Metal working – Means to assemble or disassemble – Means to interrelatedly feed plural work parts from plural...
Reexamination Certificate
2007-12-11
2007-12-11
Chang, Rick K (Department: 3726)
Metal working
Means to assemble or disassemble
Means to interrelatedly feed plural work parts from plural...
C029S446000, C029S724000, C029S725000, C029S525000
Reexamination Certificate
active
10937800
ABSTRACT:
In order to improve a device for the manufacture of a shaft assembly for a hydrodynamic bearing by pressing a shaft into a fit bore in a bearing disk, comprising a first pressing tool and a further pressing tool, in such a way that enables high accuracy to be achieved when the shaft is pressed into the bearing disk, with the lowest possible cost and effort in setting up the press, it is proposed that a shaft receiving portion which receives and guides the shaft aligned exactly to a central axis is associated with the first pressing tool, that a bearing disk receiving portion which receives and guides the bearing disk with a flat surface aligned exactly perpendicular to an axis is associated with the first pressing tool, and that for the pressfitting process, the first pressing tool acts on the shaft or the bearing disk by means of a first pressing element and a second pressing tool acts on the bearing disk or the shaft by means of a second pressing element.
REFERENCES:
patent: 3673661 (1972-07-01), Secunda
patent: 3837069 (1974-09-01), Nordgren
patent: 483 299 (1969-12-01), None
patent: 282 646 (1990-09-01), None
patent: 94 07 134 (1995-10-01), None
Annotation of 3673661.
Chang Rick K
Lipsitz & McAllister LLC
Minebea Co. Ltd.
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