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...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!

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Class 493/190 - And cooling


Subclass of Class 493 - Manufacturing container or tube from paper; or other manufacturing from a sheet or web
Definition: Method or apparatus combined with or comprising lowering
No. of patents: 31
Last issue date: 06/05/2007


NumberTitleIssue Date
7226649Laser weldable flexible medical tubings, films and assemblies thereof
The present invention provides a tubing assembly having a sidewall having a first layer. The first layer is fabricated from a first polymer blend comprising a first component of a material not thermally responsive to laser beam and selected from the group consisting...
06/05/2007
7147597Method of fabrication of gusseted flexible bottle with fitment
A method for fabricating a fitmented flexible bottle is disclosed which involves feeding webs including one or more gussets, creating perimeter seals around only the top portion of the bottle, inserting the fitment from the input end of the machine in the direction ...
12/12/2006
7065937Method of manufacturing and filling stand-up bags
A standup bag for granular products or the like and a method of manufacturing the bag. The standup bag is manufactured from an extruded heat scalable material and includes both an integral handle and a perforation to facilitate opening and pouring out the contents o...
06/27/2006
7021354Connector having air conducting structure and sensor system including the connector
Air conducting connector with simplified wiring layout and water-proofing. Connector 2 has air conduction path 3, having a first opening 3a and a second opening 3b. A heater wire 5, air conducting wire and terminal
04/04/2006
6996951Flexible multi-compartment container with peelable seals and method for making same
A flexible container is provided for the storage and administration of medical solutions. The container incorporates a transparent front sheet made from a planar layer of a polymer and an opposing rear sheet. The rear sheet is made from a planar laminate layer. The ...
02/14/2006
6599225Method of closing the bottom of a container
A method and apparatus for forming a bottom closure of a container employing multiple assembly lines and including a universally foldable seal fin as a part of the bottom closure. A novel blank for the container is disclosed....
07/29/2003
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
6524434Tubular device in a bagging machine
A tube-forming apparatus in a bag-forming, filling, and sealing machine has a longitudinal seam heat-sealing device for connecting edge regions of the packing material belt that are placed against each other inside surface to inside surface. In order to a...
02/25/2003
6319184Apparatus and process for producing cold seal in plastic bags
A process of cold sealing two layers of plastic film material together is used as part of the structural element of a plastic bag made from plastic film. The bag has a closed bottom, a continuous closed periphery, and an open top. The improvement provides...
11/20/2001
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
5540644Packing bag for light sensitive materials and manufacturing method therfore
A bag for packing a light-sensitive material is disclosed. The bag has an outermost surface and an innermost surface and is essentially consisting of a material for making the bag which comprises not less than 70% by weight of polyethylene and 1 to 10% by...
07/30/1996
5529659Machine and associated apparatus for attaching zippers to plastic bags
The two separable elements of a conventional plastic zipper are advanced through a zipper guide slot from the inlet to the outlet end of a machine, simultaneously with two sections of a plastic film or web, one section of which overlies one of the zipper ...
06/25/1996
5484375Method & apparatus for sealing fitment tubes into pouches
The present invention relates to a method of heat sealing fitment tubes to pouches or bags of flexible film using a pair of hot bars. Also disclosed is the use of warm bars or cold bars to cool the hot bar seal. An apparatus for producing pouches with fit...
01/16/1996
5324233Method and apparatus for sealing fitment tubes into pouches
The present invention relates to a method of heat sealing fitment tubes to pouches or bags of flexible film using a pair of hot bars. Also disclosed is the use of warm bars or cold bars to cool the hot bar seal. An apparatus for producing pouches with fit...
06/28/1994
5021039Apparatus for manufacturing air cushion dispatch packages
An apparatus for manufacturing air-cushion dispatch packages, the apparatus comprising an unwinding mechanism for paper webs and air-cushion foil webs. The apparatus introduces air-cushion foil webs between the paper webs and seals each paper web to a foi...
06/04/1991
4927474Process and apparatus for sealing thermoplastic plies in laminated sheets having thickened sections
A process and apparatus for sealing plies of thermoplastic material included in laminated sheets having thickened sections in a manner such that strong side seals result with substantially no delamination of one or more plies of a laminated sheet comprise...
05/22/1990
4838977Process and apparatus for making plastic carrying bags or sacks
To make plastic carrying bags or sacks, sections are cut or are severed by hot wire welding from a gusseted tubular film by a formation of transverse seam welds and transverse severing cuts or by hot wire-welded transverse seam welds. At least in their bo...
06/13/1989
4822327Jacket for a flexible magnetic disk and production of the jacket
The blanks punched out from a film web and folded to form the jacket are then heated for a short time and cooled again in order to eliminate stresses in the jacket material which give rise to deformations and are also produced by the action of heat during...
04/18/1989
4662978Packed bag transverse sealing mechanism
This invention relates to a transverse sealing mechanism for use in producing bag-packed products by packing products in tubular film. The transverse sealing mechanism comprises compression-and-heat sealing means and compression-cooling and compression-cu...
05/05/1987
4650451Intermittently translating draw tape stretched between nip rolls
A thermoplastic tape having thick and wide end portions with a relatively thin and narrow stretched central portion between them is produced by a first pair of nip rolls running at a slow speed, and a second pair of nip rolls running at a higher speed. Th...
03/17/1987
4642084Plastic bag making machine
A machine for making plastic bags, such as trash or garbage bags, includes a rotary sealing drum of variable diameter, the drum including one or more sealing bars for cross-sealing a flattened plastic film tube passing through the machine. A blanket tensi...
02/10/1987
4627829Centerfold forming apparatus for a disk envelope
Apparatus for forming a disc envelope from a prepunched, flexible, plastic blank having two sections connected at the heads thereof and containing a drive hole at the same location in each section. The drive holes are located on respective hubs which are ...
12/09/1986
4394204Method for heat sealing
A method and apparatus for hermetically heat sealing flexible containers, and particularly pouch-like containers, is disclosed. A filled pouch is positioned between a pair of heated bars, with the bars being constructed and arranged to maintain a gap ther...
07/19/1983
4340558Scrim reinforced plastic film
Process for forming a scrim-reinforced film wherein a molten, film-forming plastic, such as polyethylene, in a high state of fluidity is fed onto an unsupported scrim and solidified by cooling to produce a scrim at least substantially completely enclosed ...
07/20/1982
4338082Positioning mechanism for support arm of heat sealing and cooling devices
This relates to a drive system for selectively positioning a heat sealer and a cooler relative to mandrels supporting bags or pouches, which mandrels are carried by a turret and indexed thereby. A simple oscillating shaft driven by a cam oscillates a doub...
07/06/1982
4198260Apparatus for severing a stack of filmlike sections and simultaneously forming them into blocks
A stacking, severing and block-forming machine for sheet articles such as flattened plastics bags comprises a stacking station at which the articles are superposed against a displaceable abutment, a mechanism for compressing each stack, a conveyor mechani...
04/15/1980
4198259Apparatus for the manufacture of bags
Apparatus for the manufacture of bags from a web of plastic material while applying the principle of loop formation, comprising a plurality of supports, traveling in a first endless path said supports carrying and holding the web by means of suction, furt...
04/15/1980
4108712Heat sealing machine with cooling means
Heat sealing apparatus is provided in which a heat seal head defines longitudinal slots which underlie a wire heating element and communicate with a cooling fluid path to provide rapid cooling to the heating element. The longitudinal slots have a width th...
08/22/1978
4067761Plastic web sealing apparatus using hot air heated sealing roller
The overlapping edges of a continuously formed tubular configuration of plastic web are fused together between a backup ring and a sealing roller continuously heated by hot air directed against the periphery of the roller. When the heated roller is presse...
01/10/1978
4041846Method of making container strips
Detachable container strips and method of making and using the strips are disclosed. The container strips are connected in side-by-side relationship by narrow thin bridges with adjoining container portions of the strips in registry with each other lengthw...
08/16/1977
3983794Multistep transverse welding process for producing bags from plastic sheets
A process and a device for producing bags from a strip of thermoplastic material wherein mated layers of foil strip are supplied to serially arranged bonding devices to provide bonded seams extending over the width of the layers at specific intervals corr...
10/05/1976
 
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