Robert G Vanotteren

6506998, Jan 14, 2003

Jul 3, 2001

09/898828

Robert G. VanOtteren - Bay City MI
Edward P. Patrick - Murrysville PA
Donald J. Spinella - Greensburg PA

Newcor, Inc. - Bloomfield Hills MI
Alcoa Inc. - Pittsburgh PA

B23K 1114

219118, 219 93

A projection coined onto a metal sheet, preferably an aluminum sheet, for projection welding the sheet to an adjacent metal sheet. The projection has a thickness greater than the thickness of the sheet on which it is formed. The wall of the projection surrounds a first recess and a second recess is formed in a side of the sheet opposite the projection from which the metal cold flows to form the projection. A welding gun assembly having an improved low interia, fast response to the collapse of the projection welding the sheet having the projection to the adjacent sheet.

6791056, Sep 14, 2004

Nov 27, 2002

10/306015

Robert G. VanOtteren - Bay City MI
Edward P. Patrick - Murrysville PA
Donald J. Spinella - Greensburg PA

Newcor, Inc. - Bloomfield Hills MI
Alcoa Inc. - Pittsburgh PA

B23K 928

219 861, 219 8625

A projection coined onto a metal sheet, preferably an aluminum sheet, for projection welding the sheet to an adjacent metal sheet. The projection has a thickness greater than the thickness of the sheet on which it is formed. The wall of the projection surrounds a first recess and a second recess is formed in a side of the sheet opposite the projection from which the metal cold flows to form the projection. A welding gun assembly having an improved low interia, fast response to the collapse of the projection welding the sheet having the projection to the adjacent sheet.

6323453, Nov 27, 2001

Mar 28, 2000

9/509615

Robert G. VanOtteren - Bay City MI

Newcor, Inc. - Bloomfield Hills MI

B23K 1106

219 81

A seam welding apparatus having an improved bearing support arrangement for the transversely movable upper weld wheel. This upper weld wheel is nonrotatably secured adjacent one end of an elongate electrically conductive shaft, which shaft adjacent its other end is supported within a conventional electrically conductive bearing assembly which rotatably supports the shaft and transmits electrical energy thereto from an external source such as a transformer. The nonrotatable housing associated with the bearing assembly is pivotally supported relative to the machine frame by a pivot which extends adjacent the housing in perpendicular relation to the shaft axis, with this pivot axis being disposed remote from the weld wheel. A welding force generating assembly such as a pressure cylinder and ram are mounted on the machine frame, with the ram being movably supported and acting downwardly onto a spring unit which has an electrical insulator associated therewith. This spring unit and its electrical insulator in turn are rotatably supportingly engaged with the shaft closely axially adjacent the weld wheel.

62814664, Aug 28, 2001

Jun 28, 1999

9/340845

Robert G. VanOtteren - Bay City MI
Edward P. Patrick - Murrysville PA
Donald J. Spinella - Greensburg PA

Newcor, Inc. - Bloomfield Hills MI
Aluminum Company of America - Pittsburgh PA

B23K 1114
B23K 1120
B23K 1116

219118

A projection coined onto a metal sheet, preferably an aluminum sheet, for projection welding the sheet to an adjacent metal sheet. The projection has a thickness greater than the thickness of the sheet on which it is formed. The wall of the projection surrounds a first recess and a second recess is formed in a side of the sheet opposite the projection from which the metal cold flows to form the projection. A welding gun assembly having an improved low interia, fast response to the collapse of the projection welding the sheet having the projection to the adjacent sheet.