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
Wrench
Global codebook for coordinated multi-point processing
Wafer-level chip scale package
Produce container and lid assembly
Semiconductor device including insulating layer of cubic system or tetragonal system
Selective facsimile denial
Printed circuit board including electromagnetic bandgap structure
  Randomly Featured Patents
Low voltage linear output buffer operational amplifier
TRAF Inhibitors
Method and system for spatial accessing of time-based information
Mattress cushion with multiple zones
Method and apparatus for processing video and graphics data utilizing intensity scaling
Medical ventilator tube and manifold assembly
Single die stitch bonding
Hitch initialization control system
Installation for making needled fiber preforms for use in manufacturing parts made of composite material
Quick disconnect with locking feature for pick and place devices