Dual reciprocating bellows pump, with a pair of interlocking shafts passing through a common pump head and dual pump chambers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 9, 2004
Grant Date -
Feb 26, 2004
app pub date -
Dec 30, 2002
filing date -
Aug 23, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention is to provide a dual reciprocating bellows pump which can facilitate size reduction design of the whole pump, permit pump manufacture at low cost, and permit reducing the dead spaces in pumping chambers to provide improved self-suction performance. Valve cases of suction side and discharge side valve units are disposed one below the other along a longitudinal axis passing through the center of the cross-section of the bellows such that they project into the associated pumping chambers, and a pair of interlock shafts are disposed at positions spaced apart to the left and right from the center in the transversal direction. With this construction, it is possible to reduce the dead spaces in the pumping chambers, reduce the longitudinal and transversal dimensions of the pump and facilitate size reduction design of the pump.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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