Apparatus for sequentially dispensing flowable materials
AssigneeCapmatic Ltd.
InventorLavinio Bassani
Life of this patent
Estimating the term…
Abstract
Apparatus for sequentially dispensing flowable materials including a positive displacement metering-pump operated by an actuator capable of reciprocating pivotal movement within a range having an angular extent less than 180.degree.. A link member connects the pivotal actuator to the plunger of the positive displacement pump for causing the pump to dispense liquid when the pump actuator is operated. The pump stroke adjuster can selectively vary the distance between the link member and the pivot axis of the pump actuator for, in turn, controlling the stroke of the pump.
Claims16
A device for sequentially dispensing measured amounts of flowable material, said device comprising:
- a positive displacement pump;
- a pump actuator capable of reciprocating pivotal movement within a range having an angular extent less than 180 degrees;
- a link member mounted to said pump actuator, said link member causing said positive displacement pump to dispense liquid when said pump actuator undergoes said reciprocating pivotal movement;
- a pump stroke adjusting assembly for selectively varying a distance between said link member and a pivot axis of said pump actuator, said pump stroke adjusting assembly including:
- a) a link actuator mounted to said pump actuator, said link member being connected to said link actuator, said link actuator being capable of displacing said link member relative said pivot axis when rotary movement is communicated to said link actuator;
- and
- b) a motor in driving relationship with said link actuator, whereby rotation of said motor causes displacement of said link member relative said pivot axis for, in turn, altering a stroke of said positive displacement pump, said motor being operative to cause displacement of said link member independently of the reciprocating pivotal movement of said pump actuator.
A device for sequentially dispensing measured amounts of flowable material, said device comprising:
- a positive displacement pump, including:
- a) a cylindrical casing;
- b) a plunger mounted in said cylindrical casing for reciprocating sliding movement therein;
- a pump actuator capable of reciprocating pivotal movement within a predetermined angular range;
- a link member mounted to said pump actuator, said link member causing said positive displacement pump to dispense liquid when said pump actuator undergoes said reciprocating pivotal movement;
- a pump stroke adjusting assembly for selectively varying the distance between said link member and a pivot axis of said pump actuator, said pump stroke adjusting assembly including:
- a) a linear actuator mounted to said pump actuator, said link member being mounted to said linear actuator, said linear actuator being capable of displacing said link member relative said pivot axis when rotary movement is communicated to said linear actuator;
- b) an electric motor in driving relationship with said linear actuator, whereby rotation of said motor causes displacement of said link member relative said pivot axis for, in turn, altering a stroke of said positive displacement pump, said motor being operative to cause displacement of said link member independently of the reciprocating pivotal movement of said pump actuator.
Dependencies are inferred from the claim text.