US 2165539 A
Description (OCR text may contain errors)
y 11, 1939- 1H. T. DAHLGREN 2,165,539
PACKAGE Filed May26, 1937 I N V ENTOR.
HAROLD T DAHLGREN Patented ll, 1 939 slash PACKAGE Harold T. Dahlgren, Chicago, 111., assig'nor to Teletype Corporation 'tion oi Delaware Chicago, 11]., a corpora- Application May '26, 1937, Serial No. 144,881
This invention relates -to article handling, and particularly to the packing. Storing, and shipping of articles.
An object of the invention is'to supportand retain articles fixedly and out of contact with each other by such means as will aiiord ready removal of the article for use.
Another object of the invention is to provide.
containers affording easy access to the articles therein contained.
- The invention features the use of pressure sensitive adhesive material applied as a coating to the surface-by which articles are to be supported, I
whereby the articles maybe readily applied and removed.
The handling of small or delicate articles during manufacture, storage, and shipment is sometimes a source of considerable annoyance and ex-' pense, even to the point of actual loss of processed material. Small helical wire springs afford an outstanding example of such an article. They roll readily upon the slightest tiltingof the surface by which they are supported and become interentangled. In the handling of large 'numbers of these springs, unlessthey arekept out of.
contact with each other, they may form a tangled mass, the untangling of which may be more costly'than the value of the entangled springs. Attempted untangling of the springs mayresult in such injury to. many of them as will render them unfit for the use for which they are intended. Y
According to the present invention, the tendency ofsmall articles to roll or engage each other is eliminated by providing a sheet coated'with pressure sensitive adhesive material upon which the articles may bearranged. By lightly press ing the articles to the coated surface, they re-'- main for an indefinit period 01 time as arranged, anddo not come into' contact with each other. They may be removed from the sheet merely bylifting them therefrom, and none of the adhesive material adheres tothe articles when they are removed. The articles thus sufier no injury and the adhesive material is not impaired by having been used for this purpose; so that the adhesive coating sheet may be used re peatedly. The sheet 'to'which the articles have been applied mayfhe inserted into an envelope for stockr'oom storage or mailing.
In accordance with a modified form of the in vention, the adhesive material is carried by the inner surface of one wall of the'envelope in which. the articles are to be stored or shipped.
'The envelopeis preferably supplied as an unfolded blankso that the adhesive coated surface shall be exposed for easy application of the articles thereto. After the. desired number'of articles have been applied to the gummed surface, the enclosure is effected by folding the several portions of the blank and sealing the envelope. The sealing flap may also carry the pressure sensitive adhesive, which enables openlngof the envelope, as for inspection of the contents, and
rescaling, without destroying orinjuring flap or envelope.
For a complete understanding of the invention, and of the ma'nneriin which it may be practiced, referenc'e= may be had to the following description, taken in conjunction with the accompanying drawing, in which:
Fig. I is a perspective view partly broken away showing an envelope containing a gummed sheet having articles applied thereto;
, Fig. 2 is a perspective view partly broken away. showing an envelope having the inner surface of one wall thereof gummed to receive articles;
Fig. 3 is a plan view showing the blank from which the envelope of Fig. 2 is formed; and
Fig.4 is a plan view showing an envelope such as that shown in Fig. 1 having pressure sensitive adhesive material on the sealing flap.
Referring nowto the drawing, inwhich like reference characters indicate corresponding parts throughout the several-views, and" particularly to Fig. 1, reference numeral N indicates a sheet which is intended to support articles. may be of paper or cardboard, and maybe of any desired thickness. It may be made available as a previously prepared sheet of predetermined length, or the sheet material maybe supplied in the form of a roll, from which strips of the desired length may be cut as-needed; Sheet H has a surface coating 52 of pressure sensitive adhesive material.
The adhesive materialwith which sheet ii is coated: may be any of the well-known ad- Sheet I I hesivesthat are energized by pressure alone, require no solvent to render them efiective, remain adhesive indefinitely, acquire no permanent set,
deposit upon articles a minimum of adhesive upon removal of the articles from the adhesive surfaced sheet surface, and may be reused. In the preferred embodiment of the invention, the adhesi've coating i2 is of a rubber base composition such as that employed on paper used in painting operations as masks to protect portions of a surface from the application of paint orlacquer thereto.
The material of which sheet H is made my 5e limit, bond or parchmentizedpaper, or may be cardboard, but the sheet material most readily formation of pads or rolls of the gummed paper,
foreign matter in the form of fibers or lint shall not cling to the gummed surface uponthe separation of the two surfaces.
As shown in Fig. 1, sheet ii, if of flexible ma.- terial, such as paper, has the ends turned back upon'themselves as at l3, bringing gummed surface into engagement with gummed surface, which cling together with far greater tenacity than does the gummed surface toany ung'ummed surface. The reversely bent portions i3 impart transverse rigidity to sheet l I, eliminate exposed gummed surfaces at the ends which might tend to engage and cling to a container and make re--- moval diflicult, and afford surfaces by which the sheet may be grasped during handling, thus avoiding touching the adhesive, which, however; is not objectionable, as it leaves no trace of deposit upon hands or surfaces which it touches.
Sheet II with adhesive film l2 and reversely folded portions I3 is ready to receive the articles it is intended to support, which may be any small elements such as springs It. These are applied by pressing them lightly against the adhesive coating. The springs are thus held' fixedly in place and cannot become entangled. It has been found convenient to arrange the springs It on sheet I l in regular rows, as the counting of them for shipping, receiving, or inventory purposes is thereby facilitated. The arranging of the articles on the gummed surface may be rendered easy, and the counting of stored articles, as for inventory purposes may be simplified by providing on the adhesive coated surface rows of dots or other marks spaced apart such distances that one of the articles may be placed over each of the marks. A brief glance to note the number of visible marks is all that would be involved in inventorying the articles on a sheet. There remains only the operation of inserting filled sheet H into envelope l5, whereupon sealing flap it may be closed to effect complete protectionof springs I4 from dust or corrosion.
When it is desired to use springs ifi, sheet ii may be withdrawn from envelope i5 and springs l4 may be removed from adhesive coating i2 merely by lifting them therefrom. Since the rubber base adhesive does notacquire a permanent set, articles held therein are easily lifted free, and the lifted article carries with it no deposit of adhesive requiring removal.
'In Figs. 2 and 3 is shown a modified arrangement for holding small articles, in which one wall of a container carries thecoating of pressure sensitive adhesive. Referring particularly to Fig. 3, wherein there is shown the blank from which a container in the formof an envelope may be formed, numerals 2i and '22 indicate the walls of an envelope between which a crease is to be formed as along dash line 24. Wall 22 has integral therewith side fiaps 23 and and closing or sealing flap 25, and the formation of creases along dash lines 26 and 2'! establishes the flaps and brings them generally into envelope completing and closing condition.
Wall 22 is coated, as at 28, with pressure sensi- 1 arouses coated with adhesive, which, may or may not be the same adhesive applied to wall 22, depending uponconvenience and the circumstances under whichthe envelope is to be used. Thus, for example, if it is desired that the envelope, once having been closed and sealed, shall afford permanent-evidence of any tampering therewith, flaps 23 and/or flap is may be coated with moisture sensitive adhesive, such as is used in well-known mailing envelopes. Moisture sensitive adhesive acquires. a set upon drying, and opening of the flap or flaps without the use -of moisture results in permanent mutilation of the flap or envelope or both. If on the contrary easy access-to the contents of a scalable envelope is desirable, as for inventory purposes or for postal inspection, such access can be afiorded by coating flaps 23 and/or flap 25 with the same adhesive as that applied to wall 22. The manufacture of the blank is simplifled-by this procedure, in that all of the adhesive coating can be applied in a. single operation; Any of the'flaps that are coated with the pressure sensitive adhesive may be opened and rescaled repeatedly without destroying the adhesive or materially diminishing its adhesive qualities, and without mutilatin'g flap or envelope. The employment of reusable pressure sensitive adhesive on any of the flaps renders it desirable to fabricate the envelope blank of paper which does not have free surface fibers, in order that the envelope shall not become mutilatednor the adhesive surface of the flap acquire a scale of matted paper fibers due to repeated unsealing and rescaling.
The articles to be stored or shipped, such as springs M, are most conveniently applied to the adhesive coated surface 28 when the blank is in the unfolded, flat condition shown in Fig. 3.
1 depending upon the of adhesive used on the flap, whereby flap 25 is caused to adhere to the exterior of the completed envelope, which is shown in Fig. .2.
In Fig. 4 is shown a portion of envelope .3! with which envelope i5 shown Fig. i may be identical but which may be considered as representing generally any well-known envelope in which an object is to be enclosed by the sealing of a flap, such as for mailing. Envelopes of this type usually have moisture sensitive, non-reusable adhee sive on the sealingflap. It is proposed, in accordance with the embodiment-of the invention shown in Fig. 4, to employ a coating 32 of pressure sensitive adhesive, such as the rubber base adhesive material hereinbefore described, upon the sealing flap 33. A portion of the envelope 3l has been broken away, as along line 3%, to show that the envelope diflers from that shown in Figs. 2 and 3,
in that the inner surfaces of its walls do not carry adhesive,
As in the case of theenvelope shownin Figs. 2 and 3, it is desirable that envelope 3! be fabricated of material having surface characteristics such that the flap-may be sealed and resealed without appreciable diminution of. adhesion. f Y Envelope 3l may find utility in the reception and storage of unlimited varieties of objects or 1 articles such as files of papers or record cards for filing purposes. It is the general practice of vendors of tickets 'for such things as sporting events, concerts, and. theatrical performances, and of railway tickets, to deliver the tickets to the purchaser in an envelope. .The use of envelope 3! for such purposes affords protection, by sealing against loss of cards or tickets from the envelope while enabling easy reference to the contents as frequently as may be required or desired. The envelope may also find utility in the transportation of postal matter; For example, certain classes of objects maybe transported throughthe mails at low rates, provided that access to the contents of the mailing container can be readily gained for inspection purposes. Envelope 3| with resealable flap 33 would protect the contents from accidental escapement and loss, and would make postal inspection easy without subjecting the envelope to mutilation. r
The above enumeration of convenient uses for the envelope shown in Fig. 4 is'intended to be illustrative but not exhaustive, as there are many circumstances under which an envelope of this type may have conspicuous utility. It will be understood that the envelopes shown in the drawing need not, within the scope of thisinvention,.be of opaque material. They maybe .of transparent paperor cellulosic materlial, the
latter of which is well adapted to receive a m of pressure sensitive adhesive material, and is com}- mercially avail-able thus prepared. Envelopes of transparent material may receive anarticle carry-.
ing sheet, as in Fig. 1, or may have the inside surface of a wall thereof coated with pressure sensitiveadhe'sive material, according to the disclosure of Figs. 2 and 3. 'The articles applied to the adhesive would thus be visible through the wall of the envelope for display or inspection purposes.
Although specific embodiments of the invention.
and metallic article's adhesively held by said coating free of each other and capable of being removed without adherence of, any appreciable quantity of said coating thereto;
2. A package for small metallicarticles including a sheet having one side coated with a rubber base adhesive composition which remains tacky indefinitely and which acquires no permanent'set, and metallic articles adhesively held by said coatbeing removed without destroying the adhesive properties of said coating.
ing in mutually spaced relation and capable of morn 'r. mmoam'v. 35