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:
Oct. 07, 1997
Filed:
Oct. 15, 1996
Flavio Rigamonti, Giorgio Canavese, IT;
Eaton Corporation, Cleveland, OH (US);
Abstract
A direct-acting hydraulic tappet having a cup-like tappet body which includes a cylindrical projection extending inwardly from the base of the body and in which the hydraulic element of the tappet is received. A resiliently deformable diaphragm is received in the space formed between the peripheral wall of the tappet body and the cylindrical projection. The diaphragm defines two concentric outer and inner annular wells for allow oil entering the tappet body from an external source to overflow from the outer well into the inner well to provide a supply of deaerated oil to the low pressure inner chamber of the tappet. The diaphragm is fixed to the tappet body by being received in slots formed in the body and in the cylindrical projection, or by means of a press fit therein.