The Nupro Company

Frank M Cunningham

Earl D Shufflebarger

Edward E Kish, Jr

Donald J Murauskas

Bernard J Gallagher

John R Boylan

The specification and drawings disclose a fluid filter device which includes a central body section clamped between a pair of end fittings by a plurality of longitudinally extending tie bolts. The tie bolt arrangement is such that only one bolt must be removed to permit the central body section to be swung out of position between the end fittings for filter cleaning, changing, or the like. The central body section includes a cylindrical through passage which extends longitudinally of the body perpendicularly to end faces which mate with the end fittings. A filter cartridge is received in the through passage and includes a cylindrical sleeve which is sized so as to be closely and slidably received in the passage. Filter elements are mounted within the sleeve. Additionally, seal rings are carried about the opposite ends of the sleeve to provide a fluid seal between the end fittings and the central body, as well as to prevent leakage between the outside of the sleeve and the wall of the passageway.

Fluid filter

A fluid strainer element capable of withstanding high differential pressures when used and which facilitates straining of fluid flowing through the continuous side wall and one end wall of the element. The strainer is generally cup-shaped and includes an inner cup-shaped support structure having staggered perforations extending through the surfaces thereof. An outer cup-shaped strainer structure constructed of wire mesh is closely received over the support structure with the open ends of the two structures being substantially coextensive with each other. An annular binding ring is closely received over the structure open ends and is rigidly affixed thereto. The mesh size of the straining structure may be varied as is desired and/or necessary for any use and normal fluid flow through the strainer is from outside to inside the element.

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Solon, OH, United States of America

Frank M Cunningham