Automated fluid dispenser
First Claim
Patent Images
1. A device for dispensing a fluid comprising:
- a housing;
a removable, replaceable unit removably mounted to the housing;
the unit including;
a container for fluid to be dispensed; and
a pump activable to dispense fluid from the container;
the pump having a rotatable input member extending therefrom;
the pump operative to dispense fluid from the container by rotation of the input member,the housing comprising;
a motor with a rotatable output member; and
a motor control mechanism for controlling operation of the motor;
the motor output member removably coupled to the input member of the pump for rotation of the pump on operation of the motor,the motor comprising an electric direct current motor with a rotor journalled for rotation about an axle relative a stator fixed to the housing,a coaxial extension of the axle comprising the motor output member;
the pump removably coupling with the motor by sliding of the pump relative the housing parallel the axle of the motor,the container removably coupling with the housing for support of the container by the housing by sliding of the container relative the housing parallel the axle of the motor such that by sliding of the unit relative the housing the container is coupled to the housing and simultaneously the pump is coupled to the motor.
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Abstract
A device for controlled automatic dispensing of fluids comprising a housing carrying an electric motor and a disposable, removable unit incorporating a container carrying fluid to be dispensed and a pump. The removable unit is adapted to be removably coupled to the motor to drive the pump simultaneously with the container being removably coupled to the housing. The unit preferably also carries a battery with an electric capacity sufficient to drive the motor to dispense all the fluid in the container. The unit other than the removable battery is made of recyclable plastic.
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Citations
20 Claims
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1. A device for dispensing a fluid comprising:
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a housing; a removable, replaceable unit removably mounted to the housing; the unit including;
a container for fluid to be dispensed; and
a pump activable to dispense fluid from the container;the pump having a rotatable input member extending therefrom;
the pump operative to dispense fluid from the container by rotation of the input member,the housing comprising; a motor with a rotatable output member; and a motor control mechanism for controlling operation of the motor; the motor output member removably coupled to the input member of the pump for rotation of the pump on operation of the motor, the motor comprising an electric direct current motor with a rotor journalled for rotation about an axle relative a stator fixed to the housing, a coaxial extension of the axle comprising the motor output member; the pump removably coupling with the motor by sliding of the pump relative the housing parallel the axle of the motor, the container removably coupling with the housing for support of the container by the housing by sliding of the container relative the housing parallel the axle of the motor such that by sliding of the unit relative the housing the container is coupled to the housing and simultaneously the pump is coupled to the motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for dispensing a fluid comprising:
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a housing; a removable, replaceable unit removably mounted to the housing; the unit including;
a container for fluid to be dispensed; and
a pump activable to dispense fluid from the container;the pump comprises;
a casing, an enclosed cavity defined within the casing, and two gear-like impellers each having an axis and radially extending teeth;the impellers journalled for rotation within the cavity adjacent each other with their axes parallel and with teeth of one impeller intermeshing with the teeth of the other impeller in a nip between the impellers, an inlet port through the casing open to the cavity on a first side of the nip, an outlet port through the casing open to the cavity on a second side of the nip opposite the first side, interior surfaces of the cavity closely enclosing the impellers such that on rotation of the impellers, fluid is impounded in spaces between adjacent teeth of each impeller and interior surfaces of the casing and moved with rotation of each impeller circumferentially from one side of the nip where the teeth disengage from intermeshing to the other side of the nip where the teeth engage into intermeshing, the inlet port communicating with the container; the outlet port communicating with an outlet, wherein on rotation of one of the impellers in a pumping direction, the pump pumps fluid from the container via the inlet port to the cavity through the cavity and via the outlet port out of the cavity to the outlet; wherein on rotation of one of the impellers in a pumping direction, the pump pumps fluid from the container via the inlet port to the cavity through the cavity and via the outlet port out of the cavity to the outlet; the pump having a rotatable input member coupled to one of the impellers for rotation together and extending out of the casing; the housing comprising; a motor with a rotatable output member; and a motor control mechanism for controlling operation of the motor; the motor output member removably coupled to the input member of the pump for rotation of the impellers of the pump on operation of the motor. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A device for dispensing a fluid comprising:
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a housing; a removable, replaceable unit removably mounted to the housing; the unit including;
a container containing a predetermined quantity of fluid to be dispensed; and
a pump activable to dispense fluid from the container;the pump having a rotatable input member;
the pump operative to dispense fluid from the container by rotation of the input member,the housing comprising; a motor with a rotatable output member; and a motor control mechanism for controlling operation of the motor; the motor output member removably coupled to the input member of the pump for rotation of the pump on operation of the motor, the unit including a battery of an electrical capacity at least sufficient to power the motor and motor control mechanism to dispense with the pump the predetermined quantity of the fluid in the container. - View Dependent Claims (18, 19, 20)
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Specification