The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2009
Filed:
Jun. 15, 2006
Applicants:
James Paul Fochtman, Williamsburg, VA (US);
Jack David Oliver, Hayes, VA (US);
Inventors:
James Paul Fochtman, Williamsburg, VA (US);
Jack David Oliver, Hayes, VA (US);
Assignee:
Continental Automotive Systems US, Inc., Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 21/00 (2006.01); B21D 39/00 (2006.01); B21K 1/22 (2006.01); B23P 17/00 (2006.01); B23K 26/00 (2006.01); F02M 61/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method for reducing 'blow-out' of annular welds for attaching components in a fuel injector, a relief region is formed on radially-facing surfaces of the components. The relief region is adjacent to a press-fit region. The components are then pressed together, and a weld is made in the relief region. A sealed gap is thereby formed in the relief region between the weld and the press-fit region. The sealed gap provides for the expansion of trapped gases that could otherwise 'blow out' the liquid weld bead.