Abstract: A method of forming a decorative panel having an embossed decorative indicia. The method includes the steps of forming a decorative design within an impressionable material to provide a positive mold. Then an elastomeric material is cast within the positive mold to provide a negative blanket casting. The negative blanket casting is removed from the positive mold. Next, an epoxy resin containing material is poured over the blanket casting to form an embossing plate having a decorative design substantially identical to the decorative design within the positive mold. Finally, a panel is embossed with the embossing plate under high temperature and pressure to form the decorative panel.

Abstract: A method of making microstructure bodies of plastic material. A microstructured plate-like base body which is made by any known molding procedure and which has a first side serving as a first reference plane and a second side which has plastic microstructures projecting therefrom is covered at its second side with a material layer that engages the microstructures, whereupon the material layer is machined to provide a second reference surface parallel to the first reference surface and the base body is then machined parallel to the second reference surface to expose the microstructures projecting therefrom and the material layer is finally removed selectively with respect to the plastic material to release the microstructured bodies.

Abstract: In order to manufacture low-weight, large-scale, artificial rocks resistant to weathering and faithfully rendered as in nature, first a malleable plastic reproduction is made of a natural-rock object. If called for, the reproduction is braced in a second method step, preferably by coating its back side with glass-fiber reinforced plastic. The work mold so manufactured receives a parting compound in a third operational step and thereupon preferably fiberglass mats are inserted and a coat of synthetic resin is applied to make a positive in the shape of a hollow artificial-rock blank. This artificial-rock blank is coated in a fourth operational step with a synthetic resin and fine-grain, preferably multicolored natural sand is deposited on or incorporated into the still moist coat of synthetic resin. Once this coat of synthetic resin with its incorporated natural sand has hardened, the artificial rock has been completed.

Abstract: An elastic layer is formed stably of constant shape without cutting of surface thereof and without difficult processing to make an internal surface of hollow in a mold into an off-right-circular cylinder shape. A matrix 1 is produced by shaping a periphery of rod material into an inverted crown shape of off-right-circular cylinder. Annular reinforcements 2, 3 are fixed on the both ends of inverted crown portion of matrix 1. The matrix 1 with the reinforcements 2, 3 is dipped in an electrolytic solution 5a, so that a nickel alloy is deposited over a surface of matrix 1 by electroforming to obtain a mold 4. The mold 4 is cut outside the reinforcements 2, 3 and a hollow for dissolution removal is perforated along the axis of matrix 1. The mold 4 is dipped in a corrosive solution which can dissolve only the matrix 1, so that only the matrix 1 is dissolved to remove away from the mold 4. The remaining mold 4 will have a hollow of inverted crown therein.

Abstract: A method for making tubular members, each of which is coated with a decorative layer that has a randomly distributed chip pattern, includes the steps of: (A) preparing tube products, each of which having two ends and an intermediate portion between the two ends; (B) preparing a mold having a plurality of mold cavities; (C) sleeving detachably a pair of positioning members around the two ends of each of the tube products for enclosing and centering the two ends, and placing each of the tube products and the positioning members associated therewith in a respective one of the mold cavities; (D) forming a covering around the intermediate portion of each of the tube products by filling each of the mold cavities with a coating composition containing chips; (E) removing each of the covered tube products and the positioning members associated therewith from the mold, and detaching the positioning members from each of the covered tube products; and (F) machining and polishing the covered tube products, and cutting off

Abstract: Thermoplastic resin powders of cellulose acetate esters in which essentially 80% or more of the particles pass through a 100 mesh screen (U.S. Sieve Series) and essentially 50% pass through a 200 mesh screen (U.S. Sieve Series) are desirable and useful as a filler material for investment casting waxes. The cellulosic thermoplastics resin powders are environmentally safe when used as filler material for investment casting wax compositions since the powders produce essentially no carcinogenic materials on combustion. The powders are as effective as acid fillers and set relatively fast thus improving cycle time in the die but do not produce an adverse effect of shell cracking nor react with the slurry.

Abstract: A porous mesh structure is prepared in sheet form having a unique arrangement of main and secondary troughs on a first surface, and openings extending therethrough. The arrangement of troughs and openings creates an elaborate matrix of pores when the sheet is layer on itself in a front to back manner. This arrangement of pores and support structure emulates certain cortical bone structures and is therefore very effective as an artificial bone material. In addition, the porous structure has significant other potential uses outside the medical field and can be effectively applied accordingly, based on its fundamental structural attributes.

Abstract: This invention relates to a method of creating a seamless printing master for use with an embossing roll to ultimately produce a textured wall or floor covering. A hardenable material is applied to the textured surface of a positive printing master section. The positive printing master section is pressed onto the embossing roll and the hardenable material is allowed to cure to a hardened state. The positive printing master section is then removed to expose a negative printing master region which is the negative image of the pattern contained in the positive printing master section, imprinted in hardened material, and adhered to the embossing roll. The process is repeated, either reusing the original positive printing master section or using a different positive printing master section, overlapping positive printing master sections onto previously formed negative printing master regions until the entire outer surface of the embossing roll is covered.

Abstract: A method of replicating surface textures by providing a laminar, dimensionally stable, flexible mold having an impression of the surface texture to be formed on one side thereof, applying a layer of fluid casting material to the flexible mold, and partially curing the resinous material wherein the impression is transferred to the partially cured resinous material. The flexible mold and layer of partially cured resinous material are then secured to a recipient surface, and the material is fully cured, and the flexible mold removed, leaving a surface texture on the recipient surface.

Abstract: In order to manufacture low-weight, large-scale, artificial rocks resistant to weathering and faithfully rendered as in nature, first a malleable plastic reproduction is made of a natural-rock object. If called for, the reproduction is braced in a second method step, preferably by coating its back side with glass-fiber reinforced plastic. The work mold so manufactured receives a parting compound in a third operational step and thereupon preferably fiberglass mats are inserted and a coat of synthetic resin is applied to make a positive in the shape of a hollow artificial-rock blank. This artificial-rock blank is coated in a fourth operational step with a synthetic resin and fine-grain, preferably multicolored natural sand is deposited on or incorporated into the still moist coat of synthetic resin. Once this coat of synthetic resin with its incorporated natural sand has hardened, the artificial rock has been completed.

Abstract: A method of making a mold from a model is disclosed. A mold carrier is formed having an aperture therein. The aperture has a configuration generally corresponding to the shape of the model. The model is positioned within the aperture such that a space is created between the outer peripheral surface of the aperture and the outer peripheral surface of the model. A resilient first material in its liquid state is poured into the space such that the first material substantially covers the outer peripheral surface of the model. The resilient first material is allowed to solidify in the space such that a resilient mold insert is formed. The mold insert forms an impression of the outer peripheral surface of the model and is disposed along the inner peripheral surface of the aperture. The model is removed from the resilient mold insert. A second material in its liquid state is poured into the aperture of the mold carrier with the resilient mold insert disposed along the inner peripheral surface of the aperture.

Abstract: A process for forming an artificial rock is disclosed. The process includes forming an outer mold having an outer surface and inner surface, the inner surface defining the size, shape and detail of the artificial rock to be formed. An inner mold is formed to be receivable within the outer mold. The inner mold and outer mold are secured in place relative to each other to define a space therebetween. Molding material is poured into the space between the inner mold and outer mold. The molding material is allowed to harden to form an artificial rock within the space. The molds are then separated leaving the artificial rock.

Abstract: Release of a resin mold from a photopolymeric mold is enhanced by using an unsaturated fatty acid ester release agent in the photopolymeric composition. In addition to providing quick release of the resin mold, the incorporation of the unsaturated fatty acid ester improves the flexibility of the photopolymeric mold without sacrificing tensile strength or hardness. The resin mold is used to fabricate rubber plates for ink printing.

Abstract: This invention includes an apparatus and method for molding and curing a curable composite patch used for repairing damaged contoured surface structures. The molding apparatus has a fluid impermeable outer container having a flexible outer wall. A flexible, fluid impermeable inner container containing a moldable granular material is positioned within the outer container and has a flexible molding wall on which the composite patch can be placed. Inner and outer ports are located on the inner and outer containers for evacuating the inner and outer containers. A model of an undamaged surface is formed by positioning the molding wall of the inner container against an unaffected surface and evacuating the inner container so that the granular material is rigidly held in a molded form. The patch is placed on the molding wall and the outer container is sealed with the outer wall positioned over the patch and molding of the inner container.

Abstract: The body part mold system includes a method of making accurate replicas of body parts, with the steps of the method comprising using an elongate prefabricated hollow transparent support form having an opening at one end and a slit on one side, inserting the body part through the opening into the form, sealing the slit so as to be leak-proof, pouring into the support form a liquid molding material containing alginate that rapidly sets to form a gelatinous matrix containing a negative impression of the body part, releasing the body part from the mold to leave a negative impression of the body part, casting a replica of the body part in the mold, and removing the replica from the mold. The method yields accurate replicas of body parts for medical, artistic, and other uses. The support forms may be either rigid or somewhat flexible, and are reusable. The transparency of the support forms permit precise positioning of the model or patient and monitoring of the filling of the form with molding material.

Abstract: A method of making a ceramic burner head includes the steps of forming a positive mold that conforms to the shape of a burner head and providing a partition plate to the positive mold; forming a negative plaster mold by the use of the positive mold; introducing a ceramic slurry into a mold cavity of the negative mold; causing the ceramic slurry in contact with a surrounding wall that confines the mold cavity of the negative plaster mold to possess a layer of dried ceramic with a predetermined thickness, and to further possess a hollow portion that is confined by the layer of dried ceramic and that is filled with a non-dried ceramic; removing the negative plaster mold and providing the layer of dried ceramic with burner holes; and sintering the layer of dried ceramic to form the ceramic burner head.

Abstract: A method including: based on a primary mold having a surface pattern identical with that of a composition to be produced, making a secondary mold having a low melting point sprayed metal layer of Zn or the like to which the surface pattern of the primary mold is transferred; next, after carrying out mold-releasing treatment on the secondary mold surface, spraying a high melting point metal such as Ni or the like; reinforcing the back side of the thus-formed high melting point sprayed metal layer with FRP or the like; hardening said FRP or the like; and then, releasing a composition consisting essentially of the high melting point sprayed metal layer and the reinforcing resin layer from the secondary mold.

Abstract: A toothed belt construction, preformed fabric liner therefor and methods of making the same are provided, the preformed fabric liner being adapted to line the toothed surface of a toothed belt construction and having serially disposed tooth-shaped projections throughout the length thereof that substantially accurately correspond to the teeth of the belt construction so as to line the toothed surface thereof, the preformed fabric liner comprising an endless tubular sleeve.

Abstract: The method of fabricating a complex part made of composite material and having a plurality of panels oriented in diverse angular relationship, and utilizing a plurality of conformable cauls upon which the composite material is individually laid up and which cauls cooperate to form one of the molds used in the co-curing of the individually laid-up composite materials.

Abstract: A method of making a mold assembly for molding inner and outer shells of an equipment shelter utilizes a generally rectangular frame on which are supported a plurality of large flat panels formed of plywood and covered by thin sheets of stainless steel. The panels are separated by rib gaps on the sides and corner gaps at the corners which are closed by temporary, wooden rib and corner patterns. A reinforced plastic laminate is applied to the temporary patterns to form negative molds. When cured, the negative molds are removed from the frame, along with the temporary patterns. A reinforced plastic laminate is applied to each of the negative molds and cured to form permanent rib and corner molds. The permanent molds are positioned in their respective rib and corner gaps to complete the mold assembly.

Abstract: An embossing roll is formed by a process which includes molding a seamless embossing roll within a seamless sleeve. The sleeve has indicia disposed about the inner circumference and which is then reverse molded into the roll.

Abstract: My invention relates to the art of making three dimensional impressions and likenesses. More specifically, my invention is an improvement of making three dimensional duplicate of a persons facial appearance and expression.

Abstract: A process for forming an artificial rock is provided. The process includes forming an outer mold having an outer surface and inner surface, the inner surface defining the size, shape and detail of the artificial rock to be formed. An inner mold is formed to be receivable within the outer mold. The inner mold and outer mold are secured in place relative to each other to define a space therebetween. Molding material is poured into the space between the inner mold and outer mold. The molding material is allowed to harden to form an artificial rock within the space. The molds are then separated leaving the artificial rock.

Abstract: An improved method for the repair of fiberglass boat hulls by replicating surface textures on the boat hulls is disclosed. A laminar, dimensionally stable, flexible mold is formed having a negative impression of the surface texture to be replicated formed on one side thereof. The laminar, dimensionally stable, flexible mold then is placed atop a recipient boat hull surface and a layer of fluid casting material. Pressure is applied to the laminar, dimensionally stable, flexible mold to expel entrapped gas from the fluid casting material and to evenly distribute the flexible casting material over the recipient hull surface. The fluid casting material is cured, and the laminar, dimensionally stable, flexible mold is removed. A replica of the surface texture remains on the recipient boat hull surface.

Abstract: A substrate and method of manufacture wherein a substrate is molded from particulate material wherein grooves on and through the body are formed during substrate molding and prior to sintering. The substrate includes all buss structure molded therein. Cooling of chips is provided by providing a heat sink in grooves formed within a substrate and beneath the chips. Microcircuits are formed by disposing on the substrate and interconnecting via buss structures on the substrate various semiconductor dies with encapsulation of some or all of the substrates and components thereon, if desired. In addition, connection from the board to external circuits is available by means of an edge connector.

Abstract: Golf balls are manufactured by supplying a golf ball - forming material into a mold defining a cavity of a predetermined surface pattern, thereby forming a golf ball having a surface pattern transferred from the mold cavity surface pattern. The mold is prepared by way of electroforming. First using an elastic non-metal profiling material, a male duplicate master is fabricated from a female standard mold having at least one accessory for assisting molding or post machining such as a parting surface and reference surface. An electroformed mold is fabricated from the male duplicate master. This electroformed mold is ready for use as the ball manufacturing mold.

Abstract: A method of making a mold assembly for molding inner and outer shells of an equipment shelter utilizes a generally rectangular frame on which are supported a plurality of large flat panels formed of plywood and covered by thin sheets of stainless steel. The panels are separated by rib gaps on the sides and corner gaps at the corners which are closed by temporary, wooden rib and corner patterns. A reinforced plastic laminate is applied to the temporary patterns to form negative molds. When cured, the negative molds are removed from the frame, along with the temporary patterns. A reinforced plastic laminate is applied to each of the negative molds and cured to form permanent rib and corner molds. The permanent molds are positioned in their respective rib and corner gaps to complete the mold assembly.

Abstract: A process for making a ceramic dipping former from silicized silicon carbide by making an absorbent negative mold of the ceramic dipping former containing preparing a suspension containing at least two particle size fractions of silicon carbide, a binder and water and pouring the suspension into the absorbent negative mold, drying the suspension in the absorbent negative mold, opening the absorbent negative mold and removing a silicon carbide green body, and further drying and silicizing the green body in a drying oven at a temperature between approximately 1400.degree. C. to 1750.degree. C. under reduced pressure.

Abstract: A method of faithfully reproducing a multicolor image having three-dimensional texture utilizes a photomechanically reproduced copy of the image on a carrier substrate which is suitable for embossing and a matrix providing the three-dimensional textured characteristics of the image is used to electrolytically form a female embossing die corresponding to the shape of the matrix whereupon a complemental male embossing die is made by which the carrier may be squeezed between the male and female dies to produce a highly accurate copy exhibiting the coloration and fine detail of the image texture.

Abstract: This invention relates to investment casting compositions comprising (i) a refractory material, e.g., a ceramic material, and (ii) a soluble core material comprising one or more block polymers characterized by an ABCBA structure. This invention also relates to methods for investment casting and to the manufacture of molded articles. The soluble core materials exhibit desirable breaking strength, dissolution rate and surface characteristics.

Abstract: A toothed belt construction, preformed fabric liner therefor and methods of making the same are provided, the preformed fabric liner being adapted to line the toothed surface of a toothed belt construction and having serially disposed tooth-shaped projections throughout the length thereof that accurately correspond to the teeth of the belt construction so as to line the toothed surface thereof, the preformed fabric liner including an endless tubular sleeve that has the tooth-shaped projections formed therein while the fabric liner is still in the endless tubular sleeve form thereof and being telescoped onto an externally toothed cylindrical mold member by axially sliding the preformed endless tubular sleeve thereon before a belt sleeve is subsequently formed on the mold member to make the toothed belt construction.

Abstract: A slip casting mold suitable to be used for the production of a hollow ceramic article for insert casting can be easily produced by a method wherein granules having an average grain size of at least 30 .mu.m are adhered to the surface of a mold to produce a mold having a 10 point average surface roughness R.sub.z of at least 30 .mu.m, and the resulting mold is used in the production of the slip casting mold.

Abstract: A method of producing a prosthetic implant for a predetermined organ site. Three-dimensional data including surface contour information of the organ site is obtained and a physical life size model of at least a part of the surface contour of the organ site is produced based on the three-dimensional data. Thereafter, an implant model is formed onto the surface of the physical organ model, and a prosthetic implant is produced from the implant model using a casting process.

Abstract: A matrix as shown in FIG. 3 and suitable for use in an injection molding process or a compressing molding process for the manufacture of optically readable information carriers comprising an optically readable information track, in which the matrix comprises a metal supporting plate 11 which on one side comprises a layer of a radiation-cured synthetic resin composition 8 comprising the negative of the information track.

Abstract: In the manufacture of a wax pattern for use in the lost wax casting of a bladed rotor of the radial flow type, the bladed region of a master pattern is enclosed by a curable epoxy resin/aluminium powder composition. Sufficient of the cured resin composition is then machined away so that a plurality of resin composition segments are defined, one segment being interposed between adjacent blades on the master pattern. The segments are then removed from the master pattern and placed in an appropriately configured die member so as to define a complete die for the production of a wax pattern in the form of the master pattern.

Abstract: A nursing device provides a nursing or pacifier nipple for use with nursing infants, and a method for manufacturing such articles. The device comprises an exact replica of the mother's nipple incorporated onto a bottle, specialized dispenser, or pacifier. The nursing device is formed from a mold taken of the nursing mother's natural breast and nipple.

Abstract: A formwork for a draft tube which includes ganged precast forms, each precast form corresponding to a curved segment of the draft tube. The precast forms are molded with continuous side plates extending thereabout and anchored in the precast concrete form and projecting beyond the surface opposite to the contact surface to provide a flange. A fastening means for attaching adjacent forms with a space therebetween to allow for stripping. A method includes determining the outline of the inner surface of the draft tube and dividing it into segments and preparing molds to make precast forms corresponding to each segment. The precast forms are assembled and shored to provide the draft tube ganged formwork, and concrete is poured about the draft tube formwork and is cured. The precast forms are stripped from the set concrete structure and reused in another draft tube formwork.

Abstract: A rigid, durable construction material is described along with a method for making the material. The material is particularly characterized by having a specific, textured surface which can resemble stucco and which can be reproduced exactly any desired number of times. The unique surface characteristics of the invention are obtained by preparing a reusable mold which is obtained by a reverse casting of a polymeric gel onto a cellular foam surface. The construction material of the invention is essentially a laminated, rigid backing having a polymeric surface coating with the desired texture obtained by casting a polymeric gel onto the reusable mold.

Abstract: Segments of tire tread are utilized as patterning elements to produce elastomeric form liners useful for creating designs on poured concrete structures. The segments of tire tread are arranged in the interior of an open-faced mold box, and liquified elastomeric material is poured into the mold box and allowed to solidify. An elastomeric form is then separated from the mold box. This form may be used itself as a form liner, but is preferably used as a mold to produce further generations of forms and form liners. The form liners are used to line the interior of a concrete form, and the tread patterns are thereby imparted to the surface of the resulting concrete structure.

Abstract: Epoxy tooling which inherently expands and contracts with temperature changes for making parts of metal or plastic has elongated rods extending through guide tubes within the tooling and compression washers or plates on opposite sides thereof. These compression devices for strengthening the tool can be selectively adjusted toward and away from one another using nuts threaded on the rods for varying the compression load on the tooling in accordance with varying tool operating loads, working temperatures and amounts of expansion or contraction. Epoxy tools for molding plastics are heated and expanded to a working temperature and then compressively loaded in selected areas prior to molding operations to prevent tool stress cracking or epoxy tools for metal stamping are compressively loaded and supported in selected areas of high tensile stress and operated at room temperatures for high load metal stamping without fracture.

Abstract: A process for producing an information carrier containing recorded audio and/or video information wherein a web of a thermoplastic material is extruded onto the patterned surface of a metal master and pressure is applied to force said thermoplastic material into contact with the metal master. The thermoplastic material is cooled to a temperature below its softening point to form an imaged thermoplastic web which is separated from the metal master. Then a thin film of metal particles is deposited on the imaged surface of the thermoplastic web and said metallized thermoplastic web is laminated with a substrate carrying an uncured coating of a radiation curable resin. The resin is cured and individual information carriers are separated from the web of information carrying laminate. A center hole is placed in the separated individual information carriers, when appropriate.

Abstract: A method of producing a resin mold that includes the steps of pouring a first resin into a metal mold, curing the first resin at a first temperature thereby making an intermediate resin mold made of the first resin, separating the intermediate resin mold from the metal mold, pouring a second resin into the intermediate resin mold, curing the second resin at a second temperature thereby making a final resin mold made of the second resin and separating the final resin mold from the intermediate resin mold, wherein by selecting the first and second curing temperatures of the first and second resins, the final resin mold will have the same size as that of the metal mold.

Abstract: A method of forming a slush mold and a synthetic resin skin utilizing the slush mold. The method includes the steps of roughing a foamed synthetic resin surface to define a prototype having a plurality of irregularly spaced and irregularly sized recesses, forming a metal mold to have a molding surface accurately complementary to the prototype surface and molding a skin of synthetic resin against the molding surface of the metal mold. The recesses preferably have a cross section dimension in the range of approximately 170 to 500 microns and a depth in the range of approximately 8 to 133 microns. Narrower preferred ranges are disclosed. The surface preferably has a regular unbiased variance of less than approximately 300 microns and preferably less than 200 microns.

Abstract: A process for rapidly forming a flexible mold for finely detailed objects from a radiatively curable molding composition includes coating at least a portion of the surface of a three-dimensional object with a fluid molding composition. The coating is cured by exposing the fluid coating to radiative energy to form an elastic, flexible layer of cured molding composition on the object. The coating and curing steps can be repeated to build up the flexible mold until a predetermined minimum has been attained. The cured molding composition is removed from the object, and is suitable for immediate use as a mold to cast duplicate reproductions of the object.

Abstract: A method of custom manufacturing of shoes at a specified heel height is disclosed and includes forming a positive impression mold of the foot from a negative impression mold made with the foot oriented at the specified heel height. A sold impression form is provided having an upper surface shaped to correspond to the lower surface of the sole of a shoe with the specified heel height. The positive impression mold is located with its lower surface separated from the upper surface of the sole impression form by a distance approximating the desired sole thickness, after which a settable material adapted to harden to form a suitable sole is introduced into the space between the positive impression mold and the sole impression form. The sole impression form is then removed from the sole and the desired upper materials are attached to the sole to generally conform to the shape of the positive impression mold.

Abstract: A method to obtain corrected impressions of the foot so as to produce corrective soles including two or three superimposed rigid frames connected to a supporting structure secured by arms of different length joined to the supporting structure. Each frame is equipped with two flexible walls which, along with the frame, delimit a sealed enclosure filled with a granular material, the enclosure communicating with a suction device.

Abstract: A method for producing concrete products provided with inlaid patterns includes (a) preparing a reusable mold provided with recessed patterns by applying ultra violet rays on the surface of an ultra-violet-ray setting resin plate, (b) preparing a waste mold provided with recessed patterns from the reusable mold, the waste mold being made of a soluble material which can be dissolved by water, solution or heat, (c) casting concrete into the waste mold and solidifying the concrete to provide a concrete block on the waste mold, (d) dissolving and removing the waste mold from the concrete block and providing recessed patterns on the surface of the concrete block, (e) filling a coloring material into the recessed patterns on the surface of the concrete block and solidifying the coloring material, and (f) grinding the surface of the concrete block to produce concrete products provided with inlaid patterns on the surface thereof.

Abstract: A method and apparatus for manufacturing a composite article by use of a mold core and a cavity block and wherein a skin and insert are placed in the mold cavity and foam precursors are poured into the mold cavity to complete the article includes a process in which a series of part replicas are formed and used to cast thermally stable liners that are carried by the mold core and mold cavity. The thermally stable liners have low melt temperatures and can be reused and recast following wear during the molding process. The liners are made from material which has low shrinkage and expansion rates to define a mold assembly that will produce repeatable parts.

Abstract: By using an existing ball nut and ball nut screw of a ball nut screw assembly as master models, imprint molds can be molded from a silicone rubber material which positively profiles the threading of the ball nut and ball nut screw with the crossover channel in the master model of the ball nut. A thermoset resin is added to the imprint molds and cured to form unitized all plastic ball nuts and ball nut screws with the helical grooving for accommodating the train of balls including the crossover channel in the ball nut molded therein to thereby provide an easily reproducable ball nut and screw assembly.

Abstract: The disclosure is directed to an electrodeposition process utilizing molds of original objects. The molds are placed, preferably horizontally, into the electrodeposition bath. The resulting product utilizes the mold-facing surface as the final surface of the product. The disclosure is also directed to a process for making molds useful for the electrodeposition process of the invention. The process is particularly useful for producing metal reproductions of original artworks.