Paint sprayer safety interlock

Details Paint sprayer safety interlock Paint sprayer safety interlock

1978-02-13

1979-09-04

Love, John J.

Fluid sprinkling, spraying, and diffusing

Flow line or nozzle attached or carried handgrip or handle

Pistol grip type

B05B 702

Patent

active

041665791

ABSTRACT:
A high pressure, airless paint spray gun having a body with a nozzle at the forward end, a reciprocating valve operator for the nozzle and a pivotal hand lever for operating the valve operator and permitting paint to flow through the nozzle. Dual safety devices are provided for preventing the accidental depression of the hand lever and the accidental discharge of high pressure paint from the nozzle. One safety assembly consists of a pivotally mounted thumb lever on the back of the gun body that selectively receives or blocks a stem projecting rearwardly from the valve operator. The other safety assembly includes a trigger pivotally mounted on the hand lever that grabs a projection extending downwardly from the body and selectively prevents accidental pivotal movement of the hand lever.

REFERENCES:
patent: 994955 (1911-06-01), Sayre
patent: 1643969 (1927-10-01), Tittemore et al.
patent: 2934308 (1960-04-01), Kaufmann
patent: 2991945 (1961-07-01), Rosenkranz
patent: 3380705 (1968-04-01), Enssle
patent: 3396937 (1968-08-01), McDougall
patent: 3515355 (1970-06-01), Wagner
patent: 3780953 (1973-12-01), Malec

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