Safety guard for an airless spray nozzle

Details Safety guard for an airless spray nozzle Safety guard for an airless spray nozzle

1978-03-17

1980-01-01

Marbert, James B.

Fluid sprinkling, spraying, and diffusing

With solid means as guard or protector

Bumper or guard protects distributor

239600, 239DIG22, B05B 1100

Patent

active

041812611

ABSTRACT:
An airless liquid spray nozzle is disclosed which has a safety guard extending therefrom in order to prevent the nozzle from coming into close proximity with the skin of a human operator, repairman, or the like. The conduit supplying liquid is valved by a normally closed valve responsive to air pressure or other control medium. The control medium supply communicates with a passage or path in the extending portion of the safety guard. Therefore, if the guard is not attached to the nozzle or becomes substantially broken, air leakage causes the supply of air to the valve to be reduced to such an extent that the valve stops hydraulic flow to the nozzle. In the preferred embodiment, the control medium, e.g. air, is supplied to the normally closed valve through a path or conduit which passes through the extending portion of the guard before reaching the valve.

REFERENCES:
patent: 3913844 (1975-10-01), Petrovic
patent: 3944141 (1976-03-01), Siczek

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