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. 15, 2011
Filed:
Apr. 12, 2004
Winthrop D. Childers, San Diego, CA (US);
Douglas A. Sexton, La Jolla, CA (US);
David Tyvoll, La Jolla, CA (US);
Winthrop D. Childers, San Diego, CA (US);
Douglas A. Sexton, La Jolla, CA (US);
David Tyvoll, La Jolla, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A medication dispenser includes a thermal drop generator ejector head. Medication is maintained in a pressurized container connected to a valve under the control of control electronics and to a compliant chamber. Fluid flows from the container to the chamber and to the ejector head. In a first mode the dispenser is operable to dispense aerosolized medication. In a second mode the ejector head is purged with fluid from the container to maintain the ejector head.