Blade structure for torque converter and process for...

Details Blade structure for torque converter and process for... Blade structure for torque converter and process for...

2008-07-25

2011-12-06

Bryant, David (Department: 3726)

Metal working

Method of mechanical manufacture

Impeller making

C416S043000

Reexamination Certificate

active

08069563

ABSTRACT:
A blade structure for a torque converter, produced by a process including the steps of: stamping a flat blank into a first annular plate that includes a first connecting ring portion, a second connecting ring portion, and a plurality of blades spaced from each other in a circumferential direction of the first and second connecting ring portions; bending the blades into a curved shape curved with respect to the first annular plate; bending the blades to be inclined by a predetermined angle with respect to the first and second connecting ring portions; and expanding the first annular plate outwardly in a radial direction thereof to thereby form a predetermined annular shape that has a larger radial dimension than the first annular shape and a larger circumferential distance between respective adjacent two of the blades than that in the first annular plate.

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U.S. Appl. No. 12/179,756, filed Jul. 25, 2008, Saitou.
U.S. Appl. No. 12/179,790, filed Jul. 25, 2008, Saitou.
Kazumi Saitou, U.S. PTO Office Action, U.S. Appl. No. 12/179,756, dated Aug. 3, 2011, 12 pages.
Kazumi Saitou, U.S. PTO Office Action, U.S. Appl. No. 12/179,790, dated Sep. 13, 2011, 8 pages.

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