Adjustment safeguard for an adjusting screw

Details Adjustment safeguard for an adjusting screw Adjustment safeguard for an adjusting screw

1993-03-11

1993-10-12

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Valved

261DIG38, 137382, F02M 308

Patent

active

052522610

ABSTRACT:
The invention is directed to an adjustment safeguard for an adjusting screw rotatably held in a housing. The adjusting screw has a head which projects outside of the housing and a cap is mounted on the head of the adjusting screw so as to be accessible to an operator for imparting a rotational movement thereto. The cap has an appendage formed thereon and stops are provided which coact with the appendage to delimit the rotational range through which the adjusting screw can be rotated. A sleeve is disposed in surrounding relationship to the cap and is connected thereto. The cap is disposed almost entirely within the sleeve so that an operator cannot reach the cap for levering the latter off the adjusting screw without causing permanent visible damage to the safeguard. Accordingly, an effective tampering with the adjusting screw for obtaining a setting outside of the permitted adjusting range is effectively prevented since such a tampering will leave permanent visible damage.

REFERENCES:
patent: 3618906 (1971-11-01), Charron
patent: 4246929 (1981-01-01), Wakeman
patent: 4271095 (1981-06-01), Maeda
patent: 4378321 (1983-03-01), Miller
patent: 5094265 (1992-03-01), Jackson

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