Temporary paint can rim cover
The invention is a temporary cover for a paint can's rim, for protecting the rim from paint or liquid while pouring. The invention is substantially similar lengthwise/an extruded part. An embodiment's cross-section (FIG. 15) can be a substantially C-shaped portion (27) plus a substantially narrow-tipped elongated flat portion (from 24 to 26), for a total shape like a “b”, with the b's circular section being open on the front like a “c”. When the cup portion is pressed/secured on to a paint can rim: the cup's open side faces substantially peripherally and/or downward and the tip of the elongated portion faces substantially upwardly (FIG. 23). The invention can be made a size and shape to also be stored on a can's metal wire paint can handle (handle positioned inside of the C-shaped cup). Placed on the can handle, the cover can add handle cushioning for carrying the paint can.
Application No. 60/880,471 filed Jan. 16, 2007
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENTNot Applicable
REFERENCE TO A MICROFICHE APPENDIXNot Applicable
BACKGROUND OF INVENTIONThis invention relates to dispensing, drip leakage or waste catching or disposal. This invention also relates to miscellaneous hardware—handle, handle component, or handle adjunct, detachable handle for container. This invention may also relate to receptacles—container attachment or adjunct—container holder—spaced upper and lower elements connected by a handle structure. More specifically, this invention relates to a means to keep paint from getting in the (currently metal) sealing groove of a (one gallon) paint can, like when paint or liquid is poured from that can. When not in use on a can rim, the invention relates to objects attached to a can handle, and the invention relates to handle covers.
PRIOR ART
Prior art one gallon cans for paint, stains, varnishes, and other liquids, have about an exterior rim diameter [I.D.≈5.5″ (14 cm.), O.D.≈6.56″ (16.7 cm.)]. A wire handle attached to such a can is often about 10 gauge wire and shaped as an ≈6.5″ (16.5 cm.) diameter curve.
There are many paint can pouring lid/covers for this standard rim. They are for the purpose of keeping paint from drying in the can after initial opening. They all substantially attach to a metal can rim like that of
To compensate for the high cost and time consuming application time of a lid/cover, most provide a ‘second benefit’. Some provide a brush scraping means (see Hayduchok's patent cited below). Some are designed to be a permanent replacement lid.
Many prior art covers are designed to provide a secure seal around the entire rim of a can to keep paint off the rim of the paint can. For pouring lids, here are disadvantages in having a continuous/complete circular seal: In order to keep paint off the paint can rim, the pouring lid must hold tight against the interior lip of the can. This basically requires extending the rim cover UNDER the inside rim of the can. The more secure/deep this ‘undercut’ is, the better the lid keeps paint off the can rim. BUT, the more secure/deep this undercut is, the extremely more difficult it is to pull the pouring lid off. This is mostly a problem because the metal rim is rigid (unlike plastic food containers) and does not bend to help release or attach. It is the same type effect as placing one's hand in a narrow-necked jar, making a fist, and trying to pull one's hand out while still making the fist. Also, the more the ‘undercut’, the harder it is to apply the lid or cover. D.A.L.E.S. Corporation manufactures POURit® lid: it has ‘undercut’ TABS, which allows a user to more easily snap the lid on a can. The POURit® lid has locking tabs ≈0.5″ wide, spaced ≈0.4″ apart. When placed on a paint can these tabs lock perhaps 1 mm under interior lip 18. The lid must be snapped on securely all around. One disadvantage of these tabs is that the lid is very difficult to to pull off. Another disadvantage is that the spaces between the tabs allows extensive liquid (paint) to flow into the rim channel, which one may believe the moulded lid is purchased to prevent. Therein, this lid cannot be taken off and used on another can of paint till after the can it is on is empty (because the can rim is contaminated with paint). Re-using the lid requires extensive washing of the groove. Over all, moulding a circular lid with plastic causes a trade-off between being flexible enough to be snapped on a can rim, and rigid enough to not let paint flow in structured areas. Pourit® is injection moulded, 2 pieces (includes screw-on pouring cap), and therein expensive to manufacture. The POURit® lid costs about $3 at Lowe's in 2006, where a new clean metal 1 gallon can with lid costs only about a dollar more.
Plastic pouring lids (or even half-lids, like Hayduchok-cited below) require the user to work at being sure it is completely secure on the can, or else the cover/lid will either come off the can or allow paint to get into the can rim. Prior art plastic lids do not provide the long-term great seal that a metal-rimmed can lid provides. When preparing to paint, a user often just wants to be able to stir the paint and pour, not go through the hassle of securing a pouring lid. On top of that, the pouring lid must be cleaned thoroughly for reuse, which is only a bit less distasteful than cleaning the actual paint can rim. It can be said that injection moulded covers are expensive for the benefit they provide.
U.S. Pat. No. 4,009,802 by Leon Hayduchok, granted Mar. 1, 1977, entitled PAINT CAN ATTACHMENT and U.S. Pat. No. 5,195,662 by Ted Neff, granted Mar. 23, 1993, entitled PAINT CAN SPOUT ATTACHMENT show semi-circular injection moulded paint can attachments. They both slightly grab beneath the can's interior rim. Because they don't encircle the can's entire rim they would be easier to remove than an encircling lid. Because they cover nearly half the can, it makes brush dipping from the can more difficult because it increases the height or distance out from which one must reach over to dip paint. (Yet brush dipping/wiping is described as a second benefit). Their brush wipe with pouring spout make for an odd combination, as one usually pours paint out to be used in another container, and therein the paint brush wipe would not be needed on the paint can, except to get the last of the paint. And the last of the paint is now harder to reach, and once the can is near empty, a clean rim has no residual value.
Full circular and semi-circular lids often try mating with the rim's deep channel. Because prior art rim covers cannot grip deeply under a can rim's interior lip, they often try mating with the exterior portion of the rim's deep channel (exterior side). Hayduchok's semiannular flange 4 (his
That is why lids, like Neff's half-circle cover (rib section 48 in his
A prior art paint can rim extends proximally into the can a substantial distance (≈14 mm). This provides an extensive area for a rim cover to secure underneath. Locking a cover under the can's interior rim lip, or even deeper rim channel, would provide the most secure seal against paint getting in the rim channel, but there has not been a technically workable way to benefit from this deep channel. What has been unrecognized in prior art is the combination of what a user desires: A quick inexpensive, no clean-up way to pour paint without getting paint on the can rim, so the original metal lid will reseal the paint can.
Paint is currently being sold in cans with metal rims, in plastic jugs, and in large (5 gal) plastic buckets. The plastic containers have pouring rims or spouts with narrow-tipped edges sharp enough so the paint will pour without dripping much back against the container. 5 gallon buckets have ≈4 mm diameter rounded rim edges (for locking to the gasketed bucket lid). 5 gallon bucket lids have a pouring spout. Though paint can be poured from these buckets without the lid, the slightly rounded rim edge can catch paint enough to drip down or outside/exterior to the bucket.
Prior art tubing with a continuous slit is prior art. Accordion-ribbed slit molded? rigid plastic tubing is prior-art used as a cord keeper accessory. Two examples are CABLE TAMER and an unnamed version sold at Ikea by Montera, part number 002.433.10, made in Greece. The ribbing allows the tubing to bend around curves, which is useful for holding many appliance cords together. Such coverings are cross-sectionally round. If placed over paint can rim (like shown in
Wikipedia defines extrusion as “a manufacturing process used to create long objects of a fixed cross-sectional profile”. Prior art extrusions have been made in many shapes and made of many materials. Such strips of extruded material that are of a size and shape range similar to the invention have been called wear strips and weatherstrip. Instead of substantially straight segments, some can be slightly curved by proprietary means.
Weather strip is a prior art extrusion. One such extrusion is part #78394 by M-D Building Products, Inc., Oklahoma City, Okla. 73118. That Vinyl Gasket weatherstrip (cross-sectional view) is redrawn in Prior Art
A prior art extruded shape is the wear strip by The Spiratec Company, made of ULTREX UHMW/PE (ultra high molecular weight polyethylene) HR-1224 for ¾″ half bar. Spiratec discloses curved wear strips and extrusions, as seen at www.spiratex.com/mistrip.htm How they curve such sections is proprietary. For an embodiment like a slit version of M-D weatherstrip to be curved, the curve would be substantially formed as a 20″ diameter. A tighter diameter curve of 5.5″ or 6″ (like what would fit on a 1 gallon can rim) is currently not known to be possible. The request for curved sections is low.
A prior art paint can has a circumferential/cylindrical wall (P.A.
The invention is a temporary cover for a paint can's rim, for protecting the rim from paint or liquid while pouring. The invention is substantially similar lengthwise/an extruded part. An embodiment's cross-section can be a substantially C-shaped portion plus a substantially narrow-tipped elongated, flat portion, for a total shape like a “b”, with the b's circular section being open on the front like a “c”. When the c-shaped cup is pressed/secured on to a paint can rim: the C-shape's open side faces substantially peripherally and/or downward and the tip of the elongated portion faces substantially upwardly. The invention can be made a size and shape to also be stored on a can's metal wire paint can handle (handle positioned inside of the C-shaped cup). Placed on the can handle, the cover can add handle cushioning for carrying the paint can.
ADVANTAGES OF THE INVENTIONThe cover invention wraps securely under the can rim's interior lip to keep paint off the rim while pouring. It very easy to apply and to remove. It can be inexpensively made by extrusion. It can be sold in a continuous perforated strip for many applications, as a packet of 8″ long pieces, or sold with each can of paint by storing it on the can handle. If sold with the paint can, it can be temporarily attached to a paint can handle like a sleeve (and torn off [perf-to-tear]), which will also provide a wider handle grip around the can's thin metal handle. This is of best advantage when a paint can is full, as that is when it is heaviest and a thin metal handle is most uncomfortable. It is inexpensive enough to be thrown away after a single use. It can also be easily washed: This is because it is flexible plastic, because it needs no intricate grooves to mate precisely with the can's rim to keep the paint out; and because it is placed on the can for only a minute (while pouring), meaning any paint on it can be easily rinsed off immediately. It can be reused, and will not get lost because it can be re-attached to the paint can's handle.
An extruded length can be made long enough to cover the entire diameter of a can's rim, allowing stirring of a full can of paint while keeping the rim clean. But less than a half-circle cover (like 8″) is mostly all that is needed, as completely full cans of paint are often just-purchased-items that have been professionally stirred before leaving the store.
The curvature of the can helps support the extruded cover from pivoting. Though the diameter of the rim portion of cans varies between manufacturers from close to 1 mm to 3.5 mm, the invention's C shape can be quite oversized, and even smaller in diameter than the rim portion, and still stay securely in place. Unlike Foam Pro's Can Spout (FPCS), the invention actually fits on a quart can easily. And since curving a straight extrusion around a can rim improves the hold where it is most needed (in the center where poured paint narrows to a stream when poured), the invention requires less force, therein less plastic to make to function as well as the heavy-duty FPCS.
PRIOR ART
PRIOR ART
PRIOR ART
- 1 a vertical dimension on a prior art paint can rim.
- 2 a vertical dimension on a prior art paint can rim.
- 3 a vertical dimension on a prior art paint can rim.
- 4 a horizontal dimension on a prior art paint can rim.
- 5 a horizontal dimension on a prior art paint can rim.
- 6 a horizontal dimension on a prior art paint can rim.
- 7 a horizontal dimension on a prior art paint can rim.
- 8 a prior art paint can rim
- 9A semi-circular lip cup
- 9B semi-circular lip cup
- 10A a wiping edge/tip
- 10B a wiping edge/tip
- 10C a wiping edge/tip
- 11 a prior art paint can upper exterior wall
- 14 paint/liquid•
- 15 thin tear area
- 16 prior art paint can handle
- 17 an embodiment of the invention
- 18 interior lip of a can rim
- 19 deep channel of a can rim
- 20 exterior lip of a can rim
- 21 prior art slit ribbed tubing
- 22 a vertical point of a prior art interior lip
- 23 a handle catch
- 24 a bottom portion
- 25 a top portion
- 26 a tip
- 27 a cup portion
- 31 a pre-edge/bend
- T wall thickness
- W a width
- H height
- CR a prior art can radius
- C bent end angle
As the embodiment is for temporary use (pouring), it is of benefit to store the strip before, and perhaps after use. This embodiment may be stored on the paint can's handle.
A strip embodiment is easily pulled off by drawing it towards the inside of the can. As the ends don't have paint on them (pouring is from the center of the strip), removal is also clean. The strip may be thrown away or washed (washing is easy, as paint is still wet).
Embodiments V, R, and RX are of shapes that are easily extruded, but would require an involved (expensive) tool if injection moulded. That is because they have extreme undercut areas.
A Prior Art 1 gallon paint can is what is shown in the drawings. However, the strip invention may be used on many containers, like quart-sized round metal cans and any container with an interior lip interior portion to grab on to.
The extruded strip may be formed as a closed b-shape with a thin section, like shown in
As there are so many extruded shapes, Applicant looked for possible prior art usable shapes.
Ribbed slit tubing for cord keeping, described in Background, can be forced around a paint can rim, as shown in
Embodiments V, P, and R are substantially b shaped, with the top narrow tip forcing poured paint to break from flowing under it and onto the can rim. But because paint tends to adhere to a surface, a few drops of paint might travel down the right side of these embodiments, possibly leading to a few paint drops in the rim groove. So an embodiment can include a pre-edge bend (shaped like the top of Apple Chancery font , versus Palantino b) to help break paint surface tension. This helps in two ways: Initially a can of paint is full, and the pouring angle is much more vertical, like in
The pre-edge bend straightens towards the center when the strip is curved around a can, but it still tips out at the center. The angle of the bend C is less than 90° so, as curved around the can rim, the tip does not bend underneath/fold against the straight portion at the center. Let's say a cover strip was placed around 180° of a can rim strip being about an 8″ length), and the paint is poured out at the medial center of that 180°, like at 90°. The strip's bent end (at the pre-edge) pushes the paint medially towards the center/90° place, creating a narrower stream of paint. Then the slight tip-out at the elongated portion's tip reduces surface adhesion of paint to the strip. So the bent end is for guiding liquid medially and breaking surface tension when the liquid is viscous like paint is.
An embodiment can be made of plastic, including but not limited to rubber, vinyl, polypropylene, PVC, polyurethane, and polyethylene.
Dimensions and DescriptionThe invention is a rim cover, for protecting a prior art paint can's metal rim from paint while pouring. Prior art rims have an interior lip. The cover has a substantially fixed cross-sectional profile and could substantially be made by extrusion. “Substantially” would include any end-cut variations making it easier to apply, like described with
The rim cover can further include the C-shaped portion having the C closed to an O shape by a tear portion. The C-shaped portion can be further described as having a wall thickness, The tear portion can be described as having a wall thickness. The tear portion wall thickness is substantially thinner than the C-shaped portion. When a part of the embodiment, the tear portion substantially closes the C-shape to form an O shape, wherein, a user can tear open the tear portion (like off of a metal paint can handle) to use the cover on the paint can rim.
The rim cover can have a profile substantially b-shaped, the b-shape can have a front circular portion such that the front circular portion is slit open on the front side forming a C-shape. The rim cover can be further described as having an elongated (often straight) portion substantially 0.5″ to 4″ tall. (Shorter than 0.5″ might allow paint to drip off onto the can rim. Taller than about 2″, and the cover looks obstructive when stored on a can handle, and longer than 4″ and the amount of plastic simply becomes wasteful.) The C-shaped cup portion can be substantially 0.04″ (1 mm) to 0.3″ (7.6 mm) interior diameter. The 1 mm size is big enough to grip onto a can's interior lip when that lip is closer to the 1 mm diameter than to the 3.5 mm diameter size, as it would squeeze-hold on the interior lip. A 0.3″ diameter c-shaped lip cup is small enough to grip because the lower portion of the c locks inside/under the interior lip, drawing a portion of the top of the c shape against the top of the interior lip. Of course, if the embodiment covered the can rim from interior to exterior lip, the C-shape would be larger.
The cover can be 3″ to 18″ long. Anything shorter than 3 or 4″ (used on a quart can) and a user might pour too fast and get a width of paint wider than the strip, therein get paint on the rim. An ≈17″ piece would circle around the entire rim of a gallon can, which might be useful for stirring paint. 18″ is about 1″ longer than that, so allows for overlap, like if the ends of the elongated portion were trimmed off or the embodiment were made of compressible rubber.
The rim cover invention can be described as a method of keeping paint off of a prior art metal paint can rim. The method comprises the steps of pressing a length of a flexible extrusion onto a can rim. Such that, a 6″ length of the extrusion is of a size and shape to secure onto a can rim enough to allow paint to pour from the can without detaching from the rim. [A 6″ length is a size that allows a user to cover about ⅓ of an ≈6″ diameter 1-gallon paint can]. And the 6″ extrusion piece is of a size and shape to allow a user to pour paint substantially without getting paint on the can rim or exterior wall of the can.
The invention is described as b shaped for simplicity. The opposite end of the invention is substantially a reflection of that shape, that is, d shaped. As the invention is substantially identical cross-sectionally, describing the extrusion as b shaped is identical to describing the item as d-shaped, or b shaped reflection.
Pressed onto that rim, the extrusion, cross-sectionally, is of a size and shape such that the C-shape's open side faces substantially peripherally/outward, a portion of one end of the C extends beneath the can rim's interior lip, or further into the can beneath or against the rim's deep channel interior side. The C's other end presses against the exterior surface of the interior lip of the prior art paint can, or the exterior surface of the exterior lip of the prior art paint can. And the point of the elongated portion faces substantially upward.
Cans with the metal rim and sealing groove detailed in Prior art specifications are named as “paint can” in claims to define the TYPE of can, not its contents. For claims, paint, stains, varnishes, and other liquids are all considered liquid contents. The less viscous liquids (like stains) may not clog the paint can rim groove, but without a rim cover, liquid will settle in rim groove after pouring, causing splatter when the lid is hammered back on.
ConclusionThe invention is a cover for pressing on to a paint can's metal rim to keep paint off the rim (and therein out of the rim's sealing groove) and exterior of a can. It is substantially similar lengthwise in that it can substantially be made by extrusion. It can be of a length to cover 90° to 360° around a prior art can rim. One embodiment's cross-section can be described as substantially b-shaped with an open slit or tear portion in the front circular section, resulting in a C-shape. When the invention is pressed on to a paint can rim, the C-shape's open side faces substantially distally and/or downward, a portion of the bottom end of the C extends beneath or against the can rim's interior lip; and the b's upper end (wiping point), extends upwardly from the can. The invention may be, of a size and shape to partially enclose around a metal wire paint can handle, if so attached for storing the part while not in use on the can rim.
The cover, in use, has opposite side ends. Positioned/pressed properly on a paint can, the lower portion of one end of the C extends inside of and beneath the can rim's interior lip, the upper portion of the C extends outside of the can's interior lip, and the elongated flat section extends upwardly and/or distally from the can rim.
The invention is a rim cover, for protecting a prior art paint can's rim from a can's liquid contents while pouring liquid from that can. “While pouring” can include the steps of tilting the paint can and ending the pour by setting the paint can down. The invention is also for storing on and padding a can handle. The cover is a size and shape to substantially be manufactured by extrusion. The cover can be more specifically defined as follows:
The rim cover has a length. The cover has a substantially fixed cross-sectional profile. The profile has a cup portion. The profile has a substantially elongated portion having a bottom portion and a top portion, and that bottom portion is fixedly attached to the cup portion. The profile cup portion is of a size and shape to be secured on to a cross-sectional portion of a prior art paint can rim. The cover's length is of a size, shape, and flexibility to curve least 90° around a portion of a paint can rim. [That is, it could be curve extruded, or straight and flexible enough to curve around the can rim]. When the cover is attached to a prior art paint can and liquid contents are poured from that can, the elongated portion is of a size and shape to keep a substantial portion of poured liquid off the exterior side of the can. [This would include a cup portion that covers the entire cross-section of a can rim.]
The cover can be more specifically defined as follows:
A prior art paint can rim has an interior lip. The cover's cup portion is of a size and shape to be secured onto such a paint can interior lip. The cover's elongated portion is of a size and shape to keep a substantial portion of liquid contents, during and after being poured from that can, off the rim of that can.
The cover can be more specifically defined as follows:
The rim cover can further include the cup portion being closed to an O shape by a tear portion. The closed tear portion is for securing the cover on a can handle prior to the cover used as a rim cover. The tear portion is tearable along its length if a user pulls the cover from a handle on a can.
The cover can be more specifically defined as follows:
The rim cover's profile is substantially b-shaped. The b shape's front circular portion is slit open on the front side forming said C-shape cup portion.
The cover can be more specifically defined as follows:
The rim cover where the elongated portion is substantially 0.5″ to 4″ tall [distance from its bottom-most portion to its top-most portion].
The rim cover where the cup portion has an interior diameter substantially 0.04″ to 0.3″. The rim cover where, in use, the cover is 3″ to 18″ long. [It can be sold in much longer lengths, and cut or torn to such length for use.] The rim cover where the elongated portion has a tip.
The cover can be more specifically defined as follows:
The rim cover, where the top portion further includes a bent portion. The bent portion (more specifically the exterior elbow or pre-edge) is bent for guiding liquid medially, and for helping break surface tension when viscous liquid is poured from a paint can.
The strip's bent end (at the elbow or pre-edge) pushes the paint medially, towards the center of a pour stream, creating a narrower stream of paint. Then the slight tip-out at the elongated portion's tip reduces surface adhesion of paint to the strip.
The invention can also be described as follows:
A method of keeping liquid off of the metal rim of a paint can, comprising the steps of pressing a length of a flexible extrusion onto a paint can rim. Such that the extrusion is of a size and shape to secure onto a rim enough to allow liquid contents to pour from that can without the extrusion detaching from that can rim and substantially without getting liquid on that can rim or that can's exterior wall. More specifically, the liquid poured can have the viscosity of paint.
Claims
1. A rim cover, for protecting a prior art paint can's rim from a can's liquid contents while pouring liquid from that can; and for storing on and padding a can handle;
- said cover being a size and shape to substantially be manufactured by extrusion.
2. The rim cover, according to claim 1, wherein
- said cover having a length;
- said cover having a substantially fixed cross-sectional profile;
- said profile having a cup portion;
- and said profile having a substantially elongated portion having a bottom portion, said elongated portion having a top portion; said bottom end fixedly attached to said cup portion;
- said profile cup portion being of a size and shape to be secured on to a cross-sectional portion of a prior art paint can rim;
- and said length being of a size, shape, and flexibility to curve least 90° around a portion of a paint can rim;
- such that, when said cover attached to a prior art paint can and liquid contents are poured from that can,
- said elongated portion being of a size and shape to keep a substantial portion of poured liquid off the exterior side of the can.
3. The rim cover, according to claim 2, wherein said prior art can rim having an interior lip;
- said cup portion being of a size and shape to be secured onto a paint can interior lip; and said elongated portion being of a size and shape to keep a substantial portion of liquid contents, during and after being poured from that can, off the rim of that can.
4. The rim cover, according to claim 3, further including said cup portion being closed to an O shape by a tear portion; closed said tear portion for securing said cover on a can handle prior to said cover use as a rim cover; and said tear portion being tearable along its length if a user pulls said cover from a handle on a can.
5. The rim cover, according to claim 3, wherein said profile being substantially b-shaped, wherein said b shape's front circular portion being slit open on the front side forming said cup portion.
6. The rim cover, according to claim 3, wherein said elongated portion being substantially 0.5″ to 4″ tall.
7. The rim cover, according to claim 3, wherein said cup portion having an interior diameter substantially 0.04″ to 0.3″.
8. The rim cover, according to claim 3, wherein, in use, said cover being 3″ to 18″ long.
9. The rim cover, according to claim 3, wherein said top portion further including a bent portion; said bent portion for guiding liquid medially and and for helping break surface tension when viscous liquid is poured from a paint can.
10. The rim cover, according to claim 1, wherein said length being flexible enough to substantially conform circumferentially around a paint can rim.
11. The rim cover, according to claim 1, wherein liquid contents being paint.
13. A method of keeping liquid off of the metal rim of a paint can, comprising the steps of pressing a length of a flexible extrusion onto a paint can rim; such that, said extrusion is of a size and shape to secure onto a rim enough to allow liquid contents to pour from that can without said extrusion detaching from that can rim and substantially without getting liquid on that can rim or that can's exterior wall.
14. The method of claim 13, wherein poured liquid substantially having the viscosity of paint.
Type: Application
Filed: Dec 27, 2007
Publication Date: Jul 17, 2008
Inventor: Jean Victoria Rattmann (Everett, WA)
Application Number: 12/005,261
International Classification: B65D 1/40 (20060101);