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:
Dec. 07, 2004
Filed:
Jul. 01, 2002
Richard D. Peters, Gahanna, OH (US);
David Rust Busick, Lewis Center, OH (US);
Theodore Robert Adams, Dublin, OH (US);
Ventaira Pharmaceuticals, Inc., Columbus, OH (US);
Abstract
A micropump comprising a pump body including a fluid inlet channel, a fluid outlet channel and pumping reservoir, the fluid inlet channel and the fluid outlet channel communicating with the pumping reservoir, a diaphragm covering the pumping reservoir, a piezoelectric strip actuator attached to the diaphragm such that by applying a voltage to the actuator, the diaphragm can be raised or lowered relative to the pumping chamber, a valve on the inlet channel and the outlet channel, the valve opening and closing the inlet and the outlet channel in response to the raising and lowering of the diaphragm.