US1999598A - Container - Google Patents

Description

H. D. LEVBNE CONTAINER Filed Deq. s, 1955 Patented Apr. 3i), i935 A UNITED STATES PA OFFICE .i yCNTAINER llarry'D. Levine, Philadelphia, Pa.

` Application December 6, 1933, Serial No. 701,177

11 Claims.

- Will also resist the chemical action of the hydrofluoric acid solution. p

y The object of my invention is to provide an inexpensive container which will have all the physical strength and durability of a metallic D container and Which will at the same ltime have .the .chemical resistance of the generally more resistant non-metallic substances, such as hard rubber, paran wax or the like.

With the above Vand other objects in View, my invention consists of `a container includinga layer of inert organic material in which is embedded a. sheet of perforated metal generally cgi-extensive with the Aorganic layer, and anouter imperforate metallic shell, and a quick-detachable closure member formed yof an acid resisting material. -l

`My invention further consists of other novel features ,of construction, all of which will appear more fully from the following detailed description.

For ,the purpose of illustrating my invention, I have Vshown in the accompanying drawing a form thereof which is at present preferred by meQalthough it is to be understood that the various -instrumentalities of which my invention consists can be variously arranged and organized, and that my invention is not limited to the precise arrangement and organization of the instrumentalities as herein shown and described.

Referring to the drawing in which like reference `characters indicate like parts, Figure l represents a perspective view of acontainer embodying my invention,

Figure 2A represents a similar perspective View, partly broken away to expose to view the interior construction of the wall of the container.

In making the container 3 of the present in` vention, I Vfirst form a can-like shell 4 of perforated sheet metal, having a cylindrical body l ,5, a bottom 6, a top l, both seamed to the cylindrical body 5 in any suitable manner, as for instance by the lock seam shown, and also preferably having a slight neck portion 8.

. The perforated sheet metal shell e, is then dipped in molten paraflin wax Vor other suitable acid-resisting organic material, until a suicient (Class 20G-e2) amount of the material is coated on to both sides of the perforated sheet metal and lls the openings in said sheet metal.

l An outer can-like body 9, of imperforate sheet metal is then formed, having a cylindrical body 5 portion lil, a top H seamed thereto, as at I2, by any suitable conventional searning method, and having a screw-threaded, flanged opening I3.

The perforated sheet metal shell 4, having a coating ifi of paraffin wax or other suitable acidl0 resistant material, is then inserted into the .outer housing 9, throughthe bottom end i5 thereof, before the bottom member i6 is applied to the cylindrical shell itl. Any clearance which may then exist between the outer surface of the par.- 15 an I4 and the inner surface of the cylindrical shell itl and the top Ii, is then preferably also filled with additional paraiin Wax or similar ma.- terial by pouring such molten material into the clearance or game-thereby completely iilling the 20 space between the perforated sheet metal shell 4 and the imperforate sheet metal shell 9, as indicated particularly in Figure 2. Thereupon the bottom I6 is applied and seamed to the shell l0 in anyv suitable manner-as for instance upon 25 a ,conventional capping machine, which forms the seam I l. l I

The `paralln Wax is then applied to the interior of the free end of the screw-threaded flange I3, so as completely to conceal the inner metallic 30 neck portion 8. A rubber gasket or washer, IB is then (applied and the hard rubber nozzle member i9 is then iirmiy secured onto the screwthreaded fiange i S, thereby completely concealing all metallic portions and providing a passageway 35 Ztl for the flow of acid ior acid solution without contact with any metallic portions.

The hard rubber nozzle member EB preferably terminates in a generally conical tip 2i having a suitable small opening 22 in its end and is also 40 provided with an external thread V3 adapted to" receive the correspondingly and internally threaded ,closure cap 24.1. rhe closure cap 2li preferably contains a small piece of soft rubber in its small end, which is adapted to bear against the aper- 45 tured tip of the nozzle i9, thereby to prevent the drippage of acid through the aperture 23 when the container is closed.

The container of the present invention is thus not only ideally suited for shipping and handling of hydrouoric acid or similar materials, but is also ideally suited for the application of such acid where needed.

Thus, the container of the present invention is also particularly adapted for use in laundries and similar industries, where small amounts of hydroiiuoric acid solution must be applied by operators. Thus, by removing the screw cap 24, the container may be handled in such a Way as to discharge small amounts, even drops, of the hydrofiuoric solution through vthe aperture 22, without danger to the operator or Without harm to the container.

It will be appreciated that the container of the present invention is particularly suitable because it resists physical strains as well as chemical reaction, and is not subject to breakage as ordinary wax or hard rubber containers are.

I am aware that my invention may be em` bodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative andnot restrictive, reference beingv had to the appended claims rather than to the foregoing description to indicate the scope of the inventio-n.

I claim:-

1. A container of the character stated, comprising an outer metallic shell, an inner body of a relatively soft acid-resistant, thermoplastic material of relatively low melting point, a relatively formretaining porous shell embedded in said thermo-plastic material, and a generally tubular discharge nozzle of a relatively hard and of a relatively higher melting point acid-resistant material, ailixed to the outer metallic shell;- said inner body of relatively soft acid-resistant thermo-plastic material extending into said outer metallic shell into operative juxtaposition to said discharge nozzle, so as to form a continuation of the internal discharge passageway -of said nozzle.

2. A container of the character stated, comprising an outer form-retaining shell, an inner body of a relativelyv soft acid-resistant, thermoplastic'material of relatively low melting point, a relatively form-retaining porous shell embedded in said thermo-plastic material, and a generally tubular discharge nozzle screw-threadedly attached to said outer form-.retaining shell;-said' 2 inner thermo-plastic material extending into the screw-threaded portion of said Vdischarge nozzle.

-3. A container of the character stated, com# prising on outer form-retaining shell and an' inner form-retaining shell, the former impermeable and the latter permeable, an acid-resistant material within said outer shell and extending to within said inner shell and permeating and concealing the latter, and a generally tubular discharge nozzle of relatively hard acid-resistant material screw-threadedly secured to said outer shell with the internal passageway thereof generally contiguous to said acid-resistant material and with the juncture between the two sealed against the passage of fluid through said juncture.

4. A container of the character stated, comprising an outer form-retaining shell having a generally cylindrical nozzle-receiving portion, an inner form-retaining shell in spaced relation thereto, an acid-resistant material intermediate said two form-retaining shells and extending to Within the inner form-retaining l shell and concealing the latter, and a discharge nozzle caijried by said nozzle-receiving portion of the container in operative relation thereto, formed of a form-retaining acid-resistant material having a melting point substantially above said rstmentioned acid-resistant material.

5. A container for corrosive liquids comprising an outer form-retaining shell including a metallic end-disc, a screw-threaded iiange extending from said metallic end-disc, a relatively soft corrosionresistant material lining the entire inside of said outer form-retaining shell, and extending into said screw-threaded flange, a relatively hard corrosion-resistant nozzle screw-threadedly secured to said flange, and means to form a seal between the nozzle and said corrosion-resistant lining material within said screw-threaded flange, thereby to shield said screw-threaded iiange from the liquid contents of the container.

6. A container for corrosive liquids comprising an outer form-retaining shell including a metallic end-disc, a screw-threaded iiange extending from said metallic end-disc, an inner form-retaining shell of permeable character within said outer shell and in spaced relation thereto and generally co-extensive therewith, a relatively soft corrosion-resistant material lining the inside of said outer form-retaining shell as WellY as the entire inside of said inner permeable shell and permeating the latter, and extending into said screw-threaded flange, a relatively hard corrosion-resistant nozzle screW-threadedly secured to said flange, and means to form a seal between the nozzle and said corrosion-resistant lining material within said screw-threaded flange, thereby to shield saidr screw-threaded flange from the liquid contents of the container.

'7.'A container for corrosive liquids comprising an outer form-retaining shell including a metallic end-disc, a screw-threaded iiange extending from said metallic end-disc, a corrosion-resistant material lining the entire inside of said outer form-retaining shell, and extending into said screw-threaded flange, a' corrosion-resistant nozzle having an internal screw-thread and being screW-threadedly secured thereby to said screwthreaded flange and having also an external screw-thread, and a corrosion-resistant cap adapted to be detachably secured to said nozzle by means of said external screw-thread on said nozzle.V

8-. A container for corrosive liquids comprising an outer form-retaining shell including a metallic end-disc, an inner corrosion-resistant lining completely lining said outer form-retaining shell and extending through said metallic end-disc in generally tubular formation, and a corrosionresistant nozzle secured to said end-disc and surrounding the portion of said inner lining which extends through the end-disc in tubular formation.

9. A container for corrosive liquids comprising an outer form-retaining shell having a metallic end-disc, an inner perforated metallic shell disposed within said outer shell in generallyv spaced relation thereto, and being generally co-extensive therewith; a corrosion-resistant material completely lining said outer shell and also completely lining said inner shell and permeating the latter, and a corrosion resistant nozzle secured vto said metallic terminal disc in sealed relation to said corrosion-resistant material Within said shells."

l0. A container for corrosive liquids comprising an outer form-retaining shell including a metal- Vlic end-disc, a screw-threaded flange carried by said metallic end-disc,`a corrosion-resistant material lining the entire inside of said outer formretaining shell, and a relatively form-retaining corrosion-resistant nozzle screw-threadedly -secured to said flange and covering one side of said flange;- said corrosion-resistant lining material covering the other side of said screwthreaded flange and extendinginto close proximity of said nozzle so as to shield said screwthreaded flange v,from the liquid contents of the container.

11. A container for corrosive liquids comprising an outer form-retaining shell including a metallic end-disc, a metallic flange carried by said metallic end-disc, a corrosion-resistant material lining the entire inside of said outer form-retaining shell, a corrosion-resistant nozzle having a basal flange in telescoping relation to said metallic 10 ange and secured thereto and having also an external screwthread;said corrosion resistant lining covering one side of said metallic flange and extending into close proximity of said nozzle so as to shield said metallic iiange from the liquid contents of the container, and a corrosion-resistant cap adapted to be detachably secured to said nozzle by means of said external screw-thread on said nozzle.

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