WO2016033462A1 - Distributeur tronconique en spirale - Google Patents

Distributeur tronconique en spirale Download PDF

Info

Publication number
WO2016033462A1
WO2016033462A1 PCT/US2015/047431 US2015047431W WO2016033462A1 WO 2016033462 A1 WO2016033462 A1 WO 2016033462A1 US 2015047431 W US2015047431 W US 2015047431W WO 2016033462 A1 WO2016033462 A1 WO 2016033462A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
housing portion
objects
race
spiral
Prior art date
Application number
PCT/US2015/047431
Other languages
English (en)
Inventor
Leo TROTTIER
Daniel Knudsen
Jarrod Barker
Rodney Brown
Aaron Nott
Original Assignee
Cleverpet Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cleverpet Llc filed Critical Cleverpet Llc
Priority to US15/507,720 priority Critical patent/US20170295750A1/en
Priority to CN201580057677.1A priority patent/CN107072170B/zh
Publication of WO2016033462A1 publication Critical patent/WO2016033462A1/fr
Priority to US16/896,042 priority patent/US11234413B2/en
Priority to US17/589,721 priority patent/US20220151200A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00—Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • A01K5/01—Feed troughs; Feed pails
    • A01K5/0114—Pet food dispensers; Pet food trays
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K15/00—Devices for taming animals, e.g. nose-rings or hobbles; Devices for overturning animals in general; Training or exercising equipment; Covering boxes
    • A01K15/02—Training or exercising equipment, e.g. mazes or labyrinths for animals ; Electric shock devices ; Toys specially adapted for animals

Definitions

  • the present device relates to the dispensing of items from an available plurality of items and more particularly to a device for dispensing individual pieces of food in an interactive animal training system.
  • Dispensing apparatus for objects have been developed over the years in many configurations.
  • the majority of such dispensing devices are not well adapted to dispense a single item, when the supply of such items, for instance as noted dry kibble for dogs and cats, comes in a large stacked or reservoir-held supply.
  • dispensers such as shoveling devices, or drop-filling devices, are generally unable to dispense a single kibble, repeatedly.
  • the process of sequentially dispensing a single item from a larger supply of such items is known as "singulation" and systems that do this are said to "singulate”.
  • a dispensing device which is employable to dispense individual units, from communicable supplies of a product or material, stored for such dispensing.
  • Such a device should be employable to repeatedly, and reliably dispense, a single unit from the supply of food, or other material being dispensed whether the supply thereof is heterogeneous or homogeneous in nature.
  • a device ideally also should be mechanically and operably configurable, to sort the available supply of such material by size, and to then dispense individual units of substantially the same size from the available supply, while rejecting the units of material which are either larger or smaller than is wanted for dispensing.
  • such a device should be able to concurrently sort the dispensed material to size and concurrently deliver individual units thereof, singularly and sequentially, as needed, and do so reliably.
  • a device employing a spiraling frustoconical race to communicate individual items to a dispensing end, from a reservoir of such items located at a lower end of the device.
  • the dispensing apparatus is configurable to provide a sorting of the available supply of items fed to the race by size, depending on the actual configuration and rotational speed of the device in operation. While employable to sort or dispense individual items from a supply thereof for a multitude of purposes, the device herein is currently adapted for the dispensing of kibble or dry pet or dog treats although those skilled in the art will recognize numerous other applications which are considered within the scope of this application.
  • the present invention provides a device and method for the reliable sequential dispensing of respective individual objects or items, from a communicable supply of such items or objects.
  • the device can be employed by itself, once placed in communication with a supply of objects to be dispensed, or, it may be employed in operational engagement with any component or machinery required to singulate, or sequentially dispense individual items or objects, from the available communicated supply thereof to be dispensed.
  • the device is employable to dispense individual dry pet treats or kibble, from a supply thereof available.
  • individual objects from the supply available are repeatedly dispensed and as shown herein used for dispensing individual dog treats or kibble, individual pieces of the dry kibble or treats, can be operatively dispensed by the device upon initiation of operation by communicating power to a motor which will operate the device to dispense.
  • the device whether employed as a unitary dispensing component or in combination with machinery adapted to dispense, is formed as a frustoconical housing which is adapted for rotation when operatively engaged to a dispensing apparatus.
  • the housing features a novel spiral race extending from a first side edge engaged with the interior surface of the sidewall of an interior cavity of the housing, defined by the sidewall.
  • the race extends to a distal edge a distance away from the engagement with the sidewall of the housing. So engaged, the race follows a spiral pathway within the interior cavity from the widest portion of the frustoconical housing, to an aperture located at the opposite and narrower end of the housing.
  • the housing is engaged to rotate along a central axis which is positioned at an inclining angle placing the narrower end of the housing elevated above the wider end of the housing.
  • the race on the interior cavity which is in communication with the supply of individual objects to be dispensed within the wider end of the interior cavity, through a frictional engagement with individual pieces or objects, will transport respective individual objects or pieces upward within the interior cavity along the spiral race.
  • the individual objects Upon reaching the aperture located at the elevated narrow end of the housing, the individual objects, or in this case, pieces of kibble, are ejected from the housing through the aperture. Once ejected from the interior cavity by the motion of the race, the objects may be dispensed using the force of the falling object to operatively dispense it.
  • a chute is positioned in operative engagement with the aperture of the device whereby ejected objects such as kibble from the supply within the housing, are directed during falling to a bowl.
  • the bowl receiving the falling kibble may be initially positioned out of reach of the animal and thereafter positioned for consumption of the kibble in the bowl, by translation of the bowl from a covered position to an uncovered position wherein the animal, such as a dog, may eat and enjoy the dispensed food or treat.
  • the device may also be employed to sort and dispense one size range of objects from a supply having varying sizes of such which is housed within the wider end of the interior cavity.
  • the size elevated and ejected by the spiral race can be limited by the distance of extension of the race from the interior sidewall of the housing. Such may be adjusted to cause differing sizes to be transported up the race while others are rejected due to falling from an elevated position on the race which is sized to cause such a tumble.
  • the rotational speed of the housing, and thus the speed of the race can be adjusted to enhance such a sorting due to gravitational pull and sliding of individual objects on the race which are too large to be supported during the rotation of the housing.
  • the invention features a device for sequentially dispensing individual objects including a housing having a first housing portion which is conically- shaped.
  • the first housing portion having a first end proximate a supply of objects and a second end proximate a location where the objects are to be dispensed.
  • the housing may comprise a second housing portion with a first end and a second end, wherein the first end of the first housing portion is interconnected with the first end of the second housing portion.
  • the second housing portion may be frusto- conical in shape.
  • the first housing portion and the second housing portion may be mechanically detachable.
  • the second housing portion may have a hopper in its interior for holding a supply of objects and wherein a surface of the hopper may be angled to urge the objects toward the first housing portion.
  • the second housing portion may include an opening with a mechanically detachable lid through which the supply of objects can be introduced to the hopper.
  • the second housing portion may include a spiral race disposed on its interior surface which aligns with the spiral race disposed on the interior surface of the first housing portion; the second housing portion holding a supply of objects.
  • the housing may have a longitudinal axis and the spiral race on the interior surface of the first housing portion is disposed about the longitudinal axis.
  • the second housing portion may include a plurality of aggregating ribs on the interior surface of the second housing portion, the aggregating ribs having lengths substantially in a direction parallel to the longitudinal axis and widths substantially in a direction perpendicular to the longitudinal axis.
  • the housing may have a longitudinal axis and the spiral races on the interior surfaces of the first and second housing portions are disposed about the longitudinal axis.
  • the first and second housing portions may be frustoconical in shape.
  • the first end of the first housing portion may be wider than the second end of first housing portion.
  • the housing may be disposed on a mount to enable rotation of the housing about the longitudinal axis; wherein when the housing is rotated the objects to be dispensed travel from the hopper along the spiral race due to frictional engagement between the spiral race and the objects.
  • the housing may be angled upwards, relative to a surface on which the device is disposed, from the second end of the second housing portion to the second end of the first housing portion.
  • the second end of the first housing portion may comprise an opening for the exit of the objects.
  • the objects to be dispensed may be particles of food and the particles may range from 0.4 cm to 4.0 cm.
  • the spiral race may include a spiral wall extending from the interior surface of the first housing portion.
  • the spiral wall may extend from the interior surface of the first housing portion is formed by indenting an exterior surface of the first housing portion.
  • a system for training animals comprising a food container and an interactive device for providing stimulation to the animal in order to elicit a response from the animal.
  • a dispensing device for sequentially dispensing individual particles of food to the food container in response to input from the interactive device.
  • the dispensing device includes a housing having a first housing portion interconnected to a second housing portion.
  • the first housing portion is conically-shaped and has a first end interconnected to the second housing portion and a second end proximate the food container.
  • the first housing portion has a spiral race disposed on its interior surface extending from the first end to the second end of the first housing portion, and the second housing portion has a hopper in its interior for holding a supply of food particles.
  • the housing is rotatably mounted to enable rotation of the housing about a longitudinal axis of the housing.
  • the housing is rotated the food particles travel from the hopper along the spiral race due to frictional engagement between the spiral race and the food particles, until the particles are individually dispensed through an opening in the second housing portion to the food container.
  • the housing of the dispensing device may be detachable from the mount.
  • the housing may be inclined at an upward angle from the second housing portion to the first housing portion.
  • One or more of the following parameters may be adjusted to control the travel of food particles along the spiral race: the angle of incline of the housing, the rotational speed of the housing, and the height, pitch and frictional properties of the spiral race.
  • the frustoconical housing with spiral narrowing race may be adapted for use in various other modes and combinations and is also capable of other embodiments and of being practiced and carried out in various ways which will be obvious to those skilled in the art. Any such alternative configuration as would occur to those skilled in the art is considered within the scope of this patent. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting. [022]
  • FIG.l depicts an isometric view of a dispensing device for pet food, having the frustoconical dispensing device herein in operative engagement therewith.
  • FIG. 2 shows a sectional view of figure 1, along line 2-2.
  • FIG. 3 depicts a view of the frustoconical housing device herein showing the sidewall forming the exterior surface and an inclined operational axis.
  • FIG. 4 shows a sectional view of figure 3, along line 4-4.
  • FIG. 5 depicts a sectional view of figure 3, along line 5-5.
  • FIG. 6 depicts one mode of the device herein engaged with the component of figure 1 which is shown with the outer housing removed.
  • FIG. 7 shows another view of the device as engaged in figure 6, showing the gravitational delivery of ejected material or objects from the interior cavity of the housing, through a chute to a dispensing bowl.
  • FIG. 8 depicts an alternate embodiment of the frustoconical housing device
  • FIG. 9 shows a sectional view of figure 8 along line 40-40.
  • FIG. 10 shows an isometric view of the frustoconical first housing portion.
  • FIG. 11 shows a sectional view of figure 10 along line 44-44.
  • FIG. 12 is an isometric view of the wider, second housing portion.
  • FIG. 13 is a different isometric view of the second housing portion shown in figure 12.
  • FIGS. 14a-c show another embodiment of a frustoconical first housing portion, which is made by two injection molded halves which are combined to form the final assembly.
  • FIG. 1 an exemplar dispensing device 10 which could be utilized in, for example, interactive animal training system 1 , figure 1.
  • device 10 is operationally engageable for dispensing, using an inclined orientation of the first, narrower section 12 of the frustoconical housing 14, elevated above the wider, second section 15.
  • powered means for rotation such as the gears 16 operatively connected to a motor (not visible in figure 2) are employed to rotate device 10 to dispense and/or sort individual items, such as pieces of animal food.
  • the items exit the first portion 12 proximate the narrow end and travel down a chute 17 and into dispensing bowl 18.
  • the food in dispensing bowl 18 can be made accessible to an animal according to a desired feeding and/or training algorithm implemented by training system 1.
  • a desired feeding and/or training algorithm implemented by training system 1.
  • Such a training system and algorithm is described in U.S. Provisional Application titled No. 62/045,262, filed on September 3, 2014, and in PCT Application Serial No. , filed on , 2015.
  • frustoconical housing 14 of device 10 is defined by an exterior sidewall 19 forming the exterior surface of housing 14 and, as noted, may be employed for singular dispensing sequentially of individual units from any heterogeneous or homogeneous mix of material or objects, by itself, or in combination with other mechanical dispensing components as shown herein.
  • the incline shown in figure 2 is again depicted in figure 3 which shows the axis 20 running through the center of the housing 14, at an incline thereby elevating the first, narrower section 12 of the housing 14, above the wider, section 15.
  • figure 4 is depicted, a sectional view of figure 3, along line 4-4 thereof, showing the interior cavity 22 of the housing 14.
  • the first section 12 removably engages with second section 15 and each section 12 and 15 may be frusto-conical in shape.
  • Second frustoconical section 15 has a hopper portion 21 which is configured to hold the or supply of material to be dispensed from the elevated aperture 24 after travel up the spiraling race 26.
  • the lower section 15 is depicted with a mechanically removable door 23 through which new objects may be introduced into hopper portion 21 of the housing 14.
  • the spiraling race 26 as shown in more detail the sectional view of figure 5 taken along line 5-5 of figure 3, extends from a first side edge of race 26 engaged with the interior sidewall 19' of interior cavity 22 of the housing 14.
  • the race 26 extends to a distal edge a distance "L" away from the engagement with the sidewall 19'. So engaged, the race 26 follows a spiral pathway within the interior cavity 22 from the second frustoconical section 15 of the housing to the first frustoconical section 12 and out aperture 24 located at the elevated end housing 14.
  • the race 26 When operatively engaged to rotate along a central axis 20 positioned at the noted inclined angle, ⁇ , the race 26 in communication with the supply of individual objects to be dispensed from hopper 21 within the second frustoconical section 15, through frictional engagement with individual pieces or objects, transports respective individual objects or pieces upward within the interior cavity 22 along the spiral race 26 wherein the pieces are ejected individually from the aperture 24 for dispensing.
  • the frictional properties of the sidewall 19' and or the spiral race 26 may be modified to provide different levels of singulation for objects of different textures to be dispensed. For example, a textured surface, or dimples, or a pattern of raised dots may be added to the surface if the supply of objects to be singulated has a smoother texture. Singulation of differently sized objects may be achieved by changing the height L of the race, the cross-sectional aspect, or the pitch (number of spirals) of the race along the housing wall. In combination with the frictional properties of the sidewall and race, these parameters may be altered to service different collections of objects for singulation. Larger objects, for example, will be less likely to climb to the top of the spiral before falling back down due to their mass.
  • the race height "L” can be made higher or lower depending on the objects to be dispensed, or it may have a different value along the extent of the race. If the race height "L” is small enough, a certain percentage of objects will tumble backward down the housing as their centers of gravity reside above “L” and they are no longer supported by the race. This is a key feature of a mechanism that supports singulation; as objects progress along the race in the direction of the longitudinal axis, they lift up the sidewall and end up perched atop the particle that had just been below them along the race. Since they are now perched atop a second object, they are more likely to be above the race height "L” and often fall backward, leading to only the piece that had been below continuing up along the race. In this way, groups of objects that might otherwise have been dispensed together are separated and singulated.
  • the parameters of device angle, device speed, race height and pitch, and frintional properties of the race and side walls can be made to lead to not only singulation of objects, but a sorting of objects based on their parameters, e.g. a smaller value of "L" will lead to, on average, smaller pieces being dispensed sooner than larger pieces.
  • the device 10 is shown in one mode of use in figures 6 and 7, where it is incorporated in the animal interactive training system 1 , figure 1.
  • housing 14 is affixed to a mount (not shown) and at the end of first section 12 housing 14 is affixed to mount 30 which together support housing 14 and allow it to rotate about axis 20.
  • This is accomplished by motor 31 driving gear 32 and gear 16 affixed to housing 14.
  • the rotation of gear 16 causes housing 14 to rotate about axis 20.
  • housing 14 rotates, objects in hopper 21 are propelled along race 26 until they are ejected from the aperture 24 of the housing 14. Once ejected, they travel down chute 17 to a dispensing bowl 18.
  • the device 10 may be employed to deliver single units of food to dispensing bowl 18 reliably, no matter the difference in size or mass of the supply.
  • a controller in communication with the drive system controls rotation of the housing to dispense objects from the opening in the second end of the first housing portion one object at a time.
  • the controller causes the housing to rotate through one full rotation during which an object may or may not be dispensed based upon the arrangement of objects within the housing and especially at the end of the race 26 where it ends in the opening 24.
  • the controller in communication with an infrared optical transmitter 50 and an infrared optical sensor 51 senses the reflectance of the bowl 18.
  • the controller makes a determination of whether an object has been dispensed in the bowl 18. If it has, the device 10 is not rotated further until the object in the bowl 18 is no longer present (after e.g. being presented to an animal and consumed by the animal). If no object is detected in the bowl 18, the device 10 is rotated again, and the sensing procedure continued until an object is detected to have been dispensed.
  • Figures 8-13 depict another embodiment of the invention, namely device 10a.
  • the housing 14a can be fitted with a removable door 23a though which new objects can be introduced into hopper 21a of interior 22a of the housing 14a.
  • Figure 8 also depicts the longitudinal axis 20a formed by mounting the device 10a using a geared 16a affixed to one end of housing 14a and a fixed rotational pivot 42 at the other end of housing 14a.
  • Figure 9 shows a cross section of figure 8 and depicts the spiral race 26a only in the first frustoconical portion 12a of the housing 14a, while the second frustoconical portion 15a of the housing 14a is fitted with aggregating ribs 41 along the sidewalls.
  • the aggregating ribs 41 collect and funnel the objects to be dispensed toward the spiral race 26a.
  • the aggregating ribs 41 have lengths substantially in a direction parallel to the longitudinal axis 20a and widths substantially in a direction perpendicular to the longitudinal axis 20.
  • the surface of hopper 21a is angled downward toward the beginning of spiral race 26 of first frustoconical section 12a to ensure the items in the hopper are urged toward the race to ensure a constant feeding of items.
  • Figures 10 and 11 show a more detailed view of the first frustoconical portion 12a, including a view of the aperture 24a through which objects are dispensed.
  • Figures 12 and 13 depict the interior of the second frustoconical portion 15a of the housing 14a, with multiple views of the aggregating ribs 41.
  • the removable door 23 a is shown removed, providing access to the interior 22a of the housing via aperture 43 when the door is removed 43.
  • FIG. 14c An alternative embodiment in which the device 10 may be modified for production via injection molding techniques, by producing the first narrower section 12b is formed from two separate molded parts, 52b and 52b' (Figs. 14a and b, respectively), divided longitudinally, are attached to each other permanently subsequent to molding. A similar procedure can be used on the second, wider section 15b as shown in Fig. 14c.
  • the race 26b is defined by protrusions, e.g. protrusion 54b and 54b', formed on the interior surface 19b and 19b' which are indentations in the exterior wall, e.g. 56b' as shown in Fig. 14c. Therefore, housing 14b has a cross section that becomes more triangular in shape as the race 26b proceeds from the lower, wider end of the housing 14b to the higher, narrower end of housing 14b.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Zoology (AREA)
  • Birds (AREA)
  • Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)

Abstract

L'invention concerne un dispositif pour distribuer séquentiellement des objets individuels, qui comprend un boîtier comprenant une première partie boîtier qui présente une forme conique. La première partie boîtier comprend une première extrémité à proximité d'une réserve d'objets, et une seconde extrémité à proximité d'un emplacement où les objets doivent être distribués. Un chemin en spirale est disposé sur une surface intérieure de la première partie boîtier et s'étend de la première extrémité à la seconde extrémité de la première partie boîtier, le long duquel les objets à distribuer se déplacent.
PCT/US2015/047431 2014-08-29 2015-08-28 Distributeur tronconique en spirale WO2016033462A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/507,720 US20170295750A1 (en) 2014-08-29 2015-08-28 Spiraling frustoconical dispenser
CN201580057677.1A CN107072170B (zh) 2014-08-29 2015-08-28 呈螺旋形的截头圆锥形分配器
US16/896,042 US11234413B2 (en) 2014-08-29 2020-06-08 Spiraling frustoconical dispenser
US17/589,721 US20220151200A1 (en) 2014-08-29 2022-01-31 Spiraling frustoconical dispenser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462044104P 2014-08-29 2014-08-29
US62/044,104 2014-08-29

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US15/507,720 A-371-Of-International US20170295750A1 (en) 2014-08-29 2015-08-28 Spiraling frustoconical dispenser
US16/896,042 Continuation US11234413B2 (en) 2014-08-29 2020-06-08 Spiraling frustoconical dispenser

Publications (1)

Publication Number Publication Date
WO2016033462A1 true WO2016033462A1 (fr) 2016-03-03

Family

ID=55400661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/047431 WO2016033462A1 (fr) 2014-08-29 2015-08-28 Distributeur tronconique en spirale

Country Status (2)

Country Link
CN (1) CN107072170B (fr)
WO (1) WO2016033462A1 (fr)

Citations (5)

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US4688520A (en) * 1986-02-27 1987-08-25 Parks Jack C Automatic animal feeder and water dispenser
US6135056A (en) * 1999-04-22 2000-10-24 Kuo; Yung-Fang Automatic pet food dispenser at definite times and for a definite quantity
US6161503A (en) * 1999-09-21 2000-12-19 Blas; Antonio Water pressure activated animal food dispenser
EP1195085A2 (fr) * 2000-10-04 2002-04-10 Riccardo Riviera Distributeur programmable pour distribuer un aliment sec, en particulier pour des animaux familiers et similaires
US6701866B1 (en) * 2003-04-09 2004-03-09 Shenz-Tsornz Shieh Automatic feeding apparatus for pets

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US5054657A (en) * 1990-07-30 1991-10-08 Morse Hugh B Sanitary bulk food dispenser with rotary cone feeder
US5884806A (en) * 1996-12-02 1999-03-23 Innovation Associates, Inc. Device that counts and dispenses pills
US20050066905A1 (en) * 2003-09-26 2005-03-31 Morosin Rose Chan Automated pet feeder
US9896260B2 (en) * 2005-03-09 2018-02-20 Twist 'n Serve, LLC Elevating lift dispenser and container
US9174229B2 (en) * 2010-06-11 2015-11-03 The Procter & Gamble Company Dispenser having non-frustro-conical funnel wall
CN203261968U (zh) * 2013-05-06 2013-11-06 顾美 宠物训练喂食装置
CN203290042U (zh) * 2013-06-20 2013-11-20 长兴华宝宠物玩具有限公司 一种宠物喂食器
CN103991562A (zh) * 2014-03-14 2014-08-20 南京大树智能科技股份有限公司 一种片剂药品缺粒补药装置
CN103991686A (zh) * 2014-05-29 2014-08-20 上虞市奥凯电子科技有限公司 一种螺旋式自动加料装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688520A (en) * 1986-02-27 1987-08-25 Parks Jack C Automatic animal feeder and water dispenser
US6135056A (en) * 1999-04-22 2000-10-24 Kuo; Yung-Fang Automatic pet food dispenser at definite times and for a definite quantity
US6161503A (en) * 1999-09-21 2000-12-19 Blas; Antonio Water pressure activated animal food dispenser
EP1195085A2 (fr) * 2000-10-04 2002-04-10 Riccardo Riviera Distributeur programmable pour distribuer un aliment sec, en particulier pour des animaux familiers et similaires
US6701866B1 (en) * 2003-04-09 2004-03-09 Shenz-Tsornz Shieh Automatic feeding apparatus for pets

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CN107072170A (zh) 2017-08-18
CN107072170B (zh) 2021-08-31

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