Patents Assigned to National Polymers Inc.
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Patent number: 5871114Abstract: The invention provides a new method of recycling recyclable waste products suited for household use wherein the container is a plastic injection-molded container having a monolithic body formed from plastic resin and includes a pair of integral compartments. Fibrous waste is placed in one compartment and nonfibrous waste comprising rigid and semirigid container, e.g., glass jars, metal beverage and food cans, plastic bottles and glass bottles are placed in the other compartment so as to presort the recyclable articles. The container is then taken to a collection point where the presorted products can be picked up by a recycling collection contractor and maintained separate from one another during transport to a recycling center.Type: GrantFiled: November 15, 1994Date of Patent: February 16, 1999Assignee: National Polymers Inc.Inventors: Dennis C. Anderson, Brett A. Anderson, Harold T. Hjermstad, II
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Patent number: 5783223Abstract: A plastic injection molding machine is provided which includes a filter for the continuous removal of foreign particulate contaminants from molten resin. The molding machine has a filter assembly with a passage for molten plastic resin and also includes a movable filter body containing a plurality, e.g, two, removable filters movably supported within the filter assembly for transporting the filter element between at least a pair of alternate positions, including an operative position within the passage containing the molten plastic resin and a non-aligned inoperative position. The filter body has a bored opening containing the filter and an accumulation chamber for storing the foreign material upstream of the filter.Type: GrantFiled: August 27, 1996Date of Patent: July 21, 1998Assignee: National Polymers Inc.Inventor: Dennis C. Anderson
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Patent number: 5564855Abstract: A stackable height adjustment ring for supporting a manhole cover frame upon a concrete manhole shaft liner has a ring body that is formed from plastic resin, e.g., scrap plastic. The ring includes inner and outer radially spaced apart side walls and optionally a top wall. Brace arms which are integral with the walls preferably extend radially between the walls for holding them together. The rings have alignment members, e.g., an inner wall of the ring can have an upwardly facing shoulder upon its upper edge and the outer wall, a downwardly facing shoulder on its lower edge. An upwardly extending cylindrical collar at the top of the outer ring fits the downwardly facing shoulder of an adjacent ring. There is also a downwardly extending collar at the lower edge of the inner ring to fit on the upwardly facing shoulder of a similar inner ring.Type: GrantFiled: May 31, 1994Date of Patent: October 15, 1996Assignee: National Polymers IncInventor: Dennis C. Anderson
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Patent number: 5558254Abstract: A combined waste recycling and disposal method utilizes a first container or bin having at least one supporting wheel for supporting the bin from the ground. Waste of a first category, e.g., garbage, is stored in the bin. A second container is provided for waste of a second category, specifically, recyclable waste. Waste of the second category is placed in and stored in the second container. The second container is supported on the first container and thereafter the first container is transferred to a pickup point while loaded with both recyclable and non-recyclable waste by moving the first container while it is supported by the wheels. The second container is then removed from the first container and the waste from both containers is transferred to separate compartments of a pickup vehicle, e.g., a truck for hauling the waste to a recycling and a disposal location. The second container is a rigid receptacle with two or more side-by-side compartments for recyclable waste.Type: GrantFiled: February 2, 1995Date of Patent: September 24, 1996Assignee: National Polymers Inc.Inventors: Dennis C. Anderson, Harold T. Hjermstad, II
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Patent number: 5390813Abstract: A recycling container formed from plastic resin includes a pair of side-by-side upwardly opening integral compartments having a hollow partition between them. Each of the compartments has upright side walls and an upwardly opening wide mouth with a peripheral or top edge for forming the rim of the container. The upper edge of two adjacent side walls that make up the sides of the partition are joined together by a horizontally disposed connecting panel located in the plane of the container rim for defining the upper margin of the hollow partition between the compartments. The center portion of this connecting panel is a carrying handle. The invention also provides a new method of recycling recyclable waste products suited for household use wherein the container is a plastic injection-molded container having a monolithic body formed from plastic resin and includes a pair of integral compartments.Type: GrantFiled: September 29, 1993Date of Patent: February 21, 1995Assignee: National Polymers Inc.Inventors: Dennis C. Anderson, Brett A. Anderson, Harold T. Hjermstad, II
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Patent number: 5282316Abstract: The invention provides a hand held razor-containing cutting device formed from two separable halves that are connected together during use along a centrally located longitudinally extending parting line. The two halves of the tool are held in contact with one another by means of frictional connecting elements that allow the halves of the tool to snap together for use. A pair of adjacent disassembly tabs are provided. One such tab is located on each half of the tool to facilitate separating the halves of the tool by prying the halves apart, usually with a screwdriver or similar tool that is placed between the tabs and then twisted to pry the tabs away from one another for separating the two portions of the cutting device so that the razor blade can be removed and replaced when required. The frictional connecting elements comprise C-shaped cooperating retaining studs that extend from one half of the tool and during assembly snap into openings provided in the other half.Type: GrantFiled: January 4, 1993Date of Patent: February 1, 1994Assignee: National Polymers Inc.Inventor: Dennis C. Anderson
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Patent number: 4483098Abstract: A plant stake and clasp is provided in which one or more clasps molded from plastic resin are provided at the top of the stake, each clasp including a pair of cooperating resilient arms and a mouth through which the stem of the plant can be introduced.Type: GrantFiled: September 28, 1982Date of Patent: November 20, 1984Assignee: National Polymers Inc.Inventor: Dennis C. Anderson
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Patent number: 4446652Abstract: A unitary, i.e., one-piece, flower pot is described having a water reservoir at the bottom thereof defined by a bottom wall and a soil support plate positioned above the bottom wall and being hinged to the pot along a hinge line located above the bottom wall. The soil support plate is hinged to the pot by means of the plastic resin from which the pot is formed. Through this means, the soil support plate and pot are all formed integrally from the same material with the support plate at a vertical position in alignment with the axis of the pot so that it can be removed from the mold and then swung downwardly about the hinge to a horizontal position when soil is to be placed in the pot.Type: GrantFiled: September 28, 1982Date of Patent: May 8, 1984Assignee: National Polymers, Inc.Inventor: Dennis C. Anderson
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Patent number: 4442629Abstract: A combination flower pot and tray is described which can be quickly assembled without visually orienting the tray with respect to the pot. It includes a lug located at the center of the tray and extending upwardly therefrom and adapted to snap fit into an opening in the bottom of the pot. Three provisions are made for helping to orient or locate the tray with respect to the pot including side walls on the tray which conform generally to adjacent side walls on the pot, a cylindrical skirt on the bottom of the pot which fits telescopically into a mating wall between the side and bottom walls of the tray and a blunt conical point at the top of the lug to help guide it into the opening.Type: GrantFiled: July 6, 1982Date of Patent: April 17, 1984Assignee: National Polymers Inc.Inventor: Dennis C. Anderson
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Patent number: 4057931Abstract: A molded stackable flower pot provided with an annular rim adjacent the bottom thereof, which supports the pot so that the bottom surface is spaced upwardly from a surface supporting the pot. The rim has a plurality of apertures defined therein positioned so that the apertures will received peripheral upper edge portions of two other similar flower pots so that pots can be supported in a stacked and interlocked relationship to each other.Type: GrantFiled: November 20, 1974Date of Patent: November 15, 1977Assignee: National Polymers, Inc.Inventors: Kenneth R. Stutelberg, Dennis C. Anderson
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Patent number: D503317Type: GrantFiled: February 24, 2004Date of Patent: March 29, 2005Assignee: National Polymers Inc.Inventor: Dennis C. Anderson
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Patent number: D243031Type: GrantFiled: June 2, 1975Date of Patent: January 11, 1977Assignee: National Polymers, Inc.Inventor: Dennis C. Anderson
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Patent number: D248935Type: GrantFiled: March 26, 1976Date of Patent: August 15, 1978Assignee: National Polymers, Inc.Inventors: Kenneth R. Stutelberg, Dennis C. Anderson