Class 493/269 - TUBE MAKING

Subclass of Class 493 - Manufacturing container or tube from paper; or other manufacturing from a sheet or web
Definition: Method or apparatus for forming a sheet or web workpiece
No. of patents: 40
Last issue date: 05/25/2010

Number	Title	Issue Date
7722518	Process for production of a bobbin tube for yarn, device for embodiment of such process, bobbin tube obtained and mode of utilisation of said bobbin tube A cardboard tube, with respect to a narrow marginal end area of the same provided with a hollow interior roll, is applied against a rotatory die which has a concave surface suitable for forming an entrant perimetric step by means of constriction of the narrow margin...	05/25/2010
7527586	Winding core for fabrics A winding core for nonwoven fabrics and the like comprises a wound paperboard tube comprising a plurality of paperboard layers wound one upon another about an axis of the tube and adhered together, and regions of grit bound in an adhesive binder, the regions being a...	05/05/2009
7452318	Machine and method for forming helically wound paper tubes having improved mechanical resistance A machine for producing a tubular product by helical winding of strips of web material including a mandrel and a winding member to helically wind the strips of web material around the mandrel is disclosed. To improve adhesion between the strips, at least one pressur...	11/18/2008
7407470	Apparatus for feeding paper webs and the like, for the production of cardboard tubes Apparatus for feeding paper webs and the like, for producing cardboard tubes, characterized in that it comprises a plan modular structure (1) with a development mostly longitudinal and exhibiting two opposite surfaces (1a, 1b), one...	08/05/2008
7399264	High frequency induction welding of austenitic stainless steel for pressure vessel tubing A process for producing high pressure tubing from austenitic stainless steels. The process entails passing a continuous austenitic stainless steel strip through pre-weld rolls enclosed in a forming housing to produce a continuous tubular shape having opposing edges ...	07/15/2008
7361130	System for production and subsequent palletizing of tube segments, bags or sacks A system for the production and subsequent palletizing of tube segments, bags, or sacks has at least one functional unit for production of tube segments, bags, or sacks, at least one device for depositing and stacking, which places and stacks the finished tube segme...	04/22/2008
7322922	Method and device for jointing of cores End-to-end joining of sleeves. A first glue strand is applied to the end joint surface of one of the sleeves, the first glue strand having properties that cause an immediate fixing of the end joint surfaces of the sleeves. A second glue strand is applied to the end ...	01/29/2008
7175585	Heat-insulating container and apparatus for producing the same A heat-insulating container is used for an instant dried food and is excellent in heat-insulating property, design and economy. The container comprises a paper cup body with a bottom, which has an inner surface coated with a polyolefin resin and is provided with an ...	02/13/2007
7160236	Process for production of a bobbin tube for yarn, device for embodiment of such process, bobbin tube obtained and mode of utilization of said bobbin tube A cardboard tube, with respect to a narrow marginal end area of the same provided with a hollow interior roll, is applied against a rotatory die which has a concave surface suitable for forming an entrant perimetric step by means of constriction of the narrow margin...	01/09/2007
7144358	Method and apparatus for manufacturing tube-shaped packages made of flexible material Method for manufacturing a tube-shaped package having longitudinal sides and a bottom and made of flexible material, wherein the longitudinal sides of the package are sealed prior to forming the bottom and the bottom is formed by pushing an annular portion of the fl...	12/05/2006
7112169	Plastic bag and method A system and method for preparing a plastic bag especially useful for carrying electronic products by extruding spaced apart ribs onto the interior surfaces so that the bag volume is greater, so that a greater amount of VCI or anti-static material can be carried in ...	09/26/2006
7003929	Apparatus and method for automated forming of sleeves for sliced products A forming apparatus is provided for forming a film into a sleeve around a filling tube. The forming apparatus has contact surface geometry that is contacted by the film as it travels thereacross configured to ensure smooth forming of the film into the sleeve. Smooth...	02/28/2006
6976618	Tubular cartons The present invention provides a tubular carton sleeve (3) comprising a first sheet (4) superimposed at least in part on a second sheet (6), said first sheet providing an inner wall (4) of said sleeve and said second sheet providing an ou...	12/20/2005
6811530	Bag manufacturing former laminated films A former is used to manufacture a bag in a packaging machine. The radius of curvature of the former top along a film guiding direction is between 0.27 mm and 0.50 mm, the average surface roughness of the former top is less than 10 μm, and the number of high project...	11/02/2004
6755774	Method of automatically producing bags with holes and apparatus therefor Protective bags made of a plastic film have heretofore been produced by folding two pieces of films by hand, and it is very difficult to mass-produce asymmetrical bags at a low cost. Protective bags made of a film bearing any design are now continuously produced at ...	06/29/2004
6682469	Inside printing of flexible packages A flexible package, and method for manufacturing same, that provides for the presentation of graphics inside the package using existing converter and vertical form and fill packaging machine technology. The invention involves producing a slightly wider fi...	01/27/2004
6651694	Insulating cover and method for liquid supply tube Covers, containers, multi-ply insulators and methods are disclosed for maintaining a desired thermal environment for carried or conveyed materials. The insulating cover of this invention for use over a liquid supply tube of the type associated with body m...	11/25/2003
6612356	Apparatus for improving film machinability during film sealing A back-up pad is provided over an anvil surface of a back-up plate, and between the anvil surface and a sealing surface of a sealing die, in an apparatus for forming seals between layers of film material. The back-up pad has a slip layer on one side there...	09/02/2003
6592505	Device for forming a tube provided with gussets A device for forming a tube provided with gussets out of a single- or multi-layer, continuously pre-stressed material web consists of divided upper and lower folding plates mounted on the machine frame that determine the width of the tube to be formed whe...	07/15/2003
6589147	Lightweight former and former assembly A former whose wing component incorporates periodic openings, a tube component (that may, or may not, incorporate periodic openings) and a base component (that is shaped to conform substantially to the former's tube geometry) is described. Such a former, ...	07/08/2003
6558306	Multi-ply composite container with regions of weakened strength and method for manufacturing same A multi-ply composite container for consumer products with at least one region of weakened strength and method for manufacturing same is provided. The composite container includes a multi-ply composite tube having a tubular body ply, a liner ply adhered t...	05/06/2003
6416453	Seal bar mechanism for bag machines The present invention relates to a "poly" bag machine and, more particularly, to mechanisms for operating the seal bar component of such machines. The machine according to the invention includes a mechanism for reciprocatingly raising and lowering the sea...	07/09/2002
6296600	Composite container having foamed adhesive A multi-ply tubular container for products is provided having a first ply wrapped into a tubular shape and having an inner surface and a second ply wrapped into a tubular shape and having an outer surface positioned in face-to-face contact with the inner ...	10/02/2001
6196988	Method of forming a flexible applicator for inserting an article into a mammalian body cavity The present invention relates to a flexible applicator for inserting an article into a mammalian body cavity. The applicator has an elongate, hollow, structural member suitable for containing the insertable article, and an elongate expulsion member which ...	03/06/2001
5916403	Methods and apparatus for forming cylindrical photosensitive elements The present invention relates to methods and apparatus for forming seamless cylindrical photosensitive elements of uniform thickness on flexible sleeves. The apparatus for forming a seamless cylindrical photosensitive element of uniform thickness on a fle...	06/29/1999
5697786	Dental fluid suction unit and method for its manufacture A flexible paper tube, in particular a throw-away saliva suction unit for dentistry, comprises two tubular sections integrally connected to each other via a bellows and is characterized in that the paper tube (2, 6) is constructed from multi-layer paper, ...	12/16/1997
5597433	Method and apparatus for manufacturing plastic canisters The present invention is directed towards a method and apparatus for making clear plastic canisters, in which the canisters retain the full clarity of the clear plastic canister sidewall stock and base stock while they are being processed into canisters, ...	01/28/1997
5389067	Tampon applicator and method of making same A method for forming a tampon applicator having a dome shaped forward end is disclosed, in which the requisite ejection force for discharging the pledget from the applicator is reduced by radially bending the petals forming the domed tip about their base ...	02/14/1995
4950345	Method and apparatus for making improved seals between polymeric film materials A back-up pad is provided over an anvil surface of a back-up plate, and between the anvil surface and a sealing surface of a sealing die, in an apparatus for forming seals between layers of film material. The back-up pad has a slip surface on one side the...	08/21/1990
4925440	Apparatus for the winding of container jackets An apparatus for the making of container jackets from flat cardboard or plastic blanks. The blank is folded around a core by means of pivoted fingers which are moved toward the core while ends of the fingers are guided in guide passages to produce pivotin...	05/15/1990
4911685	Coin package An easy opening coin package is formed with a rectangular web material consisting of a medially notched first edge overfolded by a tabbed second edge which has been laminated with a discontinuous adhesive strip. The fixed first edge fold is spaced from th...	03/27/1990
4713135	Process for seaming coated cellulose webs A method for seaming flexible cellulose webs, to form a flexible cellulosic laminate structure, by a process which comprises overlapping edges of said cellulosic web, applying therebetween an aqueous zinc chloride solution, heating and pressing together t...	12/15/1987
4655738	Apparatus for the manufacture of a tubular container sleeve In apparatus for manufacturing tubular container sleeves, a blank is wrapped around a fixed mandrel by means of a pair of sweeper arms that are swingable and movable in translation. In each sleeve forming operation the sweeper arms are displaced from a po...	04/07/1987
4535506	Method and device for everting flexible tubular member A method and device for everting flexible tubular members, such as food casings and the like, is disclosed wherein a tubular member is axially displaced by a frictional engagement means, which means is deposed in a distal end portion of the member, and wh...	08/20/1985
4505769	Method and apparatus for making a wrapper sleeve A wrapper sleeve is made from a film length in the following consecutive steps: wrapping the film length about a sealing mandrel such that opposite longitudinal edge zones of the film length are in a face-to-face oriented relationship; providing a sealing...	03/19/1985
4359076	Adjustable basket filler, blank and method of making A basket filler, blank for making same, and a method of making same include an elongated body member formed of flexible and yet resilient material, shaped and preformed so that the body member has arcuate edges along the long sides thereof, one end of the...	11/16/1982
4304561	Film folding device Film running one direction is folded along a longitudinal folding line by a folding plate and folding blade. The folding plate has a front edge and an inclined edge extending in the lateral direction against the film feeding direction, the folding blade e...	12/08/1981
4284228	Packing containers of laminated material having venting means A packing container e.g. for sterile milk is manufactured from laminated material which is folded and sealed to the desired container shape. In the seal, cut surfaces facing towards the inside will occur which have to be sealed so as to prevent the centra...	08/18/1981
4053346	Method and apparatus for forming thermoplastic containers A fabricated cup or other nestable container in which the sidewall is formed from a rectangular sheet-like blank of a thermoplastic material, particularly an expanded thermoplastic material, the blank having its ends joined to one another in a liquid-tigh...	10/11/1977

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Class 493/269 - TUBE MAKING