US 1343724 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
E. F. HULBERT.
PAPER PACKAGE AND CLOSURE THEREFOR.
APPLICATION FILED MAY 23, I914.
Patented June 15, 1920.
UNITED STATES PATENT OFFICE.
EDWIN F. HULBERT, OF SOUTH NORWALK, CONNECTICUT, ASSIGNOR TO NATIONAL PAPER CAN COMPANY, OF SOUTH NORWALK, CONNECTICUT, A CORPORATION OF DELAWARE.
PAPER PACKAGE AND CLOSURE THEREFOR.
Patented June 15, 1920.
Application filed May 23, 1914. Serial No. 840,485.
To all whom, it may concern.
Be it known that I, EDWIN F. HULBERT, a citizen of the United States, residing at South Nor-walk, in the county of F airfield and State of Connecticut, have invented a new and useful Improvement in Paper Packages and Closures Therefor, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of th1s specification, in which- Figure 1 is a vertical section of my'improved closure,
Fig. 2 is a corresponding view showlng a portion of the can or paper receptacle,
Fig. 3 is a partial section showing the closure in place.
My invention relates to paper receptacles and more particularly to the filling opening or mouth of the receptacle which I stiffen and constrict by means of an inwardly rolled beaded edge. This inwardly rolled edge is particularly adaptable for cooperation with a removable plug closure for the receptacle.
In carrying out my invention I roll the end of the paper can receptacle at its mouth or filling opening inwardly to provide the inwardly rolled constricting bead. This roll may be made solid, although I prefer to form it hollow, as shown, to permit the rolled over portion to be-more readily compressed by the removable closure. If a closure is used, the closure is preferably made of slightly larger diameter than the beaded mouth of the receptacle so that the closure is frictionally retained.
In the drawings, referring to the Figs. 1 2 and 3; 2 represents a portion of a paper can shown as of cylindrical form and 3 the rolled over edge portion of the same. In forming the roll, the edge is turned back sufiiciently so that it is inclosed within the roll. The inclosing of the edge portion of the roll over is important in order to prevent its engagement by the closure when forced into place. The closure 4 preferably has a flanged edge portion 5 with the edge turned back under the fold, as shown, to prevent raw edges. The diameter of the closure is slightly greater than that of the internal diameter of the rolled over part of the body,
annular lip or flange of the closure resting on the top of the roll over edge portion of the body.
In Fig. 3 I have also shown how the inner end of the closure may be positively expanded, as at 6, by means of a suitable tool, so as to give a more positive securing action.
The advantages of my invention result from the simple, cheap and effective form of the end portion of the upper receptacle and the closure which afford a friction securing of the cap in place and avoid any engagement of the cap with the raw edge of the roll over.
Variations may be made in the form and arrangement of the roll over and the cap, the material of the can and closure may be paper, pasteboard or any similar fibrous substance or composition, and other changes may be made without departing from my invention.
1. A paper receptacle having an inwardly turned rolled-over end portion comprising at least one complete turn of the material and formingaconstricted mouth for the receptacle, there being a space between the layers of said rolled' over portion to permit expansion of the inner layer, and a removable friction closure adapted to be forced thereinto to expand the inner layer of the rolled-over portion, to retain the closure in position by the pressure exerted by the rolled-over portion, substantially as described.
2. A paper receptacle having an inwardly turned rolled over end portion with an inclosed edge and comprising at least one complete turn ofthe material and forming a constricted mouth for the receptacle, there being a space between the layers of said rolled over portion to permit expanding of the inner layer thereof, and a removable closure adapted to be forced therein to expand the inner layer of the roll, said closure being arranged to be held in position by the pressure of the roll and having the material at its edge folded back and under so as to conceal the edge of the material When the closure is in place, substantially as described.
3. A paper receptacle comprising an open ended body portion having an internal rolled beaded edge at its filling opening comprising at least one complete turn of the material rolled inwardly upon itself into a volute or scroll to form a stifiened constricted mouth for the receptacle, and a dished plug-like closure inserted through the constricted opening, said closure having an enlarged portion fitted beneath the internal rolled edge of the body portion and a flange fitting over the top of the rolled edge of the body portion; substantially as described;
4. A paper receptacle having an open ended body portion having an inwardly rolled beaded edge at its filling opening for the reception of a removable closure comprising at least one complete turn of the material r'olled inwardly on itself into a volute or scroll to form a stifiened constricted mouth for the receptacle; substantially as described.
5. A paper receptacle having an open ended body portion having the edge of the body material at the filling opening of the receptacle unsplit and rolled over on itself inwardly for at least one complete turn into a volute or scroll to form a stiffened constricted beaded mouth for the receptacle for the reception of a removable closure; substantially as described.
6. A paper receptaclev having an open ended body portion having the edge of the body material at the filling opening of the receptacle rolled inwardly on itself into a volute or scroll and forming an inwardly beaded stiffened mouth for the receptacle for the reception of a removable closure; substantially as described.
In testimony whereof, I have hereunto set my hand.
EDWIN r. HULBERT. Witnesses i MARION H. ROBERTS, JOHN B. LAWRENCE.