Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1991-02-22
1992-07-21
Cuda, Irene
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
29888, 164 97, 164137, B22D 3304
Patent
active
051311445
ABSTRACT:
A process for the manufacture of a master cylinder for hydraulic brake units of automotive vehicles. The starting material is a pasty material which is between solid and liquid. In the course of the casting procedure, thin material wall thicknesses are created in the regions of intended openings of the master cylinder, such as the breather bore (14) and the intake bore (5). The floating membrane (12) which forms during the casting process is removed by mechanical machining to open the duct which functions as the intake bore. The breather bore (14) which functions as the compensation bore is formed by a stamping operation.
REFERENCES:
patent: 4458743 (1984-07-01), Logvinov et al.
patent: 4757857 (1988-07-01), Henkel
patent: 4899799 (1990-02-01), Drazy
patent: 4919189 (1990-04-01), Sato et al.
Websters Ninth New Collegiate Dictionary, definitions of the words "Film", Floating and Membrane, 1984, pp. 463; 473-474, and 740.
Bergelin Klaus
Preuss Heinz-Juergen
Saalbach Kurt
Alfred Teves GmbH
Cuda Irene
Lewis J. Gordon
Seitter Robert P.
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