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:
Mar. 25, 1986
Filed:
Mar. 28, 1984
Charles A Frank, Farmington Hills, MI (US);
David J Compton, Troy, MI (US);
Automotive Products plc, Warwickshire, GB;
Abstract
A hydraulic cylinder, such as more particularly the master cylinder of motor vehicle hydraulic brake system or of a motor vehicle clutch hydraulic control system, provided with a relatively thin plated coating, autocatalytically or electrolessly deposited, of nickel phosphorous matrix containing sub-micron particles of a polyfluorocarbon resin, preferably polyfluoroethylene. The plated coating provides a good wearing surface having self-lubricating properties provided by the exposed polyfluorocarbon resin particles smearing the surface of the coating, and reducing considerably squeaking noise during operation of the master cylinder. Alternatively, or additionally, the surface of the pistons may be provided with a plated coating.