Container

Information

  • Patent Grant
  • 7032756
  • Patent Number
    7,032,756
  • Date Filed
    Tuesday, April 11, 2000
    24 years ago
  • Date Issued
    Tuesday, April 25, 2006
    18 years ago
  • Inventors
  • Examiners
    • Newhouse; Nathan J.
    • Eloshway; Niki M.
    Agents
    • Schwegman, Lundberg, Woessner & Kluth, P.A.
Abstract
The present invention relates to containers, and more specifically, to plastic containers. The containers described herein may be applied to any use, but they are particularly useful for storing paint.
Description
BACKGROUND OF THE INVENTION

The present invention relates to containers, and more specifically, to plastic containers. The containers described herein may be applied to any use, but they are particularly useful for storing paint, varnish, stain and the like. The containers of the invention will be described in connection with the use of storing paint with the understanding that the container has other usages, such as storing food or other contents.


Paint is conventionally stored and sold in metal cans which have an upper edge with a groove in which an annular edge of a metal cover is secured by a press fit. The cover is typically removed by prying an edge of the cover upwardly out of engagement with the can edge so that the stored paint can be used. The cover is usually pried upwardly with a screwdriver or other pointed device. The cover can be resecured onto the can by press fit, typically by striking the lid with a solid object, such as a hammer. Because the paint frequently fills the groove of the can, striking the lid with a hammer oftentimes causes the paint to spray outwards. Further, any paint that remains in the groove prevents a tight securing of the cover.


Paint has generally been stored in round metal containers because the density and weight of paint has been too great for polymeric-based containers to contain and because of a reactivity of the paint with polymeric containers. Round-shaped cans have been used to store paint because it has been difficult to fabricate metal containers with symmetries that are not round.


Notwithstanding the widespread use of round metal cans as containers for paint, the use of those cans has been expensive and wasteful with respect to storage and transport. For example, round metal cans cannot be positioned efficiently. Further, round metal cans add significant weight to the paint product. Round metal cans are typically difficult to open and close, and round metal cans are difficult to carry. Round metal cans are also easily be dented. Moreover, problems are associated with reclosing the round metal can after use since paint has most likely filled the channel groove portion of the can which receives the standard lid, resulting in spray, spillage and disrupted resealing.


Efforts have been made to utilize paint containers manufactured from materials other than paint. For example, plastic paint containers are reported in U.S. Pat. Nos. 3,938,686; 4,453,647; 4,530,442; 4,548,332; 4,619,373; 4,655,363; 5,303,839; and 5,975,346. However, a need still exists for a paint container that can be easily and efficiently transported, stored, positioned, opened, closed and carried by hand. In securing the cover in position, it is important that the cover is both securely attached and readily removed when desired. Further, the container should be designed not only to store the paint, but also to prevent undesired escape of the paint, to prevent the ingress of dust, moisture or other materials into the container, to allow opening without special tools and to allow tight resealing.


SUMMARY OF THE INVENTION

One embodiment of the present invention includes a polymeric container. The polymeric container comprises a main body. The main body includes a neck portion, a bottom portion and a handle portion. The bottom portion defines a lug. One other embodiment further includes a lid positionable over the neck. The lid defines indentations capable of receiving lugs from another polymeric container. In another embodiment, the main body defines an indentation capable of receiving one or more lugs.


Another embodiment includes a method for stacking containers. The method comprises providing a first container comprising a main body with a bottom portion. The bottom portion defines one or more lugs. A second container is also provided. The second container comprises a main body that defines an indentation and a bottom portion. The bottom portion defines one or more lugs. The first container is stacked on the second container so that the lug of the first container is seated within the indentation of the second container.


One other embodiment of the present invention includes a method for stacking containers. The method comprises providing a first container with a main body that includes a bottom portion. The bottom portion defines one or more lugs. The method also comprises providing a second container and a lid positioned on the container. The lid defines an indentation. The first container is stacked on the second container so that the lug of the first container is seated within the indentation on the lid.





DESCRIPTION OF THE DRAWINGS


FIG. 1 is a perspective view of one embodiment of the container of the present invention.



FIG. 2 is a top plan view of a plurality of the containers positioned for transport or storage.



FIG. 3 is a top plan view of one embodiment of the container of the present invention.



FIG. 4 is a top plan view of one embodiment of the container with an indentation for lug receipt in a lid applied to the container.



FIG. 5
a is a top plan view of another embodiment of the bottom portion of the container of the present invention with an annular lug in a main body of the container.



FIG. 5
b is a top plan view of one other embodiment of the bottom portion of the container of the present invention with a plurality of discrete lugs in the main body of the container.



FIG. 5
c is a top plan view of another embodiment of the bottom portion of the container of the present invention with a single centrally positioned lug.



FIG. 6
a is a tp plan view of a top portion of one embodiment of the container of the present invention wherein the main body defines an annular indentation.



FIG. 6
b is a top plan view of a top portion of one embodiment of the container of the present invention wherein the main body defines a plurality of discrete indentations.



FIG. 6
c is a top plan view of one embodiment of a container and lid of the present invention wherein an indentation is defined by the lid.





DETAILED DESCRIPTION

One embodiment of the container of the present invention, illustrated generally at 10 in FIG. 1, includes a main body 12 with a generally parallelpiped shape and a lid 14 attachable to the main body 12 at a neck 24. The main body 12 comprises the neck 24, a handle 16, and a bottom portion 18 with an annular lug 20 and a central indentation 22. Although the container depicted represents a paint volume content of approximately one gallon, the container is readily manufactured in different sizes. The container of the present invention is not limited to any one volume or dimension.


The container of the present invention includes a number of features that render the container more easily and efficiently stored and transported than conventional containers, such as round metal paint containers. One of these features is the symmetry of the main body. The main body of the container of the present invention is a parallelpiped that permits the container to be transported with a minimum of free space. Straight sidewalls of adjacent containers are alignable with each other, as is shown at 3 in FIG. 2. The container of the present invention also includes a number of features that render the container more easily and efficiently opened and closed than conventional containers.


The container of the present invention 10 includes a unitary handle 16 that forms indentations for fingers 26 that enable a user to more easily carry the container 10. One embodiment of the container 10 includes an annular lug 20 that permits more stable stacking of the container 10. In particular, the lug 20 is insertable in an annular groove 28 defined within one embodiment of the lid 14.


The shape of the lug 20 can be varied for other container embodiments. For example, the lug may be a continuous annular lug, such as is shown at 20 in FIG. 5a or may be a discrete lug such as is shown at 50 in FIG. 5b. The lug may also be a single lug 52 positioned in a central region of the bottom of the container, as shown in FIG. 5c. Although four lugs are shown, in FIG. 5b, it is understood that more or fewer lugs are suitable for use. The lugs 20, 50, and 52 have shapes ranging from rectangular to ovoid.


The shape of the groove 28 defined is of a shape that permits the stacking of the containers and that permits receipt of the lug 20. This shape is an annular shape for receipt of annular lug 20 as shown at 60 in FIG. 6a. The groove 60 is defined by the container main body. The shape of the groove or indentation is discrete, as shown at 62 in FIG. 6b, for receipt of discrete lugs 50. The discrete indentations 62 are also positioned within the main body of the container. In one other embodiment shown in FIG. 6c, the indentation 64 is in a lid 62. The indentation receives the lug 52.


The unitary handle 16 also creates a modular shape for the container 10 that renders the container more efficient to store. The handle 16 may be hollow or solid. The handle 16 is, for some embodiments, integral with the main body.


One lid embodiment is illustrated generally at 14 in FIG. 3. The lid 14 comprises two turning mechanisms, a central mechanism 32 and indentations 34. The central mechanism comprises a unitary band 36 that allows the lid 14 to be moved in clockwise and a counter clockwise directions. The band 36 has an elevation that permits fingers of a user to be placed below the band 36 to turn the lid 14. The band forms indentations 40 for fingers that enable the user to more easily carry, open and close the container. The indentations 34 are positioned and sized to enable a user to grasp the lid 14 and to turn the lid 14 clockwise and counter clockwise. The lid 14 of the present invention is configured to enable individuals with “stiff” fingers to use and to turn with relative ease. The lid 14 is sealed to the container 12 by an o-ring 38. The lid 14 defines threading 42, and the neck 24 defines threading 44, so that the threadings 42 and 44 are capable of interacting to attach the lid 14 to the main body 12.


The container of the present invention is fabricated from a polymeric material such as polypropylene with methods well known to the art worker. The handle is for some embodiments filled and for other embodiments hollow.


For some embodiments, the container is lined with a material such as a heat sealable thermoplastic or laminate which acts to contain a material such as paint and, along with the o-ring seal, to prevent air oxidation. Suitable liner materials include polyester, polyvinylidene chloride, polyethylene and the like. Other suitable liner materials include cellulosics, polycarbonates, polypropylene, polyester or metallized plastic sheet material. One liner material is a plastic laminate that includes nylon, polyvinylidene chloride, polyethylene and a 0.003 to 0.001 inch aluminum foil. The aluminum foil is sandwiched between layers of the plastic material.


In one embodiment, an aluminum foil barrier is laminated to an outer polymeric shell by a thermosealing polycoat. The polycoat thermally bonds the foil to the polymeric material. One polycoat comprises a polyethylene extrusion that is coated to the polymeric shell.


The container of the present invention is usable for storing and transporting a material such as paint. The shape of the container permits space-efficient transport. The shape of the container as well as the ergonomic features of the lid and handle render the container easy and safe for an individual to carry.


While preferred embodiments of the invention are described herein, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the present invention that do not depart from the spirit and scope of the present invention. All such modifications and variations are intended to be included within the scope of the invention, as defined by the following claims.

Claims
  • 1. An apparatus comprising: a first container comprising a unitary main body with a threaded neck portion and a sidewall, the unitary main body also comprising a handle portion having opposite ends each of which extend from the main body, the handle portion comprising a molded handle wherein the molded handle and the main body define an opening for receiving fingers of a human hand, the handle portion extending along the side of the unitary main body wherein the handle portion and the unitary main body define a square or rectangular perimeter of the first container;the unitary main body further comprising a bottom portion with a recess defined centrally in the bottom portion, the recess defined by a vertical surface free of an interlocking extension and a horizontal surface extending inwardly from the vertical surface, and a lid, the lid attachable to the threaded neck portion of the unitary main body, wherein the threaded neck portion is disposed centrally with respect to the main body;the bottom portion recess of the first container is adapted to align the first container with a lid of another container;the lid of the first container including a planar top surface adapted to support a second container stacked thereon, and a skirt extending from the perimeter of the planar top surface, the skirt having an outer surface which is free of interlocking extensions;the second container comprising a unitary main body with a threaded neck portion and a sidewall, the unitary main body also comprising a handle portion having opposite ends each of which extend from the main body, the handle portion comprising a molded handle wherein the molded handle and the main body define an opening for receiving fingers of a human hand, the handle portion extending along the side of the unitary main body wherein the handle portion and the unitary main body define a square or rectangular perimeter for the paint container; the unitary main body of the second container further comprising a bottom portion with a recess defined centrally in the bottom portion, and a lid, the lid attachable to the threaded neck portion of the unitary main body, wherein the threaded neck portion is disposed centrally with respect to the main body;the recess of the second container is defined by a vertical surface adapted to align the second container with the lid of the first container, and a horizontal surface extending inwardly from the vertical surface, the vertical surface of the second container being free of interlocking extensions;the lid of the second container including a top surface adapted to support another container stacked thereon;wherein the horizontal surface of the second container comprises a substantial area of the bottom portion of the second container and wherein the horizontal surface of the bottom portion of the second container faces the planar top surface of the lid of the first container and wherein the second container rests on the lid of the first container and the lid of the first container supports substantially all of the weight of the second container in stable stacked arrangement, and further wherein the horizontal surface of the bottom portion of the second container is parallel to and proximate to the planar top surface of the lid of the first container; andpaint that is contained in the first and second containers.
  • 2. The apparatus of claim 1 wherein the each lid includes an o-ring positioned to seal the lid to the main body.
  • 3. The apparatus of claim 2 wherein the each lid defines one or more discrete indentations.
  • 4. The apparatus of claim 1 wherein the each lid comprises a unitary band.
  • 5. The apparatus of claim 4 wherein the each unitary band defines indentations.
  • 6. The apparatus of claim 1 wherein the each lid defines indentations.
  • 7. The apparatus of claim 6 wherein the each handle is hollow.
  • 8. The apparatus of claim 6 wherein the each handle is plastic-filled.
  • 9. The apparatus of claim 8 wherein the each container is lined.
  • 10. The apparatus of claim 1 wherein the second container is adapted so that the sidewall of the second container contacts the handle of the first container when positioned adjacent thereto and the perimeter of the first and second containers in contact is rectangular.
  • 11. The apparatus of claim 1 wherein the each main body comprises a polymer.
US Referenced Citations (174)
Number Name Date Kind
D34895 McFaddin Aug 1901 S
2194486 Straub Mar 1940 A
2324338 Tripp Jul 1943 A
2659519 Allen Nov 1953 A
2707574 Klebenow May 1955 A
2743844 Livingstone May 1956 A
2763402 Livingstone Sep 1956 A
2817465 Gray Dec 1957 A
2851196 Livingstone Sep 1958 A
3000527 Jennings et al. Sep 1961 A
D192886 Kaplan May 1962 S
D206407 Sharp Dec 1966 S
3310088 Hildebrandt et al. Mar 1967 A
D207466 Phillips Apr 1967 S
3313438 Piker Apr 1967 A
3387749 Godshalk et al. Jun 1968 A
D211928 Burnett Aug 1968 S
D217231 Pashman Apr 1970 S
D221515 Betka Aug 1971 S
3612595 Updegraff et al. Oct 1971 A
3620410 Griese Nov 1971 A
3625386 Schaefer Dec 1971 A
3659758 Waterman May 1972 A
3695488 Olsson Oct 1972 A
3727792 Levin Apr 1973 A
3744671 Saunders Jul 1973 A
3807679 Burke et al. Apr 1974 A
3899107 Gaal Aug 1975 A
3927797 Flider Dec 1975 A
3938686 Milligan et al. Feb 1976 A
3945527 Pylant Mar 1976 A
4014465 Ritter Mar 1977 A
4022352 Pehr May 1977 A
4061242 Donlon Dec 1977 A
4078700 Hidding Mar 1978 A
4128189 Baxter Dec 1978 A
D250806 Gutkowski Jan 1979 S
4150763 Simpson Apr 1979 A
4203537 McAlister May 1980 A
4225064 Westcott Sep 1980 A
4240568 Pool Dec 1980 A
D258563 Romagnoli Mar 1981 S
D261362 Epperson Oct 1981 S
4312459 Leach Jan 1982 A
4386701 Galer Jun 1983 A
4387828 Yates Jun 1983 A
4387922 Geisinger Jun 1983 A
D269948 Janssen Aug 1983 S
4399926 Eidels-Dubovoy Aug 1983 A
4453647 Neat Jun 1984 A
4457458 Heinol Jul 1984 A
4458819 Geiger Jul 1984 A
D276890 Hancher Dec 1984 S
4491234 Wilcock Jan 1985 A
4494674 Roof Jan 1985 A
4520936 Lyons Jun 1985 A
D279763 Hestehave et al. Jul 1985 S
4530442 Vogel, Jr. Jul 1985 A
4541529 Hestehave et al. Sep 1985 A
4548332 Neat Oct 1985 A
D281579 Drummond et al. Dec 1985 S
4583666 Buck Apr 1986 A
4619373 Galer Oct 1986 A
D289377 Ashby et al. Apr 1987 S
4655363 Neat Apr 1987 A
4664295 Iida May 1987 A
4671421 Reiber et al. Jun 1987 A
4706829 Li Nov 1987 A
4735313 Schoenberg Apr 1988 A
4736874 Durant Apr 1988 A
D296873 Dent et al. Jul 1988 S
4771501 Leiter Sep 1988 A
4773560 Kittscher Sep 1988 A
4805793 Brandt et al. Feb 1989 A
4830234 Odet May 1989 A
D304014 O'Connell Oct 1989 S
D305407 Gonda Jan 1990 S
4893723 Seabolt Jan 1990 A
4899885 Van Koert Feb 1990 A
4911319 DeJean Mar 1990 A
D307389 Larson Apr 1990 S
4917268 Campbell et al. Apr 1990 A
4927046 Armstrong May 1990 A
4928860 Knight May 1990 A
D309260 Conrad Jul 1990 S
4941815 Julian Jul 1990 A
4949884 Dahl Aug 1990 A
4974749 Mon Dec 1990 A
D313350 Beaver Jan 1991 S
4984714 Sledge Jan 1991 A
5020692 Darr Jun 1991 A
D318228 Schlesselman Jul 1991 S
D320345 Hamly et al. Oct 1991 S
D321624 Fiore et al. Nov 1991 S
5064101 Richter et al. Nov 1991 A
D323115 Kelsey Jan 1992 S
5092474 Leigner Mar 1992 A
5092478 La Pierre Mar 1992 A
5105858 Levinson Apr 1992 A
5108009 Davidson et al. Apr 1992 A
D332747 Darr et al. Jan 1993 S
5188249 Cargile Feb 1993 A
5207356 Krall May 1993 A
D336434 Binder Jun 1993 S
D338407 Lynd Aug 1993 S
5234130 Benioff et al. Aug 1993 A
5269438 Kelsey Dec 1993 A
5299710 Welsch et al. Apr 1994 A
5303839 Blumenschein Apr 1994 A
5322662 Benioff et al. Jun 1994 A
D349651 Saffer Aug 1994 S
D352459 Pollacco Nov 1994 S
5377858 Morris Jan 1995 A
5383558 Wilkinson et al. Jan 1995 A
D355366 Bainton Feb 1995 S
5390805 Bilani et al. Feb 1995 A
5401200 Ellis Mar 1995 A
5409128 Mitchell Apr 1995 A
D358333 Stockwell et al. May 1995 S
5431306 Reid Jul 1995 A
D360830 Hestehave et al. Aug 1995 S
D362180 Haines Sep 1995 S
5492240 Vilutis Feb 1996 A
D370153 Chaney et al. May 1996 S
D370850 Beaver Jun 1996 S
D372197 Gough Jul 1996 S
D374178 Valls et al. Oct 1996 S
5566861 Serano Oct 1996 A
5566862 Haffner et al. Oct 1996 A
5577626 Henkel et al. Nov 1996 A
D376761 Lathrop et al. Dec 1996 S
5603787 Reid Feb 1997 A
D379302 Rodman May 1997 S
5626258 Maiorino May 1997 A
5669526 Keyfauver Sep 1997 A
5678684 Wright Oct 1997 A
5699925 Petruzzi Dec 1997 A
D389067 Lown Jan 1998 S
5704502 Greenfield Jan 1998 A
D392188 Darr et al. Mar 1998 S
5743425 Ellis Apr 1998 A
5775483 Lown et al. Jul 1998 A
5794803 Sprick Aug 1998 A
RE35933 Scholl Oct 1998 E
5823345 Nask et al. Oct 1998 A
D401154 Robinson Nov 1998 S
D403243 Takeuchi et al. Dec 1998 S
5850953 Dallas Dec 1998 A
5855299 Arnold et al. Jan 1999 A
5855304 Dean et al. Jan 1999 A
5860559 Wang Jan 1999 A
5868283 Wilson et al. Feb 1999 A
5875942 Ohmi et al. Mar 1999 A
5893489 Giarrante Apr 1999 A
5896993 Nask et al. Apr 1999 A
5908136 Mrak Jun 1999 A
5941427 Speer Aug 1999 A
5964383 Cargile Oct 1999 A
5967378 Arispe Oct 1999 A
5971201 Daw Oct 1999 A
5975346 Imperato et al. Nov 1999 A
6029858 Srokose et al. Feb 2000 A
6029864 Nilsson et al. Feb 2000 A
D422920 Tapp et al. Apr 2000 S
6059153 Olson et al. May 2000 A
6068161 Soehnlen et al. May 2000 A
6085949 Zimny et al. Jul 2000 A
D428817 Olson et al. Aug 2000 S
6123231 Geisinger Sep 2000 A
6209762 Haffner et al. Apr 2001 B1
6223945 Giblin et al. May 2001 B1
D449535 Geisinger et al. Oct 2001 S
6412661 Hannah, Sr. Jul 2002 B1
6530500 Bravo et al. Mar 2003 B1
Related Publications (1)
Number Date Country
20030188986 A1 Oct 2003 US