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Publication numberUS1395642 A
Publication typeGrant
Publication dateNov 1, 1921
Filing dateAug 5, 1920
Priority dateAug 5, 1920
Publication numberUS 1395642 A, US 1395642A, US-A-1395642, US1395642 A, US1395642A
InventorsBenjamin Hirschhorn
Original AssigneeNat Urn Bag Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1395642 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




1,395,642. Patented Nov. .1, 1921.





To all whom it may concern.

Be it known that I, BENJAMIN HIRsoH- HORN, a citizen of the United States, and a resident of the city of New York, in the county of Bronx and State of New York, have invented certain new and useful Improvements in Tea-Cartridges, of which the following is a specification.

The present invention relates to a cartridge for percolating or extracting the flavor from tea-leaves'or coffee. The invention pertains more particularly to that type of tea-cartrid es, which is described in U. S. Letters atent No. 1,310,796, granted to me on July 22, 1919.

In the Letters Patent mentioned, a devicefor extracting essence from tea-leaves or coffee is described, comprising a bag of textile fabric, which contains a'definite quantity of tea-leaves or coflee, just sufiicient for a Single brewin The mouth of this bag is drawn into olds, and closed by a nietal strip, engaging and compressing said folds, thereby closing the mouth of said bag, said strip attaching at the same time a suspend-. in string to said bag.

The main object of the present invention is to so construct the inclosing metal strip, that it will, under all circumstances, keep the suspending string in position upon the inother object of the invention is to utilize the metallic strip to hold in position upon the bag a wrapper of paper or other material.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter described, pointed out in the appended Specification of Letters Patent.

Application filed, August 5,

Patented N 0v. 1, 1921. 1920.- Serial No. 401,293.

22 of Fig. 1, on a larger scale; Fig. 3 is an elevat1on of the closing strip; and Fig. 4 Is an elevation, partly in section, of the cartridge in its wrapper.

' Referring now first to Figs. 1 to 3, inelusive, of the drawings, the numeral 10 indicates'a bag of open-mesh textile fabric, such as for instance cotton, and of a size to conta1n just suflicient tea-leaves or coffee for a single brewing. This bag may be produced in any suitable manner, tea-leaves or coffee beingplaced thereinto after it has been properly sterilized. The mouth of the bag is close by drawing or gathering the same Into folds, and applying thereto a metal strip 11, that is shaped to assume the form of a ring, embracing the folded portion of the bag holding the folds under compression, so as to prevent escaping of the contents. The strip 11 must, obviously, be made of noncorrodlng metal, or of a metal that is properly prepared to prevent corrosion. The ends of the metal strip are pointed oi triangular, as shown at 12, and so arranged 1n relation to each other that the small gap between the same runs ina plane that is disposed at an oblique angle to the longitudinal axis of the ring, as clearly appears from Figs. 1 and 2 of the drawings. The purpose of this arrangement will appear hereinafter.

For the purpose of facilitating the ban-- dling of the cartridge, there is secured thereto a flexible means, such as a string 13, to which is attached at its free end a handle 14, made, for instance, of cardboard. This strin serves also as the means for suspending t e cartridge from the receptacle, such as a tea-pot or coffee-pot, in which the extraction is to take place. The string is secured to the cartridge'by placing it against the folds around the mouth bag before the strip 11 is formed to constitute aring. The strip 11 has thus a two-fold purpose, to wit: First, it serves as a bag closure, and, second, it constitutes the means for attachin the handle carrying strin to the bag. hile the ends of the ring- 0 not meet, as shown in Figs. 1 and 3 of the drawings, the string 13 will under all circumstances be securely held in place, due tothe fact that the gap between the ring ends extends, as above described, in a plane at an acute angle to the longitudinal axis of the ring. If the gap below its mouth, thereby 1 were to extend parallel to the said longitudifrom becoming loose, but in practice ithasbeen found that the machine for forming and attaching rings of this type is rather 'com licated.

It found desirable, a wrapper 15, preferably the form of a bag, (Fig. 4), may be held in place upon the bag by the ring 11. For this purpose, the filled bag is placed into the wrapper and the mouth of the said wrapper simultaneously puckered with the mouth of the bag, the ring 11 being then AP". plied, thereby holding the wrapper in position upon the securely closed bag. The string 13 with its handle 14 is also heldin position in the manner above referred to.

In brewing tea or coffee with the improved device, first the wrapper is removed therefrom, the cartridge being then taken hold of by its handle 14 and lowered into the brewing receptacle, the free end of the string and handle being-permitted to hang over the mouth of the receptacle, after which its cover is put in place. The cover will thus hold the outer end of the string and handle ready for further operation. Into the receptacle is oured asuitable quantity of boiling water, either before or after the insertion of the cartridge. When sufiicicnt essence has been extracted from the tea leaves or coffee within the cartridge, the cover of the brewing receptacle is removed and the bag withdrawn by grasping its handle 14. The wrapper 15 is provided in order to obtain a sanitary package.

WVhat I claim is y A device for extracting essence from tealeaves or coffee, comprising a bag of textile fabrichaving its mouth drawn into folds, a suspending string abutting with one of its ends against said folds, and a metal strip encircling and compressing said folds for closing the mouth of said bag and for attaching said string thereto, the ends of said strip being spaced apart and the gap between said ends being disposed at an oblique angle to a plane in which one of the flat faces of the encircling ring is located, thereby preventing said string from becoming disengaged from said bag.

Signed at New York, in the county of New York and State of New York this 25th day of June, A. D. 1920.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4680185 *Feb 6, 1986Jul 14, 1987Illk Barbara DInfusion package
U.S. Classification426/81, 206/.5
International ClassificationB65D81/00, B65D85/804, B65D85/808
Cooperative ClassificationB65D85/8085, B65D85/808
European ClassificationB65D85/808B, B65D85/808