Method for production of a throttle valve in a continuous...

Details Method for production of a throttle valve in a continuous... Method for production of a throttle valve in a continuous...

2008-09-02

2008-09-02

Bryant, David P. (Department: 3726)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S888450, C029S888400, C029S890127, C029S890128, C264S279000

Reexamination Certificate

active

11100586

ABSTRACT:
A peripheral, annular groove is incorporated into a throttle valve connector in one step. A first die and a second die are then inserted into the throttle valve connector and a first plastic material is introduced into a first cylindrical cavity formed thereby in a molten state and hardened, resulting in a plastic insert. The first die and the second die are subsequently removed from the throttle valve connector and a third die and a fourth die are inserted into the throttle valve connector. A second cavity is formed therebetween and filled with a second plastic material, whereby a throttle valve is formed and is fixed during the cooling process by shrinkage on the throttle valve shaft.

REFERENCES:
patent: 6837261 (2005-01-01), Rentschler et al.
patent: 43 43 091 (1995-06-01), None
patent: 195 12 729 (1996-10-01), None
patent: 199 18 777 (2000-10-01), None
patent: 101 04 747 (2002-08-01), None
patent: 2 687 601 (1993-08-01), None
patent: 11294203 (1999-01-01), None
patent: 11229909 (1999-08-01), None
patent: 2001263098 (2001-09-01), None
patent: WO 97/04259 (1997-02-01), None
Derwent Abstract—DE-195 12 729 A1;Oct. 10, 1996; VDO Adolf Schindling AG, D-60326 Frankfurt (Germany).
Derwent Abstract—DE-101 04 747 A1; Aug. 8, 2002; Siemens AG, D-80333 München (Germany).
Derwent Abstract—DE-43 43 091 A1; Jun. 22, 1995; Robert Bosch GmbH, D-70469 Stuttgart (Germany).
Derwent Abstract—DE-199 18 777 A1; Oct. 26, 2000; Filterwerk Mann + Hummel GmbH, D-71638 Ludwigsburg (Germany).
Abstract—FR-2 687 601 A1; Aug. 27, 1993; Compagnie Plastic Omnium CIE (France).

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