Class 156/473 - Separate means holding web in flutes

Subclass of Class 156 - Adhesive bonding and miscellaneous chemical manufacture
Definition: Apparatus having a discrete means maintaining the shaped
No. of patents: 57
Last issue date: 03/06/2012

«First «Previous1 2 Next»Last»

Number	Title	Issue Date
8127816	Machine for producing a corrugated cardboard web lined at least on one side A machine for producing a corrugated cardboard web lined at least on one side has a pressing device, which has a tension roller for guiding a pressing belt. The tension roller is formed from a core and an outer jacket surrounding the said core. The core and the oute...	03/06/2012
6926656	Method and apparatus for fabricating corrugated composite stiffeners An apparatus and method for fabricating corrugated composite stiffeners provides a base tool having grooves formed in an outer surface and a roller having a rotating shaft and a removable, lobed, elastomeric member surrounding the shaft. The lobes of the elastomeric...	08/09/2005
6913570	Method and apparatus for producing a composite structural panel with a folded material core A folded core structure is produced by embossing fold lines into a flat planar material web, initiating folds along the fold lines on the upper and lower surfaces of the material web, proceeding with the formation of the folds along the fold lines to deform the mate...	07/05/2005
6153037	Method and apparatus for producing multi-ply corrugated paperboard Method and apparatus for producing a multi-ply corrugated paperboard (105) by repeatedly laminating multi-ply corrugated mediums (102, 103) with different pitches and widths between top and bottom liners is disclosed. This invention thins the paperboard a...	11/28/2000
6098687	Single facer with angled medium feeding The present invention relates to a single facer, which comprises a humidifying and heating unit placed on the upstream side of an air pressurization corrugating mechanism for humidifying and heating a corrugating medium and a feed mechanism for supplying ...	08/08/2000
6068724	Machine and method for manufacture of a sheet of single-face corrugated board by gluing under tension Machine (1) and method of manufacture of a single-face corrugated board sheet whereby a fluted cardboard sheet (23) is glued to a flat sheet. The machine comprises three heating cylinders having parallel axes, tangently arranged pairwise and means (26) fo...	05/30/2000
6012501	Single facer with small intermediate corrugating roll and variable wrap arm device The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter corrugating roll captured between a larger diameter conventional corrugating roll and a backing roll arrangement. The smaller diameter corru...	01/11/2000
5951816	Single facer with small intermediate corrugating roll The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter corrugating roll captured between a larger diameter conventional corrugating roll and a backing roll arrangement. The smaller diameter corru...	09/14/1999
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 identical support arrangements arranged side-by-side along the...	03/17/1998
5698054	Method and apparatus for the lamination of apertured or non-apertured three-dimensional films to apertured or non-apertured three-dimensional and/or flat films The present invention provides an improved method for laminating a first three-dimensional apertured or non-apertured film material to a second flat or three-dimensional apertured or non-apertured film material utilizing the heat generated by the extrusio...	12/16/1997
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 for joining the liner and glued corrugated media. A pressur...	10/28/1997
5628865	Single facer with small intermediate corrugating roll The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter intermediate corrugating roll captured between a pair of larger diameter conventional corrugating rolls. The two large diameter rolls captur...	05/13/1997
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 assembly for applying the fluted sheet against its periphery, a s...	03/25/1997
5588945	Method and device for spacing a corrugating finger relative to a corrugating roll A device for and method of spacing a corrugating guide finger relative to a corrugating roll. The device includes a tail and a head. The head has a slot therethrough for sliding receipt of the corrugating guide finger. To space the finger, the slot is sli...	12/31/1996
5512020	Belt meandering preventing system in single facer Disclosed is a belt meandering preventing system in a single facer consisting of an upper fluted roll, a lower fluted roll, a gluing mechanism, and an application mechanism having an endless belt extended over a plurality of rolls so as to be able to run ...	04/30/1996
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 predetermined corrugation on a corrugating medium to be passed bet...	09/12/1995
5389188	Apparatus for, forming pleats in a sheet 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 drawing the web through a bonding device. The pleat forming a...	02/14/1995
5376203	Rotary molding apparatus and method A method and apparatus for molding foamed materials for use as carpet underpadding is disclosed. In one aspect, the process and apparatus involves pulling a sheet of a foamed material through a first set of pull rolls at a first pull rate followed by heat...	12/27/1994
5360505	Door for a single-face station of a machine that produces corrugated cardboard A vertical rear door for a single-face station which has a pressurized volume and which station is used to produce corrugated cardboard. The door consists of a panel with an outer dimension slightly smaller than the inner dimensions of the door frame in w...	11/01/1994
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 applying adhesive to the peaks of at least one of the two c...	04/26/1994
5188691	Apparatus and method for producing air cushion product An improved apparatus and method for producing fully air-cushioning dunnage from two sources of flexible thermoplastic film. This improved apparatus and method provides a fully air-filled dunnage by maintaining a forming roller (16) at a cold temperature....	02/23/1993
5171388	Apparatus for and method of applying an elastic material to a flexible backing An apparatus and method are disclosed for securing elastic to a flexible backing for use in catamenial pads. The apparatus includes means for feeding the backing sheet onto a first drum having a plurality of surface grooves formed therein. The backing she...	12/15/1992
5160400	Corrugating apparatus having a liquid filled seal roll An improved idler roll is disclosed including a longitudinal cylinder having tubular walls sealed at the ends by flanged stub shafts. The interior of the idler roll is filled with ethylene glycol. The idler roll can be placed into rolling abutment with a ...	11/03/1992
5145549	Apparatus for producing one-sided corrugated paperboard A device for the production of one-sided corrugated paperboard with two corrugated rollers which corrugate a paper sheet. A glue mechanism for applying glue onto the corrugated paper sheet has a glue applying roller cooperating with a corrugated roller, a...	09/08/1992
5110396	Floating air seal for an apparatus for manufacturing single faced corrugated board The invention is directed to a floating air seal for a cylindrical rotatable member having a sealing member adjacent to the rotatable member for preventing air from flowing between the seal and rotatable member, and resilient member for biasing said seal ...	05/05/1992
4917664	Fluted roll for a corrugated board manufacturing machine A roll (16) for a corrugated board manufacturing machine (10) comprises a shell (32) defining an inner suction chamber (56) permanently connected to a source of low pressure. A series of radial suction apertures (60) open onto the peripheral surface (58) ...	04/17/1990
4897146	Apparatus and method for fabricating structural panels having corrugated core structures and panel formed therewith An apparatus and method for continuously fabricating lightweight structural panels and the structural panel fabricated thereby are provided, the apparatus being capable of heating a core sheet to a temperature at which the sheet will be plastically deform...	01/30/1990
4818330	One-sided corrugated board machine having replacable corrugating rollers One-sided corrugated board machine having at least two pairs of corrugated rollers, each pair forming an assembly including a lower corrugated roller and an upper corrugated roller. Each of the pairs of rollers is supported on a movable, lockable bearing ...	04/04/1989
4787954	Vacuum tube holder for corrugating machines Apparatus for forming and fabricating single-faced paperboard, the lower corrugating roll is provided with numerous circumferential grooves which are partially evacuated beneath a traveling overlayment of paper web for the purpose of holding the web tight...	11/29/1988
4738744	One-sided corrugated board machine One-sided corrugated board machine having at least two pair of corrugated rollers, a lower pair and an upper pair, wherein each pair of lower and upper corrugated rollers are supported on separate lateral, pivotable and fixable bearing brackets. A movable...	04/19/1988
4644896	Lower roll apparatus for single facer A lower roll apparatus for a single facer includes a nozzle-equipped scraper constituted by a scraper and a nozzle which are integrated with each other. The nozzle-equipped scraper is inerted into a circumferential groove formed on a lower roll and is dis...	02/24/1987
4618394	One-sided corrugated cardboard machine with suction device A one-sided corrugated cardboard machine having an upper and a lower fluted roller, a pressure roller associated with the lower fluted roller, a suction box essentially extending the width of the lower fluted roller and connected to a vacuum source while ...	10/21/1986
4584052	Vacuum single facer A single facer machine of the vacuum or fingerless type for making a corrugated paperboard laminate. A new means for applying vacuum to the paperboard on the second corrugator roll. The second corrugator roll is provided with axially spaced circumferentia...	04/22/1986
4581095	One-sided corrugated cardboard machine One-sided corrugated cardboard machine comprising a first fluted roller and a second fluted roller in meshing engagement with each other and between which a web of cardboard is introduced to be corrugated, the second fluted roller being provided in the ci...	04/08/1986
4447285	Device for holding paper close against a corrugating roller in a corrugated board-making machine The invention is related to the technical field of cardboard-making machines, and in particular it concerns a device for holding paper close against a corrugating roller in a corrugated board-making machine. The technical problem to be solved is that of provid...	05/08/1984
4415397	Apparatus for making toothed belt A reinforced elastomeric drive belt 20 having tooth-like protuberances 21 for meshing with the teeth of a pulley is provided with reinforcing fibers 27 distributed through at least a portion of each tooth 21. Also provided is a method for building the improved...	11/15/1983
4397704	Method and apparatus for applying discrete lengths of elastic strip material to a continuously moving web A method and apparatus for applying discrete lengths of elastic strip material to predetermined areas of a continuously moving web by corrugating the web and applying the discrete lengths of substantially unstretched adhesively coated elastic over the cor...	08/09/1983
4386998	Adhesive applicator and method for cigarette-to-filter adhesion and similar applications This disclosure is concerned with enabling the use of multiple liquid adhesive nozzles principally to provide continuous uniform adhesive layers, particularly in relatively small items such as cigarette filter tips or the like, wherein a critically orient...	06/07/1983
4381212	Fingerless single facer A single facer machine for making a corrugated web is provided with a vacuum means for retaining a corrugated medium on one of the corrugating rolls. Said one corrugating roll has a core through which a heated fluid may flow. The core is surrounded by a s...	04/26/1983
4369087	Method and apparatus for making pile fabrics A web is placed on a grooved cylinder, folded by pressing it into the cylinder grooves, and attached to a backing sheet to form a pile fabric. Folding is performed by rollers with blades which enter and move along the length of the grooves. The rollers ar...	01/18/1983

«First «Previous1 2 Next»Last»

PatentStorm

Bizarre Patents

PatentStorm News

Class 156/473 - Separate means holding web in flutes