Fluid handling – With casing – support – protector or static constructional... – Static constructional installations
Patent
1997-09-04
1999-02-16
Chambers, A. Michael
Fluid handling
With casing, support, protector or static constructional...
Static constructional installations
137371, 137382, 137327, F16K 3700
Patent
active
058710302
ABSTRACT:
A curb box locking device has a core unit with a head at its upper end and a foot at its lower end. A sleeve surrounds and is shiftable axially in relation to the core unit. Claw members are carried on the core unit for pivotal movement through side openings in the sleeve. The locking device is externally configured and dimensioned to be lowered into the curb box to a position at which the foot of the core unit is at rest on a valve or the like at the bottom of the curb box. The sleeve is engageable with the claw members during upward displacement of the sleeve relative to the core unit to pivotally urge the claw members radially outwardly into extended positions engaging the interior of the curb box to thereby resist upward removal of the locking device. The locking device is upwardly removable from the curb box by employing a tool specially designed to pull upwardly on the core unit.
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Chambers A. Michael
Inner-Tite Corp.
LandOfFree
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