US2304521A - Method of closing - Google Patents

Description

Dec. 8, 194-2. J v WUESTMAN 2,304,521

METHOD OF CLOSING Filed Jan. 15, 1941 INVENTOR.

' cfasgvz Meaiwazz,

BY 57 ATTORNEY.

Patented Dec. 8, 1942 UNETED STATE? FAT .bi'l @EFEICE.

1 Claim.

This invention relates to pencils, pens or like styliform devices having incorporated therein advertising display means of the general character disclosed in my prior Patent No. 2,264,194; and the invention has reference, more particularly, to an improved construction of advertising display means for incorporation in pencils, pens and like styliform devices and to a novel method of producing the same.

Advertising display means for incorporation in pencils, pens and other styliform devices according to this and my prior invention disclosed in my aforesaid copending application for letters patent comprises, generally, a transparent "chambered section having closed ends, the in- 'terior of which is filled with a transparent liquid,

within which stationary and a movable advertising elements or either alone are submerged. The transparent liquid functions to somewhat magnify the advertising elements, and, in the case of movable elements, controls the speed of movement thereof under gravity. In order to assure proper functioning of the liquid in these respects, it is essential that all air within the chamber be evacuated and replaced by the liquid, to the end that no air bubble will be formed and left within the chamber and its liquid content, with resultant interference with desired magnifying effect and likelihood of distortion of the visual appearance of the advertising elements, or loss of movement control of those advertising elements which are free to gravitate through the liquid.

Having these things in view, the instant invention has for an object to provide a novel con- 'struction of means for closing the transparent chambered section of the advertising display device with air evacuating effect; the invention also involving a novel method of manipulating and assembling said closing means so as to attain such end.

Oher objects of this invention, not at this time more particularly enumerated, will be understood from the following detailed description of the same.

Illustrative embodiments of this invention are shown in the accompanying drawing, in which:

Fig. 1 is in part an elevational view and in part a longitudinal sectional view of a pencil having the improved advertising display means embodying one form of closure means operative upon application thereto to evacuate air therefrom.

Fig. 2 is an enlarged fragmentary sectional view of the upper end portion of the transparent chambered section of the advertising display means, showing one form of air evacuating closure means before assembly therewith; Fig. 3 is a similar View showing the first step in assembling the air evacuating closure means; and Fig. 4 is a similar view showing the completed assembly of the air evacuating closure means,

Similar characters of reference are employed in the above described views, to indicate corresponding parts.

Referring to the drawing, the advertising display means of the invention is, by way of illustration, shown as applied to a mechanical penoil. In said drawing, the reference character l0 indicates the barrel of the pencil, to the upper end of which is affixed the transparent chambered section of advertising display means. This chambered section comprises a tubular and preferably cylindrical body member H made of any suitable transparent material, such as glass or a transparent plastic material, preferably the latter. Said body member II is .closed and sealed at its lower end by bottom plug 12, which is inserted and suitably secured therein, preferably by ce- 'menting the same to the walls of said body member. The lower end of said body member II is provided with a reduced portion for insertion into the upper open end of the pencil barrel I0. Pref- -erably this reduced portion is provided with external screw-threads I3 to screw into said upper end of the pencil barrel it, which, in such case, is internally screwthreaded to receive the same.

Suitably arranged within the interior of the chambered section 6 I are the advertising elements to be displayed. As shown in Fig. 1 for the purpose of illustration, but not by way of limitation, said advertising elements comprise, a stationary element M and a movable element I5. Illustratively, the stationary element, as shown, has the external appearance of a tooth paste, soap or other paste tube which is suitably aflixed against movement in desired predetermined position with the-chambered section, as e. g. by cementing the same to the bottom of said chambered section; the movable element has the appearance of paste to be extruded from the stationary element, whereby when the pencil is inverted, said movable element, under gravity, may move outwardly of the interior of said stationary element to give the illusion of paste in process of extrusion therefrom. It will be understood that the advertising elements are subject to wide variation in form, make-up, appearance and number, and may comprise any form of relatively movable elements, or combinations of stationary and movable elements, or stationary or movable elements alone.

The interior of the chambered section II is filled with a transparent liquid [6, such, e. g., as a light transparent oil, in which liquid the advertising elements I4 and [5 are submerged. The transparent liquid IS, in conjunction with the transparent walls of the chambered section II, not only permits the advertising elements to be observed, but also act with magnifying effect thereupon. The liquid l6 also acts to control gravitation of the movable advertising element in such manner as to offer some resistance thereto, whereby the movement is so controlled as to be retarded, thereby to assure a desirable comparatively slow or gradual movement.

After the transparent liquid l6 has been introduced into the interior of the chambered section II, means are provided for closing and sealing the remaining or upper end of said section; said means being of novel character calculated to assure complete evacuation of air from the interior of the chambered section, and its replacement by the transparent liquid, free from undesirable and, in fact, detrimental air bubbles.

Means for closing and sealing the open end of the liquid charged chambered section H with air evacuating effect, as shown in Figs. 1 to 4 inclusive, comprises, the provision in the wall of said chambered section II, adjacently below said open end thereof, of a discharge orifice l7, preferably disposed to incline upwardly and outwardly from the interior of said chambered section. When the transparent liquid [6 is introduced into the interior of the chambered section II, the same' is filled therein to a point above the level of the inner end of said orifice 11 (see Fig. 2). The closure per se comprises a plug means, which, upon insertion in the open end of the chambered section, will contact with the liquid 16 and by downward movement thereupon will force any trapped air and the excess liquid outwardly through the orifice I1, and as it passes the latter will close the same, thus preventing the trapping of any air within the chambered section, and consequently assuring complete evacuation of air and its replacement by the liquid, in such manner that the enclosed body of the latter is entirely free from undesirable and detrimental air bubble formation. Preferably the closure plug means comprises a two-part structure, consisting of a primary or inner disc or plug l8 and a secondary or outer closure plug I9 (see Fig. 2). In applying this form of closure plug means, the primary or inner closure disc or plug [8, which is of a diameter to afford a tight sliding fit in the bore of the chambered section II, is first entered through the open end of the chambered section II and pushed downwardly through the bore thereof into engagement with the liquid l6, against which it is pushed, whereby trapped air and excess liquid is evacuated through the orifice I! (see Fig. 3). Downward movement of said primary or inner closure disc or plug [8 is continued, with continuous excess liquid discharge, until the side of the same completes movement across and thereupon closes or shuts off the orifice I! from communication with the interior of the chambered section II (see position of disc or plug l8 shown by broken lines in Fig. 3). In this manner, the upper end of the chambered section II is closed to confine therein a totally filling volume of liquid I6 free from air bubble formation. After the primary or inner closure disc or plug 3 is thus moved into operative assembled relation to and within the upper open end portion of the chambered section II, the

cavity 20 left above the assembled disc or plug 3 is thoroughly washed out with a suitable cleansing agent to free the exposed surfaces thereof from any traces of the oil or other liquid I 5, whereupon a suitable cement 2| is applied within the cavity, and then the secondary or outer closure plug [9 is inserted into the latter soas to be tightly bound and sealed therein and to the primary or inner closure disc or plug [8 by the cement 2| (see Fig. 4).

Preferably the thus closed upper end of the chambered section II is finished by application thereto of an external finishing cap 22. To this end said chambered section (as shown in Figs. 1 to 4 inclusive) may be provided at its upper end with an externally screw-threaded neck 23 of reduced diameter onto which the finishing cap, which is correspondingly internally screwthreaded, is screwed and secured. If desired, a safety clip element 24 may be operatively assembled with the device, by inserting its annular base 25 over the neck 23 to seat upon the shoulder 26 at the juncture of said neck with the body of said chambered section, and so as to be clamped thereto by the finishing cap 22 when the latter is screwed onto said neck 23 (see Fig. 1).

I claim:

A method of closing the open end of a transparent chambered body of the kind described which contains a transparent liquid, whereby to prevent air bubble formation in said liquid content, said body having a discharge orifice spaced downwardly from the extremity of its open end, said method comprising forcing the entire body of a closure disc into the open end of said body and against the fluid content thereof whereby to discharge air and excess liquid through said orifice until said disc covers and closes said orifice, thereafter washing out the interior of the open end of said body above the thus inserted disc, then coating said open end interior of the body and exposed surface of the inserted disc with cementitious substance, and finally inserting a closure plug into said open end interior of the body to be secured by said cementitious substance in sealed relation to said body end and disc.

JOSEPH V. WUESTMAN.

Images