1. Field of the Invention
The invention generally relates to a device used for picking up and disposing of animal waste, and more particularly, to a biodegradable pet waste collection device.
2. Discussion of the Related Art
Pet owners are responsible for the actions of their pets. In many municipalities, it is required by law that pet owners must clean up defecation left by his or her pet if the defecation does not occur on the owner's property. Many pet owners do not pick up the waste due to current products being crudely designed or cumbersome to carry. Also, many of the current devices require the owner to come into direct tactile contact with the waste.
For example, a common method currently used in the removal of pet waste is a common plastic bag. The owner reaches into the bag, picks up the waste while using the bag to shield his or her hand, and then inverts the bag to dispose of the waste into a waste receptacle. Pet owners often find this method unpleasant and therefore do not pick up the waste, leaving the area unsanitary.
In addition, the use of plastic bags is not good for the environment since they can take up to 1,000 years to decompose in the landfills. In addition, the bags often end up in the storm sewer systems causing them to be clogged or overrun with bags.
Other conventional methods include the use of a large device, e.g., a long pole with a scoop attached to the end. The owner uses the scoop to pick up the waste until they are able to dispose of it properly. These products are cumbersome and awkward to carry on a walk and are therefore undesirable.
There is a need for an apparatus or device that allows the convenient features of a plastic bag but also has the ability to dispose of the waste easily.
Accordingly, the invention is directed to a biodegradable pet waste collection device that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
An advantage of the invention is to provide an inexpensive product that is convenient to operate and carry.
Another advantage of the invention is to provide a biodegradable bag and collection aid (or aids) that are convenient for carrying pet waste to a waste receptacle.
Yet another advantage of the invention is to protect the user while picking up waste.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and oilier advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described, the invention includes various assortments of collection aids.
In another aspect of the present invention, the collection aids are attached to the bag and perforated to allow easy removal.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
In the drawings:
Aspects of the invention are directed towards an apparatus used to aid in the removal of pet waste left behind by animals. However, the apparatus can also be used to pick up any unwanted waste such as dead rodents, vomit, and the like.
In one embodiment of the invention, the apparatus comprises a bag for collecting the waste. The bag may be made of a waterproof, nonabsorbent polyethylene, a thin flexible plastic, and is similar to bags used in grocery stores for customers to carry out their groceries. The bag is open at one end, with a closed base. In a preferred embodiment the bag is made of biodegradable and/or flushable materials. Alternatively, the bag can be made of other materials for flexibility of choice. The preferred thickness of the bag is 1.5 mil. The bag is preferably rectangular with gusseted sides but alternatively can be of other shapes. The bag is preferably colored to hide the pet waste and make it more discreet once it is inside the bag. The preferred size for the bag is 8″×5″×16″. The bag can also be produced with handles, such as a pair of strip loops as shown in
In another embodiment of the invention, bags may be stored and dispensed from a container, for example, a box or plastic bag, that has an opening by which to access and grasp the lead bag, allowing the user to pull out one bag at a time. Similarly, bags can be provided either individually or in a roll or sheet form. In another embodiment, bags may be releasably joined at one end along an outer surface; for example, at an open, top end such as with double-handled plastic grocery bags dispensed on supporting stands at supermarket checkout counters or the like.
In another embodiment of the invention, the apparatus comprises a bag as described in the previously mentioned embodiments, and a thin collection aid (CA) for picking up the waste. The CA is sized to fit inside the bag, and is initially attached at its base in the bag's inside corner. The collection aid may be made of paperboard, cardboard, card stock or the same biodegradable or flushable materials as the bag. The CA can also be made of other materials for flexibility of choice. The CA may take the form of a garden trowel to facilitate collecting the pet waste. Such a CA has a flat rectangular base, with a curved leading edge, and a concave face. The CA can also be of alternate shapes. The CA may be attached to the inside corner of the bag, with the attachment either by gluing or other techniques, or combinations of techniques, accepted in the art. The surfaces of the CA may be smoothed or roughened, or a combination of textures, to facilitate the collection and retention of the pet waste in the apparatus. In the embodiment that the bag is made of a biodegradable or flushable material, the collection aid is also made respectively from biodegradable or flushable material, though it may be of a different such material than the bag.
In another embodiment of the invention, a pocket attached to the bag can hold additional collection aids. The pocket can be attached to the bag using glue, heat sealing, spray bond, tape, or any other suitable technique or combination of techniques accepted in the field. The user will be able to take an extra CA out of the pocket to aid in the process of collecting the pet waste. The pocket can be made out of the same material as the bag, but in the embodiments in which the bag is made from a biodegradable or a flushable material, the pocket material also has the respective property. The pocket preferably has the same shape as the CAs it will be housing or can be of alternate shapes. To help overcome any resistance while collecting the waste, the additional CA would be used to help push the waste onto the first CA attached to the bag. The additional CA may be made from the same material as the first CA, or from a different suitable material. In another embodiment, additional CAs are placed inside the invention's packaging to allow the user to have extra collection aids on hand as needed.
For a typical use, the bag is unfolded and the user's hand grasps the base of the CA from the outside of the bag, the bag is then turned inside out so that the collection aid is outside of the bag, with the bag now extending over the user's hand and wrist. The waste is scooped onto the CA, and the end of the bag up the user's arm is then pulled down over the waste and CA back to its original orientation, leaving the waste inside.
In another embodiment of the invention, an extra collection aid is provided, in which this CA is perforated near its rectangular base, just above where this CA is attaches. This perforated CA is attached to the first CA, and are also attached at their joined bases to the bag. Such a perforated CA may have a curved leading edge, but can be of alternate shapes. The end opposite of the leading edge will have a perforation all the way across, allowing the user to easily detach the CA. The perforated CA can be made out of the same material as the first collection aid, or any suitable material. The perforated CA can be affixed to the first, solid, CA with a pressure-sensitive adhesive such as the adhesive used on a sanitary napkin.
In one embodiment of the invention, the entire apparatus is dimensioned and configured to be folded to fit easily in the front pocket, back pocket, wallet, or purse of the user for easy carrying.
Reference is now be made in detail to an embodiment of the present invention, an example of which is illustrated in the accompanying drawings.
The bag 130 is preferably made of polymeric oxo biodegradable (OBD) plastic, polylactic acid (PLA starch based plastic), or micro-biodegradable plastic, e.g. “Ingeo”™ biopolymer made by NatureWorks LLC, “Encore”™ biodegradable additive made by Command Packaging in California, or “EcoPure” made by Bio-Tec Environmental, LLC in New Mexico. Bag 130 can be flushable, made with flushable paper such as suitable paper used in flushable tissues or toilet paper, water soluble plastic, e.g., polyvinyl alcohol film disclosed in U.S. Pat. No. 2,365,315, cold water soluble plastic foil, e.g., Solvy manufactured by Aqua film, LTD and sold by Sulky of America, or temporary wet strength resins, e.g. Caldas 10 (manufactured in Japan) and CoBond 1000 (manufactured by National Starch and Chemical Company). The thickness of the bag 130 can vary from 0.3 mil to 3.0 mil, however, the preferred thickness is 1.5 mil. Alternatively, the bag 130 can be made out of polymeric, film, laminate, fabric, paper, tissue, foam materials or a waterproof, nonabsorbent polyethylene, a thin flexible plastic, similar to bags used in grocery stores for customers to carry out their groceries.
Bag 130 is preferably rectangular in shape with gusseted sides. Alternatively, it can be square, round, oval, trapezoidal shaped, mitten shaped (having a thumb receiving portion adjacent to a central pouch space), or any other shapes for the particular embodiment of practicing the invention. The bag 130 can be clear, opaque or preferably colored to hide the pet waste 180 and make it a little more discreet once it is inside the bag during transit. Preferably bag 130 may be produced in three sizes to accommodate different size pet waste 180 from various sized animals. The preferred dimensions of the bags are of different sizes, a small bag 6.5″×4″×12″; a medium bag 8″×5″×16″; and a large bag 10″×5″×17″. The bags either may or may not have handles.
The collection aid 120 is rectangular in shape with one end preferably having a curved leading edge to help ease the scooping up the pet waste 180. The CA 120 can be made out of any suitable material including, but not limited to, paperboard, cardboard, card stock, pressed paper, stiff plastic, or foam. The CA is preferably sized respective to the bag with which it will be attached, three sizes being small 3″×4″, medium 4″×5.75″, and large 5″×6.5″. The surface of the CA 120 may be smoothed or roughened, or a combination of textures, to facilitate the collection and retention of the pet waste 180 on the apparatus.
Bags may be provided in a box or bag that has an opening by which to access and grasp the lead bag, allowing the user to pull out one bag at a time. The device can then be placed in a pocket, purse, or wallet for easy transportation before use. Similarly, bags can be provided either individually or in a roll or sheet form. In another embodiment (not illustrated), bags may be releasably joined at one end along an outer surface; for example, at an open, top end such as with double-handled plastic grocery bags disposed on supporting stands at supermarket checkout counters or the like. A modified type of dispenser can be enclosed in a metal case and placed throughout the community in parks, apartment complexes, hotels, residential subdivisions, etc. where bags can be dispensed out one at a time for individuals to use to help keep the community clean of pet waste 180. The small hole placed in the center top portion of the bag assists in supporting and helping to release the bags from the dispenser. Small holes 1101 may also be placed in the top part on the handles, as shown in
The bag 630 comprises a closure in the form of handles which consists of a pair of handles 638A and 638B. The handles 638A and 638B provide a convenient mode of transportation to a waste receptacle once there is pet waste in the internal chamber 637. Alternatively, the bag 630 can be made without the handles 638A and 638B.
The user typically grasps the closed bottom end 634 of the bag 630 while also grabbing the rear edge 624 of the CA 620. The bag 630 is then inverted over the user's hand 616, wrist, and forearm 618, to provide protection from the pet waste 680, and exposing the CA 620 and perforated CA 670. At this time, the user may either detach the perforated CA 670 at the perforation or leave it affixed to the first CA 620. The user lightly depresses the leading edge 622 of the CA 620 slightly in front of the pet waste 680, glides the CA 620 under and scoops up the pet waste 680. If there is any resistance from the pet waste 680, the user may use the detached perforated CA 670 to help push the pet waste 680 onto the CA 620. The bag 630 is then inverted back to its original position and the perforated CA 670 can be placed inside the internal chamber 637 along with the pet waste 680. The handles 638A and 638B are then tied together to close the bag 630.
In an another embodiment, the lower portion of the perforated collection aid 800, from the base edge to the perforation 820, is permanently attached to a solid CA, which itself is attached to the inside corner of the bag. The preferred permanent attachment is with glue, though the base of the perforated CA 800 can be attached to the solid CA using the heat sealing process, spray bond, seaming tape, stitching, deep embossing, stapling, stitching, or any other suitable technique or combination of techniques acceptable in the field. Next, the top portion of the perforated CA 800, anywhere from the perforation 820 to the leading edge 810, can be affixed to the solid CA with a pressure-sensitive adhesive such as the adhesive used on a sanitary napkin, allowing them to either remain together as one piece or for the perforated CA to be easily detached for use. In operation, perforated CA 800 can either be kept attached to the solid CA as one reinforced CA for picking up waste with a reinforced leading edge 810, or else the perforated CA 800 can be detached from the solid CA at the perforation 820. The surfaces of the perforated CA 800 may be smoothed or roughened, or a combination of textures, to facilitate the collection and retention of the pet waste on the apparatus.
The user would scoop the cat waste onto CA 1000 and shake it gently back and forth causing the litter to fall through the holes, back into the litter box. The CA 1000 can be made out of any suitable material including, but not limited to, paperboard, cardboard, card stock, pressed paper, stiff plastic, or foam. The surface of CA 1000 may be smoothed or roughened, or a combination of textures, to facilitate the collection and retention of the pet waste on the apparatus.
Additionally, a perforated CA 1121 is glued to the inside corner of the bag directly on top of the solid CA 1120. The lower portion of the perforated CA 1121, from the rear edge to the perforation, is permanently affixed to the solid CA with glue to keep them from separating. Solid CA 1120 and perforated CA 1121 are affixed with a pressure-sensitive adhesive such as the adhesive used on a sanitary napkin. The adhesive allows the user to either keep the solid CA 1120 and perforated CA 1121 together without them separating while using the apparatus or gives them the option of removing the perforated CA 1121 for use. Alternatively, the perforated CA 1121 and the solid CA 1120 can be attached using the heat sealing process, spray bond, seaming tape, stitching, deep embossing, stapling, stitching, or any other suitable technique or combination of techniques acceptable in the field. In operation, perforated CA 1120 can be used together with the affixed solid CA 1121 as one reinforced CA picking up waste with a reinforced leading edge. Alternatively, perforated CA 1121 can be detached from the solid CA 1120 via the perforation.
The bag 1130 is preferably made of polymeric oxo biodegradable (OBD) plastic, polylactic acid (PLA starch based plastic), or micro-biodegradable plastic. For example “Ingeo”™ biopolymer made by NatureWorks LLC, “Encore”™ biodegradable additive made by Command Packaging in California, and “EcoPure” made by Bio-Tec Environmental, LLC in New Mexico. The thickness of the bag 1130 can vary from 0.3 mil to 3.0 mil; however, the preferred thickness is 1.5 mil. Alternatively, the bag 1130 can be made out of polymeric materials, material, film, laminate, fabric, paper, tissue, foam, or a waterproof, nonabsorbent polyethylene, a thin flexible plastic, similar to bags used in grocery stores.
Bag 1130 is rectangular in shape with gusseted sides. Alternatively, it can be square, round, oval, trapezoidal shaped, mitten shaped (having a thumb receiving portion adjacent to a central pouch space), or any other shapes for the particular embodiment of practicing the invention. The bag 1130 can be clear, opaque, or preferably colored to hide the pet waste 1180 and make it a little more discreet once it is placed inside the bag during transit. Preferably, bag 1130 may be produced in three sizes to accommodate different size pet waste 1180 from various sized animals. In an embodiment for bags with handles, the preferred dimensions of the bags are: small 6.5″×4″×12″; medium 8″×5″×16″; and large 10″×5″×17″; with these dimensions including the handles. In an alternate embodiment for bags without handles, the bags' preferred sizes are: small 6.5″×4″×8″; medium 8″×5″×11.5″; and large 10″×5″×13″.
The solid collection aid 1120 is rectangular in shape with one end having a curved leading edge to help with the ease of scooping up the pet waste 1180. The solid CA 1120 can be made out of any suitable material including, but not limited to, paperboard, cardboard, card stock, pressed paper, stiff plastic, or foam. The solid CA 1120 may be produced in three sizes relative to the bag ranging from small 3″×4″, medium 4″×5.75″, and large 5″×6.5″. The surface may be roughened to facilitate the retention of the pet waste 1180 on the solid CA 1120. The surfaces may be smooth, rough, or a combination thereof, to facilitate scooping the pet waste 1180 on the solid CA 1120.
Bags may be provided in a box or bag that have an opening by which to access and grasp the lead bag, allowing the user to pull out one bag at a time. The device can then be placed in a pocket, purse, or wallet for easy transportation before use. Similarly, bags can be provided either individually or in a roll or sheet form. In another embodiment, bags may be releasably joined at one end along an outer surface; for example, at an open, top end such as with double-handled plastic grocery bags disposed on supporting stands at supermarket checkout counters or the like. A modified type of dispenser can be enclosed in a metal case and placed throughout the community in parks, apartment complexes, hotels, residential subdivisions, etc. where bags can be dispensed out one at a time for individuals to use to help keep the community clean of pet waste 1180. The small holes 1101 placed in the center top portion of the bag and in the top of each handle assist in supporting and helping to release the bags from the dispenser.
Another embodiment of the invention is a pet waste collection kit comprising a bag having an unsealed top and a closed base end, a collection aid attached to the inside corner of the closed end of the bag, and tissues and/or other sanitary items.
Another embodiment of the invention is directed towards a method for collecting and disposing pet waste that uses a biodegradable bag and built-in disposable collection aids. The user first grasps the lower closed end of the bag while also grabbing the built-in disposable collection aid (CA). The bag is then inverted over the user's hand and forearm, thus providing protection from the pet waste and also exposing the internally attached CA. The leading edge of the CA acts as a scoop and facilitates the collecting of the pet waste. The bag is then inverted once again to its original position, and the bag is closed. Methods of closing the bag may include handles that are part of the bag, which are tied to close the bag. Such handles can be, but are not limited to, loop handles, which further provide a convenient method of transportation to a waste receptacle.
It will be apparent to those skilled in the art that various modifications and variation can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
The present invention claims priority from U.S. Provisional Patent Application Ser. No. 61/491,011 filed May 27, 2011, and is incorporated herein by reference in its entirety for all purposes as if fully set forth herein.
Number | Date | Country | |
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61491011 | May 2011 | US |