Metering dispenser for powder and granules
AssigneeNCH Corporation
InventorDale Vilmer Kiplinger
Life of this patent
Estimating the term…
Abstract
A hand-held, pneumatically propelled, metering dispenser for powdered or granular products such as pesticides, the dispenser having a manually operated pneumatic pump, a product canister, a metering scoop insertable into the product canister in operative alignment with the pneumatic pump, and a discharge line into and through which powder or granules supported in the scoop are blown by operation of the pneumatic pump.
Claims36
A hand-held dispenser for powdered or granular particulate material, the dispenser comprising:
- a pneumatic pump assembly having a cylinder, a reciprocating plunger for selectively pressurizing air inside the cylinder, and a discharge port through which pressurized air is discharged from the cylinder;
- a canister assembly having a substantially cylindrical canister with an interior, a first port through which particulate material is introducible into the interior, a second port through which pressurized air is introducible into the interior from the pneumatic pump assembly, and a valve disposed adjacent to the second port;
- and
- a discharge assembly having a discharge tube attachable to the canister and a metering scoop insertable into the canister interior in fixed relation to the canister, the metering scoop having a known volume and further comprising an outlet orifice communicating with the discharge tube.
A hand-held dispenser for powdered or granular particulate material, the dispenser comprising:
- a pneumatic pump assembly having a cylinder, a reciprocating plunger for selectively pressurizing air inside the cylinder, and a discharge port through which pressurized air is discharged from the cylinder;
- a canister assembly having a substantially cylindrical canister with an interior, a first port through which particulate material is introducible into the interior, a second port through which pressurized air is introducible into the interior from the pneumatic pump assembly, and a valve disposed adjacent to the second port;
- and
- a discharge assembly having a discharge tube attachable to the canister and a metering scoop insertable into the canister interior in fixed relation to the canister, the metering scoop having a known volume and further comprising an outlet orifice communicating with the discharge tube;
- the metering scoop also having proximal and distal ends, and an upwardly tapered bottom wall extending between the proximal and distal ends, and the outlet orifice being disposed in the bottom wall adjacent the proximal end.
A hand-held dispenser for powdered or granular particulate material, the dispenser comprising:
- a pneumatic pump assembly having a cylinder, a reciprocating plunger for selectively pressurizing air inside the cylinder, and a discharge port through which pressurized air is discharged from the cylinder;
- a canister assembly having a substantially cylindrical canister with an interior, a first port through which particulate material is introducible into the interior, a second port through which pressurized air is introducible into the interior from the pneumatic pump assembly, and a valve disposed adjacent to the second port;
- and
- a discharge assembly having a discharge tube attachable to the canister and a metering scoop insertable into the canister interior in fixed relation to the canister, the metering scoop having a known volume and further comprising an outlet orifice communicating with the discharge tube;
- the metering scoop further comprising first and second longitudinally extending side wall sections, the first side wall section terminating in a leading edge and the second side wall section terminating in a trailing edge, the leading edge being lower than the trailing edge when the metering scoop is upwardly directed.
Dependencies are inferred from the claim text.