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. 19, 1989
Filed:
Dec. 27, 1988
John M Pieprzak, Dearborn, MI (US);
Pierre A Willermet, Livonia, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An engine tappet is constructed with flat, essentially parallel or conformal bearing surfaces internal of its case for the introduction during no-load operation of a lubricant under pressure to the space between the surfaces, the pressure level of the lubricant being greater than the force necessary to remove lash in the system, to thereby create an oil film between the surfaces that is partially squeezed out during load operations of the cam event to in effect float one part upon the other to reduce rotational friction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile