Infusion bag, particularly for tea

Claim 2

AN INFUSION BAG CONTAINING AN INFUSIBLE SUBSTANCE COMPRISING A POROUS-WALLED CONTAINER FOR THE INFUSIBLE SUBSTANCE, SAID CONTAINER INCLUDING AN ELONGATED HEAD PORTION AND AT LEAST TWO SIDES, A STRIP OF NON-POROUS SHEET MATERIAL SECURED TO SAID HEAD PORTION AND FOLDED ABOUT SAID CONTAINER ALONE A LINE EXTENDING SUBSTANTIALLY PARALLEL TO SAID HEAD PORTION, SAID STRIP INCLUDING SIDE PORTIONS HAVING LATERAL EDGES AND EXTENDING FROM SAID FOLD LINE ON OPPOSITE SIDES OF SAID CONTAINER, AT LEAST ONE OF SAID SIDE PORTIONS EXTENDING OVER SUBSTANTIALLY THE ENTIRE LENGHT OF SAID CONTAINER ADJACENT THE RESPECTIVE SIDE THEREOF, SAID AT LEAST ONE SIDE PORTION INCLUDING A FIRST PRESTAMPED SCRIBE LINE EXTENDING PARALLEL TO SAID FOLD LINE, AT LEAST ONE ADDITIONAL PRESTAMPED SCRIBE LINE EXTENDING FROM SAID FOLD LINE ADJACENT AND PARALLEL TO ONE OF SAID LATERAL EDGES AND RUNNING OVER A PREDOMINANT PORTION OF SAID AT LEAST ONE SIDE PORTION, SAID AT LEAST ONE ADDITIONAL SCRIBE LINE INTERSECTING SAID FIRST SCRIBE LINE AND DEFINING THEREWITH, WHEN SAID SHEET MATERIAL IS CUT ALONG SIDE SCRIBE LINES, A HANGER HAVING MEANS ADAPTED TO BE CONNECTED TO A POUR SPOUT OF A POT, SAID HANGER REMAINING CONNECTED TO SAID HEAD AFTER CUTTING OF SAID LINES BY MEANS OF AT LEAST ONE NARROW WEB DEFINED IN SAID AT LEAST ONE SIDE PORTION BETWEEN SAID AT LEAST ONE ADDITIONAL SCRIBE LINE AND THE RESPECTIVE ADJACENT LATERNAL EDGE OF SAID AT LEAST ONE SIDE PORTION.

Claim 3

An infusion bag with at least one chamber containing an infusible substance, said bag comprising a head portion having a single fold at the edge forming the bag opening, said head portion being reinforced by means of a flexible strip attached at a point to and encompassing the entire width of said head portion, said flexible strip being folded about both sides of said bag along a fold line and having at least one side piece which extends over the entire length of said bag and terminates in a free end, said at least one side piece having lateral edges and a transverse edge at said free end, one of said at least one side pieces having at least one prestamped scribe line running parallel to at least one of said lateral edges and extending substantially from said fold line over a predominant portion of said at least one side piece to a point spaced from said transverse edge, another prestamped scribe line extending perpendicular to and terminating at said at least one prestamped scribe line and extending along a substantial portion of said head portion, said scribe lines defining, when said strip is cut therealong, a hanger adapted to be spatially separated from said strip while remaining connected thereto by means of at least one narrow web defined between said at least one scribe line and its respective lateral edge and of a length corresponding to the length of said at least one side portion, and wherein said hanger includes at least one cut defining an aperture which facilitates connection of said hanger to a pour spout of a pot.

Claim 4

An infusion bag with at least one chamber containing an infusible substance, said bag comprising a head portion having a single fold at the edge forming the bag opening, said head portion being reinforced by means of a flexible strip attached at a point to and encompassing the entire width of said head portion, said flexible strip being folded about both sides of said bag along a fold line and having at least one side piece which extends over the entire length of said bag and terminates in a free end, said at least one side piece having lateral edges and a transverse edge at said free end, one of said at least one side pieces having at least one prestamped scribe line running parallel to at least one of said lateral edges and extending substantially from said fold line over a predominant portion of said at least one side piece to a point spaced from said transverse edge, another prestamped scribe line extending perpendicular to and terminating at said at least one prestamped scribe line and extending along a substantial portion of said head portion, said scribe lines defining, when said strip is cut therealong, a hanger adapted to be spatially separated from said strip while remaining connected thereto by means of at least one narrow web defined between said at least one scribe line and its respective lateral edge and of a length corresponding to the length of said at least one side portion, and wherein said hanger includes at least one cut defining an aperture which facilitates connection of said hanger to a pour spout of a pot.

Claim 5

Infusion bag according to claim 2, characterized in that the strip is made from an elastically pliable material.

Claim 6

Infusion bag according to claim 2, characterized in that said flexible strip is attached at mutually opposite locations to the bag head by means of a single non-rusting fixing clip.

Claim 7

Infusion bag according to claim 2, characterized in that the strip is welded on the bag head.

Claim 8

An infusion bag as defined in claim 2, wherein said another scribe line is located between said transverse edge of said at least one side piece and its point of attachment to said head portion of said bag.

Claim 9

An infusion bag as defined in claim 2, wherein said at least one cut comprises three notches in the shape of an I extending parallel to the lateral edges and transverse edge, respectively, of said side piece.

Claim 10

An infusion bag as defined in claim 2, wherein said fold line is spaced from said single fold of said head portion, thereby defining a projecting piece which can be used as a handle for said bag.

Claim 11

An infusion bag as defined in claim 2, wherein said at least one side piece has two scribe lines running parallel to the respective lateral edges thereof and said another scribe line intersects both of said two scribe lines, whereby tearing of said scribe lines will define two narrow webs.

Claim 12

An infusion bag as defined in claim 2, wherein said at least one side piece has only one scribe line running parallel to a respective lateral edge, and said another scribe line extends from said one scribe line to the opposite lateral edge of said side piece, whereby tearing of said scribe lines will define one narrow web.

Claim 13

Infusion bag according to claim 2, characterized in that the strip is made in one piece from water repellant material.

Claim 14

Infusion bag according to claim 11, characterized in that impregnated paper is provided as the strip material.

Claim 15

Infusion bag according to claim 11, characterized in that paper lined at least on one side with a synthetic plastic film is provided as the strip material.

Claim 16

An infusion bag as defined in claim 2, wherein said at least one side piece comprises two side pieces extending on opposite sides of said bag, and wherein one of said side pieces has a prestamped scribe line extending completely from one lateral edge to the other located between its point of attachment to said head portion and its respective transverse edge, whereby tearing of said completely extending scribe line will permit removal of a substantial portion of said one side piece prior to insertion of said bag in a pot.

Claim 17

An infusion bag as defined in claim 14, wherein said one of said side pieces has a folding line extending parallel to its respective transverse edge and upon which said one of said side pieces can be folded back over the respective portion thereof which is attached to the head portion of said bag, and means for securing said one of said side pieces to the other of said side pieces when folded back along said folding line.

Claim 18

An infusion bag as defined in claim 15, wherein said means for securing includes a first cut extending obliquely from said fold line of said strip through both side pieces thereof which defines a corner when bent out of the plane of said strip, and a second cut extending longitudinally through said one of said side pieces, whereby folding of said one of said side pieces back along said folding line will enable said corner to be inserted through said second cut.