Telescopic bell piston for pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 7, 2017
Grant Date -
Dec 19, 2013
app pub date -
Jun 17, 2013
filing date -
Jun 19, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A piston pump dispenser in which a volume in a compartment defined inside a piston chamber-forming member and between axially spaced discs on a piston varies with movement of the piston in a cycle of operation due to the piston having a tubular portion between the discs which varies in axial length. The tubular portion has a circumferentially extending wall in the shape of a solid of revolution about an axis of the piston with opening through the wall for fluid flow. The tubular portion acts as a spring to axially bias the axially spaced disc apart.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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