Device and a method for the generation of pressure pulses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 17, 2006
Grant Date -
Dec 1, 2005
app pub date -
May 23, 2003
filing date -
May 30, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for the generation of pressure pulses, includes a cylinder (3), a piston that is displaceably arranged in the cylinder (3), a pressure fluid circuit with an inlet (6) into and an outlet (7) out of the cylinder (3) on one side of the piston (4), a shaft (18) connected to the piston (4), and a liquid-filled chamber (17). The shaft (18) is arranged to be displaced through said chamber (17) in connection to a displacement of the piston (4) in the cylinder (3). The device includes at least one valve member (22, 24, 29, 32) for an occasional interruption of a flow of liquid out of the chamber (17).
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