Garabed B Ayvazian

US Patent:

6554052, Apr 29, 2003

Filed:

Sep 9, 2002

Appl. No.:

10/237218

Inventors:

Ervant Hashimian - Middle Village NY
Garabed Ayvazian - Rego Park NY

Assignee:

Unimold Cast, Ltd. - New York NY

International Classification:

B22C 904

US Classification:

164 35, 164 45, 164516

Abstract:

There is provided a method or process for fabricating a hollow jewelry article which is hollowed or bored out to an arcuate estent of 200Â or greater. In accordance with this process, a metal ring model is prepared comprising a solid shank and a metal plate supported along the internal perimeter of the shank and arcuately extending at least 200Â therealong. A first metal mold is produced from the metal ring model having the external shape of the jewelry article to be manufactured. From this mold, a wax model of the jewelry article is produced which is first filed down and then cast in order to form a metal model of a core insert; the core insert, like the ring model, has a plate disposed along the perimeter of the shank. This core insert is used to produce a second metal mold. This second mold may then be used repeatedly in order to form a soluble wax core insert model which is then inserted into the cavity of the first mold in order to define the hollow region of the article.

US Patent:

7080678, Jul 25, 2006

Filed:

Nov 4, 2004

Appl. No.:

10/981113

Inventors:

Ervant Hashiman - Middle Village NY, US
Garabed Ayvazian - Rego Park NY, US

Assignee:

Unimold Cast Ltd. - New York NY

International Classification:

B22D 9/04

US Classification:

164 35, 164 45, 164516

Abstract:

There is provided a method or process for fabricating a hollow jewelry article which is hollowed or bored out. In accordance with this process, a metal ring model is prepared comprising a solid shank and a metal plate supported along the internal perimeter of the shank by means of a series of spokes extending from the shank. A first metal mold is produced from the metal ring model having the external shape of the jewelry article to be manufactured. From this mold, a wax model of the jewelry article is produced which is first filed down and then cast in order to form a metal model of a core insert; the core insert, like the ring model, has a plate disposed along the perimeter of the shank. This core insert is used to produce a second metal mold. This second mold may then be used repeatedly in order to form a soluble wax core insert model which is then inserted into the cavity of the first mold in order to define the hollow region of the article. A non-soluble wax is then introduced into the first mold for completely surrounding the soluble wax core insert.

US Patent:

7637123, Dec 29, 2009

Filed:

Mar 20, 2007

Appl. No.:

11/725812

Inventors:

Ervant Hashimian - Middle Village NY, US
Garabed Ayvazian - Rego Park NY, US

Assignee:

Unimold Cast Ltd. - New York NY

International Classification:

A44C 9/00

US Classification:

63 15

Abstract:

There is provided a method or process for fabricating a hollow jewelry article which is hollowed or bored out. In accordance with this process, a metal ring model is prepared comprising a solid shank and a metal plate supported along the internal perimeter of the shank by means of a series of spokes extending from the shank. A first metal mold is produced from the metal ring model having the external shape of the jewelry article to be manufactured. From this mold, a wax model of the jewelry article is produced which is first filed down and then cast in order to form a metal model of a core insert; the core insert, like the ring model, has a plate disposed along the perimeter of the shank. This core insert is used to produce a second metal mold. This second mold may then be used repeatedly in order to form a soluble wax core insert model which is then inserted into the cavity of the first mold in order to define the hollow region of the article. A non-soluble wax is then introduced into the first mold for completely surrounding the soluble wax core insert.

US Patent:

20140020214, Jan 23, 2014

Filed:

Sep 11, 2012

Appl. No.:

13/610571

Inventors:

Garabed Ayvazian - East Hampton NY, US
Barry Smith - Weston CT, US
Carl Morfino - Colts Neck NJ, US
Edward Yosevitz - Staten Island NY, US

Assignee:

Quality Casting, Inc. - Long Island City NY

International Classification:

A44B 99/00
B23P 11/00
H01F 7/02

US Classification:

24303, 29428

Abstract:

Clasps and methods of manufacturing the clasps are disclosed. The clasp comprises a male end, a female end coupleable to the male end. The female end comprises at least two pushers, the pushers each movable between a first position and a second position, and at least one magnet coupled to each pusher. The pushers are positioned such that when the pushers are each in the first position, the magnetic force between the magnets biases the pushers toward the second position.

US Patent:

6453699, Sep 24, 2002

Filed:

Jun 29, 2000

Appl. No.:

09/606644

Inventors:

Ervant Hashimian - Middle Village NY
Garabed Ayvazian - Rego Park NY

Assignee:

Unimold Cast, Ltd. - New York NY

International Classification:

A44C 1900

US Classification:

63 15, 63 3, 63 7

Abstract:

A method or process for fabricating a hollow jewelry article which is hollowed or bored out to an arcuate estent of 200Â or greater. In accordance with this process, a metal ring model is prepared comprising a solid shank and a metal plate supported along the internal perimeter of the shank and arcuately extending at least 200Â therealong. A first metal mold is produced from the metal ring model having the external shape of the jewelry article to be manufactured. From this mold, a wax model of the jewelry article is produced which is first filed down and then cast in order to form a metal model of a core insert; the core insert, like the ring model, has a plate disposed along the perimeter of the shank. This core insert is used to produce a second metal mold. This second mold may then be used repeatedly in order to form a soluble wax core insert model which is then inserted into the cavity of the first mold in order to define the hollow region of the article.