US2471483A - Lipstick case - Google Patents

Description

May 31, 1949. s. FRYDLENDER LIPSTICK CASE Filed May 15, 1945 V Z ti Patented May 31, 1949 Sophie. Frydlender; Paris, France, assignor. to LancomeSociete Anonyme,l.aris, France, acct.

poration-ofTrance Application'iMayi-lfi; 1945; SerialiNo; 593,805 In France-J anuary; 29, 1944;

' Section 1', Public Law 69D,' Aug ust'8, 1946 Patent expires January '29; 1964- The present invention relates: to MED-Stick case of f the known kind 1 in: whichathe= driving' in.

and" out of the stick-holder" socket is controlled by the rotation of a" device provided with a".

helical groove; The-object of the invention is to provide a lip-stick case ofithis kind easytto' mann facture, easy to handle and the=- user oi which does not-risk to lose the various elements and more particularly the-movable closing cap.-

For this purpose,- the lip-stick case" according to the invention is -css'entially characterized 3 by the fact that thre closing cap is' established so as to .be able to fit" the lower part of the rotarydevice provided with-a helical g=roove,-- the said lower part being almost entirely concealedinside the -'body=of the case so=tliat -its--rotatienri must be controlled through the medium. of the closing cap.

In these conditions; orden'to'drive'out the stich holder-sock et the user is obliged to fix the closing cap upon the lower part of the control device and he-must leave-the said cap secured toasaid lower part to driveback the socketinto the case after use. Thus, he has-only; one piece:

in hand during the wholeworking. of, the case and, accordingly; cannotlos'e the cap.

Further characteristic features of the inven tion. will appear from the compiementary description given .hereunder. wtlh'; reference to 1 the appended.drawing,.which shows; by way ofrnonlimitativec example, .a. form:.oi: execution" of the lip-stick cas'e'c-whichiorms thez s-uliject matterof this.- invention. In.the-said drawing:

Figure 1 is aperspectiveviewiofthe case in the closing position.

Figures 2, 3 and 4 are also =-perspective views of the variousa elements of the case.

Figures 5 and 6 are partial sectional views of the case showing the interlocking device for the closing cap and the fixation of the control device provided with a helical groove respectively.

Figure 7 is a perspective view of the case in the working position, and

Figure 8 is a vertical cross sectional view of the lip stick case shown in Figures 1 to 7 and illustrating a suitable form of ejection and retraction mechanism.

In the example shown the body I of the case has a cylindrical shape. It is closed by a cap 2 shaped, for instance, as a dome surmounted by afrusto-conical extension sothat it may beta-kenand handled more easily. Near its lower edge the*cap 2 (Figure 2)'= is provided with a; groove ii -intended" for insuring'its fixationiin the. closing position as will be-explaincd' latenon;

Inside the case I is located the cylindrical cover 4 of the.- device provided witha helical groove which determines thedisplacements" of the socket carrying: the lip-*stick 5; The inner construction of such adevice is well known and will notbe--described particularly here; According to'-0ne'- of theparticularities of theinvention the fixation-and the centering of the cover 4; in the body Y I of-the case are insured by means of an intermediary jacket 6 forced into: the-body l and fitting-the inner surface-oi the latter. ,said jacket' (see Figure 3) is provided onits upper part with three female teats or humps chasedin its thickness and engaged by three corresponding male teats orseats 8=- formed on' the-wall of thecoverl (Figure 6') Three other femal'e teats -9 similar to the preceding ones are-provided for-'- about the lower part of the jacket fi andcontribute to'.thecenteringof the cover 4'. In" order to allowthe-mounting -of the helical deviceintothe jacket and the engage ment of the male teats 8 into the female teats T; the said jacket is slit on its'whole length, both edges ma; lllliof-thesaid slot (Figure-3) being provided with' complementary interhooking elements exactlyfitting one-another in order to avoid any shifting-of the basic" curves of the jacket. The disassembling of the device can be effected by inserting 'betweenthe cover 4fandthe jacket 6" asocket comprising threebayonet notches spaced from another by distances 'correspendingto those of the centering teats 9 and coming into" contact withthe" latterwhich they then enclose; one then only has to exert a pull on said socket to bring the whole device out of the body of the case.

On its upper edge the jacket 6 is, furthermore, provided with slots extending along generatrices and forming three elastic blades II respectively showing, about at half-length, a projection 12 extending inwardly. The projections l2 lie on the same circumference and are disposed so that they yield when the lower edge of the cap engages the case and then engage the groove 3 of the said cap under the thrust of the blades H which carry them, thus locking the said cap in the closing position (Figure 5).

The rotary bottom I3 serving in the usual manner to control the working of the device provided with a helical groove has a diameter which is slightly greater than that of the cover 4 of the device and it projects only very slightly on the lower part of the case I, as may be seen from Figure 1. The said bottom offers a slight conicity extending downwards and to which corresponds a conical bore l4 provided on the lower edge of the cap 2 so that the latter can fit the said bottom as shown in chain dotted lines in the lower part of Figure 6, without exceeding the height of the said bottom.

The Whole working of the so formed case clearly results from the above given explanations. In order to use the lip-stick one pulls the cap 2 closing the case so as to set free the opening of the latter; the cap is then fitted into the clearance surrounding the bottom member l3 and onto the bottom l3 and one twists it like a fountain-pen, this latter operation causing the lip-stick 5 to project up to the desired height (Figure 7). After use the cap is rotated in the reverse direction in order to drive, back the lipstick whereafter it is removed from the bottom i3 and replaced on the opening of the case I by pushing till the projections l2 of the elastic lugs l l engage the groove 3.

Any suitable known kind of device for effecting ejection and retraction of the lip stick may be provided, for example, the cover or sleeve i may house a helical groove mechanism as shown in Figure 8. This mechanism comprises a stick carrier or socket 4 which fits telescopically in a tube 4 which is press-fitted on the bottom member [3. The stick carrier 4 is provided with a stud or claw l operable in a longitudinal groove it in the tube 4. extends into a helical groove H in a tube l press-fitted in the cover sleeve 4, previously referred to. Sleeve 4 is provided with three teats or humps 8 in its top quarter and envelops or covers the helical groove device.

The jacket 6 shown in Figure 3 is slotted along its entire length at I0 and 10 to enable it to be force-fitted within the .body I. The jacket is provided in its top quarter with three seats 1 adapted to receive the three humps 8 on the cover 4, for retaining the latter releasably inside the body I. The jacket is slotted lengthwise intermediate the seats I to provide the three spring tongues or blades ll each of which has a projection l2 as previously stated. The projections l2 are adapted to snap into the groove 3 of the cap 2 for locking the cap in closed position.

In operation, after the cap 2 is removed to open the upper end of the case, the cap is plugged from 'below on to the bottom member l3 and is turned by finger grip on the frusto-conical extension. When the parts 2, l3, and 4 are turned The stud also as a unit inside the structure formed by the parts I, 6, 4, and 4 the longitudinal slot I6 is displaced parallel to itself so as to rotate the pin I 5 about the axis of the tube 4 The helical groove H in the tube 4 which is fixed thereby causes the stud l5 and stick holder 4 to move longitudinally so as to project the stick from the case.

After use, the cap 2 is turned reversely while still on the bottom member I3 to retract the stick holder. Then the cap is removed from the bottom member l3 and is restored to its closing posi-' tion as shown in Figure 5, the projections [2 of the spring blades H engaging the cap groove 3 for retaining the cap in closed position.

What I claim is:

1. Ina lip stick case, a body open at its upper end through which a lip stick housed within the case can be projected; a cap for closing said open upper end of said body and having a lower edge portion of generally annular cross section having an uninterrupted smooth inner surface;

a bottom member housed within said body and being rotatable therein for effecting projecting of the lip stick through the open upper end of said body, the outer surface of said bottom member being uninterruptedly smooth and complemental to said inner surface of said cap, and there being a clearance around said bottom member and the inside of said body, said cap lower edge portion being of a size to be extended freely within said body by being moved axially with respect to said case and to fit over and closely and frictionally embrace said bottom member outer surface irrespective of the relative angular positions of said bottom member and said cap with reference to the axis of said case, to thereby effect a frictional rotation-transmitting driving connection between said cap and said bottom member.

2. A lip stick case as set forth in claim 1 in which the complemental outer surface of the bottom member and inner surface of the cap are of correspondingly conical shapes.

SOPHIE FRYDLENDER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 773,371 Brown Oct. 25, 1904 919,466 Ripley Apr. 27, 1909 1,849,531 Lyhne Mar. 15, 1932 1,953,251 Mitchell Apr. 3, 1934 1,994,074 Kendall Mar. 12, 1935 2,298,620 'Harris Oct. 13, 1942 FOREIGN PATENTS Number Country Date 715,889 France Sept. 29, 1931

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