The present invention relates generally to the field of dog waste collection, and more particularly to methods and systems for dog waste bag dispensing
When walking one's pet it is common to bring a device that holds pre-rolled waste bags, such as shown in U.S. Pat. No. 7,850,039B1, in order to pick up one's pet's excrement while on a walk.
Oftentimes pets will need to use one or more bags for a walk, especially if one is walking multiple pets. If one's holder has no bags left, or even if there are one or two left, this will leave one in a situation where they will need to pick up the pet's excrement, but have no waste bags left to do so.
The state of the current art is similar to that of U.S. Pat. No. 8,113,381B2, wherein small lightweight devices are added to one's existing leash that hold a roll of waste bags. Though devices such as US20220356001A1 exist to show the roll as a means of estimating the number of bags left, it is very difficult to predict how many bags are left by looking at a roll. Other solutions such as US20210227794A1 include small windows to look at the roll as a means to predict how many bags are left, but this is even more difficult to use than seeing the whole roll.
Therefore, there needs to be a solution to ensure one does not run out of waste bags during a walk with their pet, while remaining small, light, and convenient.
The present invention can provide an apparatus which attaches to one's existing leash that can hold a roll of waste bags. The apparatus can contain a mechanism that sits against the roll of bags such that when bags are removed the mechanism also moves, this motion can be used to create a gauge visible on the outside of the apparatus to show how many bags remain in the apparatus. The apparatus can contain a quick and easy to operate opening mechanism to allow for roll replacement during a walk. The apparatus can be designed to work with most waste bag rolls. The apparatus can be designed to be as small as possible with minimal empty space to keep it lightweight and of minimal inconvenience to the user. Together, this allows for an apparatus which is more convenient and easier to use than in the prior art, while remaining light and small.
The device can include a member rotatably attached to an outside housing through the use of a shaft. The device can include a spring that pushes the end of the member against the outside of the waste bag roll. In some embodiments there can be a flexible sheet that can attach to the end of the rigid shaft. The flexible sheet can fit through channels in the outer housing and can be visible on the outside of the housing through openings. When waste bags are used, the flexible sheet position can change and this can be used as a visible gauge to show the amount of waste bags remaining.
The device can include a member rotatably attached to an outside housing through the use of a shaft. The device can include a spring that pushes the end of the member against the outside of the waste bag roll. In some embodiments there can be a second member rotatably attached to the first member creating a two bar linkage. There can be cutouts in the housing to see the end of the second member which can act as a visual gauge. When waste bags are used, the position of the end of the second member can change and this can be used as a visible gauge to show the amount of waste bags remaining. In some embodiments there can be an additional piece attached to the end of this second member to create a larger visual gauge.
In some embodiments there can be one flexible sheet rigidly attached to the housing. This flexible sheet may travel through channels in the outer housing and can be visible on the outside of the housing through openings. When waste bags are used, the flexible sheet position can change and this can be used as a visible gauge to show the amount of waste bags remaining.
In some embodiments, the gauge can be added to any apparatus which holds a waste bag roll. The gauge can be used to show the number of bags left on in-use waste bag rolls. The gauge alternatively can be used to show if there is a spare roll inside of a spare roll holding space.
In some embodiments the gauge can use a color scale to show the current state of waste bags left. This can also be used as a binary full or empty to show when no roll is inserted in the apparatus.
In some embodiments the gauge can use an alphanumerical scale to show the current state of waste bags left. This can also be used as a binary full or empty to show when no roll is inserted in the apparatus.
In some embodiments the gauge can use shapes to show the current state of waste bags left. This can also be used as a binary full or empty to show when no roll is inserted in the apparatus.
The device can include a large opening for the in-use waste bag roll. The opening is designed so that one's fingers can fit to pull out the first bag of the roll and for any bags that may get stuck during use. The opening is used to pull bags out of the apparatus one at a time.
The device can include a series of loops along the outside such that a strap can be attached to the device, which can then attach to one's existing leash. The device and strap can be configured to one's preference. The device and strap can be attached to a leash to allow for a long hanging application. The device and strap can instead be attached to a leash to allow for a tight hanging application. In particular embodiments this strap can be made of many types of materials such as cloth, leather, synthetic strapping, metal, plastic, rubber, silicone, and other similar materials.
The device can include two halves containing space to hold a waste bag roll. Each half can have small shafts onto which waste bag rolls can rotatably mount onto. The shafts allow for smooth operation of the in-use waste bag roll, along with consistent holding of the spare roll during use.
In one embodiment the apparatus can be comprised of two halves screwably attached through the use of threads.
In one embodiment the apparatus can be comprised of two halves rotatably attached through the use of a hinge and shaft. In other embodiments, the apparatus may use other hinge designs such as a living hinge, a shaft directly on the halves, or other hinge designs known to those in the art. In some embodiments, a spring or similar mechanism can be added to the hinge to help in opening and closing of the apparatus.
In one embodiment the apparatus can have a clip to secure the two halves closed. In one embodiment this clip can be hidden inside of the device for aesthetic purposes. In other embodiments the clip can be on the outside, of a different size, of a different shape, and include other elements known to those in the art
In one embodiment, the two halves can be not attached to one another permanently. The halves can be removed from one another and attached together through the use of clips, friction fits, clasps, straps, hooks, or other mechanisms known to those in the art.
In some embodiments, the outer housing can have a rigid protrusion to help with ripping a waste bag off of the roll
In some embodiments, the outer housing can have protrusions that allow for used waste bags to be attached
In some embodiments, the parts can be made of rigid materials such as plastics, metals, and composites.
In some embodiments, the parts can be made of a combination of soft and rigid materials such as fabrics, cloth, silicone, and rubber.
The foregoing will be apparent from the following more particular description of example embodiments, as illustrated in the accompanying drawings in which like reference characters refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating embodiments.
Details of some embodiments of the apparatus in the present invention are described below
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This application claims the benefit of U.S. Provisional Application No. 63/470,389, filed on Jun. 1, 2023. The entire teachings of the above applications are incorporated herein by reference.
Number | Date | Country | |
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63470856 | Jun 2023 | US |