The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2001
Filed:
May. 06, 1999
Applicant:
Inventor:
Julie Ann McDonald, Rugby, GB;
Assignee:
Dana Corporation, Toledo, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 5/310 ;
U.S. Cl.
CPC ...
B21D 5/310 ;
Abstract
A method of forming a bearing includes adding at least one particulate material to an aqueous dispersion of polytetrafluoroethylene, mixing the constituents to allow the polytetrafluoroethylene to coagulate to form a mush, spreading the mush on to a support, and curing the mush to form a bearing lining layer on the support. The method is characterized in that the partiulate material is in the form of an aqueous colloidal dispersion including small particles and in that the small particles of the particulate material itself cause coagulation of the polytetrafluoroethylene without need for an additional separate coagulant material.