Metal working – Method of mechanical manufacture – Structural member making
Reexamination Certificate
2011-05-31
2011-05-31
Bryant, David P (Department: 3726)
Metal working
Method of mechanical manufacture
Structural member making
C029S893340, C029SDIG018, C072S370130, C072S370190
Reexamination Certificate
active
07950153
ABSTRACT:
A method of manufacturing a steering rack for a vehicle rack and pinion steering system. The rack comprises gear teeth and a shank that has a constant outside diameter and constant wall thickness over the majority of its length. The method comprises performing a forging operation on a tubular member with an elongate member positioned in the bore of a thickened region of the tubular member. The forging operation forms the gear teeth on the thickened region, and the elongate member is retained within the tubular member. The tubular member is made by performing a forming operation on a length of tube stock such that the outside diameter of the thickened region is smaller than the outside diameter of the shank, and the wall thickness of the thickened region is larger than the wall thickness of the shank.
REFERENCES:
patent: 4571982 (1986-02-01), Bishop et al.
patent: 4722216 (1988-02-01), Fencl
patent: 5231916 (1993-08-01), Weiler
patent: 5628222 (1997-05-01), Yasuda et al.
patent: 5862701 (1999-01-01), Bishop et al.
patent: 6038771 (2000-03-01), Takehara et al.
patent: 6289710 (2001-09-01), Ozeki
patent: 7168282 (2007-01-01), McLean
patent: 7168284 (2007-01-01), Shiokawa
patent: 7225541 (2007-06-01), Kubota
patent: 40 06 038 (1991-08-01), None
patent: 43 31 792 (1995-03-01), None
patent: 199 01 425 (2000-07-01), None
patent: 0 445 470 (1994-07-01), None
patent: 0 572 105 (1997-08-01), None
patent: 57-195960 (1982-12-01), None
patent: 62-99261 (1987-05-01), None
patent: 2000-16310 (2000-01-01), None
patent: 2003-311366 (2003-11-01), None
patent: WO-2005/053875 (2005-06-01), None
Afzali Sarang
Birch & Stewart Kolasch & Birch, LLP
Bishop Innovation Limited
Bryant David P
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