Tool for operating subterranean utility valves

Details Tool for operating subterranean utility valves Tool for operating subterranean utility valves

2007-12-25

2007-12-25

Shakeri, Hadi (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Plural pivoted jaws and handle-lever

C081S055000, C081S128000, C081S451000

Reexamination Certificate

active

11336800

ABSTRACT:
A tool for operating a subterranean utility valve having limited accessibility includes a hollow housing with a plurality of elongated members mounted for sliding movement within the housing. Each elongated member is movable in a direction away from the first open end of the housing for placement about a valve nut of such utility valve. A handle is connected to the housing for biasing elongated members for engagement with such valve nut and for generating a torque enabling rotation of such valve nut in order to control flow through such utility valve. A rigid member is connected to plurality of elongated members for retaining and remotely moving them within the hollow housing.

REFERENCES:
patent: 58306 (1866-09-01), Sedgwick
patent: 531715 (1895-01-01), Brown
patent: 1395585 (1921-11-01), Kizer
patent: 1441183 (1923-01-01), Silver
patent: 2669896 (1954-02-01), Clough
patent: 3377893 (1968-04-01), Shorb
patent: 3891181 (1975-06-01), Sanders
patent: 4573378 (1986-03-01), McDonald
patent: 6539826 (2003-04-01), Oesterle et al.

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