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Class 493/209 - By reciprocatory heat sealer


Subclass of Class 493 - Manufacturing container or tube from paper; or other manufacturing from a sheet or web
Definition: Method or apparatus including use of means to raise the
No. of patents: 97
Last issue date: 07/29/2008


1      
NumberTitleIssue Date
7404789Machine and method for making filter bags for infusion products
A machine (1) for making filter bags (4) of tetrahedral shape for infusion products comprises a revolving conveyor drum (15) driven by a first drive shaft (16) to feed a web (5) of filter paper along a path (P) on which there are p...
07/29/2008
7396321Pouch packaging machine having adjustable operating orientations
A pouch packaging machine and method of selectively changing the orientation of a pouch packaging machine. The pouch packaging machine has at least one spool for holding at least one roll of packaging film material. The packaging film material advance through a pres...
07/08/2008
7389623Seal apparatus
The sealing apparatus comprises (a) a heat seal jaw, (b) a heat seal bar having two heaters arranged in parallel, being provided in a front edge of said heat seal jaw and having a working surface, (c) a counter jaw disposed oppositely to the heat seal jaw, (d) a cou...
06/24/2008
7357217Faceplate cover
The present invention provides an improved method and apparatus for manufacturing communication devices. A cover is attached to a surface of a faceplate that includes at least one opening, to provide enhanced device protection and sound quality. In one embodiment of...
04/15/2008
7204794Machine and method for making filter bags for infusion products
A machine (1) for making filter bags (4) of tetrahedral shape for infusion products comprises a revolving conveyor drum (15) driven by a first drive shaft (16) to feed a web (5) of filter paper along a path (P) on which there are p...
04/17/2007
7174699Combination seal bar and cutter
A combination sealing and cutting device comprising: an elongated anvil having an elongated slot therein; an elongated blade having a longitudinal aperture therein; a heating element in the longitudinal aperture; and an actuator mechanism for driving the blade towar...
02/13/2007
7090111Fused loop of filamentous material and apparatus for making same
A welding apparatus that includes a first member having a first suture-contacting surface, a second member having a second suture-contacting surface, and a device for moving the first member relative to the second member to define a gap between the respective suture...
08/15/2006
7067037Modular reciprocating heat seal jaw assembly
A modular reciprocating heat seal jaw assembly is disclosed for sealing reclosable fastener strips to a web of thermoplastic film and for sealing the web of thermoplastic film into a series of reclosable bags. The jaw assembly includes first and second sealing jaws ...
06/27/2006
6871476Heat sealing and cutting mechanism and container forming apparatus incorporating the same
A heat sealing and cutting mechanism to form a heat seal and a cut across a tube of flexible packaging material includes a carrier to contact the tube. A pair of closely spaced heat sealing bands are disposed on the carrier and are energizable to form closely spaced...
03/29/2005
6629917Sealer apparatus for plastic film processing including an adjustably mounted seal bar, particularly for bag making machines
A cross sealer for a plastic bag making machine includes a frame with an upper moveable seal bar unit and an opposed lower stationary seal bar unit. The movable unit is a lightweight construction seal beam. A rotating shaft spans the cross sealer and is c...
10/07/2003
6564843Fastener tape, method of and apparatus for making fastener tape, method of using fastener tape, and reclosable bag utilizing fastener tape
A fastener tape for use in the manufacture of reclosable plastic bags is provided. The fastener tape comprises an intermediate layer and a reclosable fastener profile thereon. The intermediate layer includes three layers of co-extruded plastic, with not m...
05/20/2003
6422987Apparatus for producing recloseable bags
An apparatus is provided for producing recloseable bags (10). The recloseable opening (32) of the bags is surrounded by mutually opposite halves (20, 22) of a recloseable strip, these halves being firmly welded to mutually opposite bag walls (12, 14) and,...
07/23/2002
6422986Sealer apparatus for forming a cross seal in plastic film processing and particularly for bag making machines
A cross sealer for a bag making machine includes a frame with an upper seal bar unit and a lower seal bar unit in aligned opposed relation. One is movable seal bar unit which includes a rigid support beam of a lightweight construction and a light weight s...
07/23/2002
6416453Seal 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
6210308Apparatus and method for sealing foil material
The present invention relates to a sealing apparatus for sealing foil material, the apparatus comprising a foil conveying means and a sealing means including a sealing head which has at least one sealing position for performing the foil sealing operation,...
04/03/2001
6190296Apparatus for machining a material web
In an apparatus for machining a material web by means of a sonotrode, the pressure force of the sonotrode is determined and is used as a control signal for the advance of the sonotrode, as a result of which the nip height is set....
02/20/2001
6117059Method of manufacturing a filtration bag
The method of manufacturing a filtration bag for a liquid comprises placing two flexible thermoplastic sheets adapted to filter a liquid upon one another, and welding the sheets together along a desired seam line by vibration welding using tool means whic...
09/12/2000
6027438Method and apparatus for manufacturing a fluid pouch
An apparatus for inserting a dip strip within a flexible pouch. The apparatus has a first advance means for advancing a predetermined length of the dip strip material and a punch means for punching a hole in the material. The apparatus has a second advanc...
02/22/2000
5976300Method of sealing a port tube in a container
The present invention provides a method for connecting rounded members between planar members comprising the steps of providing a rounded member having an outer layer having a first melting temperature range and an inner layer concentrically disposed with...
11/02/1999
5964688Linear clamping assembly for bag sealing machines
A seal bar assembly which includes a support structure (21), and at least a first seal bar segment (22) and a second seal bar segment (23) mounted substantially parallel to each other on the support structure. The seal bar segments define a gap (28) there...
10/12/1999
5934048Seal assembly for easy open pouch
A pouch and a method and apparatus for forming an easy open pouch in a form-fill-seal process is disclosed. The apparatus includes a first bar; a means for cutting, housed within the first bar, the means for cutting including a main cutting blade having t...
08/10/1999
5885411Modular sealing machine
Disclosed in this description is a shrink wrap machine in which the majority of the machine's major components are modularly, and therefore detachably attached. The shrink wrap machine uses a counterweight on its sealing arm to bias the position and damp ...
03/23/1999
5865941Device for sealing plastics films
A device for sealing plastics films, particularly in batch packages (10) comprises a sealing jaw (32) and a sealing surface (33) thereon. In order to avoid the adhesion of residues of the film on the sealing jaw (32) or its sealing surface (34) during sea...
02/02/1999
5830118Packaging machine for forming free-standing pouches
Longitudinally spaced pairs of laterally spaced openings are formed in a web of material prior to the web being folded into a pouch having a gusset bottom, the holes enabling the side panels of each pouch to be heat-sealed directly together at the side ma...
11/03/1998
5772565Heat sealer
A seal assembly for packaging machines facilitates the heat sealing of layers of material at the mouth of loaded bags. An operator may insert the layers of material between a pressure pad and a seal member positioned in a spaced position. Upon activation ...
06/30/1998
5713181Carton bottom seal
A gabled carton is set forth that is comprised of a top gabled portion, a bottom gabled portion and a bottom fin extending from the bottom gabled portion. The bottom fin has a distal seal extending lengthwise along the bottom fin at a location between the...
02/03/1998
5705026Modular sealing machine
This invention is a modular sealing machine. It is comprised of a base unit to which parts may be modularly added to customize the machine....
01/06/1998
5662575Method and apparatus for continuously forming bags
A method for continuously forming bags comprising continuous steps of heat-sealing a continuous tubular plastic film, such as a continuously formed inflation tube or the like, widthwise at given positions thereof while the tubular film is being conveyed, ...
09/02/1997
5620542Apparatus and method for sealing valved bags transported by a conveyor
A method and apparatus for sealing a valved bag transported by a conveyor. The valved bag has a body with a longitudinal axis, a center of gravity, and a sealable valve. At least a portion of the sealable valve protrudes from the body in a substantially p...
04/15/1997
5588944Apparatus for welding the tubular sections of sacks, bags or the like
The invention concerns an apparatus for welding the tubular sections of sacks, bags or the like, having a rotating drum and with welding stations arranged on the periphery of the drum which rotate, fixed in position, with the drum, wherein the welding sta...
12/31/1996
5575880Method for stamping heat-sensitive sheets
A method for forming an item by partially fusing selected portions of two sheets together. A non-heat-sensitive barrier sheet is inserted between two heat-sensitive sheets. The sheets are stamped with a die to fuse portions of the heat-sensitive sheets to...
11/19/1996
5571370Apparatus for heat-sealing thermoplastic materials
An apparatus for heat-sealing thermoplastic materials includes a sealing jaw with a groove in which a thermal strip is mechanically anchored. The flange portions of the jaw projecting on either side of the groove are compressed towards one another and tow...
11/05/1996
5398486Tubular bagging machine for the continuous manufacture of bags having folded sides
A tubular-bag packaging machine having at least one pair of cross-sealing jaws (25) which are supported on a holding device (15) movable vertically back and forth by means of a connecting rod (14) as well as horizontally through a four-bar mechanism compr...
03/21/1995
5282778Method for making bags of synthetic material
A method for making bags of synthetic material in which a tubular foil web of synthetic material is advanced in steps corresponding to the length of one bag. A continuously heated pair (11) of welding jaws grips the tubular foil web (3) of synthetic mater...
02/01/1994
5230688Servo driven components of a bag machine
The invention has to do with the modification of well known heat sealing bag machines to increase the production capability of the machines. The use of servo drives for selected components of the bag machine permits the reduction of film acceleration and ...
07/27/1993
5107659Method of and apparatus for continuous bakery product wrapping
An apparatus for continuous bakery products includes a carriage having opposed sealing jaws. Upper and lower webs of wrapping material extend between the jaws of the carriage along a bakery product path. Bakery products to be wrapped are advanced along th...
04/28/1992
5094657Method and apparatus for continuously forming and sealing low density polyethylene bags at high speed
A high speed method of manufacture of filled polyethylene pouches from polyethylene film comprising the steps of folding the film and causing it to move in folded flat form transversely sealing the film at longitudinally spaced intervals forming a continu...
03/10/1992
5088971Method of making protruding end stops for plastic reclosable fastener
A method is disclosed for making end terminations for a plastic reclosable fastener or zipper, which incorporates a stop for the zipper slider wherein the zipper profile is cut apart with a hot knife which forces the melted material into cavities forming ...
02/18/1992
5080747Heat sealing mechanism with linearly movable seal bars
Heated seal bars are located on opposite sides of an elongated strip of heat sealable material adapted to be advanced with a step-by-step motion. When the strip dwells, the bars are shifted linearly inwardly into engagement with the strip to form a heat s...
01/14/1992
5019027Method and apparatus for sealing reclosable flexible containers without spot sealing
An apparatus and method for manufacturing reclosable thermoplastic containers which eliminates the need for spot-sealing zipper closures or zipper closure elements to a web of thermoplastic film prior to forming side seals and zipper end seals is provided...
05/28/1991
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