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:
Nov. 30, 2010
Filed:
Nov. 16, 2004
Applicant:
Angelo D'arrigo, Rosignano Solvay, IT;
Inventor:
Angelo D'Arrigo, Rosignano Solvay, IT;
Assignee:
Continental Automotive Italy S.p.A., Fauglia Pisa, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 37/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An actuator unit has a tube spring (), a piezoelectric actuator (), that is inserted into the tube spring (), a first cap (), that is connected to the tube spring () at a first free end of the tube spring () and which is adjoined by the piezoelectric actuator (), a tube-shaped body, that is connected to the tube spring () by joining and is arranged in the area of a second free end () of the tube spring (), and a device for pretensioning, that is supported by the tube-shaped body () and pretensions the piezoelectric actuator (). The actuator unit is simple and cheap to manufacture.