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Class 493/202 - Including work advance during heat sealing


Subclass of Class 493 - Manufacturing container or tube from paper; or other manufacturing from a sheet or web
Definition: Method or apparatus wherein the thermal level of the workpiece
No. of patents: 26
Last issue date: 03/31/2009


NumberTitleIssue Date
7510515Packaging bag and method for manufacturing same
A packaging bag comprises a main bag body and a framework member. The main bag body is made of plastic film material through a main bag body formation process. The main bag body has an opening and a plurality of heat sealed portions. The framework member is disposed...
03/31/2009
7410452Pouch with a straw hole and method of manufacturing the same
A method of manufacturing a pouch with a straw hole is provided that includes the steps of feeding a front-side film forming one panel of the pouch and a back-side film forming an other panel, from a roll of material, and punching a straw hole in one panel of the po...
08/12/2008
7117657Delivery point packager takeaway system and method
An apparatus is provided for packaging and taking away packaged sequenced product such as mail pieces. The apparatus includes a packaging device having an output end, and adapted to package sequenced products. A clamping device is adjacent to the output end of the p...
10/10/2006
7011615Method for making a multicompartment thermoplastic bag
A method of making a multicompartment reclosable thermoplastic bag having at least two compartments is disclosed. Each compartment has a top, a bottom, two side edges, and two opposing sidewalls joined at the side edges and the bottom. Each compartment has a closure...
03/14/2006
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
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
6139479Apparatus and method for manufacture of containers of variable length
An apparatus for manufacturing containers or bags includes a sealer that produces seals on a moving film. These seals are spaced at intervals that determine the length of the containers. An operator can change the desired container length while the film i...
10/31/2000
6030329Machine for making disk jackets
An automated machine for making standardized disk jackets of consistent quality from non-woven cloth and polypropylene materials includes a machine table, and a raw material mount, a feed roller unit, a first cutter unit, an ultrasonic closure unit, a sec...
02/29/2000
5976299Method for making a non-peelable, sterilizable bag
A method for making a non-peelable, sterilizable receptacle having a low particulate count for receiving articles for storage in pharmaceutical intermediate processing. This method involves providing a continuous first web of polyolefin film, providing a ...
11/02/1999
5957821Apparatus for cutting a strip-type packaging
An apparatus for the dimensionally accurate cutting of a product carrier (1) which is in the form of a strip, is transported further in a cyclic or continuous manner in the longitudinal direction and has cells which are arranged one behind the other and a...
09/28/1999
5861078Method and apparatus for detecting a seal on a plastic bag
A method and apparatus for registration of a seal to a perforation on a plastic bag include a drum for forming a seal on a continuous plastic film and a downstream perforator/cutting station for forming a perforation on the film with respect to the locati...
01/19/1999
5738618Blanket sealing bag machine
There is provided a blanket sealing bag machine having a variable diameter sealing drum comprising a plurality of spindles disposed at a first end of an axle and a like plurality of spindles disposed at an opposing end of the axle, the plurality of spindl...
04/14/1998
5690774Apparatus and method for maintaining the confidentiality of printed information
An apparatus and method for maintaining the confidentiality of information contained in a printed document is accomplished by enclosing the document in an envelope, or similar enclosure, before the document is discharged from the apparatus. The apparatus ...
11/25/1997
5660674Method and apparatus for registration of a seal and perforation on a plastic bag
A method and apparatus for registration of a seal and perforation on a plastic bag include a drum for forming a seal on a continuous plastic film with respect to a registration mark on the film and a perforator/cutting station for forming a perforation on...
08/26/1997
5571361Apparatus and method for fabricating breather bags
An automated continuous heat sealing apparatus and method are disclosed having dedicated operating stations for fabricating continuous hermetically sealed tubular structures and individual bags from rolls of continuous webs of polymer material, the first ...
11/05/1996
5536356Apparatus and method for fabricating breather bags
An automated continuous heat sealing apparatus and method are disclosed having dedicated operating stations for fabricating continuous hermetically sealed tubular structures and individual bags from rolls of continuous webs of polymer material, the first ...
07/16/1996
5518559Method and apparatus for registration of a seal on a plastic bag
A plastic bag making machine includes a cylindrical drum with a variable diameter. A plurality of seal bars define the circumference of the drum, and are substantially parallel to the drum's rotational axis. A controller determines the distance between re...
05/21/1996
5328438System and method for manufacturing sealed packages
A system and method for constructing sealed printed packages and one-piece mailers provides fixedly applying printing toner to predetermined locations upon a first part of a face of a printable sheet. The sheet is then folded so that a second part of the ...
07/12/1994
5213560System and method for manufacturing sealed packages
A system and method for constructing sealed printed packages and one-piece mailers provides fixedly applying printing toner to predetermined locations upon a first part of a face of a printable sheet. The sheet is then folded so that a second part of the ...
05/25/1993
4934993Bag making apparatus with automatic compensation system
A machine for making plastic bags from plastic film utilizes a rotatable drum having an adjustable diameter. The drum is constructed of a plurality of slats and includes a gear mechanism adapted for infinite variation of the drum diameter between a first ...
06/19/1990
4881933Draw tape bag forming method and apparatus
A draw tape bag is formed from a plastic web. An edge folding unit, a notching unit, a tape inserting unit, a heat sealing unit and a web folding unit form a compact continuous line in a rectangular path. The hem folder includes a L-shaped plate within th...
11/21/1989
4735675Heating device for sealing material to effect different bond strengths
The present invention is used to heat seal seams, and the like, of item holding means such as plastic bags holding loose fill product like beans, hard candy, pretzels, potato chips, etc. The heating station of the present invention has at least two indepe...
04/05/1988
4690722Ultrasonic apparatus for joining and severing sheet material
An apparatus for joining sheet material and cutting joined material comprises a set of drums rotating against one another. A first drum is provided along its surface with a raised pattern serving as welding surfaces when operating in conjunction with one ...
09/01/1987
4664649Method and apparatus for producing drawstring bags
A method and apparatus for forming draw tape bags wherein the bag material moves continuously during the manufacture, except for the last step. A roll of folded web is provided, and the loose edges are turned inwardly to form upper hems for the bags. The ...
05/12/1987
4333790Rotary bag sealing and perforating machine
A web of flattened, tubular, heat-sealable bag material travels above and at the speed of a moving belt. Above the belt is a seal shaft which rotates a heated seal bar. The working edge of the seal bar may be adjusted inward and outward relative to its sh...
06/08/1982
4019947Multipurpose sealing and severing method and mechanism
A multipurpose sealing and severing mechanism for a bag machine capable of providing one or more seals in thermosealing wrapping material, and severing or perforating the material adjacent the seal area. The mechanism may readily be adapted to produce sid...
04/26/1977
 
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