Trigger lock mechanism for spray guns

Details Trigger lock mechanism for spray guns Trigger lock mechanism for spray guns

1976-11-26

1978-08-08

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

041051645

ABSTRACT:
A trigger lock mechanism for hand held spray guns is characterized by an arm normally positioned to block operation of a trigger of the gun, but movable by an operator to release the trigger for operation. The trigger lock is particularly useful with so-called airless paint spray guns, and the arm is generally U-shaped and secured at its free ends to opposite sides of the trigger. The closed end of the arm extends around the rear of the gun whereat a housing normally blocks rearward movement thereof, and therethrough the trigger, when the trigger is in its unoperated position. By deliberate action an operator may move the closed end of the arm out of blocking engagement with the housing to release the trigger for movement to its operated position. Then, with return of the trigger to its unoperated position, the arm automatically returns to its position blocking operation of the trigger. The trigger lock mechanism thus prevents accidental or unintentional discharge of a paint spray from the gun.

REFERENCES:
patent: 1101464 (1914-06-01), McDonald
patent: 2690321 (1954-09-01), Luna et al.
patent: 3330527 (1967-07-01), Nurkiewicz
patent: 3380705 (1968-04-01), Enssle
patent: 3780953 (1973-12-01), Malec
patent: 3836082 (1974-09-01), Krohn

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