US2345876A - Cup to be used as cap for thermos bottles - Google Patents

Cup to be used as cap for thermos bottles Download PDF

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Publication number
US2345876A
US2345876A US344595A US34459540A US2345876A US 2345876 A US2345876 A US 2345876A US 344595 A US344595 A US 344595A US 34459540 A US34459540 A US 34459540A US 2345876 A US2345876 A US 2345876A
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cup
cap
screwthread
thermos bottles
screw
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Expired - Lifetime
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US344595A
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Kohrtz Gustaf Adolf Fredrik
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
    • A47J41/0083—Accessories

Definitions

  • the invention relates to an improved cap of mouldable material and the like which is particularly adapted for use as a cap on a heat insulated bottle, a so-called thermos bottle. It refers to that kind of cups which may be pushed into each other and by a turning movement secured to each other, thus enabling a plurality of cups to be united. This unity of cups may provide on a thermos bottle.
  • the above mentioned kind of cup has hitherto been made of metal with a conical screwthread so that an inner and an outer screwthread at the rim of the cup are obtained through pressing of the sheet-metal.
  • the screwthread on the outer side of one cup may be brought to fit in the screwthread on the inner side of another cup.
  • This construction cannot be used for cups made of mouldable material with relatively thick walls, as it would mean a very great conicalnes which would cause a little volume and unsatisfactory securing of the screwthread connection.
  • a cup according to the invention is shown.
  • the cup is provided with screwthreads I and 2 on the inner and outer sides respectively.
  • the screwthreads have such a diameter that the screwthread I of one cup may be pushed into the screwthread 2 of another cup.
  • the cup can be made of any suitable material, e. g., Bakelite or any other mouldable material.
  • the securing device, 1. e., screwthreads or grooves are preferably preformed in such a way that the interlocking is quickly obtained with only a little turning movement and so that the cup is easily cleaned.
  • the screwthreads which should be few and relatively shallow ought to have a great pitch.
  • a cup of the type adapted to be placed in a nested relationship with a similar cup including a cup body havin interlocking screw-threaded portions on the inner and on the outer side of the cup, the screw-threaded portion on the inner side of the cup being situated below the rim and the screw-threaded portion on the outer side of the cup being situated at a distance from said rim which is greater than the length of said screw-threaded portion on th inner side of said cup, the screw-threaded portions on both sides of the cup having a cylindrical form and such dimensions and shape that the screw-threaded portion on the outer side of the cup fit the screwthreaded portion on the inner side of a similar cup, the Wall having a substantial thickness over 1 mm. (0.03937 inch) and being provided with an offset between the two screw threads, said ofi'set being substantially equal to the main thickness of the wall.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Table Devices Or Equipment (AREA)

Description

April 4, 1944. G. A. F. KOHRTZ v ,345,
CUP TO BE USED AS CAP FOR THERMOS BOTTLES Filed July 9, 1940 Patented Apr. 4, 1944 CUP TO BE USED AS CAP FOR THERMOS BOTTLES Gustaf Adolf Fredrik Kohrtz, Stockholm, Sweden Application July 9, 1940, Serial No. 344,595
In Sweden July 15, 1939 1 Claim.
The invention relates to an improved cap of mouldable material and the like which is particularly adapted for use as a cap on a heat insulated bottle, a so-called thermos bottle. It refers to that kind of cups which may be pushed into each other and by a turning movement secured to each other, thus enabling a plurality of cups to be united. This unity of cups may provide on a thermos bottle.
The above mentioned kind of cup has hitherto been made of metal with a conical screwthread so that an inner and an outer screwthread at the rim of the cup are obtained through pressing of the sheet-metal. Through a certain conicalness the screwthread on the outer side of one cup may be brought to fit in the screwthread on the inner side of another cup. This construction, however, cannot be used for cups made of mouldable material with relatively thick walls, as it would mean a very great conicalnes which would cause a little volume and unsatisfactory securing of the screwthread connection. These inconveniences are avoided in a cup according to the invention as the outer screwthread is displaced axially from the rim of the cup so that the said screwthread does not cover the inner screwthread and the screwthreads are almost cylindrical.
In the drawing a cup according to the invention is shown. The cup is provided with screwthreads I and 2 on the inner and outer sides respectively. The screwthreads have such a diameter that the screwthread I of one cup may be pushed into the screwthread 2 of another cup.
Owing to this it is necessary to push the screwthreads in relation to each other in the axial direction of the cup. The cup can be made of any suitable material, e. g., Bakelite or any other mouldable material. The securing device, 1. e., screwthreads or grooves are preferably preformed in such a way that the interlocking is quickly obtained with only a little turning movement and so that the cup is easily cleaned. The screwthreads which should be few and relatively shallow ought to have a great pitch.
I claim:
A cup of the type adapted to be placed in a nested relationship with a similar cup including a cup body havin interlocking screw-threaded portions on the inner and on the outer side of the cup, the screw-threaded portion on the inner side of the cup being situated below the rim and the screw-threaded portion on the outer side of the cup being situated at a distance from said rim which is greater than the length of said screw-threaded portion on th inner side of said cup, the screw-threaded portions on both sides of the cup having a cylindrical form and such dimensions and shape that the screw-threaded portion on the outer side of the cup fit the screwthreaded portion on the inner side of a similar cup, the Wall having a substantial thickness over 1 mm. (0.03937 inch) and being provided with an offset between the two screw threads, said ofi'set being substantially equal to the main thickness of the wall.
GUSTAF' ADOLF FREDRIK KOHRTZ.
US344595A 1939-07-15 1940-07-09 Cup to be used as cap for thermos bottles Expired - Lifetime US2345876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2345876X 1939-07-15

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US2345876A true US2345876A (en) 1944-04-04

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497870A (en) * 1947-01-22 1950-02-21 Crown Cork & Seal Co Container closure
US2543581A (en) * 1946-02-20 1951-02-27 Koski Hans Infusion device
US2738914A (en) * 1950-10-31 1956-03-20 Keyes Fibre Co Fruit and vegetable container
US3045887A (en) * 1958-01-28 1962-07-24 James R Caine Thin walled plastic container
US3495736A (en) * 1967-06-21 1970-02-17 Inland Steel Co Helically beaded container
US4111303A (en) * 1975-08-01 1978-09-05 Mars Limited Plastics containers
DE29921508U1 (en) * 1999-12-08 2000-08-24 Bruno Albrecht Gmbh & Co Kg In Beverage can
US20060209627A1 (en) * 2003-08-07 2006-09-21 Mcgill Shane R Mixing apparatus
US20190135502A1 (en) * 2017-11-03 2019-05-09 Igloo Products Corp. Vacuum insulated beverage container with removable cup and method of using the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543581A (en) * 1946-02-20 1951-02-27 Koski Hans Infusion device
US2497870A (en) * 1947-01-22 1950-02-21 Crown Cork & Seal Co Container closure
US2738914A (en) * 1950-10-31 1956-03-20 Keyes Fibre Co Fruit and vegetable container
US3045887A (en) * 1958-01-28 1962-07-24 James R Caine Thin walled plastic container
US3495736A (en) * 1967-06-21 1970-02-17 Inland Steel Co Helically beaded container
US4111303A (en) * 1975-08-01 1978-09-05 Mars Limited Plastics containers
DE29921508U1 (en) * 1999-12-08 2000-08-24 Bruno Albrecht Gmbh & Co Kg In Beverage can
US20060209627A1 (en) * 2003-08-07 2006-09-21 Mcgill Shane R Mixing apparatus
US7938574B2 (en) * 2003-08-07 2011-05-10 Mcgill Technology Limited Mixing apparatus
US20110205834A1 (en) * 2003-08-07 2011-08-25 Mcgill Technology Limited Mixing Apparatus
US8142068B2 (en) 2003-08-07 2012-03-27 Mcgill Technology Limited Mixing apparatus
US20190135502A1 (en) * 2017-11-03 2019-05-09 Igloo Products Corp. Vacuum insulated beverage container with removable cup and method of using the same

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