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US3165283A - Adhesive device - Google Patents

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Publication number
US3165283A
US3165283A US29661263A US3165283A US 3165283 A US3165283 A US 3165283A US 29661263 A US29661263 A US 29661263A US 3165283 A US3165283 A US 3165283A
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Prior art keywords
cup
device
adhesive
surface
mastic
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Expired - Lifetime
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Borisof Bernard
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Lectro-Stik Co
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Lectro-Stik Co
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F15/00Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
    • G09F15/02Bills, posters, or the like therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B47/00Suction cups for attaching purposes; Equivalent means using adhesives
    • F16B47/003Suction cups for attaching purposes; Equivalent means using adhesives using adhesives for attaching purposes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F1/00Cardboard or like show-cards of foldable or flexible material
    • G09F1/10Supports or holders for show-cards

Description

Jan. 12, 1965 B. BORISOF ADHESIVE DEVICE Filed July 22, 1963 FIEB ,FlE.E FIE 5.7

[7? 2/2 72 for r Ber/Ia I'd Borzlsaf p ffbrzze ys 3,165,23 Patented Jan. 12, 1965 3,165,283 ADHESIVE DEVICE Bernard Borisof, Chicago, 11]., assignor to Lectro-Stik Company, Chicago, Ill., a partnership Filed July 22, 1963, Ser. No. 296,612 7 Claims. (Cl. 24829) This invention relates to a removable and re-usable adhesive fastening device for holding posters, bulletins, decorations, and other similar articles on windows, walls, or any other surfaces.

It is customary to mount posters and signs with pressure sensitve adhesive tape. This requires two hands to tear off pieces of the tape, making it awkward for the user who is meanwhile attempting to hold the poster in position. If placed on the poster in advance, the pieces of tape often fold over and stick to themselves. Often, such tape undesirably comes loose from cold or wet surfaces due to the difference in expansion of tape and surface on which it is mounted. Otherwise, if it does adhere to a surface for a long time, the tape is difficult to remove, requires scraping with a-razor. In general, such tape cannot be removed from paper articles without tearing them. For mounting sales descriptions on merchandise,

' tape is unsightly and detracts from the appearance. Pressure sensitive tape is generally not re-usable, and it cost tends to be high, especially in school rooms where hundreds of items are hung on walls, windows and blackboard.

Tacks, thumbtacks, and staples are also used for supporting signs, posters, and similar notices. These fasteners have drawbacks in that they leave holes; and cannot be used at all on hard surfaces like glass, blackboards, or metal. Thumbtacks require soft bulletin boards, and are a hazard when dropped. Tacks and staples require tools to install and tools for removal. These fasteners require too much effort for putting up temporary memos in home or ofiice.

The present invention aims to overcome the above disadvantages by providing a new and better fastening device for holding posters, signs, bulletins, memos pictures, decorations, calendars, and other articles on walls, windows, or other surfaces.

It is an object of the invention to provide afastening device which may be readily placed in position, using only one hand, only finger-tip pressure, and requiring no tools.

Another object is to provide a fastener which will hold on glass, wood, metal, paper, paint, cloth, or any other surface, whether hard or soft, or rough or smooth.

Another object is to provide a fastener which will adhere indefinitely to the surface to which it is applied regardless of ordinary temperature changes or the presence of moisture.

Another object is to provide a fastener which may be removed readily with finger-tips and does not mar the surfaces to which it has been attached.

Another object is to provide a fastener which is reusable hundreds of times.

A further object is to-provide a fastener whose initial cost is extremely low and which is neat in appearance.

, Other objects, features'and advantages of the invention will become apparent as the description proceeds.

FIG. 1 is an elevation showing a preferred embodiment of my invention;

- FIG. 2 is a plan view thereof;

FIG. 3 is an elevation taken along line 3-3 of FIG. 2;

FIG. 4 is an elevation showing an application of the invention;

FIG. 4a is a side end view of FIG. 4;

FIG. 5 is a perspective view showing a modification;

FIG. 6 is an end view of a further modification;

FIG. 7 is a side elevation of FIG. 6; and

FIG. 8 is a section taken along line 88 of FIG. 6.

With reference now to FIGS. 1 and 2, the adhesive device 10 comprises a cup 11 and a body 12 of tacky plastic material disposed within the cup and adhered to the inside of the cup. The physical characteristics of the body of material 12 are similar to that which is associated with the term mastic, which term is used herein to designate the cup.

The cup 11 is preferably a molded part of synthetic resin, but it may be formed of any suitable constraining material such as metal, wood, or heavy paper which adheres to the mastic.

The mastic consists essentially of a base material such as a microcrystalline wax having. a melting point of 165 F., or a polyisobutylene ofa suitable degree of hardness, or any other adhesive material which retains its shape at ordinary temperatures, is pressure-sensitive adhesive, pressure deformable, non-resilient and pliable, non-volatile and non-setting, and which retains these properties upon removal and reapplication to a selected surface.

A preferred example is microcrystalline wax of a melting point of 165 F., ASTM needle penetration of 23 at 77 F., and oil content of 5%.

Other examples are as follows:

' 7 Parts Microcrystalline wax, M.P. 165 100 Terpene resin (Piccolyte) 30 The terpene resin adds tackiness, and the proportion can be varied through the range of from 10 parts to 70 parts per hundred parts of microcrystalline wax base. Instead of terpene resin, other substances canbe substituted in the same proportions, such as cumar resin, butyl rubber, or natural rubber.

Parts Polyisobutylene (10,000 mol. wt.) 50 Polyisobutylene (80,000 mol. wt.) 50 Terpene resin 25 Polyethylene resin 5 The proportions of the tackifying agent, such as terpene resin or the other substances mentioned in Example 1 can vary from 10 to 50 parts.

The polyethylene resin increases the tensile strength; the proportions can be varied, and the polyethylene is not 1 always necessary depending upon the hardness and tensile strength of the polyisobutylene base. The-proportions of this additive can vary from zero up to 30 parts per 100 parts of base. Polyvinyl resin may be substituted for polyethylene in the same proportions.

The polyisobutylene base in this instance is a half and half mixture of high and low molecular weights representing relativelyhard and relatively-soft substances respectively. The proportions of the mixture may be varied within limits of 10% either way, or even greater if the variations in the hardening'agents are modified correspondingly. In the alternative, a polybutylene of medium molecular weight such as 45,000 may be substituted for the mixture.

Fillers can be used in any of the above examples,

= I such as wood fibers, cotton linters, clay, Zinc oxide or the surface.

iii. a

The operation is as follows: The poster 14 is placed in the desired position against the wall. Then the device is positioned so that it overlaps the edge of the poster 14, and the cup 11 is pressed so that the mastic 12 adheres to both the wall and the poster.

The device lends itself readily'to this method of application. for handy use. The device is positioned with one hand and finger tip pressure completes the fastening. The whole process takes about a second and is surprisingly fast compared to other adhesive fastening methods.

Since the mastic retains its shape and is non-free flowing, in order to effect a permanent bond not subject to creep and failure, unit pressure involved in deforming the material is relatively high. Therefore, to afford ease of application of the device with one hand, it is desirable that A number of the devices may be carried in a pocket" such as bits of paper, may bekneaded into itto buildup its volume for further greatlycontinued use. I

Permanently pliable adhesive mastics in lump form hav notheretofore been considered suitable for use as adhesive devices because they tend to flow out of the pores of the bonded surface; also they will stretch and fail in tension.

Use of permanently tacky adhesives has been limited to thin films on cellophane tape. In thick adhesive applications, mastics have been compounded with solvents or vulcanizing agents which cause the .materialto set and A harden so as to avoid cold flow, and thus is not reusable.

the area of surface 16 be less than two square inches, and

preferably a quarter of a square inch.

Whenthe device makes its first contact with a surface, the workable portion ld yields readily and the tacky adhesive surface conforms itself to the mounting surface. The workable portion 13 may flow laterally until the ,Width of the gap between the edge of the cup and the wall 15 becomes small enough to offer suflicient resistance to the lateral flow of the .viscous material as to create a condition of equilibrium representing a substantial fluid pressure within the cup 11. This results in a good bond which extends throughout an area equal to the cross sectional area of the cup. The increase of pressure is also believed to increase the tensile strength of the mastic 12 at points near the surface 16, somewhat analogous to workhardening.

The adhesive device canbe removed and reused. Unlike adhesive tapes, which must be peeled for removal and thus tear paper articles, this device may be twisted for removal. The twisting motion produces a sliding action at the interface of the masticand the surface to which it is adhered, readily releasing its bond, and leaving the surfaces unmarred. I r

It is desirable that the back of the cup be wider than its diameter at the opening to afford a better grip. In a preferred embodiment, the device has a knurled flange 17 tween the mastic portion 12 and the cup 11, so that when the device is removed from a surface to which it has been attached the mastic will be retained in the cup, and will not be left on the surface. The area of adhesion within the cup exceeds area 16 by the area of the side walls of the cup, thus providing for greater adhesion of the mastic inside the cup than at surface 16. This internal adhesion is further enhanced by the packing of the mastic between the side walls. This internal packing and adhesion can be further increased by providing undercuts in the Walls of the cup and by ribs, projections, and other irregularities inside the cup.

In orderto insure clean removal of the device and prevent ruptureof the mastic during removal, and also to insure stability during application, the total axial length of the device is not greater than its least diameter. Preferably the axial extension of the workable portion is made short enough, with respect to the consistency of the mastic, so that it will not break during removal.

When the device is removed, the user can reform the workable portion 13, and thus obtain a new adhesive If the workable portion 13 loses its adhesiveness through accumulation of dust or other foreign particles after being used many times, the mastic may be removed with a fingernail, kneaded, and replaced in the cup, thus presentingnew adhesive surfaces. If the quantity of mastic becomes depleted after many uses, a filler,

In the present invention, the combination of the cup 11, the per'manently'pliable mastic 12 and the projecting workable portion 13 produces unexpected results:

(1) The combination produces ;a stronger and more uniform bond than a piece of mastic alone. Apparently the cup serves as a hydraulic vessel, distributes the pressure throughout the mastic, and thus bonds uniformly over. the entire joint area. v

(2") It provides a stronger adhesive structure than a piece of mastic alone, because (a) the cup brings the load line close to the plane of the bond, reduces the peeling turning moment, and thus reduces tension forces normal to the plane of. the bond; and because (b) the'cup'prevents the mastic from stretching and failing in tension'in the direction of the load.

(3) Pressing the device into place is believed to have whereby the mastic'would flow out of the pores of the surface to which it is bonded.

-(4) The workable'portion of the mastic affords at the initial moment of application a desirable yield-ability in conforming to any irregularities of the surface to which it isappliedQ Also the initial flow presents fresh, tacky or adhesive surfaces and thus overcomes fingerprints'which often destroy the adhesiveness of pressure sensitive materials. j

(5) It requires a surprisingly small area to provide an adequate bond: much smaller, for example, than the smallest piece of adhesive tape that can be torn and handled with convenience.

(6)'The relatively largermass of adhesive as compared to ordinary thin adhesive films, provides resilience against rupture due to strain and shrinkage caused by temperature'changes. 7

('7) The combination provides a ready means for removal, and'particularly means for removal by twisting which is not available in other adhesive fasteners or in a piece of mastic alone; and thus permits removal without marring or tearing the surfaces to which it has been bonded.

(8) The lateral flow of the workable portion 13 and, at-re-use, the obvious ,and natural act of reforming the extension, provides an automatic renewal of adhesive surfaces.

Furthermore, because of the cup, fingers may be removed from the device without sticking and weakening the joint. And the combination provides a neat and tidy appearance which is not usual in adhesive applications.

In FIGS. 6 to 8, a double cup 213 is provided having mastic 12 in each end. The device 1 can be used at the four corners of a picture frame for mounting same on a wall.

Although the invention has been described with reference to the embodiments herein, other shapes of cups, vessels, or receptacles and other types of attachment to the device could be used without departing from the spirit of the invention so long as a cup and a yieldable adhe sive mastic filling the cup and an extension of the mastic from the cup are combined.

From the foregoing disclosure it will be apparent that the present invention provides an adhesive fastener that is inexpensive, strong, neat and compact, most simple to apply and remove, applicable to hard or soft or rough or smooth surfaces, non-destructive, and re-usable almost indefinitely.

I claim:

1. An adhesive fastening device for securing articles to vertical and other surfaces comprising a cup-shaped member, a homogeneous body of tacky pliable material disposed within said cup-shaped member and having a volume greater than the capacity of said cup-shaped member, that portion of said body which projects from said cup-shaped member constituting a workable portion pro viding a tacky, pressure sensitive surface at room temperature for causing adhesion between said fastening device and a vertical surface.

2. An adhesive fastening device as claimed in claim 1 in which said cup-shaped member comprises a cylindrical member closed at one end and having a radially extending knurled flange projecting from the cylindrical wallthereof at the closed end for manipulative purposes.

3. An adhesive fastening device for securing articles to vertical surfaces comprising a cup-shaped member, a body of tacky pliable material disposed within said cupshaped member and having a volume greater than the capacity of said cup-shaped member, that portion of said body which projects from said cup-shaped member constituting a workable portion providing a tacky surface for causing adhesion between said fastening device and a vertical surface, said body of tacky pliable material consisting essentially of a base substance selected from the group consisting of microcrystalline wax and polyisobutylene.

4. An adhesive fastening device as claimed in claim 3 in which said base substance includes a tackifying substance selected from the group consisting of terpene resin, cumar resin, butyl rubber and natural rubber in the amount of from ten to seventy percent by weight of said base substance.

5. An adhesive fastening device as claimed in claim 1 in which said cup-shaped member includes mechanical fastening means attached thereto.

6. An adhesive fastening device as claimed in claim 1 in which said cup-shaped member includes a hook having a flexible shank connected to a wall of said cup-shaped member and extending in a direction generally perpendicular to the axis of said cup-shaped member.

7. An adhesive fastening device for securing articles to a vertical surface comprising a cylindrical member open at both ends and having an internal wall providing two oppositely and outwardly facing cup-like recesses, a homogeneous body of tacky pliable material disposed within each of said recesses and having a volume greater than the capacity of said recesses, that portion of said body which projects from said recess constituting a workable portion providing a tacky, pressure sensitive surface at room temperature for causing adhesion between said fastening device and a Vertical wall surface on the one hand, and between said fastening device and an article to be supported thereby on the other hand.

References Cited by the Examiner UNITED STATES PATENTS 1,5 60,029 11/25 Erickson 248-205 2,421,253 5/47 Fleischner 248--117 2,492,411 12/49 Barnes 248205 2,549,766 4/51 Benson '24829 CLAUDE A. LE ROY, Primary Examiner.

Claims (1)

1. AN ADHESIVE FASTENING DEVICE FOR SECURING ARTICLES TO VERTICAL AND OTHER SURFACES COMPRISING A CUP-SHAPED MEMBER, A HOMOGENEOUS BODY OF TACKY PLICABLE MATERIAL DISPOSED WITHIN SAID CUP-SHAPED MEMBER AND HAVING A VOLUME GREATER THAN THE CAPACITY OF SAID CUP-SHAPED MEMBER, THAT PORTION OF SAID BODY WHICH PROJECTS FROM SAID CUP-SHAPED MEMBER CONSTITUTING A WORKABLE PROTION PROVIDING A TACKY, PRESSURE SENSITIVE SURFACE AT ROOM TEMPERATURE FOR CAUSING ADHESION BETWEEN SAID FASTENING DEVICE AND A VERTICAL SURFACE.
US3165283A 1963-07-22 1963-07-22 Adhesive device Expired - Lifetime US3165283A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637181A (en) * 1970-03-16 1972-01-25 Minnesota Mining & Mfg Adhesive fixture
US4132018A (en) * 1977-05-04 1979-01-02 Hughes Terence P Decorative plague and multiple-purpose hanger and stand therefor
US4525943A (en) * 1982-09-21 1985-07-02 Shuji Iwata Movable calender marker
US5871387A (en) * 1994-05-16 1999-02-16 Straus; Jay Bradley Toy for repeated adjustable mounting
EP0902199A1 (en) * 1997-09-12 1999-03-17 M. et G. S. (S.A.R.L.) Device for fastening an object onto a surface, especially onto a wall or a floor, by means of adhesive mastic
US6136119A (en) * 1992-03-23 2000-10-24 Elmer's Products, Inc. Method for adhering two surfaces by use of a polyisobutylene adhesive crayon
US6613382B1 (en) 2000-12-22 2003-09-02 Eunchang Lee Method of manufacturing a note poster
US6789684B1 (en) 2002-09-12 2004-09-14 Transilwrap Company, Inc. Storage container for cards and file folders
US6907999B1 (en) 2003-02-26 2005-06-21 Transilwrap Company, Inc. Storage rack with easily installable retainer loops
US6948624B1 (en) 2003-07-30 2005-09-27 Transilwrap Company, Inc. Desk top storage holder
US20050263654A1 (en) * 2004-05-28 2005-12-01 Grillo Susan K Dot marks the spot
US20060273573A1 (en) * 2005-06-06 2006-12-07 Wittmeyer Larry E Jr Easel pad with adhesive-containing patch
US7350312B1 (en) 2007-01-26 2008-04-01 Dot Marks The Spot, Inc. Dot marks the spot
US8556224B2 (en) 2011-03-17 2013-10-15 Liberty Hardware Mfg. Corp. Adhesively mountable bathroom accessories

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1560029A (en) * 1924-06-06 1925-11-03 Charles F Erickson Hanger
US2421253A (en) * 1943-09-14 1947-05-27 Richard P Fleischner Wrist watch attachment
US2492411A (en) * 1947-05-02 1949-12-27 Katherine S Barnes Picture grip
US2549766A (en) * 1948-04-01 1951-04-24 Sidney W Benson Fastening means for supporting objects

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1560029A (en) * 1924-06-06 1925-11-03 Charles F Erickson Hanger
US2421253A (en) * 1943-09-14 1947-05-27 Richard P Fleischner Wrist watch attachment
US2492411A (en) * 1947-05-02 1949-12-27 Katherine S Barnes Picture grip
US2549766A (en) * 1948-04-01 1951-04-24 Sidney W Benson Fastening means for supporting objects

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637181A (en) * 1970-03-16 1972-01-25 Minnesota Mining & Mfg Adhesive fixture
US4132018A (en) * 1977-05-04 1979-01-02 Hughes Terence P Decorative plague and multiple-purpose hanger and stand therefor
US4525943A (en) * 1982-09-21 1985-07-02 Shuji Iwata Movable calender marker
US6136119A (en) * 1992-03-23 2000-10-24 Elmer's Products, Inc. Method for adhering two surfaces by use of a polyisobutylene adhesive crayon
US5871387A (en) * 1994-05-16 1999-02-16 Straus; Jay Bradley Toy for repeated adjustable mounting
EP0902199A1 (en) * 1997-09-12 1999-03-17 M. et G. S. (S.A.R.L.) Device for fastening an object onto a surface, especially onto a wall or a floor, by means of adhesive mastic
FR2768471A1 (en) * 1997-09-12 1999-03-19 M Et G S Device for fixing an object on a surface, particularly on a wall or a floor, with the aid of a mastic adhesive
US6613382B1 (en) 2000-12-22 2003-09-02 Eunchang Lee Method of manufacturing a note poster
US6789684B1 (en) 2002-09-12 2004-09-14 Transilwrap Company, Inc. Storage container for cards and file folders
US6907999B1 (en) 2003-02-26 2005-06-21 Transilwrap Company, Inc. Storage rack with easily installable retainer loops
US6948624B1 (en) 2003-07-30 2005-09-27 Transilwrap Company, Inc. Desk top storage holder
US20050263654A1 (en) * 2004-05-28 2005-12-01 Grillo Susan K Dot marks the spot
US7185442B2 (en) 2004-05-28 2007-03-06 Dot Marks The Spot, Inc. Dot marks the spot
US20060273573A1 (en) * 2005-06-06 2006-12-07 Wittmeyer Larry E Jr Easel pad with adhesive-containing patch
US7350312B1 (en) 2007-01-26 2008-04-01 Dot Marks The Spot, Inc. Dot marks the spot
US8556224B2 (en) 2011-03-17 2013-10-15 Liberty Hardware Mfg. Corp. Adhesively mountable bathroom accessories

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