| Patent Number |
Title Of Patent |
Date Issued |
| RE32902 |
Carton with improved opening structure |
April 11, 1989 |
| Tear strip structure for the relatively narrow side wall of a relatively flat rectangular paperboard carton. The side wall is defined by an inner folded closure flap and an outer flap folded thereover. The outer flap has a line of weakness extending along its length, between and parallel |
| RE32270 |
Polyester coated paperboard for forming food containers and process for producing the same |
October 28, 1986 |
| A coated paperboard product and a process for producing the same which includes corona discharge treatment of a paperboard surface and subsequent extrusion of molten polyester thereon. The resulting product has a very high degree of adhesion between the paperboard and polyester layers, a |
| D288150 |
Embossed paper toweling |
February 10, 1987 |
|
| 5102501 |
Multiple layer fibrous web products of enhanced bulk and method of manufacturing same |
April 7, 1992 |
| Absorbent paper products, such as towels, absorbent wipes, toilet tissue, facial tissue and the like fibrous webs of relatively high bulk, are produced by a method comprising the steps of treating hydrophilic cellulosie fibers to impart kinks, curls, bends, twists, to the fibers; dis |
| 5052552 |
Foldable carrier for a plurality of containers |
October 1, 1991 |
| A carton structure erectable by folding from a substantially flat blank includes two side panels, a bottom panel, two top panels, a center divider panel and two end panels, each extending from the bottom panel. Each end panel has slot means for engaging the center divider panel when the |
| 4913773 |
Method of manufacture of paperboard |
April 3, 1990 |
| A method of producing a multi-ply paperboard comprising at least one ply high bulk fibers sandwiched between at least two plies of conventional papermaking fibers. In a preferred embodiment, high bulk fibers characterized by twists, kinks and curls are produced by mechanical deformat |
| 4902552 |
Reinforced dry laid fibrous webs |
February 20, 1990 |
| A method and apparatus for making reinforced, dry laid fibrous web. A first layer of dry cellulosic fibers is laid on a forming wire. A plurality of yarns maintained under tension are applied to the first layer of dry cellulosic fibers. The tension on the bulked yarns is released upon |
| 4873273 |
Epoxide coating composition |
October 10, 1989 |
| A thermosetting resin composition particularly suitable for surface coatings, including metals, paper and paperboard, and especially those papers subsequently converted into shaped paperboard products, e.g. paper plates and folded cartons, with a high gloss, water and oil resistant s |
| 4869782 |
Method of producing high bulking anfractuous cellulosic fiber using anhydrous liquid ammonia |
September 26, 1989 |
| Anfractuous cellulose fibers exhibiting exceptional high bulking properties are produced by treatment of dry hammermilled wood cellulose fibers with anhydrous liquid ammonia at substantially atmospheric pressure. Fibrous webs of enhanced bulk are produced by preparing an aqueous furnish |
| 4861958 |
Packaging container for microwave popcorn popping |
August 29, 1989 |
| A container (2) for heating popcorn or other types of particulate food items in a microwave oven formed from a single blank having a bottom panel (4) coated with a microwave interactive material (26) adding heat to particulate food items such as popcorn kernels and configured so that eac |
| 4849054 |
High bulk, embossed fiber sheet material and apparatus and method of manufacturing the same |
July 18, 1989 |
| A bulky, embossed, fibrous web material having a basis weight in the range of 5 to 50 lbs./ream and geometric means tensile strength (TS) (kg/3" width), apparent bulk (AB) (cal. pts./lb. ream), and oil holding capacity (OH) (ml/gm fiber) substantially satisfying, in absolute values, the |
| 4832676 |
Method and apparatus for forming paperboard containers |
May 23, 1989 |
| A method and apparatus for forming a container from a sheet of blank material, whereby a segmented male die member first forms the bottom and then the sidewall and rim of the container prior to the formation of the lip portion of the container while the blank is being restrained in a |
| 4819862 |
Disposable plate lid and food container including same |
April 11, 1989 |
| A foldable, resilient plate lid of paperboard or the like, having a central panel surrounded by four side panels glued together at overlapping end flap portions to form a continuous skirt which, when open, flares obliquely downwardly from the central panel to encompass the rim of a d |
| 4806190 |
Method and apparatus for forming reinforced dry laid fibrous webs |
February 21, 1989 |
| A method and apparatus for making reinforced, dry laid fibrous web. A first layer of dry cellulosic fibers is laid on a forming wire. A plurality of yarns maintained under tension are applied to the first layer of dry cellulosic fibers. The tension on the bulked yarns is released upon |
| 4803032 |
Method of spot embossing a fibrous sheet |
February 7, 1989 |
| A method of embossing a sheet of non-woven fibrous web, e.g. toilet tissue, with a series of identical boss elements arranged in a uniform pattern in a manner to avoid nesting of the embossments and resulting non-uniform product rolls when the sheet is rolled onto a mandrel. The embossme |
| 4764253 |
Method for controlling feed of foamed fiber slurries |
August 16, 1988 |
| In a papermaking or like operation wherein fibers are supplied to a headbox in a foamed furnish, a method of controlling furnish flow including the steps of controllably advancing the furnish along a flow path to the headbox, measuring the volume flow rate of furnish through a fixed |
| 4746477 |
Production of partially foamed extruded plastic products |
May 24, 1988 |
| In a method of extruding a plastic product having a foamed core layer and at least one unfoamed skin layer by forcing contiguous flows of a resin through a coextrusion die, one of the flows containing a blowing agent and a nucleating agent for forming the core layer and the second of the |
| 4742203 |
Package assembly and method for storing and microwave heating of food |
May 3, 1988 |
| A packaged arrangement (1) contains a tray (4) which is convertible into a heating stand by inversion thereof. The walls of the tray are of a material that is transparent to microwave energy, but a support wall (10) which forms a bottom of the tray and top of the stand is provided with a |
| 4740392 |
Epoxide coating composition and method of forming a coating on a substrate |
April 26, 1988 |
| A thermosetting resin composition particularly suitable for surface coatings, especially paper and paperboard, and especially those subsequently converted into shaped paperboard products, e.g. paper plates and folded cartons, with a high gloss, water and oil resistant surface coating |
| 4740163 |
Channel opening feature for cartons |
April 26, 1988 |
| A container is constructed from a paperboard sheet having a channel including a surface area of the paperboard sheet from which paperboard material has been removed and a tear strip at least partially bounded by the channel for opening the container by separation of the paperboard sh |
| 4735682 |
Method for recovery of cellulosic fibers containing latex solids from latex bonded broke |
April 5, 1988 |
| Cellulosic fibers containing latex solids are recovered from latex bonded broke by agitation of the broke in an aqueous alkaline solution having an alkali metal hydroxide concentration of 0.5 to 1.5 mol percent for a period of time in the range of ten minutes to four hours. The resulting |
| 4706873 |
Disposable cup with sidewall pop-out |
November 17, 1987 |
| A paper cup or similar disposable thin-walled fluid container with a removable or pop-out portion in its sidewall containing redemption information is disclosed wherein the pop-out portion is formed by a series of surrounding perforations in the sidewall, which perforations are sealed |
| 4686006 |
Apparatus and method for the manufacture of fibrous webs |
August 11, 1987 |
| Apparatus and method for laying down a fibrous web from a foam-fiber furnish. A headbox includes walls defining an elongate channel extending transversely of the direction of movement of the forming wire. Foam-forming nozzles are positioned to introduce foam-fiber furnish into the ch |
| 4659608 |
Embossed fibrous web products and method of producing same |
April 21, 1987 |
| A method of embossing a sheet of non-woven fibrous web, and the resulting fibrous sheet structure, e.g. toilet tissue, with a series of identical boss elements arranged in a uniform pattern in a manner to avoid nesting of the embossments and resulting non-uniform product rolls when the s |
| 4627806 |
Apparatus for the manufacture of fibrous webs with helical rotor |
December 9, 1986 |
| An apparatus for the manufacture of fibrous webs comprises a forming wire and a distributor for depositing dry fibers on the wire. The distributor comprises at least one cylindrical chamber having its axis extending transversely of and in a plane parallel to the wire. The lower semic |
| 4612431 |
Package assembly and method for storing and microwave heating of food |
September 16, 1986 |
| A packaged arrangement (1) contains a tray (4) which is convertible into a heating stand by inversion thereof. The walls of the tray are of a material that is transparent to microwave energy, but a support wall (10) which forms a bottom of the tray and top of the stand is provided with a |
| 4610743 |
Pattern bonding and creping of fibrous substrates to form laminated products |
September 9, 1986 |
| Two or more webs (11 and 12) of highly bulked substrate are passed into a nip formed between a gravure roller (14) and an impression roller (15). The impression roller has raised areas defining an interconnected network of lines such that the webs are compressed only under the raised are |
| 4574645 |
Apparatus for sampling particulate material |
March 11, 1986 |
| An apparatus for sampling particulate material, such as wood chips as they fall through an unloading chute, includes a tube mounted in a wall of the chute and having an upper end extending into the path of chip flow. The upper end includes a generally semi-cylindrical extension terminati |
| 4567341 |
Side vented and shielded microwave pizza carton |
January 28, 1986 |
| A microwave carton (2) including a bottom tray-shaped portion (4) having upstanding inner side wall panels (10,12,14,16) and a telescoping top portion (6) having downwardly extending side wall panels (30,32,34,36) wherein a layer (28) of microwave reflective material covers the entire |
| 4555605 |
Package assembly and method for storing and microwave heating of food |
November 26, 1985 |
| A packaged arrangement (1) contains a tray (4) which is convertible into a heating stand by inversion thereof. The walls of the tray are of a material that is transparent to microwave energy, but a support wall (10) which forms a bottom of the tray and top of the stand is provided with a |
| 4553010 |
Packaging container for microwave popcorn popping and method for using |
November 12, 1985 |
| A container (2) for heating popcorn or other types of particulate food items in a microwave oven formed from a single blank having a bottom panel (4) coated with a microwave interactive material (26) adding heat to particulate food items such as popcorn kernels and configured so that eac |
| 4546884 |
Tear strip end closure on liquid tight carton |
October 15, 1985 |
| A liquid tight carton with a pour spout having a tear-off portion separated from spout edge forming panels, and panels forming a top fin seal, by lines of structural weakness. The spout of the castor is formed from extended portions of the sidewalls and one end wall. The outer surface of |
| 4543156 |
Method for manufacture of a non-woven fibrous web |
September 24, 1985 |
| Apparatus and method for the manufacture of a non-woven fibrous web such as paper from a dispersion of fibers in a foamed liquid in which fiber furnished in a foamed liquid comprising a solution of surfactant in water is discharged from a headbox into the nip of a twin forming wire prior |
| 4530459 |
Folding carrier carton including split cover closure, removable trays and blanks for making same |
July 23, 1985 |
| A collapsible, carrier carton comprises a split cover, overlay closure with self-erecting handles and a side panel/web flange lock. This web lock permits secure locking of the split cover closure into a flattened and closed configuration and secures the removable upper tray(s) in a locke |
| 4520946 |
Package structure |
June 4, 1985 |
| A package includes two or more individual cup dispensing units, each unit comprising a carton holding a stack of nested tapered cups. Each carton of a dispensing unit is of paperboard having a generally circular opening in a top wall through which the tapered cups protrude, and which ope |
| 4518557 |
Process for skin foam |
May 21, 1985 |
| In the manufacture of skinned foam a technique for matching the viscosity of the skin as well as the foam so that both flow uniformly through the die includes the addition of blowing agent to all of the layers of the structure. To prevent foaming of the skin layers, nucleating agent is n |
| 4514354 |
Manufacture of molded paperboard articles |
April 30, 1985 |
| A method of forming pressed paperboard and pressed paperboard articles from a cellulosic fiber pulp, wherein the paperboard or paperboard articles has improved high temperature properties required of ovenable cookware. A preformed sheet or blank formed from a cellulosic fiber pulp, and h |
| 4507173 |
Pattern bonding and creping of fibrous products |
March 26, 1985 |
| A web (12) of highly bulked substrate is passed into a nip formed between a gravure roller (14) and an impression roller (15). The impression roller has raised areas defining an interconnected network of lines such that the web is compressed only under the raised areas; as a result, the |
| 4505391 |
Cook-in carton with improved integral support structure |
March 19, 1985 |
| A cook-in carton includes a two-panel wall. The inner one of the two panels is provided with vent openings, and the outer one of the panels extends over the openings and is adhered to the inner panel by tabs on opposed edges thereof. The outer panel includes between the tabs a weakened |
| 4498956 |
Apparatus and method for the manufacture of a non-woven fibrous web |
February 12, 1985 |
| Apparatus and method for the manufacture of a non-woven fibrous web such as paper from a dispersion of fibers in a foamed liquid. In a preferred embodiment, a solution of surfactant in water is initially discharged from a headbox into the nip of a twin forming wire prior to its passage o |
| 4497431 |
Container structure |
February 5, 1985 |
| A closed paperboard carton for containing hot foods includes an automatically openable vent responsive to presence of hot vapor emanating from the food to accommodate escape of the vapor. The vent comprises a tab portion formed in a wall of the carton, defined by at least a pair of e |
| 4482429 |
Paper webs having high bulk and absorbency and process and apparatus for producing the same |
November 13, 1984 |
| Paper webs are produced in a modified conventional felted wet press process in which the fiber furnish has a chemical debonding agent added thereto in high concentrations. The web (17) is formed on a conventional Fourdrinier wire (12), transferred to a moving felt (19) which presses the |
