Invention Grant
- Patent Title: Thermal drop generator
- Patent Title (中): 热滴发电机
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Application No.: US10943581Application Date: 2004-09-17
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Publication No.: US07243648B2Publication Date: 2007-07-17
- Inventor: Xiaofeng Yang , Kenneth E. Trueba , Rod Alley , Winthrop Childers , David Tyvoll , Douglas A. Sexton
- Applicant: Xiaofeng Yang , Kenneth E. Trueba , Rod Alley , Winthrop Childers , David Tyvoll , Douglas A. Sexton
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Main IPC: A61M11/00
- IPC: A61M11/00
Abstract:
A silicon die having an orifice layer with plural openings formed therein defines a drop ejection device for use in a handheld inhaler. An underlying control layer defines fluid chambers, each carrying a heat transducer. A control system energizes selected heat transducers to heat fluid in the chambers, vaporizing the fluid, which is ejected through the orifices in small droplets.
Public/Granted literature
- US20060060191A1 THERMAL DROP GENERATOR Public/Granted day:2006-03-23
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