Fluid sprinkling – spraying – and diffusing – Combining of separately supplied fluids – Plural inlets to one stream from another
Patent
1987-09-09
1989-01-10
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Combining of separately supplied fluids
Plural inlets to one stream from another
239433, B05B 704, B05B 714
Patent
active
047968141
ABSTRACT:
A semi-liquid cementitious pump nozzle unit for pumping cement, concrete, grout and other abrasive materials includes an air chamber assembly having an outer integral swivel housing. A tubular steel body has a threaded coupling for connection to a pump hose. An air chamber recess extends about the nozzle body with transfer openings located centrally of the recess. An outer air housing in a form of a simple tubular member is telescoped over the end walls and sealed thereto by O-ring seals. The opposite ends of the housing are smooth bearing surfaces. Annular bearing walls project radially outwardly by the nozzle and abutting the bearing surfaces of the housing. The bearing walls may be snap ring units releasably applied to the nozzle body. A nozzle reducer secured to the end of the nozzle body may have an appropriate end directly abutting the air/swivel housing to form a bearing wall. The outer air/swivel housing is secured with the body for a slip fit for ease of disassembly, cleaning and maintenance.
REFERENCES:
patent: 2965312 (1960-12-01), Hale
patent: 4411389 (1983-10-01), Harrison
Article entitled: "Shotecrete Shoots Into Concrete Construction Mainstream" from Concrete Pumping, Nov./Dec., pp. 16-17, 20-22.
Article entitled: "Dry- and wet-mix process shotecrete" from Concrete Construction, Jul., 1984, pp. 629-630.
Klemm Robert E.
Lehnhardt Gary D.
Construction Forms, Inc.
Jones Mary Beth O.
Kashnikow Andres
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