Underground access box and valve operating and protecting means

Details Underground access box and valve operating and protecting means Underground access box and valve operating and protecting means

1988-12-30

1990-03-06

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Static constructional installations

137369, 137365, 137797, F16L 500

Patent

active

049057251

ABSTRACT:
An underground access box and valve operating and protecting means are disclosed. The access box comprises a pair of valve enclosing members adapted to be fitted together to enclose a valve and present an upward extension through which the valve can be reached. The valve enclosing members have a generally planar bottom, an open side, and an upwardly extending side portion. The bottom projects beyond a side portion and a flange extends upwardly from the bottom portion along a side portion. The valve operating means comprises a high-head comprising an elongated central portion, an upper operating nut portion, and a lower valve nut socket portion, at least one of which is melt fused to the central portion so as to be severed from the central portion if the high-head is exposed to torque which would damage the valve or the line to which the valve is connected. Further, an adapter is provided which enables one to use a square head valve operating socket on a flat head valve nut. Means are also disclosed to make an all-plastic access box-valve assembly locatable by magnetic or electronic detection and to alert workmen as to the utility associated with the valve by a color coding.

REFERENCES:
patent: 520542 (1894-05-01), Ryan
patent: 621448 (1899-03-01), Dwyer
patent: 1325393 (1919-12-01), Calhoun
patent: 2931383 (1960-04-01), Handley
patent: 4030696 (1977-06-01), Bake et al.
patent: 4051866 (1977-10-01), Bake et al.
patent: 4497344 (1985-02-01), Kisiel

Affiliated with

Also associated with

Rating

Underground access box and valve operating and protecting means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Underground access box and valve operating and protecting means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Underground access box and valve operating and protecting means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-40796