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6032713 |
Corrugated board manufacturing system
A first tension adjustor for adjusting the tension of a liner and a pitch measuring device for measuring the corrugation pitch of a first core board of a single-faced corrugated board are used. A...
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5993587 |
Double facer with threading means
This invention relates to a double facer of a corrugating machine which aims to improve a drying state or bonding state between a single-faced corrugated fiberboard sheet and a liner and improve...
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5972091 |
Starch replacement composition for corrugating adhesives and the adhesives prepared therewith
A dry blend pre-mixture composition for use in making corrugating adhesives is comprised of starch and from about 5% to about 20% of ground plant germ. The starch and germ can be derived from...
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5948198 |
Method of producing a corrugated construction unit
The present invention relates to a corrugated component (10) of wood-like material. The component consists of at least three layers of wooden material sheets (1,2) which are joined together with...
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5948197 |
Air pressure assisted beltless holddown for double backer
An essentially non-contact holddown system for a corrugator double backer utilizes air pressure supplied by a plenum positioned above and closely spaced from the lower heating section which...
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5944252 |
Corrugated board container and method of making the same
A method of making corrugated board having at least one fold region includes the steps of securing at least two sheets of paper liner in complementary facing engagement to create a first...
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5925209 |
Process and device for producing corrugated board
In a process for manufacturing corrugated cardboard, corrugated cardboard is produced by gluing several individual webs (10, 11, 31) to each other by their mutually opposite surfaces. Several...
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5897824 |
Surface heating for a corrugated medium web
In a single facer, the premoistened medium web is dried on both surfaces to a shallow depth immediately prior to passage through the corrugating nip. The dried shallow surface layers substantially...
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5882462 |
Method for fabricating a corrugated composite channel
A method for making a corrugated fiber reinforced preform for a corrugated channel is disclosed which involves the sequential application of fiber plies to a shaping tool, each of the plies...
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5876530 |
Method and apparatus for single facer glue application adjustment
A glue application roll 1 rotating at a circumferential velocity v 1 is moved to touch a downstream side corrugating roll (an upper corrugating roll) 9 rotating at a circumferential velocity v 2 ...
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5870884 |
Compartmented package with multistage permeation barrier
A multiple compartment package having a connecting bridge with a frangible internal barrier is made from two composite or thermoplastic sheets or webs welded together to form the front and back...
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5837085 |
Method of making a toothed belt with a reinforced fabric covering
A method of making a toothed belt. A toothed belt is made by guiding a strip of fabric to pass through a thermosetting resin to soak it with thermosetting resin, then the soaked fabric is guided to...
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5807452 |
Method for wrap-around labeling of containers
The invention relates to a method for attaching wrap-around labels to cylindrical or prismatic containers starting with cutting of a section of a label from a suitable foil material. Then, the...
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5733403 |
Product packaging material and its manufacturing method
This invention relates to a product packaging material and method, and in particular to a product packaging material (27) formed from a length of rolled corrugated paper (20) and a method of...
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5728256 |
Smooth press for a machine for manufacturing corrugated cardboard
A smooth press implements the application of a covering paper against a corrugated paper passing around a ribbed cylinder or roll of a single corrugator. The smooth press comprises a series of...
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5702801 |
Method for producing a variable density, corrugated resin-bonded or thermo-bonded fiberfill and the structure produced thereby
A corrugated fiberfill structure is provided including at least one fibrous web folded to form a plurality of pleats having alternating crests and bases, each of the pleats having a pair of legs in...
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5693167 |
Corrugated board manufacture
Method and apparatus for manufacturing corrugated board comprising two layers of corrugated medium joined together in tip-to-tip registration of the two mediums, without an intermediate liner, and...
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5685929 |
Smooth press in a machine for manufacturing corrugated cardboard
A smooth press comprises a smooth cylinder acting conjointly with a lower ribbed cylinder in order to apply a covering paper against a corrugating paper passing around the ribbed cylinder and...
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5685936 |
Method for preparing carbon honeycomb structure
Disclosed is a method for preparing a carbon honeycomb structure that includes the steps of: alternately stacking a plurality of corrugated sheets each of which is produced by corrugating a...
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5681422 |
Pressure roll for a single facer
A single facer apparatus for the production of single face corrugated web includes a pressure roll having a flexible outer surface which is internally biased outwardly to provide the pressure nip...
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5643397 |
Equipment for forming a sheet of loop material
A sheet of loop material adapted to be cut into pieces to form loop portions for fasteners of the type comprising releasably engageable hook and loop portions, or to be incorporated into items such...
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5639333 |
Method for preparing corrugated board with a fast setting starch-based corrugating adhesive having partially hydrolyzed water soluble polyvinyl alcohol component
Corrugating adhesives free of incompatibility problems with water soluble partially hydrolized polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a...
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5626709 |
Single facer corrugating roll flute contour
A single facer has corrugating rolls of which the cross-sectional tip and root curves are elliptical (as broadly defined) to form a medium compression zone 38 beyond which, on each side of the tip...
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5620545 |
Method of making a corrugated nonwoven web of polymeric microfiber
A method of making a corrugated nonwoven web of polymeric microfiber, which method comprises: (a) introducing a nonwoven web of polymeric microfiber having a solidity of 0.1 or less into a...
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5614048 |
Machine and process for making a sheet of single face corrugated cardboard
A machine for manufacturing a sheet of corrugated board by gluing a fluted sheet of board onto a liner sheet of board includes: a fluted cylinder, a central fluted cylinder equipped with an...
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5611887 |
Single facer and corrugating roll for the same
To provide a corrugating roll for a single facer which avoids generation of press marks or fracture of paper without a loss of paper by suppressing a contact pressure between a corrugating medium...
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5612111 |
Method of producing and product of heat-proof laminate board
A method of producing and the product of heat-proof laminate boards are disclosed. Each laminate board cut from a continuous laminate has a corrugated upper layer, a middle foam layer produced by...
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5609942 |
Panel having cross-corrugated sandwich construction
A cross-corrugated panel has a core between two faceplates, where the core omprises two groups of corrugated elements that are perpendicular to each other. The corrugated elements have peaks and...
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5589014 |
Method for forming pleats in a sheet-like material
A method and apparatus are provided for forming pleats in a thermoplastic material by feeding a continuous web of sheet-like thermoplastic material to a pleat forming apparatus and subsequently...
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5578160 |
Heat transfer control system for a double backer
A system for controlling the rate of heat transfer between the heating surfaces and a corrugated web in a double backer includes an air flow system operable to selectively apply a vacuum to the...
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5568877 |
Method of manufacture for container for hot food
A method of manufacturing a container for the temporary storage of foods is disclosed. The container includes a corrugated medium having a single backer paper thus creating an exposed corrugated...
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5569147 |
Method and device to produce corrugated strip packaging parts
A method and a device for producing corrugated strip packaging parts to be used for packaging cylindrical or elongated parts in separate compartments. The device includes a series of form bodies...
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5558924 |
Method for producing a corrugated resin-bonded or thermo-bonded fiberfill and the structure produced thereby
A method is provided for forming a corrugated structure from a fibrous web by first forming a fibrous web; alternatingly lapping the fibrous web; folding the fibrous web to form corrugations;...
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5543204 |
Bi-directionally corrugated sandwich construction
A bi-directionally corrugated sandwich construction for use in applications equiring high-strength, light-weight components is disclosed. The sandwich construction comprises first and second face...
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5501007 |
Method of producing sorbing sheets and laminates having reactivating and invigorating functions
A resistor, such as a resistor wire, is contained in a sheet, preferably a low density sheet consisting mainly of inorganic fiber. Adsorbent or absorbent (hereinafter "sorbent" collectively) is...
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5498304 |
Method of manufacturing corrugated board using a thermal radiant energy source
Corrugated paperboards are prepared for corrugation and adhesive bonding of mediums and liners by exposing the mediums liners and adhesives to radiant energy from a thermal source ranging from...
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5456783 |
Apparatus and method for enhancing heating uniformity for setting adhesive in corrugated paperboard manufacturing
An apparatus and method is disclosed for slidably contacting and pressing upon the back side of a conveyor to urge an advancing corrugated paperboard sheet into substantially uniform contact with...
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5454898 |
Fast setting starch-based corrugating adhesive having partially hydrolized water soluble polyvinyl alcohol component
Corrugating adhesives free of incompatibility problems with water soluble partially hydrolized polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a...
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5449431 |
Single facer in corrugator having a plurality of fluting units
Disclosed is a single facer provided with a plurality of fluting units, each consisting of an upper fluted roll and a lower fluted roll which engages with the upper fluted roll and forms a...
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5443891 |
Low amplitude wave-board
A low amplitude wave-board panel having improved bending strength and bending stiffness properties is provided. More specifically, the amplitude of the waves is substantially equal to, or less than...
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5443779 |
Method of production of reinforced composite corrugated body and method of formation of corrugating rollers for use therein
The strength and workability of a reinforced composite corrugated body are improved. A corrugated body is produced such that corrugate lines provided with vertically spaced ridges and grooves...
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5423934 |
Method for producing a laminate
A method for producing a laminate structure from smooth and corrugated webs which may be used to form a corrugated or cellular contactor for the exchange of heat, moisture, and the like. The paper...
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5380579 |
Honeycomb panel with interlocking core strips
The core of a honeycomb panel consists of a set of corrugated strips each of which alternate abut the immediately adjacent strips. Interlocking protrusions are formed in the abutting portions of...
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5368891 |
Method and apparatus for producing glossy printed matter
Disclosed is a method and an apparatus for efficiently and economically producing printed matter having a high degree of gloss, rub-resistance, water-resistance and resistance to contamination. In...
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5348610 |
Apparatus for manufacturing corrugated board
An apparatus for making a single face corrugated board having two fluted mediums bonded together at the flute tips has (a) mill roll stands for two mediums and one liner; (b) a carrier roll fluted...
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5344520 |
Single-faced corrugated cardboard sheet making machine having an adjustable pressing means
An improved single-faced corrugated cardboard sheet making machine is provided, in which at the time of sticking a core paper web and a liner to each other in a single-facer equipped corrugating...
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5332458 |
Corrugated paperboard strength enhancing process
A corrugated paperboard strength enhancing process includes at least one resin application station located within the confines of the corrugator at a position where it is operable to apply a...
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5312511 |
Apparatus for the preparation of thermoplastic honeycomb
Fiber-reinforced thermoplastic honeycomb is prepared in a continuous manner one half cell at a time by laying down a corrugated web of thermoplastic, with and without fiber-reinforcement atop a...
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5306384 |
Machine for making corrugated board including a vacuum/positive pressure transfer roll
A machine for making corrugated board, comprising means to feed two separate webs between two respective pairs of corrugating rolls to form two corrugated layers, a first adhesive application for...
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5256231 |
Method for making a sheet of loop material
A method of providing a sheet of loop material adapted to be cut into pieces to form loop portions for fasteners of the type comprising releasably engageable hook and loop portions, or to be...
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