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:
Jul. 04, 2006
Filed:
Dec. 20, 2002
Kurtis C. Kelley, Washington, IL (US);
Jerry P. Maushard, Peoria, IL (US);
L. Glenn Waterfield, Chillicothe, IL (US);
Kurtis C. Kelley, Washington, IL (US);
Jerry P. Maushard, Peoria, IL (US);
L. Glenn Waterfield, Chillicothe, IL (US);
Caterpillar, Peoria, IL (US);
Abstract
Method of manufacturing a piezoelectric actuator. The method includes a pre-cure step in which the adhesive is heated to a temperature below the melting point of the adhesive. A stack is formed having a piezoelectric layer and at least one supporting layer with the pre-cured adhesive therebetween. The stack is then cured to form a bonded laminate. The temperature at which the pre-cure occurs allows for the pre-stress in the piezoelectric layer to be modified without changing the material of the supporting layer.