US2257919A

US2257919A - Container

Info

Publication number: US2257919A
Application number: US240334A
Authority: US
Inventors: Walter L Rutkowski
Original assignee: RC Can Co
Current assignee: RC Can Co
Priority date: 1938-11-14
Filing date: 1938-11-14
Publication date: 1941-10-07
Anticipated expiration: 1958-10-07

Description

Oct 7, 1941- w. l.. RUTKowsKl 2,257,919

CONTAINER Filed Nov. 14, .1938

i the curled lips on the top closure.

Patented .'Oct. 7, 1941 CONTAINER vrWalter Rutkowski, Normandy, Mo., assignor to R. C. Can Company, St. Louis, Mo., a corporation of Missouri Application November 14, 193s, serial No. 240,334 v (ci. 22a-5.7)

2 Claims.

This invention relates, generally, to the container art, and more particularly to a top closure for combined metal and paper containers.

The object of the present invention is to provide a top closure for container bodies, which can be appliedvto, and removed from the open top end of the container body with extreme readiness. Y

A further object of the invention is to provide friction connecting means between a skirt on the top closure and a reinforcing ring secured to the open top edge portion of the container body to firmly hold the closure upon and to the reinforcing ring.

A still further object of the'invention is a means of the character described, in which the removal of the closure from a container body will not serve to damage the friction connection means'Yor interfere with the replacement of the closure after-removal from the container body.

The invention possesses other objects and feay tures of advantage, some of which, with the foregoing, will be clearly apparent from the foregoing description of the preferred form of the invention, which is illustrated in the drawing accompanying and forming 4apart of this specication.

Referring to the drawing:

Fig. 1 is a top plan view of a container embodying the features vof the invention.

Fig. 2 is a top plan view of the container body with the top closure therefor removed, clearly showing the shouldered reinforcing ring for the top edge of the container body.

Fig. 3 is a side elevation of the container showing the top closure in position.

Fig. 4 is a bottom plan viewy of the removable top closure, a paper packing disk therein being partly broken away.

Fig. 5 is an enlarged detail, in vertical sectional elevation, taken on aline through one of the shoulders on the friction ring and one of Fig. 6l is an enlarged detail, n vertical sectional elevation, taken yon a line through the reinforcing ring and the skirt of the closure intermediate the shoulder on the reinforcing ring.

Fig. 7 is la detail, in inside elevation, of a section of the closure showing one of the curled friction lips. f

Fig. 8 is an enlarged detail of a portion of the reinforcing ring showing one of the elongated shoulders in front elevation.

Fig. 9 is adetail, in vertical sectional elevation through one of the friction shoulders formed on the reinforcing ring.

Fig. 10 is a side elevation of the shouldered reinforcing ring on the upper end of a paper container body.

Referring to the drawing, the reference char- .acter A designates a suitablecontainer body,

erally, a sheet metal closure for the ring reinforced open top edge portion of the container body A.

The reinforcing ring B isv channeled, or sub- 'stantially U-shaped, in crosssection,. and is secured to the upper end portion of the container body A by crimping the same thereto. The channeled ring B provides an inner wall portion I which engages the inner surface of the container body A, and anouter wall portion 2, which engages the outer wall surface of the container body A. 'The channel between the inner wall portion I and outer wall portion 2 provides a pocket to receive the upper end portion of the container body A. The upper portion of the ring, which unites the two wall portions l and 2, serves to provide a metal seat 3 for the removable closure D for the upper open end of the container. body A. y

A plurality of spaced elongated protuberances forming shoulders l and having lower horizontal friction surfaces 5 projectoutwardly from the surface of the outer wall portion 2 of the reinforcing ring B, thereby leaving a gap or space 6 between the ends of each shoulder 4.

The closure member D for the open top end of the container body A, comprises a thin sheet metal body, or top portion 1 and a skirt portion 8. A central part of the top or body portion 1 of the closure D is shown as depressed upwardly to form a dome shaped closure, although not necessarily so. A suitable packing disk 9 is disposed within the closure member D, although the packing member 9 can be eliminated, if desired. The lower edge portion of the skirt is folded inwardly and upwardly to lie against the inner face of the skirt portion 8, at spaced intervals, as at I0. The remaining spacedportions of the skirt fold are curled inwardly to form a plurality of tubular lips II having suitably shaped upper friction surfaces l2 and with the ends of the upper sur- In applying the closure member D to the reinforcing ring B, the closure is -so initially positioned thereon as to cause the curled lips Il to register with the gaps, or spaces 6 between the ends of each pair of ring shoulders 4. When the closure member D has been thus positioned to rest upon the ring seat 3, the operator turns the closure member D by hand, in either direction, causing the skirt lips II to climb the lower friction surfaces of the ring shoulders 4, thereby drawing or pulling the disk packing 9 mounted within the closure member tightly into intimate contact with the seating surface 3 of the reinforcing ring B and holding the closure member D securely in position on the seating ring to close the open top of the container body A.

The ring shoulders 4 and the closure skirt lips II tend to hold the closure member against accidental rotary displacement upon the reinforcing or seating ring B, due to frlctional contact of the upper friction surfaces I2 of the elongated clos-` .It is to be understood that the upper and lower surfaces of the rolled skirt lips II may be parallel with each other, if so desired, instead of the up- The many advantages of the herein described invention will readily suggest themselves to those skilled in the art to which the invention appertains.

From the foregoing description, it is evident that a simple device for this purpose has been disclosed, but it is to be understood that I do not desire to restrict, or-limit myself to the very details of the construction shown and described, which is merely illustrative, it being obvious that changes, not involving the exercise of invention,

may be made without conflicting or departing from the spirit of the invention within the scope of the appended claims.

What I claim is:

l. A container having, in combination, a tubular paper body, a sheet metal closure secured to the lower end o'f the body for closing the. same, a channeled sheet metal ring secured to the upper edge of the body, elongated protuberances struck outwardly from the outer wall of the channeled ring and spaced from each other, a removable sheet metal top closure, said closure having a skirt flange, said flange having an inwardly rolled lower edge, and said rolled edge beingr flattened out at spaced intervals corresponding to the elongated protuberances and of a length at least equal to the length of the corresponding protuberances to facilitateseating of the top closure upon the sheet metal ring and removal therefrom, and to allow the closure to be turned in either direction to frictionally lock the curled edge. portions of the skirt to the elongated protuberances on the channeled ring.

2. A container having, in combination, a tubular body of paper material, a sheet metal reinforcing ring having inner-andy outer walls enper surface I2 being slightly inclined from one A end to the other, as shown in Fig. 7, or, is desired, when the upper and lower surfaces of the rolled skirt lip I I are parallel with each other the lower surface of the ring protuberances 4 can be-slightly inclined. However, in either instance, the clos- I vand the closure can be quickly and easily applied hand.

to and removed from the reinforcing ring by gaging the upper end of thebody, a plurality of spaced elongated protuberaces struck outwardly from the outer wall of the ring and forming spaces between the ends of the protuberances, a removable top closure for said container adapted to seat upon said ring, the top closure having a skirt provided with an inwardly rolled lower edge with portions ofthe rolled edge flattened out at spaced intervals against the skirt to provide a double walled skirt at such intervals, said fiattened out portions corresponding to the elongated protuberances and of a length at least equal to the length of the corresponding protuberances for locking the top closure to the ring upon partial rotation of the top closure.

l WALTER L. RU'I'KOWSKI.