;
- a transfer assembly communicating with said transfer port and including an inlet for pumpable material, and a delivery outlet, one or both of said inlet and said outlet having a non-return valve;
- a constant-flow, compressed air-operated venturi assembly having a suction side communicating with said ventilation port and an exhaust vent including closure means selectively operable to cycle said ventilation port between a suction phase and a pressurized phase, venturi exhaust air during said suction phase being selectively vented to atmosphere or injected into a delivery line portion downstream of said outlet;
- and
- control means being adapted to selectively operate said closure means.
Dependencies are inferred from the claim text.