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. 17, 1987
Filed:
Nov. 25, 1985
Applicant:
Inventors:
Paolo Mirone, Turin, IT;
Franco Colanzi, Turin, IT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9058 ; 123 9055 ;
Abstract
The hydraulic tappet comprises a cup-shaped body having a cylindrical side wall and a flat bottom wall, a piston element moving axially inside a cavity, formed in the said bottom wall and defining a first pressure chamber, an annular element of deformable material located on the outside of the said piston element and inside the said cylindrical wall, ducts for hydraulically connecting the said second chamber to the said first chamber and on which is fitted an on-off member, and a guide element moving axially inside the said cylindrical wall on the said cup-shaped body and having a side surface and a bottom wall.