Patent ID: 9278442
Filing Date: 2016-03-08
CPC Classification: B25D,Y10T

Claim Text:
1. A hydraulic accumulator, comprising: an accumulator housing defining a gas reservoir and a liquid volume; a flexible membrane positioned within the accumulator housing and separating the gas reservoir and the liquid volume; and a flow control screen having a screen thickness and including an exterior face opposing a membrane engagement face, wherein a first set of slots is formed in the exterior face and has a first slot depth that is less than the screen thickness, the first set of slots is elongated and radially oriented from a center portion of the flow control screen, wherein a second set of slots is formed in the membrane engagement face and has a second slot depth that is less than the screen thickness, the second set of slots includes continuous, concentric circular slots, and wherein the first set of slots and the second set of slots intersect to fluidly connect an exterior of the accumulator housing with the liquid volume.