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Class Information
Number: 29/8
Name: Metal working > Finger-ring forming or sizing
Description: Process or apparatus for forming a finger ring by die cutting a flat ring from a disk and subsequently swaging or die shaping it into the desired form or for stretching or contacting a ring by use of a die.










Patents under this class:

Patent Number Title Of Patent Date Issued
8677624 Ring with outer markings/segments for setting gemstones Mar. 25, 2014
8584329 Jewelry setting and process for setting precious stones Nov. 19, 2013
8296913 Thermally switched ferromagnetic latching support system Oct. 30, 2012
8028413 Method of making yttria-stabilized zirconia ring Oct. 4, 2011
7533464 Ring assembly method May. 19, 2009
7520058 Method for enlarging a ring Apr. 21, 2009
7412757 Dove-tail sizing stock with solder pockets Aug. 19, 2008
6993842 Methods and jewelry articles comprising sintered tungsten carbide Feb. 7, 2006
6990736 Methods for preparing jewelry articles comprising sintered tungsten carbide Jan. 31, 2006
6889596 Compressor cooler and its assembly procedure May. 10, 2005
6345423 Locking ring anvil Feb. 12, 2002
6044549 Assembly of electronic components onto substrates Apr. 4, 2000
5590450 Method of sizing objects Jan. 7, 1997
5511391 Ornamental gem and method of manufacturing the same Apr. 30, 1996
5172545 Apparatus for attaching a pre-atomization bowl to a gas turbine engine combustion chamber Dec. 22, 1992
4964222 Ring sizer Oct. 23, 1990
4785647 Method and apparatus for sizing rings Nov. 22, 1988
4384301 High performance submicron metal-oxide-semiconductor field effect transistor device structure May. 17, 1983
4317264 Means and method for making jewelry Mar. 2, 1982
3955455 Ring cutting device May. 11, 1976











 
 
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