Granted Patent B2

US 9,120,610 · App. 13/845,612 · Granted Sep 1, 2015

Abstract

Claims (39)

1. A dispensing device, comprising:

a main body including a wall having a dispensing mouth defined in said wall;

a storage portion retained by said main body;

a conveyance path providing communication between said storage portion and said dispensing mouth;

a conveyor disposed in said conveyance path, wherein said conveyor includes an auger, and wherein said auger includes auger threads made of an elastomer material such that the auger threads are configured to bend;

a feed ramp positioned between said conveyor and said dispensing mouth and defining a portion of said conveyance path, wherein said conveyor is configured to convey food items directly to one end of said feed ramp, and wherein said feed ramp is angled relative to a vertical plane such that the food items slide down said feed ramp from said one end of said feed ramp to said dispensing mouth at another end of said feed ramp;

a drive motor mechanically coupled to said conveyor; and

a sensor directly or indirectly electrically coupled to said drive motor, wherein said sensor is in optical communication with the environment proximate to said dispensing mouth, and wherein said drive motor is configured to drive said conveyor in response to a signal from said sensor.

2. The dispensing device of claim 1 , wherein said sensor is mounted within said main body and optical communication to the environment is provided through a portion of said conveyance path and through said dispensing mouth.

3. The dispensing device of claim 1 , further comprising circuitry electrically coupled to said sensor and to said drive motor, wherein said circuitry is configured to operate said drive motor.

4. The dispensing device of claim 3 , wherein said circuitry is configured to activate said drive motor for a time period upon receiving an output from said sensor indicating the presence of a receptacle proximal to said dispensing mouth.

5. The dispensing device of claim 4 , wherein said circuitry is further configured to ignore said output from said sensor for a wait period after said drive motor has been turned on, such that said drive motor is not turned on during said wait period.

6. The dispensing device of claim 4 , wherein said circuitry is further configured to adjust a speed of said drive motor.

7. The dispensing device of claim 1 , wherein said auger includes threads that taper in height proximal at least one end of said auger.

8. A dispensing device, comprising:

a main body;

a storage portion retained by said main body;

a conveyance path including a conveyance tube positioned within said main body, an auger rotatably disposed in said conveyance tube, and a dispensing mouth defined in a wall of said main body, wherein said auger includes auger threads made of an elastomer material such that the auger threads are configured to bend;

a feed ramp positioned between said auger and said dispensing mouth and defining a portion of said conveyance path, wherein said auger is configured to convey food items directly to one end of said feed ramp, and wherein said feed ramp forms an oblique angle relative to an axis of rotation of the auger such that the food items slide down said feed ramp from said one end of said feed ramp to said dispensing mouth at another end of said feed ramp;

a drive motor mechanically coupled to said auger;

circuitry electrically coupled to said drive motor and configured to operate said drive motor; and

a sensor coupled to said circuitry, wherein said sensor is in optical communication with the environment proximate to said dispensing mouth, and wherein said circuitry is configured to cause said drive motor to drive said auger in response to a signal from said sensor.

9. The dispensing device of claim 8 , wherein said sensor is mounted within said main body and optical communication to the environment is provided through a portion of said conveyance path and through said dispensing mouth.

10. The dispensing device of claim 8 , wherein said circuitry is configured to turn on said drive motor for a time period when said circuitry receives an output from said sensor and after the expiration of said time period turn off said drive motor.

11. The dispensing device of claim 10 , wherein said circuitry is further configured to ignore said output from said sensor for a wait period after said drive motor has been turned on, such that said drive motor is not turned on during said wait period.

12. The dispensing device of claim 8 , wherein said circuitry is configured to adjust the speed said auger rotates.

13. The dispensing device of claim 8 , wherein said auger includes threads that taper in height proximal at least one end of said auger.

14. A dispensing device, comprising:

a tank including a first end and a second end;

a funnel positioned at said second end of said tank, wherein said funnel has a funnel opening defined therein;

a main body defining a dispensing mouth and including at least one lip, wherein said tank and funnel are supported on said main body, wherein said main body includes an inner cover mounted in said main body having a recess defined therein;

a conveyance tube at least partially disposed in said main body defining at least a portion of a conveyance path from said funnel opening to said dispensing mouth, wherein said conveyance tube is supported in said recess;

an auger rotatably positioned in said conveyance tube;

a drive motor mechanically coupled to said auger; and

an optical sensor in optical communication with the environment proximate to said dispensing mouth and directly or indirectly electrically coupled to said drive motor.

15. The dispensing device of claim 14 , wherein said optical sensor is mounted in said main body.

16. The dispensing device of claim 14 , further comprising a feed ramp positioned between said conveyance tube and said dispensing mouth defining a portion of said conveyance path, wherein said feed ramp forms an oblique angle relative to an axis of rotation of the auger such that the food items slide down said feed ramp from said one end of said feed ramp to said dispensing mouth at another end of said feed ramp.

17. The dispensing device of claim 16 , further comprising a feed ramp cover, wherein said optical sensor is mounted on said feed ramp cover.

18. The dispensing device of claim 14 , further comprising a stand including an upright portion and a base, wherein said upright portion is mechanically coupled to said main body.

Assignments (8)