| |
 |
|
Class Information
Number: 59/20
Name: Chain, staple, and horseshoe making > Chain making > Combined machines > Coiling, cutting, assembling
Description: Machines for forming chains from a continuous rod or wire by coiling such rod or wire into a helix, cutting off sections to form links, and assembling and uniting the links to form a completed chain.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7143571 |
Method of forming chain links |
Dec. 5, 2006 |
| 6993896 |
Method of forming chain links |
Feb. 7, 2006 |
| 6105357 |
Method and apparatus for making hollow seamless links for use in jewelry |
Aug. 22, 2000 |
| 5152133 |
Method and machine for the automatic formation of ornamental chains with eight-shaped links |
Oct. 6, 1992 |
| 5092120 |
Method and machine for the formation of ornamental chains with cylindrical helix shaped links |
Mar. 3, 1992 |
| 4972670 |
Process for the automatic production of ornamental link chains |
Nov. 27, 1990 |
| 4934135 |
Fine jewelry rope chain |
Jun. 19, 1990 |
| 4932203 |
Machine for the production of "bow-type" ornamental chains |
Jun. 12, 1990 |
| 4903475 |
Apparatus for the production of ornamental chains of the type known as "peacock eye" |
Feb. 27, 1990 |
| 4872305 |
Process for the automatic production of ornamental link chains and relative apparatus |
Oct. 10, 1989 |
| 4679391 |
Method of manufacturing jewelry chains from decorated helicoid members and/or links |
Jul. 14, 1987 |
| 4651517 |
Jewelry rope chain |
Mar. 24, 1987 |
| 4493183 |
Machine for the manufacture of chains, in particular of the type known as rope chain in the goldsmithery industry |
Jan. 15, 1985 |
| 4417437 |
Watchband formed of tubular metal rods and method of manufacturing same |
Nov. 29, 1983 |
| 4104870 |
Link-making machine and method |
Aug. 8, 1978 |
| 4047378 |
Machine for forming a Bismarck chain |
Sep. 13, 1977 |
|
|
|
