US 7,882,886 C1 (1,542nd)
Coring system and method for manufacturing a one-piece die cast electrical connector body
Thomas J. Gretz, Clarks Summit, PA (US)
Filed by Thomas J. Gretz, Clarks Summit, PA (US)
Assigned to ARLINGTON INDUSTRIES, INC., Scranton, PA (US)
Reexamination Request No. 95/001,830, Nov. 18, 2011.
Reexamination Certificate for Patent 7,882,886, issued Feb. 8, 2011, Appl. No. 12/080,482, Apr. 3, 2008.
Inter Partes Reexamination Certificate issued on Aug. 6, 2018.
Int. Cl. B22D 33/04 (2006.01); H02G 3/18 (2006.01); C22C 18/04 (2006.01); B22D 17/24 (2006.01); B29C 45/26 (2006.01); B22D 17/22 (2006.01); B29C 33/48 (2006.01)
CPC C22C 18/04 (2013.01) [B22D 17/22 (2013.01); B22D 17/24 (2013.01); B29C 33/485 (2013.01); B29C 45/2614 (2013.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
Claims 1 and 8 are determined to be patentable as amended.
Claims 2-7 and 9-13, dependent on an amended claim, are determined to be patentable.
1. A coring system for producing a [ die-cast or injection molded ] flash free one-piece connector body for securing electrical cables to a panel comprising:
a first core including a base portion with a tubular nose portion [ integral with and ] extending therefrom, said nose portion including an end thereon;
two grooves on opposing sides of said tubular nose portion of said first core, said grooves forming a narrow end portion, each of said grooves extending from said end toward said base portion and terminating in a shoulder;
a second core including a [ common ] base portion and two parallel and generally tubular [ cylindrical ] fingers extending from said base portion to an end;
an open channel between said fingers; and
said first core and said second core engaged together in such a manner that said narrow end portion of said first core is fully extended into said channel on said second core and said end of said fingers of said second core engage said shoulders on said first core,
whereby said engaged cores are capable of being inserted in the cavity of a mold that is capable of being closed and having molten metal or plastic admitted therein into said cavity thereby producing said flash free one-piece connector body.
8. A method of producing a die cast flash free one-piece connector body for securing electrical cables to a panel including the steps of:
providing a first core including a base portion, a tubular nose portion [ integral with and ] extending from said base portion, an end on said nose portion, a narrow end portion formed by two grooves on opposing sides of said tubular nose portion, and a shoulder at the end of each of said grooves;
providing a second core including a [ common ] base portion, two parallel and generally tubular fingers extending from said base portion to an end, and an open channel between said fingers;
joining first core and said second core into joined cores by extending said narrow end portion of said first core into said channel on said second core until said end of said fingers of said second core engage said shoulders on said first core;
providing a mold including an elongated mold cavity having opposing ends therein [ a left hand die and a right hand die forming an elongated mold cavity having opposing ends therein] ;
placing said joined cores into said elongated mold cavity in such a manner that said joined cores are longitudinally aligned in said cavity and said base portions are at said opposing ends of said elongated cavity [ and said left and right hand dies are oriented perpendicular to said cores] ;
closing said mold [ left hand die and said right hand die upon said joined cores] ; and
admitting molding material into said cavity of said mold to form said one-piece connector body.