US1659383A - Flask for laboratory purposes - Google Patents

Flask for laboratory purposes Download PDF

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Publication number
US1659383A
US1659383A US155757A US15575726A US1659383A US 1659383 A US1659383 A US 1659383A US 155757 A US155757 A US 155757A US 15575726 A US15575726 A US 15575726A US 1659383 A US1659383 A US 1659383A
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United States
Prior art keywords
flask
laboratory purposes
flattening
stump
conical
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Expired - Lifetime
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US155757A
Inventor
Thiene Hermann
Paul H Prausnitz
Schott Gerhard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Firm Jenaer Glaswerk Schott &
Firm Jenaer Glaswerk Schott & Gen
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Firm Jenaer Glaswerk Schott &
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/08—Flasks

Definitions

  • the present invention relates to flasks for laboratory purposes, e. g. the so-called llrlenmayer flasks.
  • the bottom end of such flasks is provided with an oblique, downwardly directed flattening.
  • This afi'ords the possibility of placing such a flask in an oblique direction which, e. g. allows any sediment to settle down in the flask and then admits of pourto ing out its contents without simultaneously stirring up again the sediment.
  • these flattenings it is, of course, also possible to provide several of them.
  • the flask may be placed into an oblique position either on the said flattening or on any of the surface lines of an the cone. Although it would be able to roll on the surface of the cone it is stationary in the .direction of the meridional plane to which the respective surface line appertains. Besides, this kind of construction has the an advantage that it is less easy to completely upset the flask because with an inclination o' the flask with which it does no longer tend to return to its bottom surface it is first brought into a second stationary position in to which it is supported by the flattening or by one of the surface lines. Moreover, such a conical surface is convenient for use as the flask may then be securely suspended in a cooking-ring. In order to attain the said advantages, the top angle of the cone must be at least 90.
  • the annexed drawing shows two constructional examples of the invention.
  • the first example (Figs. 1 and 2) illus trates a boiling flask a which is provided with a flattening b.
  • Fig. 1 the flask stands on its ordinary base, in Fig. 2 on the flattening 5.
  • the second example (Figs. 3 and 4) is a flask 0 whose bottom end consists of a conical stump d in which the top angle is about 100. A flattening b is provided on this stump.
  • Fig. 3 shows the flask, standing on its ordinary base, whilst in Fig. 4 it rests upon one of the surface'lines of the conical stump d.
  • Flask for laboratory purposes whose bottom end consists of a conical stump, the smaller end surface of which is downwardly directed and in which the top angle is at least 90, which stump presents a base perpendicular to the axis of the flask, the said stump being provided with a flattening, the rim of which lies in a downwardly directed plane, so as to present a second base oblique to the said axis.

Description

Feb. 14, 1928. 1,659,383
H. THIENE ET AL FLASK FOR LABORATORY PURPOSES Filed Dec. 18. 1926 Fen "t l,
EERMANN EHIENE, JPA'UL "if. PRAUSNI'IZ, AND GEEHABD SCHOTL, @F J'E'NA, GEE- llliln'flllf, .ASSIGNORS TO FIRM J'ENAER GLASWERK SCJHGTIE' dz U1 HENA,
GERMANY.
FOR LABORATORY PURPOSES.
Application filed December 18, 1926, Seriallto. 155,?15t, and in Germany December MB, 19%..
The present invention relates to flasks for laboratory purposes, e. g. the so-called llrlenmayer flasks. According to the invention the bottom end of such flasks is provided with an oblique, downwardly directed flattening. This afi'ords the possibility of placing such a flask in an oblique direction which, e. g. allows any sediment to settle down in the flask and then admits of pourto ing out its contents without simultaneously stirring up again the sediment. Instead of only one of these flattenings it is, of course, also possible to provide several of them. If the remaining part of the bottom end to of the flask be given the shape of a conical stump whose small end surface is downwardly directed, the flask may be placed into an oblique position either on the said flattening or on any of the surface lines of an the cone. Although it would be able to roll on the surface of the cone it is stationary in the .direction of the meridional plane to which the respective surface line appertains. Besides, this kind of construction has the an advantage that it is less easy to completely upset the flask because with an inclination o' the flask with which it does no longer tend to return to its bottom surface it is first brought into a second stationary position in to which it is supported by the flattening or by one of the surface lines. Moreover, such a conical surface is convenient for use as the flask may then be securely suspended in a cooking-ring. In order to attain the said advantages, the top angle of the cone must be at least 90.
The annexed drawing shows two constructional examples of the invention.
The first example (Figs. 1 and 2) illus trates a boiling flask a which is provided with a flattening b. In Fig. 1 the flask stands on its ordinary base, in Fig. 2 on the flattening 5.
The second example (Figs. 3 and 4) is a flask 0 whose bottom end consists of a conical stump d in which the top angle is about 100. A flattening b is provided on this stump. Fig. 3 shows the flask, standing on its ordinary base, whilst in Fig. 4 it rests upon one of the surface'lines of the conical stump d.
We claim:
Flask for laboratory purposes, whose bottom end consists of a conical stump, the smaller end surface of which is downwardly directed and in which the top angle is at least 90, which stump presents a base perpendicular to the axis of the flask, the said stump being provided with a flattening, the rim of which lies in a downwardly directed plane, so as to present a second base oblique to the said axis.
HERMANN THIENE. PAUL H. PRAUSNITZ. GERHARD SCHOTT.
US155757A 1925-12-12 1926-12-18 Flask for laboratory purposes Expired - Lifetime US1659383A (en)

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DE1659383X 1925-12-12

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US1659383A true US1659383A (en) 1928-02-14

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492892A (en) * 1944-02-11 1949-12-27 Schlumbohm Peter Rounded bottom inner dish for double boilers
US2659920A (en) * 1947-12-06 1953-11-24 Bogan Charles Warren Bottle and holder therefor
US3054535A (en) * 1957-07-01 1962-09-18 Bristol Myers Co Lotion bottles and packages
US3100054A (en) * 1961-02-07 1963-08-06 George J Rubens Tiltable bowl
US3805995A (en) * 1971-12-02 1974-04-23 C Lebel Containers for aerosols, gases and the like
US4722850A (en) * 1984-04-12 1988-02-02 Baxter Travenol Laboratories, Inc. Disposable containers having collapsible panel
EP0987181A2 (en) * 1998-09-16 2000-03-22 Ivoclar Ag Tiltable container
US6688485B1 (en) 2000-07-11 2004-02-10 Jennifer L. Lauer Base-mounted, tilted bowl
WO2004080827A1 (en) * 2003-03-14 2004-09-23 Peter Zemp Container
US20110081459A1 (en) * 2008-06-10 2011-04-07 Nestec S.A. Group of pots for food products
USD743797S1 (en) 2013-07-03 2015-11-24 Owens-Brockway Glass Container Inc. Container
DE102014212601A1 (en) * 2014-06-30 2015-12-31 Henkel Ag & Co. Kgaa Liquid detergent container and method for metered dispensing of detergent from the container
USD760545S1 (en) * 2014-03-31 2016-07-05 Lincoln Kayiwa Drinking glass
USD789747S1 (en) * 2015-11-05 2017-06-20 True Fabrications, Inc. Faceted glassware
CN106966009A (en) * 2012-09-07 2017-07-21 欧文斯—布洛克威玻璃容器有限公司 Container with main and secondary support surface
USD878213S1 (en) * 2017-10-18 2020-03-17 Flor S.R.L. Perfume bottle
US10863813B2 (en) 2018-04-20 2020-12-15 Seanette Davis Separable nail polish container

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492892A (en) * 1944-02-11 1949-12-27 Schlumbohm Peter Rounded bottom inner dish for double boilers
US2659920A (en) * 1947-12-06 1953-11-24 Bogan Charles Warren Bottle and holder therefor
US3054535A (en) * 1957-07-01 1962-09-18 Bristol Myers Co Lotion bottles and packages
US3100054A (en) * 1961-02-07 1963-08-06 George J Rubens Tiltable bowl
US3805995A (en) * 1971-12-02 1974-04-23 C Lebel Containers for aerosols, gases and the like
US4722850A (en) * 1984-04-12 1988-02-02 Baxter Travenol Laboratories, Inc. Disposable containers having collapsible panel
EP0987181A2 (en) * 1998-09-16 2000-03-22 Ivoclar Ag Tiltable container
EP0987181A3 (en) * 1998-09-16 2000-08-16 Ivoclar Ag Tiltable container
US6688485B1 (en) 2000-07-11 2004-02-10 Jennifer L. Lauer Base-mounted, tilted bowl
WO2004080827A1 (en) * 2003-03-14 2004-09-23 Peter Zemp Container
US20110081459A1 (en) * 2008-06-10 2011-04-07 Nestec S.A. Group of pots for food products
CN106966009A (en) * 2012-09-07 2017-07-21 欧文斯—布洛克威玻璃容器有限公司 Container with main and secondary support surface
US10301056B2 (en) * 2012-09-07 2019-05-28 Owens-Brockway Glass Container Inc. Container having primary and secondary support surfaces
USD743797S1 (en) 2013-07-03 2015-11-24 Owens-Brockway Glass Container Inc. Container
USD760545S1 (en) * 2014-03-31 2016-07-05 Lincoln Kayiwa Drinking glass
DE102014212601A1 (en) * 2014-06-30 2015-12-31 Henkel Ag & Co. Kgaa Liquid detergent container and method for metered dispensing of detergent from the container
US10279957B2 (en) 2014-06-30 2019-05-07 Henkel Ag & Co. Kgaa Container for liquid detergent and method for the metered dispensing of detergent from the container
USD789747S1 (en) * 2015-11-05 2017-06-20 True Fabrications, Inc. Faceted glassware
USD799903S1 (en) * 2015-11-05 2017-10-17 True Fabrications, Inc. Faceted glassware
USD878213S1 (en) * 2017-10-18 2020-03-17 Flor S.R.L. Perfume bottle
US10863813B2 (en) 2018-04-20 2020-12-15 Seanette Davis Separable nail polish container

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