Patent Abstract:
A kit holding a film sheet and a miniature squeegee may also include a bottle of an activation solution for an adhesive on the film sheet. The film sheet corresponds in size and shape to a display of an electronic device. Excess solution is removed from the display while evenly distributing the adhesive using wiping motions with the squeegee. In a dry adhesive application, a cover sheet over the adhesive is perforated so that one portion of the cover sheet may be removed for adhering one part of the film sheet to the display, and after securing the one part, the remainder of the cover sheet is removed to adhere the remainder of the film sheet to the display.

Full Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation-in-part of U.S. patent application Ser. No. 12/156,879, filed on Jun. 4, 2008, now U.S. Pat. No. 7,784,610, issued Aug. 31, 2010, which is a continuation-in-part of U.S. patent application Ser. No. 11/394,807, filed on Apr. 1, 2006, issued as U.S. Pat. No. 7,389,869 on Jun. 24, 2008. 
    
    
     BACKGROUND 
     This disclosure relates generally to protective film overlays on surfaces and more particularly to a kit and method of use for enabling the installation of such a film on an electronic device and especially its display such as used on cell phones and the like. A prior known viewing screen protective shield is removably securable in association with a viewing screen, such as LCR screens, as found in fish finders and the like, which are typically exposed to adverse weather conditions. The protective shield is readily removable and replaceable and include convex peripheral edges to conform the shield to the convex screen with an outwardly extending tab at a corner of the shield to enhance manual grasping thereof. To enhance securement of the shield to the associated screen, a plurality of transparent adhesive strips may be secured to an interior surface of the shield. It is known to provide a retrorefiective sheeting having an abrasion-resistant ceramer coating that is prepared from about 20% to about 80% ethylenically unsaturated monomers; about 10% to about 50% of acrylate functionalized colloidal silica; and about 5% to about 40% N,N-disubstituted acrylamide or N-substituted-N-vinyl-amide monomer having a molecular weight between 99 and 500 atomic mass units; wherein the percentages are weight percents of the total weight of the coating. An anti-reflective film construction is known that contains an optically transparent polymeric film having a textured surface and an optically transparent adhesive, the film construction configured to exhibit light transmission of greater than about 70 percent and a 60.degree gloss measurement of between about 15 and 100. An antiglare sheet for use with a display of a portable game machine that includes a film element serving as an antiglare film is known. An adhesive element is adapted to affix the film element to a display screen; and a ventilation opening is adapted to ventilate a space defined by the display screen and the film element. A multi-layer sheet material that comprises a film, and adhesive layer and an optional release liner is known. The film is a polyester blend comprising first and second polyesters that are substantially amorphous and possess certain physical properties including softening temperature, E-modulus, elongation and residual stress. Disclosed also is a protective diffusion film, which does not scratch a lens film and a liquid crystal display device, does not become a refuse source or the like, and also has a suitable level of concealment effect, a process for producing the same, a surface light source device, and a liquid crystal display device. This protective diffusion film is used in a surface light source device provided with a lens film wherein the protective diffusion film is provided on a light outgoing surface of the lens film, and comprises: a transparent substrate layer; and a protective diffusion layer which is provided on the transparent substrate layer in its surface at least on the lens film side, has fine concaves and convexes on its surface, protects members which come into contact with the protective diffusion film, and is light diffusive. Antisoiling hardcoated film is known in the art which comprises a substantially transparent substrate, a hardcoat layer comprising inorganic oxide particles dispersed in a binder matrix, and an antisoiling layer comprising a perfluoropolyether. The antisoiling layer can be very thin, thus reducing the cost of the perfluoropolyether. The film has very good scratch, smudge and glare resistance and very good interlayer adhesion and durability. The film can be in the form of a single flexible substrate or a stack of such substrates. The film or stack can be sized to fit the display screen of an electronic display device such as a personal digital assistant or cell phone. The art also discloses a polarized filter film having a plurality of light-filtering layers, each having a different polarization aperture and tint hue that can be selectively combined to form a polarized filter film having a combined opacity rating of 5% to 55% when applied to a transparent medium such as a window. The combined polarized filter film is comprised of a plurality of layers of light-filtering material wherein each layer has a plurality of apertures positioned either vertically or angularly so that the horizontal rays associated with glare are reduced dramatically. Each layer of film has a plurality of slotted apertures that is biased or offset from the overlaying light-filtering film apertures whereby varying degrees of light-blocking properties can be achieved by using the light-filtering films in conjunction with additional layers. The present invention is attached to the transparent medium by using an adhesive which has a removable protective backing layer. Also disclosed is a repositionable, self-adhering optical laminate having a thin film optical coating, an organic hardcoat, a thin plastic film substrate, an optical quality, pressure sensitive adhesive and, preferably, a release liner. The pressure-sensitive adhesive is a low modulus, self-wetting elastomer which readily wets glass and plastic surfaces such as video display screens, promoting bubble-free mounting. The adhesive has low tack so that bubbles can be removed easily and the laminate can be totally or partially removed and reapplied to correct its positioning and/or to remove bubbles, dirt, etc. However, the prior art fails to disclose a compact kit providing the materials and tools necessary for applying a film to a surface. The present disclosure distinguishes over the prior art providing heretofore unknown advantages as described in the following summary. 
     BRIEF SUMMARY 
     This disclosure teaches certain benefits in construction and use which give rise to the objectives described below. 
     The types of surfaces that the present invention is designed to protect are any of the electronic surfaces and especially the displays known in the art such as for cell phones, computers, calculators and the like. Such surfaces are subject to scratches and to the accumulation of debris such as dust and dirt of various kinds. In normal use, these displays tend to be scratched when touched, and during cleaning. Therefore, it is desirable to apply a protective sheet over such surfaces. However, devices are not commonly provided with protective layers and users are not equipped or skilled in the practice of applying such protective sheets. Therefore, the present invention is designed to provide the materials, tools and instructions for enabling a person to apply a protective layer to the surfaces of electronic devices and especially display screens. The invention is provided as a kit of materials and tools. It is preferably provided with a molded support card or other package for holding a plurality of film sheets each having an adhesive layer on one side, a spray bottle containing a cleaning and activating solution enabled for activating the adhesive layers of the film sheets, and a squeegee. The film sheets, the squeegee, and the spray bottle are secured in the package in a manner that allows them to be easily removed for applications. 
     A primary objective inherent in the above described apparatus and method of use is to provide advantages not taught by the prior art. 
     Another objective is to provide all of the items necessary to apply a protective sheet to a surface of an electronic device and its display. 
     A further objective is to provide such a kit that may be used at least several times. 
     A further objective is to provide such a kit that may have a film for dry application and alternatively, a film for wet application. 
     A further objective is to provide a method for applying the dry adhesive film sheet while maintaining registration between the film sheet and the receiving surface. 
     Other features and advantages of the present invention will become apparent from the following more detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the presently described apparatus and method of its use. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG. 1  is an front exploded view of an exemplary kit according to the present disclosure; 
         FIG. 2  is an front elevational view of the exemplary kit of  FIG. 1  as assembled; 
         FIG. 3  is a perspective view showing a surface preparation step according to the present disclosure; 
         FIG. 4  is a perspective view as in  FIG. 3 , showing a finishing step according to the present disclosure; 
         FIG. 5  is a perspective view as in  FIG. 3 , showing a first step for attaching a protective cover with a dry adhesive according to the present disclosure; and 
         FIG. 6  is a perspective view as in  FIG. 3 , showing a second step for attaching the protective cover with a dry adhesive according to the present disclosure; and 
     
    
    
     DETAILED DESCRIPTION 
     Described now in detail is a kit apparatus providing the materials and tools necessary for applying a protective film sheet  20  onto an electronic device  4  and especially a display  5  thereof. The term “display  5 ” herein shall mean any surface of the device  4  including a display or other surface. The kit apparatus, as shown in  FIG. 1 , may include a package  10  that may be a molded support card, a folded paper box or any similar container made of plastic, paper, cardboard or other materials. The package  10 , in one embodiment, provides two pockets  12  and  14  and a molded recess  16 . However, the package may be structured in alternative ways with more or less recesses, pockets and/or other means for securing the materials and tools. The term “pocket  12 ” is used herein to mean any feature of the package that may be used for securing the materials and tools. 
     At least one, but preferably, a plurality of film sheets  20  may be secured within a first one of the pockets  12  as shown in  FIG. 2 . These sheets  20  are preferably cut to the exact size of the electronic display screen  5  or other surface that they are to be mounted onto so that no cutting and minimal fitting steps are necessary in accomplishing the objective of the kit; to provide a protective cover on the device  4 . The sheets  20  are preferably made of an optically clear film of a hard and scratch resistant type such as polyurethane, polyethylene or polycarbonate and are preferably between 0.5 and 20.0 thousandths of an inch in thickness, wherein such a thickness range provides the required flexibility in its thinner gauges and extreme durability in its heavier gauges. A film thickness below 0.5 thousandths of an inch is subject to tearing and is difficult to handle, while a film thickness greater than 20.0 thousandths of an inch tends to be excessively rigid for the present application so that it tends to lift from the surface it is secured to due to thermal expansion differences between film and application surface. The sheets  20  are coated on one side with an adhesive  22 . In one embodiment the adhesive  22  may be of the type that is activated by a solution  32  such as alcohol or water, and as shown in  FIG. 3  the solution  32  is applied to the screen  5  for cleaning it as an initial preparation step, and after drying the now clean surface, the solution  32  is applied a second time just prior to placement of sheet  20 . In an alternate embodiment, the adhesive  22  may also be designed for dry attachment in which case no solution  32  is required. In this case, an alcohol wipe or similar cleaning article may be used to clean and prepare the screen  5  for receiving the dry adhesive  22 . In both embodiments, wet and dry, a peel-away cover sheet  25  is required to cover the adhesive  22  prior to applying the sheet  20  to the screen  5 . 
     When solution  32  is used, a miniature bottle  30  containing the solution  32  may be secured within the molded recess  16 . The miniature bottle  30  may be a manually operated spray bottle, but may alternately be another kind of bottle. The solution  32  is preferably a substance that is environmentally friendly, is a good degreasing agent and is capable of partially dissolving the adhesive  22 , i.e., for activation. 
     A miniature squeegee  40  is secured within a second one of the pockets  14 . Such a squeegee  40  is small and preferably has a blade  42  with a contact edge of a length not greater than the largest dimension of the film sheet  20 . This is necessary in case the display screen  5  is recessed since it is necessary for the squeegee  40  to be drawn across all parts of the sheet  20  to drain the solution  32  and air trapped under sheet  20  after its attachment to screen  5 . 
     As stated above, sheet  20  has a layer of adhesive  22  on one side thereof. As also stated, the adhesive  22  is covered with a peel-away cover sheet  25 . Sheet  25  may be a single integral sheet of plastic or paper that fully covers the adhesive  22 . Referring to  FIGS. 5 and 6 , In a preferred embodiment for dry attachment of sheet  20  to screen  5 , sheet  25  has a first portion  25 A and a second portion  25 B where both portions are part of the single sheet  25 , but are separated by a perforation that allows one of the portions, for instance portion  25 A, to be peeled away from adhesive  22  without disturbing the remaining portion  25 B. 
     Described now in detail is a method for the installation of the film sheet  20  onto electronic screen  5 . At least one film sheet  20  is provided. For wet application, the bottle  30  containing the cleaning and activating solution  32  and a squeegee  40  are provided in the kit. The cleaning and activating solution  32  is sprayed or otherwise deposited onto screen  5  and is then removed with the squeegee  40  or with an absorbent cloth, etc. This step removes dust, dirt or grease from the screen  5 . Next, the cleaning and activating solution  32  is deposited onto the screen  5  again and the film sheet  20 , after peeling away the cover sheet  22 , is placed onto screen  5  with the adhesive layer  22  in contact with the solution  32  on screen  5  as shown in  FIG. 3 . The film sheet  20  is moved if necessary to position it on screen  5  to assure mutual registration and alignment, and, while holding the film  20  in place manually the solution  32  is pressed out from between the sheet  20  and screen  5  using the squeegee  40  as shown in  FIG. 4 . 
     Described now in detail is a method for the installation of the film sheet  20  for dry applications. When a liquid cannot be used, the kit does not include bottle  30  or activating solution  32 . However, squeegee  40  is still provided in the kit. Dust, dirt or grease may be removed from the application surface using a moist wipe such as an alcohol impregnated wiper and such a wiper (not shown) may be included within the kit. Next, the film sheet  20 , with its peel-away cover sheet  25  is placed onto screen  5  and carefully moved thereon to position it in full registration with screen  5 . Next, in a preferred step, when cover sheet  25  is perforated into portion  25 A and  25 B, with the sheet  20  pinned in place by manual pressure as shown in  FIG. 5 , one edge of the sheet  20  is lifted away from the screen  5  and portion  25 A of cover sheet  25  is peeled off adhesive layer  22 . The one edge of sheet  20 , with its adhesive surface exposed, is then pressed into contact with screen  5  which securely establishes and fixes the registration between sheet  20  and screen  5 . Next, as shown in  FIG. 6 , the portion  25 B is lifted fully away from screen  5 , and without detaching the adhered edge of sheet  20 , the portion  25 B of cover sheet  25  is peeled away from adhesive  22 . Finally, the remaining part of sheet  20  is pressed into contact with screen  5 , and squeegee  40  is used to assure intimate contact between sheet  20  and screen  5 , and also to assure that any air bubbles are pressed out, as shown in  FIG. 4 . 
     The enablements described in detail above are considered novel over the prior art of record and are considered critical to the operation of at least one aspect of the apparatus and its method of use and to the achievement of the above described objectives. The words used in this specification to describe the instant embodiments are to be understood not only in the sense of their commonly defined meanings, but to include by special definition in this specification: structure, material or acts beyond the scope of the commonly defined meanings. Thus if an element can be understood in the context of this specification as including more than one meaning, then its use must be understood as being generic to all possible meanings supported by the specification and by the word or words describing the element. 
     The definitions of the words or drawing elements described herein are meant to include not only the combination of elements which are literally set forth, but all equivalent structure, material or acts for performing substantially the same function in substantially the same way to obtain substantially the same result. In this sense it is therefore contemplated that an equivalent substitution of two or more elements may be made for any one of the elements described and its various embodiments or that a single element may be substituted for two or more elements in a claim. 
     Changes from the claimed subject matter as viewed by a person with ordinary skill in the art, now known or later devised, are expressly contemplated as being equivalents within the scope intended and its various embodiments. Therefore, obvious substitutions now or later known to one with ordinary skill in the art are defined to be within the scope of the defined elements. This disclosure is thus meant to be understood to include what is specifically illustrated and described above, what is conceptually equivalent, what can be obviously substituted, and also what incorporates the essential ideas. 
     The scope of this description is to be interpreted only in conjunction with the appended claims and it is made clear, here, that each named inventor believes that the claimed subject matter is what is intended to be patented.

Technology Classification (CPC): 2