Stamp assembly with embossing member

Information

  • Patent Grant
  • 6324977
  • Patent Number
    6,324,977
  • Date Filed
    Friday, April 28, 2000
    24 years ago
  • Date Issued
    Tuesday, December 4, 2001
    23 years ago
  • Inventors
  • Original Assignees
  • Examiners
    • Hilten; John S.
    • Williams; Ken D.
    Agents
    • Flehr Hohbach Test Albritton & Herbert LLP
  • CPC
  • US Classifications
    Field of Search
    • US
    • 101 405
    • 101 406
    • 101 327
    • 101 333
    • 101 103
    • 101 108
    • 101 109
    • 101 368
    • 040 328
  • International Classifications
    • B41K156
Abstract
A stamp assembly for use with an ink to create an image having an area on a surface of a workpiece. The stamp assembly comprises a handle member having a surface with an area at least approximating the area of the image. A flexible sheet-like embossing member is provided and has opposite first and second sides. The first side has a first side surface and the second side has an embossed portion with a substantially planar raised surface corresponding to the image. The first side of the embossing member is removably secured by interfacial tack to the surface of the handle member. The embossed portion is adapted to receive ink on the raised surface and the raised surface is adapted to thereafter engage the surface of the workpiece to form the image on the workpiece.
Description




This invention relates to stamps for forming images on a surface of a workpiece and more particularly to stamps for applying ink to the surface of the workpiece to create the image.




Stamps for forming an image from ink on a surface of a workpiece have heretofore been provided. Such stamps typically include a handle or stamp mount made from a substantially rigid material and an embossing member made from a suitable flexible material such as rubber secured to the stamp mount. The stamp mount is usually formed with a substantially planar bottom surface to which the embossing member is secured. A layer of an elastomeric material such as foamed rubber is sometimes disposed between the bottom surface of the stamp mount and the embossing member for facilitating the formation of the image on an irregular surface. Unfortunately, the stamp mount and the embossing member are usually secured together, directly or indirectly, in a permanent manner. An adhesive is often used in this regard. This permanent bond can result in tears in the embossing member when one attempts to remove the embossing member from the stamp mount. As a result of the foregoing, a separate stamp mount with a dedicated embossing member thereon is typically required for forming each image.




An embossing member for removable attachment to a mount has been provided. See in this regard the Glintzes embossing members, made by Inkslingers of San Jose, Calif., which are removably mountable to a mount by a fluid which secures the pieces together by means of surface tension. Such embossing members, however, require a few drops of water or another fluid for attachment and are thereafter slidable over the surface of the mount so as to hinder the retention of the embossing member in a desired location on the mount. Another removable embossing member is provided with a mounting tab which extends perpendicularly from the rear surface of the embossing member and seats within a cooperatively sized recess provided in the stamp mount. The awkward shape of such embossing members hinders their storage and limits the shape of the mount onto which they can be attached.




Some of the stamp assemblies have stamp mounts and embossing members made from an optically transparent material to permit viewing of the surface of the workpiece through the stamp mount.




It is in general an object of the invention to provide anew and improved stamp assembly having an embossing member that is removably secured to the stamp mount of the stamp assembly.




Another object of the invention is to provide a stamp assembly of the above character in which the embossing member can be removably secured to the stamp mount by means of interfacial tack.




Another object of the invention is to provide a stamp assembly of the above character which can be at least partially transparent so as to facilitate placement of the image on the surface of the workpiece.




Another object of the invention is to provide a stamp assembly of the above character in which the stamp mount has a surface for receiving the embossing member which is arcuate in conformation.




Another object of the invention is to provide a stamp assembly of the above character in a which the surface of the stamp mount is concave.




Another object of the invention is to provide a stamp assembly of the above character in which the surface of the stamp mount is convex.




Another object of the invention is to provide a stamp assembly of the above character in which the stamp mount has a bendable wall for receiving the embossing member.




Another object of the invention is to provide a stamp assembly of the above character in which the stamp mount can be a container for storing the removable embossing member.











These and other objects are achieved in accordance with the invention by providing a stamp assembly for use with an ink to create an image having an area on a surface of a workpiece. The stamp assembly comprises a handle member having a surface with an area at least approximating the area of the image. A flexible sheet-like embossing member is provided and has opposite first and second sides. The first side has a first side surface and the second side has an embossed portion with a substantially planar raised surface corresponding to the image. The first side of the embossing member is removably secured to the surface of the handle member by means of interfacial tack. The embossed portion is adapted to receive ink onthe raised surface and the raised surface is adapted to thereafter engage the surface of the workpiece to form the image on the workpiece.





FIG. 1

is an isometric view, partially cut away, of a stamp assembly with a removable embossing member of the present invention.





FIG. 2

is a bottom plan view of the stamp assembly of

FIG. 1

taken along the line


2





2


of FIG.


1


.





FIG. 3

is a front elevational view of another embodiment of the stamp assembly of the present invention.





FIG. 4

is an isometric view of a further embodiment of the stamp assembly of the present invention.





FIG. 5

is an isometric view of yet another embodiment of the stamp assembly of the present invention.





FIG. 6

is a front elevational view of yet a further embodiment of the stamp assembly of the present invention.





FIG. 7

is an isometric view of another embodiment of the stamp assembly of the present invention.





FIG. 8

is an isometric view of a further embodiment of the stamp assembly of the present invention in a closed condition.





FIG. 9

is an isometric view of a portion of the stamp assembly of

FIG. 8

in an open condition.





FIG. 10

is an isometric view of yet another embodiment of the stamp assembly of the present invention.











In general, stamp assembly


21


of the present invention is for use with a conventional ink pad (not shown) for forming an image


22


on a surface


23


of a work piece such as a sheet of paper


26


(see FIG.


1


). The stamp assembly includes a handle member or handle


27


and an embossing member


28


. The image


22


, shown in

FIG. 1

after having been formed from ink on surface


23


of the sheet of paper


26


, has an area defined by the surface area of the image.




Handle or stamp mount


27


is formed from a substantially rigid body


31


having a U-shape cross section and being made from any suitable material such as plastic. Handle body


31


shown in

FIGS. 1 and 2

is extruded from a suitable plastic of the type discussed below and has a substantially planar bottom wall


32


and at least one finger-grippable wall in the form of first and second side walls or grips


33


and


34


. The bottom wall


32


has a first or left side


32




a


and a second or right side


32




b


and a top substantially planar surface


36


and a bottom substantially planar, smooth surface


37


. The first or left grip


33


and the second or right grip


34


extend upwardly from top surface


36


and, as shown, are formed integral with respective left and right sides


32




a


and


32




b


of the bottom wall


32


of extruded body


31


. First and second grips


33


and


34


bow inwardly toward each other to form respective recesses


39


therein that extend along the length of the grips for facilitating holding of the grips


33


and


34


between at least two fingers of a human hand, such as the thumb and the opposing fingers of the hand.




Although stamp assembly


21


can be scaled to any suitable size, bottom wall


32


of the handle body


31


has an area at least approximating the area of the image. Body


31


is shown as having a width between its left and right sides


32




a


and


32




b


ranging from 0.25 to eight inches and preferably ranging from 1.5 to 2.5 inches and a length extending between its front and back ranging from 0.25 to eight inches and preferably ranging from 1.5 to 2.5 inches. Left and right grips


33


and


34


can each have a height ranging from 0.25 to 1.25 inch and preferably approximately 0.75 inch. The walls


32


-


34


of body


31


each have a thickness ranging from 0.035 to 0.250 inch and preferably approximately 0.090 inch so as to be substantially rigid.




Stamp mount


27


can optionally include a layer of material in the form of a cushion


46


having opposite top and bottom parallel surfaces


47


. Cushion


46


is secured to bottom surface


37


of body


31


and is made from any suitable material such as a soft rubbery material or elastomer. The cushion


46


has a shape in plan which preferably corresponds to the shape of bottom wall


32


and, as shown in

FIG. 2

, is rectangular in plan. Cushion


46


has a thickness ranging from 0.050 to 0.20 inch and preferably approximately 0.125 inch. The surface area of the cushion


46


is less than the surface area of bottom surface


37


and preferably ranges from 50% to 95% of the area of bottom surface


37


. In alternate embodiments, the optional cushion


46


or other such layer of material can have a shape in plan that closely matches the shape and size of image


22


. For example, cushion


46


could have the shape of the letter A to match the A shape of image


22


.




Top surface


47


of cushion


46


is secured to bottom surface


37


of bottom wall


32


by any suitable means such as an adhesive (not shown). Alternatively, cushion


46


can be removably secured to the bottom wall


32


by any suitable means such as interfacial tack. In general, tack is the ability of a material of an adhered, such as cushion


46


, to adhere instantaneously to a surface of a substrate, such as handle body


31


, when the adhered and the substrate are brought into contact under light pressure. As used herein, “interfacial tack” does not include an adherence that is accomplished with separate pressure-sensitive or other adhesives or with the use of fluids, such as water, to create a bond by means of surface tension. The adhering force is such that only a small amount of force is required to separate the adhered and the substrate. Such a bonding process involves thermodynamic and kinetic parameters and other factors such as mechanical interlocking between the surfaces being brought into contact.




In order to provide the weak adhesion, that is interfacial tack, between top surface


47


of the cushion


46


and bottom surface


37


of the bottom wall


32


, the material of cushion


46


should have the ability to wet the bottom surface


37


of stamp mount


27


. In general, wetting refers to the ability of a material, such as the material of cushion


46


, to conform intimately to a surface, such as bottom surface


37


. Such wetting ability of cushion


46


can be attained by the use of increased molecular mobility on top surface


47


of the cushion. This increased molecular mobility can be achieved by providing surface


47


with a low degree of crosslinking or a low hardness, by use of polymer blends or gels to form the surface


47


and/or by ensuring that the surface energy of the cushion


46


is lower than the surface energy of handle body


31


. Such wetting ability of the cushion


46


can also be achieved by ensuring that top surface,


47


of the cushion


46


is smooth to allow optimum wetting of bottom surface


37


or by temporarily warming top surface


47


to make the surface


47


tacky and then attaching the cushion


46


to the handle body


31


. After the cushion


46


cools to room temperature, the cushion will maintain a temporary bond with the handle body.




Handle body


31


is preferably made from a material that has the ability to be wetted by cushion


46


. In addition, and as discussed above, the bond formed between cushion


46


and handle body


31


should be such that only a small amount of force is required to separate the materials. The foregoing can be accomplished by one or more of several approaches. In one approach, handle body


31


is made from a material that has a higher surface energy than the material of cushion


46


This can be achieved either by using high-energy materials such as nylons, polyethylenes, polypropylenes (PP), polyesters (P), acrylonitrile butadiene styrene (ABS), high impact polystyrene (HIPS), polyvinyl chloride (PVC), polymethylmethacrylate (PMMA), polyethylene terephthalate (PET) polyethylene terephthalate (PETG), polystyrene, polycarbonate and engineered polymers such as polysulfone, polyethersulfone and polyetherimide or by treating surface


37


of the handle body


31


by chemical etching, corona treatment, surface grafting of chemicals or other similar techniques. In a second approach, bottom surface


37


is made smooth to optimize wetting of such surface by the material of cushion


46


. In a third approach, bottom surface


37


can be temporarily warmed prior to attachment of the cushion


36




46


to handle body


31


Such warming makes surface


37


tacky at the time of contact, which tackiness declines after cooling to room temperature so as to allow separation of surfaces


37


and


47


without the application of much force.




In a fourth approach, the molecular mobility on substrate surface


37


is increased so that wetting between surface


37


and cushion


36


can readily occur. Such an increase in molecular mobility can be achieved by forming handle body


31


with suitable materials such as polymer blends, plasticizing additives and lower molecular weight materials. In a fifth approach, a two-layer substrate can be used. For example, handle body


31


can be formed with top and bottom layers, the material of the top layer being harder than the material of the bottom layer for maintaining dimensional and structural integrity in the handle body


31


. The bottom layer contacts cushion


46


and can have its properties optimized, by one or more the foregoing approaches, to allow optimum wetting with the cushion. The top and bottom layers of such a handle body


31


would be bonded in such a way that the strength of that bond would be far greater than that of the bond formed between the handle body and the cushion


46


.




Bottom surface


37


of the handle body


31


should have a surface energy of greater than


20


dynes/cm and preferably greater than


30


dyne/cm. Surface


37


should additionally have a surface hardness greater than 10 Shore A and be relatively smooth to allow optimum wetting by the cushion


46


. Suitable plastics for use in forming at least the bottom surface


37


of handle body


31


, and preferably all of handle body


31


, include rigid plastics such as nylons, polyethylenes, polypropylenes, polyesters, ABS, HIPS, PVC, PMMA, PET, PETG, polystyrene, polycarbonate and engineered polymers such as polysulfone, polyethersulfone and polyetherimide. Any of the above materials can be formed in a foamed state and be suitable for use in forming the bottom portion of handle body


31


. The bottom surface


37


of handle body


31


, or alternatively all of handle body


31


, can also be made from nonplastic materials such as metal, ceramic, glass and wood. A particularly preferred metal is aluminum.




It is preferable that at least the upper surface


47


of cushion


46


be made from a material having a surface energy of less than 50 dynes/cm, preferably less than 40 dynes/cm and more preferably less than 30 dynes/cm. Such surface should also have a softness of less than 60 Shore A and preferably less than 50 Shore A, and be relatively smooth to allow optimum wetting of bottom surface


37


of the handle body


31


. It should be appreciated that in certain combinations of materials for substrate surface


37


and cushion surface


47


, cushion


46


can be made from a very soft material or gel and may have a surface energy higher than the surface energy of substrate surface


37


.




Suitable elastomers for use in forming at least the upper surface


47


of cushion


46


, and preferably all of the cushion


46


, include (i) thermoplastic elastomers, (ii) elastomers that are crosslinkable by means of sulfur, peroxide, irradiation, room temperature vulcanization (RTV) or other similar techniques and (iii) noncrosslinked rubbery materials. Particularly preferred elastomers include natural rubber, polyisoprene, styrene butadiene rubbers (SBR), styrene-ethylenebutylene-styrene (SEBS) rubbers, polybutadiene, polyisobutylene, nitrile rubber, butyl rubber, polychloroprene rubber (Neoprenes), chlorinated polyethylene rubber, silicone rubber such as room temperature vulcanizing (RTV) silicone, fluorocarbon rubber, polyurethane elastomers, ethylenepropylene rubbers (EPM, EPDM), olefenic thermoplastic elastomers (TPO), thermoplastic copolyesters and thermoplastic copolyamides. Modified elastomers that are suitable for use in forming at least upper surface


47


include elastomers, such as any of those discussed above, that have been modified through the use of additives such as plasticizers to increase their tack and flow properties. Typical examples of such modified elastomers include soft elastomers such as gels. Some particularly preferred gels are made of silicone, styrene-butadiene-styrene (SBS) or SEBS polymers.




Embossing member


28


has opposite first and second sides in the form of first or top side


51


and second or bottom side


52


and is preferably a flexible member. The top side


51


has a substantially planar, smooth top surface


53


. The bottom side


52


is provided with a planar base surface


54


and an embossed portion comprising a substantially planar raised surface


56


extending substantially parallel to the base surface


54


. The raised surface


56


has a size and shape corresponding to image


22


and is spaced above the base surface


54


a suitable distance such that when ink from the ink pad is received by the raised surface


56


, the ink can be applied to surface


23


of sheet of paper


26


to form the image


22


on the surface


23


. Embossing member


28


can be made from any suitable material, such as any of the materials discussed above with respect to cushion


46


.




Top surface


53


of embossing member


28


is removably secured to bottom surface


47


of cushion


46


by any suitable means such as interfacial tack. When the embossing member


28


is secured to the cushion


46


by means of interfacial tack, top surface


53


should be a smooth surface unless the material of embossing member


28


that forms surface


53


is a gel. The material of embossing member


28


forming raised surface


56


must be sufficiently rigid so that the raised surface


56


can retain the image


22


during the stamping operation. It should be appreciated that embossing member


28


can be of a composite construction. For example, the material forming top surface


53


can be a gel and the material forming raised surface


56


can be a nongel or a gel with greater rigidity than the gel material forming top surface


53


.




Alternatively, the embossing member


28


can be permanently secured to the bottom surface


47


of cushion


46


by any suitable means such as an adhesive (not shown). The embossing member


28


preferably has a surface area in plan which closely approximates the surface area of cushion bottom surface


47


and more preferably has a surface area which is slightly less than the surface area of bottom surface


47


(see FIG.


2


).




It should be appreciated from the foregoing that cushion


46


can be removably secured, by means of interfacial tack or otherwise, or permanently secured to the bottom surface


37


of body


31


and that embossing member


28


can be removably secured, by means of interfacial tack or otherwise, or permanently secured to the bottom surface


47


of cushion


46


. Thus, a stamp assembly


21


having a cushion


46


permanently secured to body


31


and an embossing member


28


permanently secured to cushion


46


and a stamp assembly having a cushion


46


removably secured to body


31


and an embossing member


28


removably secured to cushion


46


are each within the scope of the present invention. In addition, a stamp assembly having a cushion


46


removably secured to body


31


and an embossing member


28


permanently secured to cushion


46


or, alternatively, a stamp assembly having a cushion


46


permanently secured to body


31


and an embossing member


28


removably secured to the cushion


46


are also each within the scope of the present invention. As mentioned above, a stamp assembly without cushion


46


is further contemplated and embossing member


28


thereof can be removably secured or permanently secured to bottom surface


37


of the handle body


31


of such a stamp assembly. Where a cushion


46


is utilized and both the cushion


46


and embossing member


28


are each removably mountable, it is preferable that it be easier to remove the embossing member


28


from the cushion


46


than it is to remove the cushion from body


31


so that removal of the embossing member after use does not undesirably result in the removal of the cushion from stamp mount


27


.




Stamp mount


27


, embossing member


28


and optional cushion


46


can be any suitable color or tint, and can be opaque, translucent or transparent. Preferably, the stamp mount


27


, the embossing member


28


and any cushion


46


are at least partially transparent or semitransparent so that the ink being applied by raised surface


56


to paper surface


23


can be viewed from the top of body


31


through the stamp mount


27


, the embossing member


28


and the optional cushion


46


.




In operation and use of a stamp assembly


21


having an embossing member


28


removably secured to cushion


46


, top surface


53


of the embossing member


28


is placed against bottom surface


47


of cushion


46


to secure the embossing member to stamp mount


27


. The user then grasps left and right grips


33


and


34


between his or her thumb and opposing fingers and presses raised surface


56


against the ink pad or other suitable ink source to deposit a layer of ink on the raised surface


56


. The user next presses the raised surface


56


against surface


23


of the sheet of paper


26


to form image


22


on the sheet of paper, as shown in FIG.


1


.




During the stamping process, the interfacial tack securing cushion


46


to handle body


31


and securing embossing member


28


to the cushion


46


precludes the cushion


46


and the embossing member from coming off of the stamp mount


27


or sliding on bottom surface


37


thereof. The user can view the placement of the ink on paper


26


through the transparent material of stamp mount


27


, cushion


46


and embossing member


28


. The utilization of spaced-apart left and right side grips or arms


33


and


34


extending from opposite sides


32




a


and


32




b


of the handle body


31


provide stamp mount


27


with an uncluttered central portion to facilitate viewing of the stamped image therethrough.




The elastomeric material of cushion


46


permits stamp assembly


21


to accommodate uneven work surfaces, such as irregularities in surface


23


. In this regard, cushion


46


can deform while stamp mount


27


is being pressed against paper


26


. Raised surface


56


can thus be pressed into any recesses in surface


23


or contract upwardly to accommodate any protuberances in the paper surface


23


.




Cushion


46


further serves the purpose of inhibiting rubber burn, that is unwanted ink from being deposited on surface


23


of the paper


26


. As discussed above, and as shown in

FIGS. 1 and 2

, embossing member


28


has a size and shape in plan which approximates the size and shape of cushion


46


. In addition, the cushion


46


has a thickness such that the bottom side


52


of embossing member


28


is spaced a significant distance below bottom surface


37


of handle bottom wall


32


. The inclusion of cushion


46


thus inhibits ink from contacting bottom wall


32


during the loading of ink onto raised surface


56


. The cushion


46


further inhibits the bottom edges of wall


32


from contacting the sheet of paper


26


during formation of image


22


on the paper. Thus, any ink that may have accumulated on handle bottom wall


32


during ink loading is unlikely to contact the paper


26


.




Once image


22


has been so formed on paper


26


, stamp assembly


21


can be used for forming further copies of image


22


on suitable workpieces. Additional ink can be supplied to raised surface


56


as needed. After completion of such process, embossing member


28


can be peeled from cushion


46


and another similar embossing member secured to cushion


46


in the manner discussed above with respect to embossing member


28


. Cushion


46


can also be easily removed from handle body


31


when needed. No adhesive residue remains on bottom surface


37


after removal of the cushion


46


. Stamp mount


27


can thus be utilized with a plurality of embossing members. The surfaces of each of cushion


46


and embossing member


28


utilized for attachment by means of interfacial tack have characteristics that permit them to be cleaned with a solvent, such as water or alcohol, that does not swell the material of such parts. These parts can thus be easily cleaned for reuse without harming the ability of the parts to be later secured to the appropriate surface of stamp assembly


21


by means of interfacial tack. The reusable nature of stamp mount


27


reduces the cost of image formation because only one mount


27


is needed for using many embossing members


28


.




A kit (not shown) which includes a package having one or more stamp mounts


27


and a plurality of removable embossing members


28


can be provided. Such embossing members can be alternatively used on either or both of such stamp mounts


27


in the manner discussed above.




Another embodiment of a stamping assembly of the present invention is shown in FIG.


3


. Stamping assembly


66


therein has similarities to stamping assembly


21


and like reference numerals have been used to describe like components of stamp assemblies


21


and


66


. A handle member or handle


67


is included in stamp assembly


66


. The handle or stamp mount


67


is formed from a body


68


that has a U-shaped cross section, as shown

FIG. 3

, and can be extruded from any suitable substantially rigid material such as plastic. Any of the materials discussed above with respect to stamp mount


27


of stamp assembly


21


are suitable for handle body


68


. Substantially rigid handle body


68


has a bottom wall


71


having a first or left side


71


a and a second or right side


71




b


. At least one finger-grippable wall extends upwardly from bottom wall


71


. More specifically, a first or left side wall or grip


72


extends upwardly from left side


71




a


and a second or right side wall or grip


73


extends upwardly from right side


71




b


. The grips


72


and


73


, substantially identical to each other, are spaced apart from and parallel to each other. Bottom wall


71


and left and right grips


72


and


73


can each have a thickness, width and length similar to the respective thickness, width and length discussed above with respect to bottom wall


32


and left and right side grip


33


and


34


of stamp assembly


21


.




Bottom wall


71


is provided with a depending central portion


76


which steps down from the left and right sides


71




a


and


71




b


of the bottom wall. The central portion


76


has a first or top planar surface


77


and a second or bottom planar surface


78


which extend parallel to each other.




Optional cushion


46


is secured to bottom surface


78


of the central portion


76


and embossing member


28


is secured to cushion


46


, in each case, in any of the manners discussed above with respect to stamp assembly


21


. Central portion


76


has a size and shape in plan which approximates the size and shape of cushion


46


. More specifically, the central portion


76


, like bottom wall


32


of stamp mount


27


above, has a length and width which are slightly larger than the length and width of cushion


46


.




In operation and use, stamp assembly


66


can be used in the same manner discussed above with respect stamp assembly


21


. Depending central portion


76


serves to further inhibit ink from gathering on the bottom of left and right sides


71




a


and


71




b


of the bottom wall


71


and thus being undesirably transferred to surface


23


of the sheet of paper


26


.




Stamp assembly


86


shown in

FIG. 4

has similarities to stamp assembly


21


and like reference numerals have been used to describe like components of stamp assemblies


21


and


86


. A handle member or handle


87


is included in stamp assembly


86


. The handle or stamp mount


87


is formed from a body


88


made from any of the suitable substantially rigid materials discussed above with respect to body


31


and is preferably made from an extruded plastic.




Body


88


has a substantially planar bottom wall


91


having a first or top surface


92


and an opposite second or bottom surface


93


. At least one finger-grippable wall extends upwardly from the bottom wall


91


. In this regard, the bottom wall has a center


91


a and a single wall or grip


94


is joined to the bottom wall at center


91




a


and, as shown, is formed integral with bottom wall


91


. The grip


94


extends upwardly from the center


91




a


of the bottom wall so that stamp mount


87


resembles an inverted T. Although the grip


94


can be of any size or shape, it is shown as being substantially Y-shaped in cross section. More specifically, grip


94


has a lower portion or stem


94




a


extending perpendicularly from bottom wall


91


and first and second arcuately-shaped arms


94




b


extending upwardly and outwardly from stem


94




a


. The top ends of arms


94




b


approach but do not engage each other. As so formed, arms


94




b


provide grip


94


with an upper portion that resembles a slotted tube. Bottom wall


91


and stem


94




a


and arms


94




b


of grip


94


have a thickness and length similar to the respective thickness and length discussed above with respect to bottom wall


32


and left and right grips


33


and


34


of stamp assembly


21


.




Optional cushion


46


is secured to bottom surface


93


of bottom wall


91


and embossing member


28


is secured to cushion


46


, in each case, in any of the manners discussed above with respect to stamp assembly


21


. Bottom wall


91


has a size and shape in plan which approximates the size and shape of cushion


46


. More specifically, bottom wall


91


has a length and width which are slightly larger than the length and width of cushion


46


.




In operation and use, stamp assembly


86


can be used in substantially the same manner as discussed above with respect to stamp assemblies


21


and


66


. Grip


94


can be easily grasped by at least two fingers of the hand of the user. The Y-shaped conformation of grip


94


facilitates such gripping by providing an enlarged upper portion to the grip, that is first and second arms


94




b


, which can be easily gripped between the thumb and the opposing fingers of a human hand.




In a further embodiment, a stamp assembly


101


is disclosed in

FIG. 5

that has similarities to stamp assembly


21


. Like referenced numerals have been used to describe like components of stamp assemblies


21


and


101


. A handle member or handle


102


is included in stamp assembly


101


. The handle or stamp mount


102


is formed from a body


103


that has a U-shaped cross section and can be extruded from any suitable substantially rigid material such as plastic. Any of the materials discussed above with respect to stamp mount


27


of stamp assembly


21


are suitable for handle body


103


.




A substantially planar bottom wall


106


having a first or left side


106




a


and a second or right side


106




b


is included within stamp mount


102


. The bottom wall


106


is arcuate in conformation so as to be convex and thus bow downwardly at bottom surface


112


. More specifically, the bottom wall


106


has a width between sides


106




a


and


106




b


ranging from 0.25 to eight inches and bows downwardly at its center a distance ranging from approximately 0.015 to 0.150 inch and preferably approximately 0.025 inch from an imaginary straight line drawn between the opposite sides


106




a


and


106




b


of the bottom wall


106


. The amount of the bow in bottom wall


106


is dependent on the size of stamp mount


102


. In this regard, the ratio of the bow in bottom wall


106


relative to the width of the wall


106


is typically greater for smaller sized stamp assemblies than for larger sized stamp assemblies.




At least one finger-grippable wall extends upwardly from the bottom wall


106


. In this regard, a first or left side wall


107


extends outwardly from left side


106




a


at a substantially right angle and a second or right wall


108


extends upwardly from right side


106




b


at a substantially right angle. Planar walls


107


and


108


, substantially identical to each other, are spaced apart from and parallel to each other. Bottom wall


106


and left and right side walls


107


and


108


each have a thickness and length similar to the respective thickness and length discussed above with respect to bottom wall


32


and left and right side walls


33


and


34


of stamp assembly


21


.




Bottom wall


106


of stamp assembly


101


has a first or top substantially planar surface


111


and a second or bottom substantially planar, smooth surface


112


which extend parallel to each other. Embossing member


28


is secured to bottom surface


112


in any of the manners discussed above with respect to the means for securing cushion


46


to bottom surface


37


of stamp assembly


21


. The bottom wall


106


has a size and shape in plan which approximates the size and shape of embossing member


28


. More specifically, bottom wall


106


has a length and width which are slightly larger than the length and width of the embossing member


28


.




In operation and use, stamp assembly


101


can be used in substantially the same manner as discussed above with respect to stamp assembly


21


. In general embossing member


28


is mounted to bottom surface


112


of stamp mount


102


and ink is applied to the raised surface


56


of the embossing member. After raised surface


56


engages paper surface


23


and the application force is so provided by the user, the user thereafter rocks stamp mount


102


back and forth about an axis extending parallel to left and right side walls


107


and


108


. Such rocking causes different segments of the raised surface


56


of embossing member


28


to sequentially engage paper surface


23


so that the whole of image


22


is formed on the paper


26


.




Embossing member


28


is removably mounted to bottom surface


112


. As a result, a plurality of embossing members (not shown) can alternatively be attached to the bottom surface


112


of bottom wall


106


for stamping different images on a surface of a worksheet, such as surface


23


of paper


26


.




Stamp assembly


101


is simpler than stamp assembly


21


in that left and right side walls


107


and


108


are simpler in construction relative to left and right side walls


33


and


34


of stamp assembly


21


. In addition, no cushion


46


is provided in stamp assembly


101


. It should be appreciated, however, that a cushion


46


can be included stamp assembly


101


and be within the scope of the present invention.




The convex disposition of bottom wall


106


of handle body


103


results in a concentration of the stamping force on a small portion of embossing member


28


. More specifically, such concentration of force occurs on a segment of the bottom wall


106


extending from the front to the rear of the bottom wall. The concentration produces a greater resultant force on paper surface


23


for a given application force relative to the same application force in a stamping assembly having a planar bottom wall, such as stamping assemblies


21


,


66


and


86


. In other words, a smaller application force is required by the user to provide an equal or even greater resultant force on the sequentially-engaged raised surface


56


of the embossing member


28


. The sequential concentrations of force on embossing member


28


facilitate the formation of image


22


. Stamp assembly


101


can more easily accommodate irregularities in paper surface


23


by being pressed into any recesses in surface


23


or contracting upwardly to accommodate any protuberances in the surface


23


. In addition, the concentration of stamp forces permits greater precision in the formation of image


22


on work surface


23


, particularly when stamp assembly


101


is transparent so that the formation of the image can be seen by the user through the material of the assembly


101


.




A further embodiment of the stamp assembly hereof is shown in FIG.


6


. Stamp assembly


121


shown therein is substantially similar to stamp assemblies


21


and


101


and like reference numerals have been used to describe like components of stamp assemblies


21


,


101


and


121


. A handle member or handle


122


that is U-shaped in cross section is included in stamp assembly


121


. Handle or stamp mount


122


is formed from a body


123


that can be extruded from any suitable substantially rigid material such as plastic. Any of the materials discussed above with respect to stamp mount


27


are suitable for handle body


123


. A bottom wall


126


having a first or left side


126




a


and a second or right side


126




b


is included in body


123


. A first or left side wall


127


extends upwardly from left side


126




a


and a second or right side wall


128


extends upwardly from right side


126




b


. Walls


127


and


128


are substantially identical to each other and are substantially similar to walls


107


and


108


of stamp assembly


101


.




Bottom wall


126


and left and right sidewalls


127


and


128


are thin-walled members relative to the corresponding walls of stamp assembly


101


. More specifically, bottom wall


126


and left and right side walls


127


and


128


each have a thickness ranging from 0.030 to 0.125 inch and preferably approximately 0.035 inch. The bottom wall


126


has a first or top surface


131


and a second or bottom surface


132


and is arcuate in conformation so as to be convex and thus bow outwardly at substantially smooth bottom surface


132


. The bow in bottom wall


126


can be similar in dimensions to the bow discussed above in bottom wall


106


of stamp assembly


101


. Embossing member


28


is secured to bottom surface


132


in any of the manners discussed above with respect to stamp assembly


21


. A cushion


46


can optionally be included in stamp mount


122


of the stamp assembly


121


.




In operation and use, the thinned bottom wall


126


and left and right side walls


127


and


128


of handle body


123


permit such walls to flex in the operation of stamp assembly


121


. Thus a user can squeeze left and right side walls


127


and


128


towards each other so as to change the radius of curvature and thus the convex arc provided in bottom wall


126


. The ability to vary the arc in bottom wall


126


can be valuable in the formation of image


22


. Among other things, reducing the radius of bottom wall


126


results in a narrower segment of embossing member


28


engaging paper surface


23


. As discussed above with respect to stamp assembly


101


, the application force on stamp mount


122


can be concentrated on a portion or segment of the bottom wall


126


. Stamp assembly


121


additionally permits the amount of application force exerted by the embossing member


28


on paper surface


23


to be varied in accordance with the deformation of handle body


123


.




In an alternative embodiment of a thinned-walled, flexible stamp assembly (not shown), a stamp assembly similar to stamp assembly


121


can be provided in which bottom wall


126


is planar or even concave. The flexible bottom wall of such a stamp assembly can be deformed into an arcuate shape by the user, in a manner similar to that discussed above with respect to stamp assembly


121


, to concentrate the application force on a portion or segment of the bottom wall for transfer thereby to the embossing member


28


secured thereto.




Stamp assemblies having support walls with concave or other conformations can also be provided. Stamp assembly


141


shown in

FIG. 7

has a handle member or handle


142


formed from a substantially rigid body


143


having the shape of an inverted T. Body


143


can be extruded from any suitable material such as plastic and is preferably formed from any one of the materials discussed above with respect to stamp mount


27


of stamp assembly


21


. Body


143


has a bottom wall


146


provided with a central portion


146




a


, a first or left side portion


146




b


and a second or right side portion


146




c


. The bottom wall


146


has a first or top surface


147


and a second or bottom substantially smooth surface


148


. At least one finger-grippable wall extends upwardly from the bottom wall and, more specifically, a single central wall or grip


151


extends upwardly from top surface


147


of central portion


146




a


at a right angle to the wall


146


. Bottom wall


146


and the generally planar central grip


151


can each have a thickness and length similar to the respective thickness and length discussed above with respect to bottom wall


32


and walls


33


and


34


of stamp assembly


21


.




Bottom wall


146


is formed with an arc and, more specifically, is concave in conformation so as to bow inwardly at bottom surface


148


. The bottom wall


146


can be formed with any suitable arc or bow. In the embodiment illustrated in

FIG. 7

, bottom wall


146


has a width ranging from 0.25 to eight inches between side portions


146




b


and


146




c


and bows upwardly at its center a distance ranging from 0.015 to 0.150 inch and preferably approximately 0.020 inch from an imaginary straight line drawn between the opposite side portions


146




b


and


146




c


of the bottom wall


146


. In the same manner as discussed above with respect to stamp assembly


101


, the amount of the bow in bottom wall


146


is dependent on the size of stamp handle or mount


142


. Top surface


53


of embossing member


28


is secured to bottom surface


148


of body


143


in any of the manners discussed above with respect to stamp assembly


21


. A cushion


46


can optionally be provided in stamp assembly


141


.




Stamp assembly


141


is used in substantially the same manner as stamp assembly


101


described above. After embossing member


28


has been suitably secured to bottom wall


146


, preferably by means of interfacial tack, ink is applied to raised surface


56


and the raised surface thereafter pressed against paper surface


23


. The concave shape of bottom wall


146


results in the opposite outer side portions


146




b


and


146




c


of the bottom wall first coming in contact with paper surface


23


. Further application of force to stamp assembly


141


results in bottom wall


146


moving to a flattened position so that substantially the entire raised surface


56


engages paper surface


23


to form image


22


thereon.




Stamp assembly


141


desirably utilizes a relatively thin bottom wall


146


, which reduces the material requirements and thus the cost of the stamp assembly


141


. The preformed concave shape in bottom wall


146


accommodates the flexibility of the wall


146


. If a planar, flexible bottom wall was used in a stamp mount having a center grip, the application pressure applied by the bottom wall would be greatest at the center of the wall and decrease outwardly towards the opposite sides of the wall as a result of the flexibility in the wall Stamp assembly


141


compensates for the flexibility in wall


146


by increasing the application pressure at the sides of the wall so as to provide an approximately even application pressure profile across the bottom of the wall


146


, similar to the application pressure profile one would expect if a rigid bottom wall


146


were utilized in stamp assembly


141


.




In another embodiment shown in

FIGS. 8 and 9

, a stamp assembly


161


is shown which comprises a handle member in the form of a hollow structure or container


162


for holding one or more embossing members


28


. Enclosure or container


162


can be of any suitable shape, such as round, oval, elliptical, rectangular or square, In one preferred embodiment, container


162


is in the form of a box that is substantially in the shape of a parallelepiped. Container or box


162


includes a bottom portion


163


made from a bottom wall


166


and four side walls


167


extending at right angles to each other and to the bottom wall


166


. Bottom portion


163


includes an interior cavity


168


formed by bottom wall


166


and side walls


167


. Bottom wall


166


preferably has a length and width at least equal to the length and width of embossing member


28


and side walls


167


have a height at least equal to the thickness of embossing member


28


and preferably equal to a multiple of such thickness so that interior cavity


168


can hold at least one and preferably a plurality of embossing members


28


. A cover portion or cover


171


is further included in box


162


. The cover


171


cooperatively mates with bottom portion


163


so as to removably attach to bottom portion


163


. Cover


171


can be completely removable from bottom portion


163


, as shown, or hinged in any suitable manner to the bottom portion


163


.




Bottom portion


166


is made from any suitable substantially rigid material such as any of the plastics discussed above with respect to handle body


31


. Box cover


171


can also be made from any suitable plastic such as any of the plastics discussed above. Although bottom portion


166


and cover


171


can be made from an opaque material, they are preferably made from a material which is at least partially transparent and preferably sufficiently transparent so as to permit viewing of an image therethrough. Box bottom portion


163


and cover


171


can also be made from other substantially rigid materials such as metal, ceramic, glass or wood.




Bottom wall


166


has a substantially smooth bottom surface


172


. Optional cushion


46


can be secured to bottom surface


172


in any of the manners discussed above with respect to stamp assembly


21


. Top surface


53


of embossing member


28


is secured to the bottom surface


47


of cushion


46


in any of the manners discussed above. Alterative, embossing member


28


can be secured directly to bottom surface


172


of box bottom portion


163


in any of the manners discussed above. Cushion


46


and embossing member


28


are shown in

FIG. 8

as being mounted to bottom surface


172


. One embossing member


28


is shown being stored in box bottom portion


163


in FIG.


9


.




In operation and use, at least one and preferably a plurality of embossing members


28


can be stored within internal cavity


168


of box


162


when not in use. When the box


162


is made from a transparent material, the embossing members


28


can easily be viewed within internal cavity


168


without removing cover


171


. When a user desires to form an image from one of the embossing members, the embossing member


28


is removed from box


162


and removably attached to bottom surface


172


of the bottom wall


166


or to optional cushion


46


attached to the bottom surface


172


. Thereafter, the user can grasp two of the opposite side walls


167


of box bottom portion


163


to press raised surface


56


against a suitable ink source and thereafter press the surface


56


against paper surface


23


to form image


22


thereon. If bottom portion


163


is empty during use or filled with only transparent embossing members


28


, the transparent material of box bottom portion


163


, as well as the transparent cushion


46


and embossing member


28


, permit the user to view placement of image


22


on paper surface


23


. Bottom wall


166


is generally planar and free of centrally disposed projections, such as central grips


94


and


151


described above, so as to facilitate viewing through the bottom wall


166


. Cover


171


can be mounted to bottom portion


163


or removed during use of stamp assembly


161


. The transparent material of cover


171


facilitates viewing through the cover when box


162


is closed with the cover


171


during use.




In a further embodiment shown in

FIG. 10

, a stamp assembly


181


comprising a handle member or handle


182


is shown. Handle or stamp mount


182


is made from a substantially rigid body


183


made from plastic or any other suitable material. Any of the materials discussed above with respect to handle body


31


are suitable for use in constructing handle body


183


. The plate-like body


183


has a first or top planar surface


186


and an opposite second or bottom surface


187


. In the illustrated embodiment, bottom surface


187


is planar, but it should be appreciated that the bottom surface


187


can be arcuate or convex like bottom surface


112


of stamp assembly


101


. At least bottom surface


187


and preferably top surface


186


are substantially smooth. Opposite first or left and second or right sides


188


extend between top and bottom surfaces


186


and


187


. Sides


188


are each provided with are recess


191


extending longitudinally there along for facilitating gripping of sides


188


by the fingers of a human hand. Body


183


is preferably made from a material which is at least partially transparent and preferably sufficiently transparent so as to permit viewing of an image through top and bottom surfaces


186


and


187


. Embossing member


28


and optional cushion


46


are secured to bottom surface


187


by any of the means discussed above with respect to stamp assembly


21


.




In operation and use, embossing member


28


is removably attached to body


183


, either directly to bottom surface


187


or to cushion


46


which is attached to the bottom surface


187


. When body


183


is made from a transparent material, viewing through the top and bottom surfaces


186


and


187


is facilitated during the pressing of raised surface


56


on paper surface


23


and the formation of image


22


thereon.




In another embodiment (not shown), stamp assembly


181


can be provided with a stamp mount that has a shape substantially similar to stamp mount


182


but provided with an internal cavity or chamber for storing one or more embossing members


128


. For example, the stamp mount can be extruded so as to be tubular in shape, with the bore so formed therein serving as an internal chamber. A cap can optionally be provided for closing the chamber at each end for better retaining the embossing member(s) within the stamp mount. As discussed above, the stamp assemblies disclosed herein can be in the form of a hollow structure or enclosure for, among other things, storing one or more embossing members


28


therein. Any suitable extruded structure can be provided for forming an internal chamber or cavity.




Although the invention has been described as having only a single embossing member


28


secured to the stamp mount at a single time, it should be appreciated that a plurality of embossing members can be utilized for customizing the image to be created by the stamp assembly. For example, several figures, each on a separate embossing member, can be arranged on the bottom surface of the stamp mount to form the desired scene to be created on work surface


23


. In another exemplary application, a plurality of individual letters can be assembled on the stamp mount to form a word.




In view of the foregoing, it can be seen that a new and improved stamp assembly having an embossing member that is removably secured to the stamp mount of the stamp assembly has been provided. The embossing member can be removably secured to the stamp mount by means of interfacial tack. The stamp assembly is preferably at least partially transparent so as to facilitate placement of the image on the surface of the workpiece. The surface of the stamp mount for receiving the embossing member can be arcuate in conformation and, more specifically, can be concave or convex. The stamp mount of the stamp assembly can be formed with a wall for receiving the embossing member that is bendable. The stamp mount of the stamp assembly can also be in the form of a container for storing the removable embossing member.



Claims
  • 1. A stamp assembly for use with an ink to create an image having an area on a surface of a workpiece comprising a handle member having a surface with an area at least approximating the area of the image, a flexible sheet-like embossing member having opposite first and second sides, the first side having a first side surface and the second side having an embossed portion with a raised surface corresponding to the image, the first side of the embossing member being formed from an elastomer selected from the group consisting of thermoplastic elastomers, crosslinked elastomers and noncrosslinked rubbery materials, the elastomer being modified through the use of at least one plasticizer so as to be a modified elastomer with increased tack and flow properties and permitting the embossing member to be removably secured by means of interfacial tack to the surface of the handle member, the embossed portion being adapted to receive ink on the raised surface and the raised surface being adapted to thereafter engage the surface of the workpiece to form the image on the workpiece.
  • 2. In a stamp assembly as in claim 1, the elastomer being selected from the group consisting of styrene butadiene rubber, styrene-ethylene-butylene-styrene rubber, polyisobutylene, silicone rubber, room temperature vulcanizing silicone and polyurethane elastomers.
  • 3. In a stamp assembly as in claim 1, the surface of the handle member being substantially smooth and being formed from a material having a high surface energy and the first side surface of the embossing member being formed from a material having a low surface energy.
  • 4. In a stamp assembly as in claim 3, the substantially smooth surface of the handle member being formed from a material having a surface energy greater than 30 dynes per centimeter.
  • 5. In a stamp assembly as in claim 3, the first side surface of the embossing member being formed from a material having a surface energy less than 30 dynes per centimeter.
  • 6. In a stamp assembly as in claim 1, the surface of the handle member being formed from a material that has the ability to be readily wetted by the first side surface of the embossing member.
  • 7. In a stamp assembly as in claim 1, the modified elastomer be a gel selected from the group consisting of silicon, styrene-butadiene-styrene and styrene-ethylene-butylene-styrene polymers.
  • 8. In a stamp assembly as in claim 1, each of the handle member and the embossing member being substantially transparent so as to permit viewing of the formation of the image on the workpiece.
  • 9. In a stamp assembly as in claim 1, the handle member including a bottom wall and at least one finger-grippable wall extending upwardly from the bottom wall, the bottom wall and the at least one finger-grippable wall being formed of a substantially rigid material.
  • 10. In a stamp assembly as in claim 9, the bottom wall having a center and the at least one finger-grippable wall extending upwardly from the center of the bottom wall so that the handle member resembles an inverted T.
  • 11. In a stamp assembly as in claim 9, the bottom wall having first and second opposite sides, first and second finger-grippable walls extending upwardly from the respective first and second sides of the bottom wall so that the handle member is U-shaped.
  • 12. In a stamp assembly as in claim 9, the bottom wall being bendable.
  • 13. In a stamp assembly as in claim 9, the handle member being a container having a bottom portion provided with an interior cavity and having a removable top portion that cooperatively mates with the bottom portion to close the container, the interior cavity having a size and shape to store the embossing member when the embossing member is removed from the surface of the handle member.
  • 14. In a stamp assembly as in claim 1, the surface of the handle member being concave.
  • 15. In a stamp assembly as in claim 1, the surface of the handle member being convex.
  • 16. In a stamp assembly as in claim 1, the handle member including a bottom wall, the bottom wall having a depending central portion being provided with the surface for receiving the embossing member, the depending central portion inhibiting the remainder of the handle member from contacting the workpiece during engagement of the raised surface with the workpiece.
  • 17. In a stamp assembly as in claim 1, the handle member including a bottom wall and a sheet of an elastomeric material adhered to the bottom wall, the sheet of the elastomeric material having the surface for receiving the embossing member whereby the sheet of the elastomeric material facilitates formation of the image on the workpiece.
  • 18. In a stamp assembly as in claim 17, the sheet of the elastomeric material being made from rubber.
  • 19. In a stamp assembly as in claim 1, the first side of the embossing member being formed from an elastomer that is crosslinked by one of peroxide, irradiation, room temperature vulcanization or other similar techniques.
  • 20. A stamp assembly for use with an ink to create an image having an area on a surface of a workpiece comprising a handle member having a bottom concave surface with an area at least approximating the area of the image, a layer of an elastomeric material, the elastomeric material permitting the layer to be removably secured by means of interfacial tack to the bottom surface of the handle member, a flexible sheet-like embossing member and means for securing the embossing member to the layer of an elastomeric material, the embossing member having a bottom provided with a raised surface corresponding to the image, the raised surface of the embossing member being adapted to receive ink and to thereafter engage the surface of the workpiece to form the image on the workpiece.
  • 21. In a stamp assembly as in claim 20, the means for securing the embossing member including means for securing the embossing member to the layer of an elastomeric material by means of an adhesive.
  • 22. In a stamp assembly as in claim 20, the means for securing the embossing member includes means for securing the embossing member to the layer of an elastomeric material by means of interfacial tack.
  • 23. In a stamp assembly as in claim 20, each of the handle member, the layer of an elastomeric material and the embossing member being substantially transparent so as to permit viewing of the formation of the image on the workpiece.
  • 24. A stamp assembly for use by a human hand with an ink to create an image having an area on a surface of a workpiece comprising a unitary handle member having a bottom wall and opposite first and second side portions and first and second spaced-apart side walls extending upwardly from the respective first and second side portions so that the handle member is substantially U-shaped in conformation, the bottom wall having a bottom surface with an area at least approximating the area of the image, a flexible sheet-like embossing member and means for adhering the embossing member to the bottom surface of the bottom wall, the embossing member having a raised surface corresponding to the image and being adapted to receive ink on the raised surface so that the raised surface can engage the surface of the workpiece to form the image on the workpiece whereby the first and second spaced-apart side walls can be gripped by two fingers of the human hand for forming the image on the surface of the workpiece.
  • 25. In a stamp assembly as in claim 24, the bottom wall and the embossing member each being substantially transparent so as to permit viewing of the formation of the image on the workpiece through the bottom wall.
  • 26. In a stamp assembly as in claim 24, the means for adhering the embossing member including means for adhering the embossing member to the bottom surface of the bottom wall by means of interfacial tack.
  • 27. In a stamp assembly as in claim 24, the bottom wall including a sheet of an elastomeric material having the bottom surface, the embossing member being adhered to the bottom surface of the sheet of an elastomeric material.
  • 28. In a stamp assembly as in claim 24, the bottom wall being bendable.
  • 29. A stamp assembly for use with an ink to create an image having an area on a surface of a workpiece comprising a unitary container provided with an interior cavity communicating with an opening in the container and having a bottom surface with an area at least approximating the area of the image, a flexible sheet-like embossing member removably adherable to the bottom surface, the interior cavity having a size and shape to fully receive the embossing member so that when the embossing member is removed from the bottom surface the embossing member can be stored in the interior cavity, a cover engageable with the container at the opening to enclose the embossing member within the interior cavity during storage and transport, the embossing member having a raised surface corresponding to the image, the embossing member being adapted to receive ink on the raised surface and to thereafter engage the surface of the workpiece to form the image on the workpiece.
  • 30. In a stamp assembly as in claim 29, each of the container, the cover and the embossing member being substantially parent so as to permit viewing of the formation of the image on the workpiece.
  • 31. In a stamp assembly as in claim 29, the container including a bottom portion and a sheet of an elastomeric material adhered to the bottom portion, the sheet of the elastomeric material having the surface for receiving the embossing member whereby the sheet of the elastomeric material facilitates formation of the image on the workpiece.
  • 32. In a stamp assembly as in claim 29, the cover being detachable from the container.
  • 33. An apparatus for use with a handle member having a surface and with an ink to create an image on a surface of a workpiece comprising a flexible sheet-like embossing member having opposite first and second sides, the first side being adapted to engage the surface of the handle member and the second side having an embossed portion with a raised surface corresponding to the image, the first side of the embossing member being formed from an elastomer selected from the group consisting of thermoplastic elastomers, crosslinked elastomers and noncrosslinked rubbery materials, the elastomer being modified through the use of at least one plasticizer so as to be a modified elastomer with increased tack and flow properties and permitting the embossing member to be removably secured by means of interfacial tack to the surface of the handle member whereby upon securing of the embossing member to the handle member the embossed portion can receive ink on the raised surface and the raised surface can thereafter engage the surface of the workpiece to form the image on the workpiece.
  • 34. In an apparatus as in claim 33, the elastomer being selected from the group consisting of styrene butadiene rubber, styrene-ethylene-butylene-styrene rubber, polyisobutylene, silicone rubber, room temperature vulcanizing silicone and polyurethane elastomers.
  • 35. In an apparatus as in claim 33, the modified elastomer being a gel selected from the group consisting of silicone, styrene-butadiene-styrene and styrene-ethylene-butylene-styrene polymers.
  • 36. In an apparatus as in claim 33, the first side of the embossing member being formed from an elastomer that is crosslinked by one of peroxide, irradiation, room temperature vulcanization or other similar techniques.
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Entry
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