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. 18, 2025
Filed:
Nov. 10, 2017
Applicant:
Pi Ceramic Gmbh, Lederhose, DE;
Inventors:
Assignee:
PI CERAMIC GMBH, Lederhose, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 30/88 (2023.01); H10N 30/20 (2023.01);
U.S. Cl.
CPC ...
H10N 30/883 (2023.02); H10N 30/2047 (2023.02);
Abstract
The disclosure relates to a piezoelectric drive, such as for permanently protected use in a moist environment, which includes a housing having a chamber, which chamber is hermetically sealed by at least one elastic membrane, and includes a piezoelectric drive unit in the hermetically sealed chamber for driving a drive element. The piezoelectric drive unit can include at least one piezoelectric bending actuator, which produces a bending deflection transversely to the elastic membrane when electrically activated. For example, two bending actuators can be arranged in series or parallel.