Trash Bag Retainer
An apparatus for easy holding of a trash bag in a container: It comprises of a) a holder made of two magnetically coupled pieces which can engage or disengage with each other; and b) a container, having an open end, with one of the two holding pieces attached rigidly to an outside portion of the container. When placing a portion of a trash bag inside the container with part of the outside portion being captured by the two holding pieces in the coupled state, the trash bag is consequently folded around the rim of the container and around the two magnetically coupled pieces. The resulting total folding angle of the trash bag is greater than 210° which greatly reduces the force needed to hold a heavy trash bag at the coupling section of the two holding pieces. The apparatus can be easily operated with one hand.
(Not Applicable)
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH/DEVELOPMENT(Not Applicable)
BACKGROUND OF THE INVENTIONAs is often desired, one needs to attach a sheet to a solid structure so that the sheet, or a portion of it, does not move with respect to the solid structure. An example is the attachment of a trash bag to a trashcan. For simplicity sake and unless otherwise stated, we use trash bags and trashcans for the general discussion of this invention.
To keep a trashcan clean and for easy trash removal, a trash bag is typically used inside a trashcan. Trash bags are notoriously known for easily falling into a trashcan when material is placed inside of them. As a result, the material may fall outside of the trash bag and into the space between the trash bag and the trashcan, which makes it difficult to pick the material up and makes the trashcan dirty.
Many trash bag and trash bag retainer designs have been introduced in the past in order to solve the problem of a trash bag falling into a trashcan. Prior arts include many different designs to hold the trash bag in place, for example, tabs inside a trashcan (U.S. Pat. No. 3,825,150); an elastic band (U.S. Pat. No. 4,338,979); elastic band with protruding structures (U.S. Pat. No. 7,055,224); handles on a trash bag attached to holders on a trashcan (U.S. Pat. No. 4,437,634); a wire frame (U.S. Pat. No. 4,623,111); side bars for supporting handled trash bags (U.S. Pat. No. 5,054,724); interlocked rings (U.S. Pat. No. 5,062,533); clips (U.S. Pat. No. 5,645,186); two handles (U.S. Pat. No. 5,671,861); clamps designed into a trashcan (U.S. Pat. No. 6,484,374). These inventions and others have advanced the art, but are still not convenient enough.
It is worth mentioning, that there are no records in the literature of using magnets directly for holding a trash bag. The main reason of this curious absence is that trash bags are slippery. The straightforward way of holding a trash bag with magnets, as used in holding a piece of paper on a magnetic board, requires a strong magnet which makes its usage impractical. The object of this invention is to device an apparatus so that the attachment (or removal) of a sheet to (or from) a solid structure, such as the attachment (or removal) of a trash bag to (or from) a trashcan, can be made conveniently.
BRIEF SUMMARY OF THE INVENTIONThe present invention relates to an apparatus for the attachment of a sheet or a bag to a solid structure. An example is the attachment of a trash bag to a trashcan. For simplicity sake and unless otherwise stated, we use trash bags and trashcans for the general discussion of this invention.
Our apparatus consists of a magnetically coupled retainer pair, which we call “BagMarshall” (see www.BagMarshall.com). One piece of the BagMarshall (the 1st piece) is attached rigidly to the trashcan, while the other can engage or disengage with the 1st piece.
When placing a portion of a trash bag inside the trashcan with part of the outside portion being captured by the two holding pieces in the coupled state, the trash bag is consequently folded around the rim of the trashcan as well as around the two magnetically coupled pieces. The total folding angle of the trash bag is greater than 210° between the portion along the inside wall of the trashcan and the portion at a coupling interface of the two BagMarshall pieces.
Such folding reduces the force needed to hold a heavy trash bag at the coupling interface(s) of the BagMarshall as compared to a total folding angle of 180° or less, thus making it convenient to use. In fact, the present invention can be operated easily with a single hand.
Drawings herein are for purposes of illustrating the preferred embodiments of the present invention only, not to limit the present invention. There are no dimensional specifications in these drawings so that dimensions may be altered to fit with specific applications.
In one embodiment (
In another embodiment (
As shown in
As shown in
The outside surface of 11 in
The placement of a magnet or a magnetic material (11) in piece 10 can be at different locations from that shown in
There are numerous variations of the present embodiment. Variations in dimension and structure may be implemented by one skilled in the art. Some exemplary variations are shown in
In all above discussions, the two pieces of a BagMarshall are made of rigid material. The two pieces can also be made of flexible material so that they can easily conform to a curved structure when needed. An example is the usage of magnetic tapes.
Illustrations above provide exemplary embodiments of the present invention. The scope of the present invention is not limited by these illustrations. The number of variations, some of which are shown in this presentation, is too many to list. These variations may be implemented by one skilled in the art in view of this disclosure.
REFERENCES CITED
Claims
1. A magnetic retainer comprises of two pieces: one of them is attached rigidly to a trash can, while the other can engage with the 1st piece and together they capture a portion of a trash bag affixing it to the trash can.
2. The retainer of claim 1 can be of any size and shape
3. The retainer of claim 1 can be made of rigid or flexible material.
4. The retainer of claim 1 can be used by itself or with other retainers.
5. The retainer of claim 1 wherein the 1st piece can be integrated into a trash can and may be the top rim of the trash can with a magnet or a magnetic piece placed under it.
6. The retainer of claim 1 wherein the shape of the 1st piece may be such that it attaches easily to a curved trash can other than a trash can with flat sides.
7. The retainer of claim 1 wherein the 2nd piece may be attached flexibly to the 1st piece or to the trash can.
8. The attachment in claim 7 may be by different methods, e.g., a string or a ribbon.
9. An apparatus for holding a trash bag in a container comprising of
- A. a holder made of two magnetically coupled pieces (the two holding pieces) which can engage or disengage with each other;
- B. a container, having enclosed sides and at least one open end, with one of the two holding pieces in A (the 1st holding piece) attached rigidly to an outside portion of the container;
- Wherein, when placing a portion of a trash bag inside the container with part of the outside portion being captured by the two holding pieces in the coupled state, the trash bag is consequently folded around the rim of the container as well as around the two magnetically coupled pieces and the total folding angle of the trash bag is greater than 210° between the portion along the inside wall of the container and the portion at a coupling interface of the two holding pieces.
10. The apparatus of claim 9, whereby the attachment of the 1st holding piece is on the side of the container.
11. The apparatus of claim 9, whereby the container has a rim extending beyond the plane of the container side and the attachment of the 1st holding piece is under the rim of the container.
12. The apparatus of claim 11, whereby the 1st holding piece is integrated into the rim of the container.
Type: Application
Filed: Dec 22, 2007
Publication Date: Mar 5, 2009
Inventor: Bo-Yang Lin (Richardson, TX)
Application Number: 11/949,032
International Classification: A44B 21/00 (20060101); B65D 33/30 (20060101);