Abstract: 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 thermoplastic material to allow the body to be closed by heat seals. The thread is secured to the face of the body at one edge at the same time as that edge is heat sealed and the heating for the thread seal is applied from the opposite face of the body whereas the adjacent regions of edge seal spaced from the thread has the heating applied through the first face. This arrangement gives closer control of the different conditions required for securing the thread and for sealing together only the sheet material of the body.

Abstract: Tags and thread are assembled together for the manufacture of tagged articles such as infusion packets in which each tag is attached to the packet by a length of thread. The thread is held in a looped form between the tag and the packet before use. For the assembly of the tags and thread and to increase the length of thread attaching each tag, means are provided for forming a doubled-over loop that can be trapped between the tag and the packet.

Abstract: A dual compartment infusion packet has the compartments directly secured to each other at one end of the packet and separated by a V-fold of the packet material at the other end. A suspension thread has an intermediate portion lying within the fold and end portions extending therefrom through attachment means at the other end of the packet. The end portions are displaceable in the attachment means so that when tensioned they contract the packet to squeeze out liquid held in the packet after an infusion process.

Abstract: The invention provides an improved infusion bag, for containing tea, coffee or the like. The bag (10) incorporates means for compression, such as string (12) which is attached to bag (10), for example at its base (14) by knot (16). The bag of the invention may be single chambered or double chambered, inter alia. The invention also provides a method of manufacturing the bag.

Abstract: This invention solves the problem of disposal of used coffee membrane filters and wet coffee grounds neatly with decreased probabilities of spilling coffee grounds on the floor, table or dumping them loose in a trash container. Thus, several embodiments provide different ways to close and secure the open top of the filter membrane after insertion of coffee grounds into the filter for making coffee, thereby to provide a closed unit that can be disposed of without spilling the beans. Thus, drawstrings or adhesive tabs may be provided in the rim of the filters for closure, or additional flaps or cover sheets may be attached to the rim of the filter to close the open filter mouth.

Abstract: Twin compartment packets, e.g. tea bags, are formed with the compartments connected at the heads of the packet and optionally at the tails. The packets are produced from a pair of compartmented tubular webs that are brought together with the compartments in register, the webs then being interconnected at the compartment end seals and severed at those seals to form the separate packets. Apparatus for performing the process deposits doses of tea at spaced intervals onto the two separate webs before forming them into the tubular compartmented webs, brings the compartments of the two webs into register, interconnects the registered compartments, and separates the interconnected compartments into individual packets while the web advances continuously through the apparatus. The process is capable of high production rates because the webs are able to move through the successive stages at a uniform speed.

Abstract: A tea bag with a squeezing device is provided and consists of a string attached at one end to an infusion bag with a quantity of ground tea leaves sealed therein. A cover being of two panels is joined together along a fold line and has a hole at the center of the fold line. The string passes through the hole with a tag attached to the other end of the string. The panels of the cover can be used to squeeze the infusion bag to extract infusion liquid from the bag and as a disposable structure therefore after said infusion bag is used.

Abstract: The invention is a system including a disposable cartridge for use with a drip type beverage brewing machine. The cartridge comprises a first cup, which has an open first end and a substantially closed second and, the second end being penetrated by at least one port. A filter member shaped substantially congruent with the first cup and coextensive with the first cup, has an open end coincident with the open end of the first cup and a closed end spaced away from the closed end of the first cup. A closure member has an open end and a substantially closed end, is concentric with and secured to and encloses the first cup. The closed end closes the open end of the first cup, and the closed end of the closure member is penetrated by a plurality of holes. A shallow receptacle adjoins the closed end of the closure member and is in fluid communication with the penetrating holes.

Abstract: Disclosed is a beverage infusion device including a percolator within a gas-liquid chamber permeable to air and water containing an infusible, insoluble dry beverage substance such as coffee particles. When the beverage infusion device is repeatedly immersed in and removed from water, water enters into the gas-liquid chamber through the percolator at a point above the coffee particles, drains over and through the coffee particles and out of the gas-liquid chamber. A disposable, miniature percolator for brewing a single cup or limited number of cups of a hot beverage such as coffee is thus provided.

Abstract: An improvement in tag-like grasping means located at the end of retrieval means for infusion bags including a shaped slit for forming an adjustable hook-like portion to clip the grasping means to the rim of substantially any container utilized for the infusion process. The shaped slit has a lower portion and an upper portion. The lower portion extends upwardly from an open end in the bottom edge of the grasping means adjacent the point of affixation of the retrieval means thereto to an upper end, and the upper portion extends from the upper end of the lower portion transversely across the grasping means above the point of affixation of the retrieval means to the grasping means to a closed end.

Abstract: A package for the infusion of tea, coffee, or other substances comprising a cover having a central panel against which an infusion bag is hingedly attached and a pair of side panels extending laterally from each side thereof to form wings adapted to engage the outer surface of a cup in which the infusion process takes place at laterally spaced positions to give greater positioning stability and convenience in maniuplation and disposal to such package.

Abstract: A filter bag for insusion products is provided having multiple successive container pockets or lobes, each for infusing a corresponding dose or unit quantity of product. The bag structure permits two usage layouts. The flat layout form is for packaging in lots for sale with said lobes superimposed or folded one over the other or side by side. The other layout form has the lobes opened out or distended following the pick up and pull of the corresponding tag (label) ending in the thread for handling the filter bag at the time of usage. The thread has a length equal to that of the bag as laid out for use with the pockets or lobes distended. The thread is fixed to the opposing ends of said bag by means of a piece of heat weldable material together with the non heat weldable paper tag (label) adjacent to one of said opposing ends.

Abstract: A beverage infusion device for preparing a beverage such as coffee includes a gas-liquid chamber permeable to air and water which contains an infusible, insoluble dry beverage substance containing edible, soluble food solids, such as coffee particles, and a carbon dioxide source which releases carbon dioxide when immersed in liquid, such as water. When the infusion device is immersed in water, the carbon dioxide source, preferably situated beneath the coffee particles, releases carbon dioxide. The carbon dioxide bubbles up through the coffee particles, momentarily suspending and agitating the coffee particles. Maximum contact between water and coffee particles is achieved and the edible, soluble food solids are quickly extracted from the coffee particles to form a hot beverage.Also disclosed is a beverage infusion device including a percolator within a gas-liquid chamber permeable to air and water containing an indusible, insoluble dry beverage substance such as coffee particles.

Abstract: Roast ground coffee or the like is layered and confined between water permeable walls while brewing in a cup or mug from which it is to be consumed. The walls with coffee layered between may be wound, folded or stacked to form the desired packet. The walls include a filter material and may also include a reticulated heat sealable sheet next to the coffee. Separators between coffee confining walls promote water circulation and speed brewing.

Abstract: A coffee bag is provided and consists of a housing fabricated out of two sheets of water-permeable paper material heat sealed around its perimeter for holding a portion of very fine ground coffee therebetween for making an individual cup of coffee. In a modification the housing is cylindrical and expandable when inserted within hot water and contains a ground coffee agitating device built into the housing.

Abstract: A filter bag containing a quantity of finely grounded coffee beans, the bag being attached by a string to a tag so that the bag can be dipped in a cup of boiling water so to make a coffee beverage.

Abstract: An infusion package, such as a tea bag, having porous side panels and an open mouth through which material may be inserted. Edges of the package at the mouth are foldable over each other to close the mouth. A string on the folded over portions is extended through an aperture remote from the mouth and serves to inhibit unfolding.

Abstract: An improved infusion bag for preparing an infusion of tea or other infusible substances, comprising a sachet member of liquid-permeable sheet material and a pull string. The pull string is joined at the upper apex of the sachet. At least one ventilative slit is provided below the joint point of the string and the upper apex of the sachet. The sachet can be folded into a generally tetragonal shape. After steeping, and by the action of withdrawing and submerging, the infusible substance swells and sinks to the lower apex of the sachet. The improved infusion bag makes the infusible substance less compacted and overcomes the constraint due to the capillarity of the liquid-permeable sheet material itself and the interface capillarity of the mass of the infusible substance. This gives a higher quantity and higher concentration of infusion liquor.

Abstract: A filter-bag for infusion products, such as tea, camomile, or the like, formed of a blank of filter paper tape coated with a heat-sealable layer of thermoplastic material, longitudinally folded into two halves so that said layer remains in the inside and heat-sealed so as to define an infusion product containing space. A tag is attached by a thread of natural fibers retained at one end thereof between two heat-sealed edges of the bag and wound around the latter.The thread is fixed on the outside of the bag by means of heat-sealing at several points.

Abstract: An infusion package that has a natural, expanded, unflattened or three-dimensional condition is folded to a flattened configuration to pack in quantity. The expanded condition gives greater internal volume by which infusion is improved and quickened. A pull string, affixed near the flattening folds, unfolds the package from its flattened configuration. To make the package, a tube can be formed into a generally tetrahedral shape by forming seams across it, each at 90.degree. to the preceding seam, severing the package so formed, and folding inward across one end seam to the tetrahedron to effect the flattening.

Abstract: An infusion bag is disclosed wherein granular coffee is contained in a water-permeable portion which is attached to a water-reservoir portion whereby water passes downwardly in a positive manner from the reservoir into the receptacle to contact the granules and then the coffee brew is passed outwardly from the receptacle. Strings attached to the receptacle permit positive opening and closing of the receptacle with positive water action through the bag. The infusion bag is particularly suited to brewing coffee from ground coffee beans.

Abstract: A packed infusible bag for an infusible substance with an inner bag, which contains the substance, made of a liquid-permeable material, a string secured to the head of the bag and a packing envelope made of a liquid- and air-impermeable material surrounding the bag on all sides, with the envelope having an edge part formed of two sealed material layers enclosuring the free end of the string. The edge part bounds a hollow space of the envelope in which the bag is received, and a tag is connected via the string with the head of the bag for handling of the bag and the tag is separable from the remainder of the envelope along a separating line which leaves the string untouched. With a hermetically sealed envelope, the separating line extends in the edge part, in part closely adjacent to the hollow space, such that between the tag and the hollow space, a narrow stay is formed which can be separated by hand transversely to the regional running direction of the separating line.

Abstract: A tea bag used for brewing a cup of tea in a cup; the tea bag being attached by a string to a tag that is gummed on one side so to be easily attachable to an outer side of the tea cup and thus prevent the need of fishing out the bag from a brewed tea water afterwards; and means in a modified design of the invention whereby the tag additionally serves as a tea bag squeezer.

Abstract: A dosage pack includes a first and a second permeable bag joined to one another along a common seam and being arranged in a face-to-face relationship by folding the bags onto one another along a fold line extending in the common seam. A holder string positioned between the two bags has a first end attached to one of the bags and a second end attached to a tag positioned externally of the two bags.

Abstract: an immersible bag (10) for exhaustable substances, with a bag containing the substance, which bag has a closed bag opening on the bag head (16), and with a bendable strip (12) folded along a transversely extending fold line, the strip having two legs continuously connected at the fold line, which legs are fastened on the bag and which legs receive therebetween the bag head adjacent the fold line, whereby the inner surface of the strip (which inner surface faces the bag) is formed at least at the fastening places by a thermoplastic synthetic material which is welded at the fastening places on the bag. The strip and the bag are spot welded at least at a spot or point-shaped fastening spot (38) on both outer sides of the bag, in the manner that the synthetic material is fused at the fastening spots with the porous material of the bag.