Chapin Manufacturing, Inc.

R. E. Chapin Manufacturing Works, Inc.

Clark F Spriegel

A substantially clog-resistant self-supporting fluid filterfor attachment to an open end of flow tubeFiltercomprises a substantially cylindrically shaped grid or fluid intake portionhaving first endand a second endFluid intake portioncomprises a plurality of substantially parallel longitudinal ribsaffixed to a plurality of substantially parallel circular ribsat an angle to longitudinal ribsthereby allowing a fluid to flow therebetween while preventing passage of debris intermixed with the fluid. Longitudinal ribsand circular ribsare substantially rigid such that they cooperate to be structurally self-supporting. End coveris affixed to first end Filterfurther comprises tube receiving portionwhich is affixed to or integral with second endand is configured such that flow tubeengages tube receiving portionin a secure, slidable manner.

Fluid filter

A hose coupling apparatus for removably coupling a hose to a discharge opening of a spray unit includes an elongate hose retainer having a plug end and a stem end. The hose retainer defines a longitudinal fluid passageway extending therethrough from the plug end to the stem end. The plug end is configured for being received within the discharge opening of the spray unit. The stem end is configured for being coupled to the hose. At least one locking tab is disposed intermediate the plug end and the stem end. Each of the at least one locking tab is configured for being disposed within a corresponding slot defined by a neck which surrounds the discharge opening of the spray unit, thereby precluding rotation of the hose retainer relative to the neck. A hose nut defines a hose bore therethrough. The hose bore is configured for receiving the hose such that the hose nut is slidable over the hose. The hose nut is configured for coupling the hose retainer to the neck and for retaining each of the at least one locking tab in disposition within each of the at least one slot.

Hose coupling apparatus for sprayer unit

A bulkhead fitting for a tank sprayer includes a tank boss and an intermediate hose-receiving adapter, each having respectively a male or female longitudinally-oriented latching portion such that when the adapter is inserted into the boss, the latching portions come together to prevent relative rotation between the boss and the adapter. The female latching portion comprises a longitudinal groove in the outer surface of either the boss or the adaptor. The male latching portion comprises a longitudinal tab extending from an outer portion of either the boss or adapter and is matable with the corresponding female latching portion. In a currently preferred embodiment, two grooves are disposed 180&deg; apart in the outer end of the boss and two tabs are disposed 180&deg; apart on a flange of the barbed adapter. The invention is useful in preventing inadvertent unscrewing of a bulkhead fitting by torsional forces on the hose.

Bulkhead fitting for a tank sprayer having a non-rotatable hose adapter

Tank for a hand operated sprayer

Shoulder, neck and cap of a sprayer

A fluid coupling having a first part removably threadably connected to a second part, wherein one of the parts has a latch arm resiliently deformable by engagement with the projections incident to threading and unthreading of the first part on the second part. The projections and the latch arm have cooperating first cam surfaces and cooperating second cam surfaces arranged to engage one another and cooperating to require the application of relatively small and large forces to affect threading and unthreading of the first part relative to the second part.

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Attica, NY, United States of America

Clark F Spriegel