Foam generating sprayer apparatus

Details Foam generating sprayer apparatus Foam generating sprayer apparatus

1976-03-23

1977-03-22

Ward, Jr., Robert S.

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

Including whirler device to induce fluid rotation

239311, 2394285, 2394345, 239485, B05B 130, B05B 134, B05B 704

Patent

active

040132285

ABSTRACT:
A foam generating unit is adjustably mounted for longitudinal movement on a liquid sprayer having an orifice which provides a diverging liquid stream directed into the inlet of the foam generating unit. The foam generating unit includes a foam-generating section most advantageously having a pressure-reducing inlet passageway section including a preferably sharply outwardly tapering portion leading to a throat portion. Air inlet ports are provided communicating with the pressure-reducing passageway, through which ports air is drawn by the reduced pressure caused by the pressure-reducing passageway. The desired foaming action is achieved by adjusting the points of the pressure-reducing passageway section struck by the stream by moving the foam generating unit relative to the orifice.

REFERENCES:
patent: 1563123 (1925-11-01), Wade
patent: 1605177 (1926-11-01), Diener
patent: 2760821 (1956-08-01), Kenney
patent: 2764452 (1956-09-01), Anderson et al.
patent: 3625436 (1971-12-01), Wirths
patent: 3797749 (1974-03-01), Tada

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