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:
Jan. 17, 1995
Filed:
Jun. 21, 1993
Applicant:
Inventors:
John S Bright, Newport News, VA (US);
Gyula A Huszar, Newport News, VA (US);
Dean L Spiers, Hampton, VA (US);
Assignee:
Siemens Automotive L.P., Auburn Hills, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2395332 ; 219 93 ;
Abstract
Projection welding is used to join a needle guide member and a valve seat member together preparatory to their assembly into the nozzle of a fuel injector. Various embodiments are disclosed, including various ways for creating the projections. In the preferred embodiment the projections on the end face of the guide member are made my forming a small holes in the frustoconical surface of the guide plate. As the tool is used to form the small holes in the guide plate, the material of the guide plate is displaced creating small projections from the frustoconial guide surface.