US3601178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a wax model of a ring with hollow crown
Assignee: Individual
•
Filing: 1969-11-03
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Granted: 1971-08-24
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Expires: 1989-11-03
Abstract
Abstract A hard, relatively insoluble wax form of jewelry such as a finger ring with hollow, framelike crowns is made by first making a metal model of the interior of the crown. A mold is made from the metal model and a soluble wax model of the interior of the crown is then cast by use of the mold. A metal model of the crown is then used in making a metal model of the ring with the metal model of the crown filling the crown of the model of the ring. A mold is made of the metal model of the ring. The soluble wax model of the crown interior is then inserted in the mold of the ring and then relatively insoluble wax is poured into the mold. The wax cast of the model of the ring is then removed from the mold and the wax form of the crown interior is dissolved out.
Inventors
- 👤 Gaston Marticorena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:44
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
181 words
A method of making a hard insoluble wax form of articles of jewelry with hollow framelike crowns, comprising the steps of making a rigid first model of the crown interior; making a resilient first mold of the model of the crown interior by using said first model as a form; making a rigid soluble second model of the crown interior using the mold to cast said soluble model; making a rigid first model of said ring using said rigid first model of the crown interior to fill the crown of the ring; making a second mold using the completed rigid first model of the ring as a form; inserting said rigid soluble second model of the crown interior into the second mold; making a second model of said ring by filling said second mold with a relatively insoluble wax so that the insoluble wax surrounds said soluble second model of the crown interior; and dissolving out the soluble wax model of the crown interior from said second model of the ring to obtain a hard, insoluble wax form of the article.
Claim 2
Independent Claim
181 words
A method of making a hard insoluble wax form of articles of jewelry with hollow framelike crowns, comprising the steps of making a rigid first model of the crown interior; making a resilient first mold of the model of the crown interior by using said first model as a form; making a rigid soluble second model of the crown interior using the mold to cast said soluble model; making a rigid first model of said ring using said rigid first model of the crown interior to fill the crown of the ring; making a second mold using the completed rigid first model of the ring as a form; inserting said rigid soluble second model of the crown interior into the second mold; making a second model of said ring by filling said second mold with a relatively insoluble wax so that the insoluble wax surrounds said soluble second model of the crown interior; and dissolving out the soluble wax model of the crown interior from said second model of the ring to obtain a hard, insoluble wax form of the article.
Claim 3
Dependent Claim
16 words
A method as defined in claim 1, wherein said soluble second model is made of wax.
Claim 4
Dependent Claim
17 words
A method as defined in claim 2, wherein said first and second molds are made of rubber.
Claim 5
Dependent Claim
25 words
A method as defined in claim 3, wherein said first and second molds are each formed as two blocks with interfitting portions and facing cavities.
Claim 6
Dependent Claim
20 words
A method as defined in claim 4, wherein the rigid first model of the crown interior is made of metal.
Claim 7
Dependent Claim
19 words
A method as defined in claim 5, wherein the rigid first model of the ring is made of metal.
Claim 8
Dependent Claim
41 words
A method as defined in claim 1, wherein the first and second molds are made of rubber, the rigid first model of the crown interior is made of metal, and the rigid first model of the ring is made of metal.
Claim 9
Dependent Claim
30 words
A method as defined in claim 1, wherein said rigid first model of the crown interior is made of metal and is round in form with spaced lands defining grooves.
Claim 10
Dependent Claim
50 words
A method as defined in claim 8, wherein said rigid first model of the crown interior is formed with a central bore; and further comprising the step of inserting a cylindrical guide pin in said bore to anchor the rigid first model of the crown interior in said first mold.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |