This invention relates to a flexible adhesive fastener for filing papers, introduced in my U.S. Pat. No. 5,169,254, dated Dec. 8, 1992, and my U.S. Pat. No. 6,447,196, dated Sep. 10, 2002.
A group of relatively small superposed and flexible adhesive fasteners are mounted in a flap-like manner, along the central top edge of a file folder panel. A strip of contact adhesive on each one of the adhesive fasteners engages the upper section of a paper to be filed.
This method of mounting papers in a file folder avoids the need to punch holes in the papers. A paper is filed more quickly. There is no need for use of a two-hole punch. Any one paper alone can be removed from the file without disturbing any other file papers.
The prior adhesive fasteners were two-hole punched and placed on the prongs on a conventional paper file folder prong fastener. The adhesive fasteners are rectangular, paper-thin plastic pieces. Each of the adhesive fastener pieces have a longitudinally extending commercially available contact adhesive tape. The tape has a permanent type contact adhesive which holds the tape to the adhesive fastener surface. The other lower surface of the tape has a medium tack contact adhesive which engages a paper to be filed. Previously, the medium tack contact adhesive surface was covered by a removable covering piece which was removed immediately prior to inserting the paper to be filed.
The medium tack adhesive provides sufficient strength to securely hold a paper in the file. The medium tack contact adhesive also permits a given adhesive fastener to be quickly peeled free of the file paper to which it is attached. Unlike a prong mounted file paper, a single adhesive fastener file paper alone can be removed individually from its adhesive fastener. None of the other papers in the file must be removed.
But the cost of the fasteners, dependence on a metal prong for support of the fasteners, difficulty in separating the adhesive fastener to be used, and removal of the small contact adhesive covering strip, prevented to wider use of the adhesive fastener.
The original adhesive fastener design has found a small niche market where the fasteners are used to file papers that should not be two hole punched. The adhesive fasteners previously were mounted individually on conventional metal prongs.
With the realization that smaller adhesive fasteners could adequately hold papers, and that a packet of fasteners could adequately support a group of papers without relying on conventional metal prongs for support, other specialized uses, as well as the possibility of more acceptance for general filing were possible.
With a new product, convenience and utility factors must substantially outweigh the cost of its use.
This invention is directed to providing substantial improvement in convenience and use of an adhesive fastener, and lower fastener costs.
This invention provides an adhesive fastener assembly which will have greater general acceptance of adhesive fasteners for filing papers. It provides faster and easier adhesive fastener filing of papers than previously. There is no longer a need for a contact adhesive covering piece. Manufacturing the adhesive fastener packet of this invention is less expensive. The thin adhesive fastener packet can be used in both conventional file folders, and in thin, flat binders.
Papers are filed by merely pressing up the bottom edges of the file adhesive fasteners with a fingertip, and then inserting the paper to be filed. There is no need to remove and dispose of a contact adhesive covering piece.
The recognition that the last used adhesive fastener was anchored down by its file paper, and could be used as a separating and contact adhesive covering piece for the adjacent unattached adhesive fastener above it, is both the basis for the new adhesive fastener packet design and filing method.
Placement of a non-adherable surface on each adhesive fastener in alignment with the contact adhesive on the adjacent adhesive fastener permits successive adhesive fasteners above the last used adhesive fastener to immediately receive and engage the next paper to be filed.
The interaction of adjacent fasteners eliminates the need for a separate adhesive covering piece for the contact adhesive surface of each adhesive fastener.
Merely the upward fingertip flip of the adhesive fasteners above the last filed paper allows for immediate insertion of the next paper to be filed. There is no cover piece to be removed from the fastener contact adhesive. Removal and disposal of the contact covering piece had been a nuisance.
Additionally, the simplified construction of the adhesive packet assembly reduces costs. Material and production costs are important considerations for a product where the purchase price must be nominal.
The adhesive fastener assembly of this invention enables papers, brochures, and notes, to be slipped into place and also individually removed when desired. In this respect, the adhesive fastener assembly of this invention can provide a flat, thin binder, which is easier to use than conventional 3-metal ring binders currently on the market.
The fingertip engagement separation step for paper filing, and substantial reduction in expense for an adhesive fastener, will permit its entry into the general retail market.
These and other further advantages will become apparent from the following description of the invention.
The dotted outline 18 shows the adhesive fastener outline which would ordinarily be occupied by the previous adhesive fastener designs, which are mounted on conventional metal prongs. The adhesive fastener packet of this invention, generally indicated at 20, is firmly attached to the backing panel 12 at its central section along the upper edge 14. Significantly, it is half the length of the previous prong mounted adhesive fastener.
The new adhesive fastener packet 20, permits the file paper 16 to be mounted within the confines of the panel without extending below the bottom edge of the adjacent panel 11. The adhesive fastener packet is sufficiently strong to hold the papers firmly in position without permitting any skewing or misalignment.
The detailed construction and mounting arrangement of the adhesive fastener packet 20 is shown in
Referring to
A strip of five-eighths inch wide non-adhereable tape 24 has a permanent contact adhesive on its lower surface adhered to the upper surface of the adhesive fastener 22. The strip of tape 24 extends longitudinally across the central section of fastener 22. The upper surface of the non-adhereable strip of tape 24 has a non-adhereable surface for example, a silicone coating to which contact adhesive will not adhere.
The open horizontal area 25 between the release tape 24 and the one quarter inch wide reinforcing tape strip 23 is slightly less than a quarter of an inch wide. It provides a flexible longitudinally extending composite-bending section 23, 25.
A two-sided strip of contact adhesive tape 26 slightly more than one-eighth inch wide, is disposed on the undersurface of fastener 22 and is aligned with the non-adhereable strip of tape 24. It has a permanent high tack adhesive (about 25 ounces) on its upper surface which is adhered to the undersurface of the fastening piece 22. It is disposed immediately under and in alignment with the non-adhereable strip of tape 24 on the fastener upper surface. The contact adhesive tape undersurface has a contact adhesive coating 26a of medium tack adhesive. The medium tack contact adhesive is preferably in the range of approximately 8 to 16 ounces.
The strip of contact adhesive provides a long and narrow line of contact adhesive about one eighth of an inch wide. This line of contact adhesive 26a provides adequate adhesive capacity to prevent the file paper from either being pulled out of the file, or from peeling away from the adhesive fastener when the file papers are folded back over the top of the mounting panel 12. However, when the adhesive fastener is pulled upwardly away from the surface, perpendicularly from the surface of the filed paper, to which the fastener is attached, the adhesive readily disengages, permitting the file paper to be removed.
When the identical adhesive fastener pieces are assembled and aligned above one another as a packet 20, the contact adhesive layer 26a rests on, and is covered by the corresponding release surface of the adjacent adhesive fastener below it.
The intermediate section 28 between the non-adhereable strip of tape 24 and the top section 30 is approximately one-half inch wide, and provides a bendable hinge section. The adhesive fasteners are held together in a stack by double coated high tack one quarter inch wide tape 32. The fasteners are stacked and aligned in superposed position as shown in
The lower most adhesive fastener 42 has the free upwardly bendable section. The medium tack contact adhesive coating 46a of tape 46 is in engagement with the upper central section of the file paper 16. The non-adhereable strip of tape 44 on adhesive fastener 42 is aligned with the contact adhesive tape 56 of fastener 52 (
There is no need for a covering strip on the medium tack adhesive strip of an adhesive fastener. When the fasteners are separated from each other to receive a file paper, the adhesive that is to engage the file paper is also immediately exposed and is ready to engage the surface of the file paper. See
This arrangement eliminates the prior need for a separate cover piece for the contact adhesive. In this event, the contact adhesive is immediately exposed.
Previously, when the adhesive fastener to be used was bent upwardly to permit insertion of the file paper, it was necessary to remove the release tape covering strip which covered the contact adhesive coating. This invention recognizes if there is a packet of aligned fasteners, the release cover piece initially required, for the adhesive strip, can be eliminated. By aligning a release coating surface on the underlying adhesive fastener with the contact adhesive on the adhesive fastener above it, a cover piece for the contact adhesive surface is unnecessary.
This invention also recognizes that, for the user, the separation of the lowermost unattached fastener could be simplified. It was realized that the lower fastener, with the contact adhesive, is held down by the file paper to which it is attached. When the adhesive fastener above it is raised it provides space for insertion of the new paper to be filed. It also exposes its contact adhesive surface. It was subsequently recognized also that the free end section of the lower attached adhesive fastener could simply be bent up to bring about separation of these two fasteners, and exposure of contact attached adhesive in a simple push upward on the free end section of the lower adhesive fastener.
This construction avoids the need to reach under the raised adhesive fastener to remove the cover strip on the contact adhesive surface. The need to remove such a strip before the adhesive fastener could be affixed, was a major nuisance and drawback to general use of the previous type adhesive fastener.
It was an additional nuisance to dispose of the removed cover strip itself. The elimination of the need for removal of the cover strip is a major simplification for the user.
Further, the ordinary adhesive fastener itself is a thin flexible plastic, such as polypropylene or acetate about the thickness of a sheet of paper, two (2) mils. The fastener has a longitudinal length of about one and three quarter inches. Separation of one adhesive fastener from another was not previously quick and immediate. To expedite finger engagement and separation, the free end of the fasteners was thickened by the application of a strip of adhesive to the free, bottom end of the adhesive fasteners as shown at 23, 43 and 53. This provides a stiff section 43 that is bent up to push up the fasteners above it. The section preferably is no more than one-half inch so that it does not foul the contact adhesive of the adhesive fastener above it when it is bent up to separate the adhesive fasteners.
The back of the finger is used to press in and up against all of the free ends of the adhesive fasteners, including the lowest and attached adhesive fastener 42, as shown in
This simple single action presses up all of the adhesive fasteners, and lifts the adhesive fastener 52 and its adhesive strip 56 free from the non-adhereable tape 44 (to which is does not adhere), as illustrated in
As discussed previously, the strip of tape 23 of the free lower end of adhesive fastener 22 gives some additional thickness which makes is easier for the user to engage with the fingertip, since the adhesive fastener is only about 2 mils thick. The strip of binding tape 29 has two layers 29a of high tack adhesive, one on each side, to hold the adhesive fasteners together along their top section, as previously discussed.
The differential dimension 27 is necessary to ensure that misalignment during the course of assembly will not cause any of the adhesive 26a to extend beyond the surface of the adjacent underlying non-adhereable non-stick coating of the adjacent adhesive fastener. This is similar in construction for all of the fasteners previously described with respect to
Similarly, a contact adhesive coating layer 97 could also be applied to the underside of adhesive fastener material, instead of a contact adhesive tape.
The strip of contact adhesive 97 could either be continuous or a series of discontinuous dots or blocks. It has been found that for a slightly less than a two inch length adhesive fastener, a one-eighth inch to one quarter one-quarter inch width of contact adhesive is sufficient for file use. The shorter length of a two inch strip of contact adhesive disengages from a file paper immediately on a small tug on the lower free end of the fastener. This modification, where a coating of non-adhereable material, and coating of contact adhesive to the fastener piece is less expensive than the tape strip. It also simplifies the manufacture process.
The high tack permanent adhesive layer 35 on the undersurface of the label 34 is covered by a removable paper release liner 40. Note that the label section 38 extends above the top section 30 of the adhesive fasteners. The upper section 38 of the label 34 is bent over and around the mounting panel as shown in
The adhesive fasteners of this adhesive fastener packet are all identical to the upper fastener 120 has is typical for all. The lower surface of the adhesive fastener 120 a longitudinal discontinuous adhesive strip. It has two spaced patches 125 and 126, of a contact adhesive coating adjacent each side of the adhesive fastener 120. It extends along the lower edge of the upwardly bendable section of the fastener 120. The upper surface of the adhesive fastener 120 has either a non-adhereable coating layer, or a strip of non-adhereable tape. The staples 130 and 132 pass through all of the adhesive fasteners as well as the label (not shown) to hold the adhesive fastener assembly together. In this modification, the intermediate double-sided permanent tapes (i.e., tape 32) joining the top edge sections of the previously discussed, fasteners is omitted. This simple construction is also possible, and is within the scope of the invention.
The versatility of the adhesive fastener packet of this invention is illustrated by the new type of flat ringless paper binder shown in perspective
The two side panels 152 and 154 are flat rigid pressboard or chipboard panels. They are joined together at their center edges 153 and 155 by a narrow pressboard strip 156. The two panels and the now center strip are jointed together by a tape 158. The tape wraps around the outer surfaces along the edges of all three pieces to hold them together. The tape provides a hinge arrangement at the edges 153 and 155. A similar tape arrangement is applied to the inner surface of the pressboard pieces.
The inside of the binder is shown in the plan view of
The adhesive fastener packet 160 and 170 are shown extending outwardly from the center of the binder assembly panels and joining file papers 164 and 174. Fastener 175 is shown bent over at 176. Because of the shorter length of the new adhesive fastener packets, the adhesive fastener 175 readily bends over at 176 so the paper 174 lies flat and the turned over page surface shows, in much the way of a page in a bound book. The arrow 177 shows the arcuate path of the turned page 174. This permits the attached page 174 to be viewed on both its sides. Page 178 which ordinarily underlies the page 174 is undisturbed and lies flat against the panel 179. Each of these pages are held in their normal position in the binder independently, unless like page 174 they are also turned over.
This adhesive fastener assembly, is a thin, flat binder assembly which can be conveniently carried and stacked. This is in contrast to the angular, bulky configuration of the wider typical ring binder. This new flat ringless binder is about one-half inch wide and has a capacity of about 100 sheets, and takes up less shelf space. Multi-page brochures, and stapled pages can be attached as one and are securely held. In this respect the adhesive fastener binder is very handy for a salesman or others in the field. The binder is small and compact, and no hole punching is required for fastening papers, either large or small. Papers can be effortlessly slipped into the binder or removed.
While this invention has been described as having a preferred design, it is understood that it is capable of further modifications, and uses and/or adaptations of the invention and following in general the principle of the invention and including such departures from the present disclosure as come within the known or customary practice in the art to which the invention pertains, and as may be applied to the central features hereinbefore set forth, and fall within the scope of the invention or limits of the claims appended hereto.
This application is a continuation-in-part of U.S. patent application Ser. No. 10/685,529, filed Oct. 16, 2003, now abandoned.
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4822074 | Hueffman et al. | Apr 1989 | A |
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Number | Date | Country | |
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Parent | 10685529 | Oct 2003 | US |
Child | 11395311 | US |