Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Pump barrel valve assembly including seal/actuator element










Image Number 14 for United States Patent #5628624.

Disclosed is an assembly for unseating a seated traveling valve ball, and pumps utilizing such an assembly. The assembly generally includes a tubular member having therein a piston with an actuator for engaging the ball. Mechanical advantage is provided either by providing a sealing area of the piston that is greater than the sealing area of the seat valve and/or by providing a engaging member suitable to strike to seated ball asymmetrically with respect to the vertical axis through the center line of the ball.








 
 
  Recently Added Patents
Method and apparatus for closed-loop control of anti-tachyarrhythmia pacing using hemodynamic sensor
Mobile device mode control based on dual mapping of availability (presence) information
Method and a channel estimating arrangement for performing channel estimation
Display apparatus
Lithographic apparatus and device manufacturing method
Cytokine biomarkers as predictive biomarkers of clinical response for Glatiramer acetate
Rack
  Randomly Featured Patents
Simulator with fore and AFT video displays
Dry low NO.sub.x hydrocarbon combustion apparatus
Method and apparatus for enhancing seam uniformity in spirally wound tubes
Remote application invocation system and method
Electronic ballast for discharge lamps
Atomic deletion of database data categories
Swivel support for a snow making machine
Integrity testable filtration unit using supported hydrophilic porous membranes
One step carboxylic acid production process
Worktable, especially office table