Positive displacement type liquid-delivery apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 16, 2002
Issued Date -
N/A
app pub date -
Jul 28, 2000
filing date -
Feb 24, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A positive displacement liquid-delivery apparatus includes a positive displacement pump 110 and a differential pressure control unit 142. The positive displacement pump 110 includes a liquid-delivery chamber 128 having a watertight housing 122 with one part formed of a flexible diaphragm 124, and a diaphragm driver 136 linked to the diaphragm 124 for deforming the same to discharge fluid from the liquid-delivery chamber 128. The differential pressure control unit 142 uniformly controls the differential pressure inside and outside the diaphragm 124 during the pumping process.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully