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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7404789 | Machine 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 |
| 7401450 | Infusion bags, especially for tea, and a method of closing an infusion bag with a string This invention concerns an infusion bag, especially for tea, which has a top part with folded down corners and a middle part folded over it, to which a string with two free ends is attached that goes from one side of the top part through a hole in the folded down pa... | 07/22/2008 |
| 7371297 | Ultrasound unit for sealing lengths of filter paper A unit for sealing filter bags for products for infusion comprises at least: a shaped revolving roller (2) with circumferential and radial tracks (3, 4) that act as guides to make longitudinal and transversal contact seals on a web (5) of filter... | 05/13/2008 |
| 7299600 | Device for sealing lengths of filter paper A device for sealing filter bags for products for infusion, where each filter bag is made from a flat web (1) of filter paper and has applied to it a tag (1b) and a tie string (1a) connecting the tag (1b) to the filte... | 11/27/2007 |
| 7287359 | Tag lifter plate A clipper has a punch movable in a reciprocating path from a retracted position to an extended position, a clip rail for feeding a clip into the reciprocating path of the punch, a tag loading window oriented to hold a tag in the reciprocating path of the punch, a di... | 10/30/2007 |
| 7204794 | Machine 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 |
| 7188458 | Machine and method for making filter bags of tetrahedral shape for infusion products A machine (100) for making filter bags (1) of tetrahedral shape for infusion products (P) comprises a production line (L) defined by a series of operating stations (50, 9, 10, 14, 11, 12, 13) where filter bags (1) made from a continuous f... | 03/13/2007 |
| 7124556 | Device for bagging dry ingredients A device 10 for bagging dry ingredients, wherein a packaging mechanism 16 is integrally disposed under a weighing mechanism 13 for stored dry ingredients 12 and through a common frame 18. The weighing mechanism 13 comprises ... | 10/24/2006 |
| 7028452 | Packaging device for fitting and heat-shrinking packaging film A packaging device includes a film fitting mechanism, a film shrinking mechanism and a controller. The film fitting mechanism fits a tubular heat shrinkage film over a film cylinder and moves the film a distance along the cylinder and cuts a length of the film off. ... | 04/18/2006 |
| 7021025 | Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag A filter bag for containing a substance for infusion in a liquid comprises: a containment chamber with compartments for doses of the substance, sealed by top and bottom joins; a tag for picking up the bag; and a section of thread, wound around the outside of the con... | 04/04/2006 |
| 6993886 | Method for sealing zipper assembly to bag making film at three or more points A method for sealing a zipper assembly to bag making film at three or more points. The zipper assembly comprises a short zipper flange and a long zipper flange. The short flange is joined to one wall of the package while the long flange is joined to both walls of th... | 02/07/2006 |
| 6948292 | Machine for making a filter bag containing a substance for infusion with the gathered thread attached to the pick up tag A machine (100) that makes filter bags (1) containing a product for infusion in a liquid, comprises the following, arranged in succession: a unit (53) for preparing and feeding the materials used to make the filter bags; and at least: an assembl... | 09/27/2005 |
| 6807793 | Apparatus for preparing and feeding the materials used to make a filter bag for infusion products An apparatus for preparing and feeding materials used to make a filter bag for infusion products includes a revolving wheel having mechanisms arranged in succession thereon that are used for: forming filter bag pick-up tags and arranging them in order; feeding a con... | 10/26/2004 |
| 6746699 | Infusion bag with string This invention concerns an infusion bag, especially for tea, which has a top part with folded down corners and a middle part folded over it, to which a string with two free ends is attached that goes from one side of the top part through a hole in the folded down pa... | 06/08/2004 |
| 6725628 | Process for the continuous production of beverage filter bags This invention relates to a process for the continuous production of beverage filter bags, especially tea bags with a hanging strip made from a carrier sheet material and with at least one pocket which consists of a filter material and is closed on all sides, contai... | 04/27/2004 |
| 6711876 | Apparatus for attaching a tag and a thread to a filter bag This invention describes a two-wheeled apparatus with rotating translators means and multiple pincers for the packaging tag connected to the terminal free end of a handling thread, whose other free end is fixed to the bag itself. ... | 03/30/2004 |
| 6688079 | Method for manufacturing flexible packages having slide closures Horizontal form fill seal apparatus for making flexible packages with slider fastener closures is provided. A fastener track is applied in-line with a plastic web and is bonded thereto at the same time that a peel seal is formed. All package components ar... | 02/10/2004 |
| 6675553 | Method and device for stacking and packing infusion bags This invention concerns a method and a device for stacking and packing groups of infusion bags, especially for making tea, whereby in continuous production infusion bags arranged one after another in a series in a strand are separated, their speed of move... | 01/13/2004 |
| 6668518 | Machine for making filter bags for products for infusion A machine which makes filter bags from flat tubular envelopes for products to be infused includes a thread applying station having a first drum rotating in a defined direction and a plurality of seats to position and pick up of seals, continuous thread an... | 12/30/2003 |
| 6637175 | Method and machine for wrapping infusion bags in outer envelopes A method and related machine for wrapping filter-bags (1) in sealed outer envelopes (S) comprises the following steps: feeding single, plane sheets (6) to a station (7) for wrapping each sheet (6) over a corresponding filter bag (1); folding the sheet (6)... | 10/28/2003 |
| 6571537 | Method and device for rejecting infusion bags in manufacturing machine A method and a device for rejecting a defective filter bag for infusion products in a manufacturing machine are disclosed. When a defect or fault in the filter bag is detected by sensors while the filter bag is being completed, the end portion of the defe... | 06/03/2003 |
| 6499273 | Machine for attaching a tag to an infusion bag using an intermediate knotted thread An improved machine (1) for making filter bags (2) containing a product for infusion, with a pick-up tag (3) connected to the top (12) of the filter bag (2) by an intermediate thread (5), comprises a wheel (6) which rotates with a stepping motion about it... | 12/31/2002 |
| 6453639 | Machine for making filter bags for products for infusion A machine for making filter bags for products for infusion comprises a first wheel forming a station for winding a thread with pick-up tab around the filter bag, means for positioning and guiding the thread with pick-up tab relative to the filter bag oper... | 09/24/2002 |
| 6389781 | Two-lobed filter bag for products for infusion In a two-lobed filter bag for products for infusion, the end of a thread connecting the filter bag to a pick-up label, consisting of a length of thread, is attached to the corresponding lobe, defining a loop, that is to say, a stable, extensive contact su... | 05/21/2002 |
| 6216620 | Method and apparatus for high-speed lacing of a teabag An apparatus for high speed attachment of a cord to a piece of receiving material is characterized by one or more pins which engage the cord, pierce the receiving material and draw the cord through the receiving material from the first side to a second si... | 04/17/2001 |
| 6050059 | Packaging apparatus The packaging apparatus for bags containing products for infusion envisages a plurality of stations located one after another along a feed line and used first to continuously cut successive individual pieces of fabric from a continuous strip of fabric, th... | 04/18/2000 |
| 6000201 | Device for transferring filled tea bags from a single track tea bag packaging machine to a processing machine A transferring device for transferring filled tea bags from a single track tea packaging machine to a two-track processing machine has a pivoting device with a pivot arm and a tea bag receptacle for receiving a vertically positioned tea bag. The pivoting ... | 12/14/1999 |
| 5979144 | Packets and their manufacture A process and apparatus are described for producing drawstring packets. The packets are produced by forming thread loops (L) with tags (T) attached to their ends and placing the packet web material (W) onto the portions of a the loops further from the tag... | 11/09/1999 |
| 5951452 | Method and apparatus for the manufacture of infusion packages Two continuous travelling webs (1, 2) of porous material are provided for forming the eventual infusion packages. The lower web (2) is dosed with measured amounts (3) of infusible substance, such as tea, on its upper surface at spaced intervals by the dos... | 09/14/1999 |
| 5893256 | Packaging apparatus A packaging apparatus for making two-lobed tea bags with squeeze feature envisages a consecutive series of stations located along a feed line and used to make a continuous tube of heat-sealable filter paper with a longitudinal center line and including in... | 04/13/1999 |
| 5878550 | Packets and their manufacture Infusion packets have envelopes of heat-sealable material with a looped thread within the packets to wring moisture from the packet in use. A central part of the thread loop is held in a widened region of one edge seal while the ends of the loop project t... | 03/09/1999 |
| 5873216 | Method and apparatus for the production of tagged packets A method and apparatus are provided for assembling together tags (6), thread (8) and a web of envelope material for producing tagged packets. The tags are held on spaced seats on the periphery of a rotary carrier (2) and the thread is laid over the carrie... | 02/23/1999 |
| 5870880 | Machine for providing infusion bags with finger tab labels attached thereto by interconnecting threads and labeled infusion bags produced thereby Filter bags containing a substance from which to prepare an infusion are fashioned from tubular blanks of filter paper having an elongated appearance, each one filled with measured and separate quantities of the substance distributed along its length, whi... | 02/16/1999 |
| 5871789 | Machine for making complete tea bags for infusion in a liquid in which the infusable product is contained in a filter bag made of heat-sealed, porous material A machine and process for making complete tea bags comprising a filter bag and thread for holding the filter bag. The machine comprises a continuously turning wheel, whose lateral surface has pins which can move from a rest position, where they are retrac... | 02/16/1999 |
| 5865924 | Heat sealing of thread to a web A tagged packet carries a tag which is attached to the main body of the packet by a thread. The thread comprises polypropylene so as to be attachable by heat sealing to the body. The body is made up of layers of sheet material also comprising thermoplasti... | 02/02/1999 |
| 5863575 | Infusion packets Packets containing a flowable material are provided with a draw-string or thread to squeeze the packet contents. The packet envelope is formed from a doubled-over web which gives the packet a folded-over edge and which encloses an intermediate portion of ... | 01/26/1999 |
| 5852917 | Method of manufacturing double-chambered infusion bags by folding A tubular blank of filter paper containing measured and separate quantities of tea, or a similar infusionable substance, is pleated and folded so as to obtain a bag with two envelopes by a method that includes the steps of advancing blanks singly and in s... | 12/29/1998 |
| 5802820 | Apparatus for obtaining the uniform distribution of a cohesionless substance contained within a bag Between a machine that manufactures bags of variable volume containing cohesionless material (exemplified by tea bags), and a packing machine which packs the bags as stacks, an indexing rotor with pockets in its outer periphery acts, in cooperation with a... | 09/08/1998 |
| 5797244 | Method and device for transferring filled tea bags from a single tea bag packaging machine to a processing machine A method for transferring filled tea bags from a single track tea packaging machine to a two-track processing machine includes the steps of feeding tea bags in single file to a transfer station and positioning each tea bag individually therein. The tea ba... | 08/25/1998 |
| 5797243 | Method for closing a filter bag for infusible products and for connecting a tagged thread thereto A single dose filter bag for infusible product is closed by folding a flap made in the upper part of the filter bag, attaching a connecting thread to the filter bag and to a pickup tag by first and second terminal portions respectively of the connecting t... | 08/25/1998 |
