Abstract: An improved self-cleaning fluid filter (10) is disclosed having a housing (12) with spaced inlet and outlet ports (14, 16) formed in a common wall (18) of the housing (12). The filter (10) further includes a first sleeve (48) extending from the housing's common wall (18) in which the outlet port (16) is formed. An interior chamber within the first sleeve (48) communicates with the outlet port (16), and the first sleeve (48) has a narrowed portion (52) proximate the outlet port (16). The narrowed portion (52) of the first sleeve (48) has at least one orifice (102) formed therein. The filter (10) further includes a second sleeve (60) extending from the common wall (18) and generally concentrically encircling an axial portion of the narrowed portion (52) of the first sleeve (48). A generally annular space (72) is, thereby, defined between the first and second sleeves (48, 60).

Abstract: An improved self-cleaning fluid filter (10) having a housing (12) with spaced inlet and outlet ports (14, 16) formed in a common wall (18) of the housing (12). The filter (10) further includes a first sleeve (48) extending from the housing's common wall (18) in which the outlet port (16) is formed. An interior chamber within the first sleeve (48) communicates with the outlet port (16), and the first sleeve (48) has a narrowed portion (52) proximate the outlet port (16). The narrowed portion (52) of the first sleeve (48) has at least one orifice (102) formed therein. The filter (10) further includes a second sleeve (60) extending from the common wall (18) and generally concentrically encircling an axial portion of the narrowed portion (52) of the first sleeve (48). A generally annular space (72) is, thereby, defined between the first and second sleeves (48, 60).

Abstract: A claw for a milking machine milk receiver into which the milk descends through four inflations, a central vertical tubular assembly removing milk from low point of receiver, a vacuum delivery tube for milk attached with respect to the tubular member above the tank, a shutoff for the vacuum operating automatically upon a simple pulling action or accidental dropping of the claw, and means simultaneously shutting off the pulsator action for the inflations.

Abstract: A self-cleaning canister type filter (1). A cylindrical canister enclosure (3) has, at one end, end plate (2) with fluid inlets (4) and outlet (6) therein. A spring-loaded hollow annular piston (30) is slideably mounted on the exterior of central tubular cylinder (10) and within upper cylinder (28) for a downward movement against compression spring (32) to initially force a back-flow of filtered fluid through filter element (14), lifting contaminant particulate solids from its filtering surface (15). Inlet valve opening (64) is opened to fluid flow when piston (30) attains a compressed position. Filter element (14) is closely spaced to canister enclosure inner wall surface (9) for rapid flow of fluid over the inlet surface (15) of the filter element (14) to scour solids to sump (5) in the lower portion of the canister enclosure (3).