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WO2007111613A1 - Procédé et appareil permettant de fixer des pierres précieuses de forme spéciale - Google Patents

Procédé et appareil permettant de fixer des pierres précieuses de forme spéciale Download PDF

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Publication number
WO2007111613A1
WO2007111613A1 PCT/US2006/012770 US2006012770W WO2007111613A1 WO 2007111613 A1 WO2007111613 A1 WO 2007111613A1 US 2006012770 W US2006012770 W US 2006012770W WO 2007111613 A1 WO2007111613 A1 WO 2007111613A1
Authority
WO
WIPO (PCT)
Prior art keywords
gemstone
wax
replica
wax replica
pendant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2006/012770
Other languages
English (en)
Inventor
Arthur Suozzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2007111613A1 publication Critical patent/WO2007111613A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/02—Settings for holding gems or the like, e.g. for ornaments or decorations
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments

Definitions

  • Precious stones hereafter “gemstones” are generally attached to finger rings, earrings, bracelets and the like by arranging prongs extending from the carrier and placing the gemstones within the prongs in press-fit relation. The requirement of providing prongs and the like to hold such gemstones increases the jewelry production process.
  • a wax model replica of the pendant containing the gemstone is first required.
  • a large number of natural gemstones having odd- shapes, such as rough diamonds for example, must be shaped and polished to fit within the wax model, or the wax model must be adapted to receive the gemstone, at a substantial increase in production costs.
  • One purpose of the instant invention is to describe a simple and economical method for attaching an odd-shaped gemstone to the wax model, without later requiring cement, prongs, channels or other mechanical means of attachment when the gemstone is later attached to the metal carrier.
  • a model of a piece of jewelry that is to contain an odd-shaped gemstone is first cast in wax to provide a replica of the jewelry which is then cast in a plaster mold to receive the carrier metal.
  • the gemstone Prior to casting the plaster mold, the gemstone is heated above the melting temperature of the wax replica and is pressed therein. Once the wax has cooled in the vicinity of the gemstone, the gemstone is captured within the wax replica, which is then used to form the plaster mold. Alternatively, pressure is applied to the gemstone in contact with the wax replica surface to embed the gemstone at room temperature and the wax replica is then used to form the plaster mold. Liquid silver or gold metal is then poured within the plaster mold to replace the plaster to form the finished product.
  • Other pieces of jewelry containing gemstones, such as rings, bracelets, earrings and the like can be formed in a similar manner.
  • Figure 1 is a top planar view of a pendant formed in a wax replica
  • Figure 1 A is a side planar view of the wax replica of Figure 1 prior to placement of the gemstone;
  • Figure 2 is a front perspective view of the wax replica of Figures 1 and 1A with the gemstone in contact with a surface of the wax replica and a heating tool in contact with a surface of the gemstone;
  • Figure 3 is a front perspective view of the finished pendant according to the invention and containing the gemstone of Figure 2 with a necklace chain attached thereto.
  • a wax replica pendant 10 is depicted in the form of a carrier arm
  • the wax replica pendant 10 is the first step in producing a similar pendant in the manner described in aforementioned US Patent No. 4,392,289 wherein the wax replica is then cast in plaster and the plaster is replaced by metal.
  • the material for the wax replica pendant comprises a soft wax such as jewelry wax or dental wax.
  • the replica pendant 10 is shown in Figure 1A depicting the gem support plate
  • a gemstone 18, such as a rough diamond, shown in Figure 2 is first positioned on the surface of the plate 12 the wax replica pendant 10 and is heated upon contact with a heater 21 on the operating end of a heat gun 19 by manipulation of the handle 20. Electric power is supplied to the heat gun 19 via the electric cord 22.
  • One effective heat gun is a "MasterTouch" obtained from Kerr Manufacturing. The high thermal conductivity of the diamond material rapidly raises the temperature of the gemstone 18 above the melting point of the wax material such that the portion of the plate 12 in contact with the gemstone 18 melts and becomes displaced by the gemstone as indicated at 18A.
  • a jeweler's hand tool could be used in place of the heat gun 19 to apply pressure to the gemstone 18 to force the gemstone within the plate 12 at room temperature.
  • the pendant mold 10 is then subjected to the plaster and metal molding process, described earlier, such that the gemstone 18 remains in position within the metal pendant 10' as best seen by referring now to Figure 3.
  • the final metal pendant 10' fixedly retains the gemstone 18 within the metal plate 12' by the large surface area of the rough surface of the gemstone 18 in contact with the plate 12' such that no prongs or cement are required to retain the gemstone therein.
  • a method has herein been described whereby an odd-shaped gemstone is inserted within a wax jewelry replica under pressure at room temperature, or at an elevated temperature, to allow insertion of the gemstone within the wax surface.
  • the metal Upon later insertion of the liquid metal within the final plaster mold, the metal becomes displaced in the region of contact with the gemstone for permanent attachment therewith.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Adornments (AREA)

Abstract

Selon la présente invention, un bijou, tel un pendentif, est d'abord moulé dans de la cire afin d'en obtenir une réplique en cire. Une gemme est chauffée au-delà de la température de fusion de la réplique en cire et y est comprimée. Dans une variante, la gemme est disposée sur la surface de la réplique en cire et une pression est exercée sur la gemme afin de l'enfoncer partiellement sur la surface de la réplique en cire à température ambiante. La réplique en cire est ensuite utilisée pour former le moule en plâtre de Paris dans lequel le métal liquide est versé par la suite en vue de remplacer le plâtre et d'obtenir le produit fini.
PCT/US2006/012770 2006-03-24 2006-04-05 Procédé et appareil permettant de fixer des pierres précieuses de forme spéciale Ceased WO2007111613A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38939506A 2006-03-24 2006-03-24
US11/389,395 2006-03-24

Publications (1)

Publication Number Publication Date
WO2007111613A1 true WO2007111613A1 (fr) 2007-10-04

Family

ID=38541434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/012770 Ceased WO2007111613A1 (fr) 2006-03-24 2006-04-05 Procédé et appareil permettant de fixer des pierres précieuses de forme spéciale

Country Status (1)

Country Link
WO (1) WO2007111613A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758517A (en) * 1996-07-18 1998-06-02 M. Fabrikant & Sons, Ltd. Method and apparatus to set precious stones without hammering
US6493912B1 (en) * 1998-09-02 2002-12-17 China Diamond Production Company Limited Stone setting methods

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758517A (en) * 1996-07-18 1998-06-02 M. Fabrikant & Sons, Ltd. Method and apparatus to set precious stones without hammering
US6493912B1 (en) * 1998-09-02 2002-12-17 China Diamond Production Company Limited Stone setting methods

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