Bearings – Rotary bearing – Plain bearing
Reexamination Certificate
2008-01-22
2008-01-22
Hannon, Thomas R. (Department: 3682)
Bearings
Rotary bearing
Plain bearing
Reexamination Certificate
active
07320548
ABSTRACT:
A bearing shell with a spherical bearing surface for a ball and socket joint preferably for use in chassis suspensions or steering mechanisms of motor vehicles, which has essentially a joint housing and a bearing journal, which comprises a spherical surface and a pivot part and which is mounted with the spherical surface rotatably and deflectably in the spherical bearing surface of the bearing shell fixed in the joint housing, is presented, in which a filament fabric is embedded according to the present invention in the thermoplastic of the bearing shell (5, 11, 12, 13, 14, 15) at least in a partial area. In addition, the present invention pertains to a process for manufacturing an above-described bearing shell from thermoplastic, in which a bearing shell blank (1, 9) provided with an essentially circular outer contour is fashioned out of a sheet-shaped thermoplastic semifinished product, in which a filament fabric had been embedded, and in which the final shape of the bearing shell (5, 11, 12, 13, 14, 15) with spherical bearing surface is brought about in a subsequent processing operation by heating the thermoplastic material above its melting point and subsequent mechanical deformation of the bearing shell blank (1, 9).
REFERENCES:
patent: 3597025 (1971-08-01), Ringel
patent: 4137618 (1979-02-01), Krauss
patent: 4317338 (1982-03-01), Jordan
patent: 5219231 (1993-06-01), Sheedy
patent: 30 38 248 (1982-04-01), None
patent: 41 08 219 (1992-09-01), None
patent: 42 20 327 (1993-06-01), None
Hannon Thomas R.
McGlew and Tuttle , P.C.
ZF Lemförder Metallwaren AG
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