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Publication numberUS1659383 A
Publication typeGrant
Publication dateFeb 14, 1928
Filing dateDec 18, 1926
Priority dateDec 12, 1925
Publication numberUS 1659383 A, US 1659383A, US-A-1659383, US1659383 A, US1659383A
InventorsSchott Gerhard, Thiene Hermann, Paul H Prausnitz
Original AssigneeFirm Jenaer Glaswerk Schott &
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flask for laboratory purposes
US 1659383 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

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.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2492892 *Feb 11, 1944Dec 27, 1949Peter SchlumbohmRounded bottom inner dish for double boilers
US2659920 *Dec 6, 1947Nov 24, 1953Ginesi Robert LBottle and holder therefor
US3054535 *Jul 1, 1957Sep 18, 1962Bristol Myers CoLotion bottles and packages
US3100054 *Feb 7, 1961Aug 6, 1963Rubens George JTiltable bowl
US3805995 *Oct 6, 1972Apr 23, 1974Karmitz PContainers for aerosols, gases and the like
US4722850 *Apr 24, 1986Feb 2, 1988Baxter Travenol Laboratories, Inc.Disposable containers having collapsible panel
US6688485Jul 11, 2000Feb 10, 2004Jennifer L. LauerBase-mounted, tilted bowl
US20110081459 *Jun 8, 2009Apr 7, 2011Nestec S.A.Group of pots for food products
EP0987181A2 *Sep 10, 1999Mar 22, 2000Ivoclar AgTiltable container
WO2004080827A1 *Mar 9, 2004Sep 23, 2004Zemp PeterContainer
Classifications
U.S. Classification422/556, 215/382, 215/371, 435/288.1
International ClassificationB01L3/08
Cooperative ClassificationB01L3/08
European ClassificationB01L3/08