US2983616A - Drinking straw and method of manufacture - Google Patents

Drinking straw and method of manufacture Download PDF

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Publication number
US2983616A
US2983616A US40010A US4001060A US2983616A US 2983616 A US2983616 A US 2983616A US 40010 A US40010 A US 40010A US 4001060 A US4001060 A US 4001060A US 2983616 A US2983616 A US 2983616A
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United States
Prior art keywords
straw
flavor
adhesive
absorbent material
outermost
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Expired - Lifetime
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US40010A
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Hans L Levi
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Individual
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Priority to NL266522D priority Critical patent/NL266522A/xx
Application filed by Individual filed Critical Individual
Priority to US40010A priority patent/US2983616A/en
Priority to DEE19802A priority patent/DE1143411B/en
Priority to DEE14312U priority patent/DE1828937U/en
Application granted granted Critical
Publication of US2983616A publication Critical patent/US2983616A/en
Priority to FR866491A priority patent/FR1308584A/en
Priority to BE605618A priority patent/BE605618A/en
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • A47G21/183—Drinking straws or the like with means for changing the flavour of the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0095—Making drinking straws

Definitions

  • This invention relates to a drinking straw and more particularly to one which adds flavoring material to the liquid being drawn through it.
  • flavored drinking straws exist in the prior art and generally they involve the use of an insert of some sort comprised of an absorbent material impregnated with flavoring material which will be soluble in the fluid being drawn through the straw.
  • One such prior art structure involves the use of a rectangular insert which is placed centrally within the straw by a special method of manufacture wherein the normal circular cross-section of the straw is compressed into oval shape to receive the insert which is slightly wider than the normal diameter of the straw. After insertion the compression on the straw is released and the insert held firmly in place.
  • An object of the present invention is to provide a flavor straw which canbe made on existing standard equipment without the addition of special techniques.
  • Another object is to provide a flavor straw which has no obstruction to liquid flow in its interior.
  • 'Another object is to provide a flavor straw which re- L quires no waxing, i.e. covering with paraflin, after manufacture as is required now for 'allpap'er drinking straws.
  • a further object is to provide a flavor straw which exposes maximum surface area of the flavor-containing material to the liquid being flavored.
  • Fig. 1 is an enlarged longitudinal partial section of a straw embodying the principles of the present invention.
  • Fig. 2 is a schematic diagram showing the arrangement of the materials of manufacture.
  • the flavor straw of the present invention is shown in Fig. 1 and designated generally by the reference numeral 10. It is a laminated structure having three closely fitting coaxial tubular members, the innermost layer '11 comprised of any suitable well known absorbent material, usually of cellulose or the like, and which is impregnated in the usual manner with a soluble flavor substance. Directly surrounding inner layer 11 is an intermediate layer 12 of wet-strength paper. The wet-strength paper and absorbent layer are held together by friction and the somewhat sticky consistency of the flavoring material, without use of any other adhesive.
  • the outer tubular layer 13 is cellophane, cellulose acetate, or the like, i.e.
  • wet-strength paper layer 12 is employed to enhance the mechanical strength of the straw and the cellophane is used to give a better appearance, even better wet-strength characteristics, and greater durability during handling and use.
  • the instant flavor straw can be manufactured on standard drinking straw manufacturing equipment.
  • standard drinking straws are manufactured by machines which spiral wind paper strip or tape about a mandrel.
  • Fig. 2 schematically is shown the use of such standard technique for the present invention.
  • Three separate tapes 15, 16 and 17 are fed to the mandrel 18 to provide the three layer structure.
  • Tape 15 is the impregnated absorbent material
  • tape 16 is the wet-strength paper
  • tape 17 is the cellophane.
  • Tap-e 15 can be either impregnated prior to being supplied in roll form to the, machine, can be. impregnated at some intermediate point between the roll and the mandrel, or can be impregnated after the three layer straw is completely fabricated by a dipping process or the like.
  • the cellophane tape 17 can be coated with the required adhesive material by any well known technique such as adhesive roller 20 as the tape is being fed to the mandrel.
  • the three layer straw 19 is fabricated by the simultaneous winding of the three tapes and a novel straw is provided having the above described characteristics. Not only is this straw manufactured on standard machinery but also the cost of manufacture is considerably lower than that of flavor straws. in the prior art.
  • a durable structure is provided which has a free flow unobstructed inner bore.
  • a flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with asoluble flavor substance, an intermediate member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to said structure without use of another adhesive, an intermediate reinforcing member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor susbtance and adhered to said structure without use of another adhesive, an intermediate reinforcing member thereof composed of waxed wet-strength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to said structure without use of another adhesive, an intermediate reinforcing member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film selected from the class consisting of cellophane and cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of three coaxial tubular members, the innermost tubular member thereof composed of absorbent material impregnated with :a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of Wet-strength paper, and the outermost member thereof composed of a synthetic impervious film selected from the class consisting of cellophane and cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film selected from the class consisting of cellophane and cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of Wetstrength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of wetstrength paper, and the outermost member thereof composed of cellophane, said outermost member joined to said intermediate member and itself by an adhesive.
  • a flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of wetstrength paper, and the outermost member thereof composed of cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
  • the method of fabricating a drinking straw comprising spiral winding a strip of absorbent material to form an elongated tubular member, spiral winding a strip of wet-strength paper on the first said strip to form a closely fitting second tubular member thereon, and spiral winding a strip of a synthetic impervious film material coated with an adhesive, on said second tubular member.
  • the method of fabricating a drinking straw comprising spiral winding a strip of absorbent material impregnated with a soluble flavoring substance to form an elongated tubular member, spiral winding a stripof wetstreng'th paper on the first said strip to form a closely fitting second tubular member thereon, and spiral winding a strip of a synthetic impervious film material selected from the class consisting of cellophane and cellulose acetate and coated with an adhesive, on said second tubular member.
  • the method of fabricating a drinking straw comprising spiral winding a strip of absorbent material to form an elongated tubular member, and spiral winding a strip of cellophane, coated with an adhesive, on said tubular member and impregnating said absorbent material with a soluble flavoring substance.
  • the method of fabricating a drinking straw comprising spiral winding a strip of absorbent material to form an elongated tubular member, spiral winding a strip of wet-strength paper on the first said strip to form a closely fitting second tubular member thereon, and spiral winding a strip of cellophane, coated with an adhesive, on said second tubular member and impregnating said absorbent material with a soluble flavoring substance.

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  • Table Equipment (AREA)
  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)

Description

DRINKING STRAW AND NIETHOD OF MANUFACTURE Hans L. Levi, 300 Broadway, Dobbs Ferry, N.Y.
Filed June '30, 1960, Ser. No. 40,010
14 Claims. (Cl. 99-138) This invention relates to a drinking straw and more particularly to one which adds flavoring material to the liquid being drawn through it.
Various types of flavored drinking straws exist in the prior art and generally they involve the use of an insert of some sort comprised of an absorbent material impregnated with flavoring material which will be soluble in the fluid being drawn through the straw. One such prior art structure involves the use of a rectangular insert which is placed centrally within the straw by a special method of manufacture wherein the normal circular cross-section of the straw is compressed into oval shape to receive the insert which is slightly wider than the normal diameter of the straw. After insertion the compression on the straw is released and the insert held firmly in place.
This and other types of prior art structures has re quired the development of special manufacturing techniques which have required somewhat more cumbersome and complex methods of manufacture being added to the standard technique employed for the manufacture of ordinary drinking straws.
' An object of the present invention is to provide a flavor straw which canbe made on existing standard equipment without the addition of special techniques.
Another object is to provide a flavor straw which has no obstruction to liquid flow in its interior.
'Another object is to provide a flavor straw which re- L quires no waxing, i.e. covering with paraflin, after manufacture as is required now for 'allpap'er drinking straws.
A further object is to provide a flavor straw which exposes maximum surface area of the flavor-containing material to the liquid being flavored.
Other objects and features of the invention will become apparent in the following description and claims and in the drawings in which:
Fig. 1 is an enlarged longitudinal partial section of a straw embodying the principles of the present invention; and
Fig. 2 is a schematic diagram showing the arrangement of the materials of manufacture.
The flavor straw of the present invention is shown in Fig. 1 and designated generally by the reference numeral 10. It is a laminated structure having three closely fitting coaxial tubular members, the innermost layer '11 comprised of any suitable well known absorbent material, usually of cellulose or the like, and which is impregnated in the usual manner with a soluble flavor substance. Directly surrounding inner layer 11 is an intermediate layer 12 of wet-strength paper. The wet-strength paper and absorbent layer are held together by friction and the somewhat sticky consistency of the flavoring material, without use of any other adhesive. The outer tubular layer 13 is cellophane, cellulose acetate, or the like, i.e. a synthetic impervious film material, and is joined to the wet-strength paper layer and itself by a suitable adhesive 14. The wet-strength paper layer 12 is employed to enhance the mechanical strength of the straw and the cellophane is used to give a better appearance, even better wet-strength characteristics, and greater durability during handling and use.
The instant flavor straw can be manufactured on standard drinking straw manufacturing equipment. As is well known, standard drinking straws are manufactured by machines which spiral wind paper strip or tape about a mandrel. In Fig. 2, schematically is shown the use of such standard technique for the present invention. Three separate tapes 15, 16 and 17 are fed to the mandrel 18 to provide the three layer structure. Tape 15 is the impregnated absorbent material, tape 16 is the wet-strength paper and tape 17 is the cellophane. Tap-e 15 can be either impregnated prior to being supplied in roll form to the, machine, can be. impregnated at some intermediate point between the roll and the mandrel, or can be impregnated after the three layer straw is completely fabricated by a dipping process or the like. The cellophane tape 17 can be coated with the required adhesive material by any well known technique such as adhesive roller 20 as the tape is being fed to the mandrel.
Thus the three layer straw 19 is fabricated by the simultaneous winding of the three tapes and a novel straw is provided having the above described characteristics. Not only is this straw manufactured on standard machinery but also the cost of manufacture is considerably lower than that of flavor straws. in the prior art. A durable structure is provided which has a free flow unobstructed inner bore.
While one embodiment of the invention has been shown and described it is to be understood that certain changes and additions can be made by those skilled in the art without departing from the scope an spirit of the invention. For example, the omission of the intermediate layer of wet-strength paper, while increasing the thickness of the outer cellophane layer for reinforcing purposes shall not constitute a departure from the scope of the invention.
What is claimed is:
1. A flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with asoluble flavor substance, an intermediate member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
2. A flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to said structure without use of another adhesive, an intermediate reinforcing member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
3. A flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor susbtance and adhered to said structure without use of another adhesive, an intermediate reinforcing member thereof composed of waxed wet-strength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
4. A flavor straw comprised of a plurality of coaxial tubular members constituting a closely fitting laminated structure, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to said structure without use of another adhesive, an intermediate reinforcing member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film selected from the class consisting of cellophane and cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
5. A flavor straw comprised of three coaxial tubular members, the innermost tubular member thereof composed of absorbent material impregnated with :a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of Wet-strength paper, and the outermost member thereof composed of a synthetic impervious film selected from the class consisting of cellophane and cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
6. A flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of wet-strength paper, and the outermost member thereof composed of a synthetic impervious film selected from the class consisting of cellophane and cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
7. A flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of Wetstrength paper, and the outermost member thereof composed of a synthetic impervious film, said outermost member joined to said intermediate member and itself by an adhesive.
8. A flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of wetstrength paper, and the outermost member thereof composed of cellophane, said outermost member joined to said intermediate member and itself by an adhesive.
9. A flavor straw comprised of three coaxial spiral wound tubular members, the innermost tubular member thereof composed of absorbent material impregnated with a soluble flavor substance and adhered to the intermediate member without use of another adhesive, the intermediate reinforcing member thereof composed of wetstrength paper, and the outermost member thereof composed of cellulose acetate, said outermost member joined to said intermediate member and itself by an adhesive.
10. The method of fabricating a drinking straw comprising spiral winding a strip of absorbent material to form an elongated tubular member, spiral winding a strip of wet-strength paper on the first said strip to form a closely fitting second tubular member thereon, and spiral winding a strip of a synthetic impervious film material coated with an adhesive, on said second tubular member.
11. The method of fabricating a drinking straw comprising spiral winding a strip of absorbent material impregnated with a soluble flavoring substance to form an elongated tubular member, spiral winding a stripof wetstreng'th paper on the first said strip to form a closely fitting second tubular member thereon, and spiral winding a strip of a synthetic impervious film material selected from the class consisting of cellophane and cellulose acetate and coated with an adhesive, on said second tubular member.
12. The method of fabricating a drinking straw comprising spiral winding a strip of absorbent material to form an elongated tubular member, and spiral winding a strip of cellophane, coated with an adhesive, on said tubular member and impregnating said absorbent material with a soluble flavoring substance.
13. The method of fabricating a drinking straw comprising spiral winding a strip of absorbent material to form an elongated tubular member, spiral winding a strip of wet-strength paper on the first said strip to form a closely fitting second tubular member thereon, and spiral winding a strip of cellophane, coated with an adhesive, on said second tubular member and impregnating said absorbent material with a soluble flavoring substance.
14. The method of fabricating a drinking straw which coniprises carrying out the steps of claim 11 simultaneous y.
No references cited.

Claims (1)

1. A FLAVOR STRAW COMPRISED OF A PLURALITY OF COAXIAL TUBULAR MEMBERS CONSTITUTING A CLOSELY FITTING LAMINATED STRUCTURE, THE INNERMOST TUBULAR MEMBER THEREOF COMPOSED OF ABSORBENT MATERIAL IMPREGNATED WITH A SOLUBLE FLAVOR SUBSTANCE, AN INTERMEDIATE MEMBER THEREOF COMPOSED OF WET-STRENGTH PAPER, AND THE OUTERMOST MEMBER THEREOF COMPOSED OF A SYNTHETIC IMPERVIOUS FILM, SAID OUTERMOST MEMBER JOINED TO SAID INTERMEDIATE MEMBER AND ITSELF BY AN ADHESIVE.
US40010A 1960-06-30 1960-06-30 Drinking straw and method of manufacture Expired - Lifetime US2983616A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL266522D NL266522A (en) 1960-06-30
US40010A US2983616A (en) 1960-06-30 1960-06-30 Drinking straw and method of manufacture
DEE19802A DE1143411B (en) 1960-06-30 1960-08-19 Drinking straw
DEE14312U DE1828937U (en) 1960-06-30 1960-08-24 DRINKING STRAW.
FR866491A FR1308584A (en) 1960-06-30 1961-06-29 Drinking straw
BE605618A BE605618A (en) 1960-06-30 1961-06-30 Drinking straw

Applications Claiming Priority (1)

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US40010A US2983616A (en) 1960-06-30 1960-06-30 Drinking straw and method of manufacture

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US2983616A true US2983616A (en) 1961-05-09

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US40010A Expired - Lifetime US2983616A (en) 1960-06-30 1960-06-30 Drinking straw and method of manufacture

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BE (1) BE605618A (en)
DE (2) DE1143411B (en)
NL (1) NL266522A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168982A (en) * 1963-03-07 1965-02-09 Harry E Davis Drinking straw
US3620770A (en) * 1970-04-15 1971-11-16 Meditron Inc Coated straw for modifying sour taste
US3957202A (en) * 1975-09-17 1976-05-18 Hornsby Jr James R Novelty drinking straw
US5094861A (en) * 1990-10-15 1992-03-10 Auguste Susanne D Flavored drink straw
US6142384A (en) * 1999-01-28 2000-11-07 Shafik; Aasef M. Personal portable liquid filter device
US20030203075A1 (en) * 2002-04-25 2003-10-30 Taylor Lee Richard Flavored straw inserts
US20030234297A1 (en) * 2002-06-22 2003-12-25 Bloom Walter L. Aspirating and volatilizing liquid dispenser
US20060065757A1 (en) * 2004-09-25 2006-03-30 Calabrese Daniel C Safety Straw TM
US20060286214A1 (en) * 2002-07-17 2006-12-21 Weiss Sanford B Edible drinking straw
US20080197141A1 (en) * 2007-02-20 2008-08-21 Felfoldi Edesseggyarto Kft. Drinking Straw
US10925423B2 (en) * 2018-04-06 2021-02-23 Yu-Ting Hsu Three-layer composite paper straw and method for producing the same
WO2021247007A1 (en) * 2020-06-02 2021-12-09 Goodman Francis Morris Jr Improved drinking straws and manufacturing process
EP4049689A1 (en) 2021-02-25 2022-08-31 Dentsply IH AB Medical device with substrate comprising natural fibers
US20230241858A1 (en) * 2020-05-18 2023-08-03 I.M.A. Industria Macchine Automatiche S.P.A. Machine and method for producing a tubular product, preferably made of paper, preferably usable to produce straws

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1710821U (en) * 1955-11-17 Dr. Hellmuth Hof K.G., Mainz-Weisenau Plastic drinking tubes
US2072580A (en) * 1933-10-19 1937-03-02 Oscar B Wilson Drinking tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168982A (en) * 1963-03-07 1965-02-09 Harry E Davis Drinking straw
US3620770A (en) * 1970-04-15 1971-11-16 Meditron Inc Coated straw for modifying sour taste
US3957202A (en) * 1975-09-17 1976-05-18 Hornsby Jr James R Novelty drinking straw
US5094861A (en) * 1990-10-15 1992-03-10 Auguste Susanne D Flavored drink straw
US6142384A (en) * 1999-01-28 2000-11-07 Shafik; Aasef M. Personal portable liquid filter device
US20030203075A1 (en) * 2002-04-25 2003-10-30 Taylor Lee Richard Flavored straw inserts
US20030234297A1 (en) * 2002-06-22 2003-12-25 Bloom Walter L. Aspirating and volatilizing liquid dispenser
US20060286214A1 (en) * 2002-07-17 2006-12-21 Weiss Sanford B Edible drinking straw
WO2006036908A2 (en) * 2004-09-25 2006-04-06 Daniel Calabrese Safety straw
US20060065757A1 (en) * 2004-09-25 2006-03-30 Calabrese Daniel C Safety Straw TM
WO2006036908A3 (en) * 2004-09-25 2007-04-19 Daniel Calabrese Safety straw
US20080197141A1 (en) * 2007-02-20 2008-08-21 Felfoldi Edesseggyarto Kft. Drinking Straw
US10925423B2 (en) * 2018-04-06 2021-02-23 Yu-Ting Hsu Three-layer composite paper straw and method for producing the same
US20230241858A1 (en) * 2020-05-18 2023-08-03 I.M.A. Industria Macchine Automatiche S.P.A. Machine and method for producing a tubular product, preferably made of paper, preferably usable to produce straws
US11951707B2 (en) * 2020-05-18 2024-04-09 I.M.A. Industria Macchine Automatiche S.P.A. Machine and method for producing a tubular product, preferably made of paper, preferably usable to produce straws
WO2021247007A1 (en) * 2020-06-02 2021-12-09 Goodman Francis Morris Jr Improved drinking straws and manufacturing process
EP4049689A1 (en) 2021-02-25 2022-08-31 Dentsply IH AB Medical device with substrate comprising natural fibers
WO2022180201A1 (en) 2021-02-25 2022-09-01 Dentsply Ih Ab Medical device with substrate comprising natural fibers

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DE1143411B (en) 1963-02-07
BE605618A (en) 1961-10-16
DE1828937U (en) 1961-03-30
NL266522A (en)

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