Fluid handling – With indicator – register – recorder – alarm or inspection means – Inspection means
Patent
1992-07-17
1993-08-10
Chambers, A. Michael
Fluid handling
With indicator, register, recorder, alarm or inspection means
Inspection means
137364, 137371, 137382, F16K 3700, F16L 500
Patent
active
052340295
ABSTRACT:
The disclosure relates to a safety lockout device for use with a domestic on-off natural gas valve of the type buried underground, sometimes referred to as a curb service valve. In order to prevent the inadvertent and/or unauthorized operation of the valve once it has been closed, a safety lockout device is provided comprising a U shaped bracket that is inserted into the valve box associated with the valve arranged at ground level above the valve. The bracket is of a dimension that prevents it from inadvertently falling through the valve box opening and has tabs that engage the ring of the valve box, which engagement prevents the bracket from moving relative to the valve box. To prevent removal of the bracket from the valve box a bell is arranged over the inserted bracket having a cover that prevents access to the valve by a tool used to operate the valve. The bell is of a dimension that prevents it from inadvertently falling through the valve box opening. The bracket has an eyebolt that passes through the cover of the bell which allows a padlock to be inserted into the eye, thereby the bell and bracket are protected from unauthorized removal. An indicia cover may be arranged on either the upper surface of the bell or on the outer surface of the cover of the valve box giving notice of the presence of the safety lockout device in the valve box.
REFERENCES:
patent: 148102 (1874-03-01), Wiliamson et al.
patent: 154408 (1874-08-01), McKnight
patent: 969776 (1910-09-01), Foley
patent: 1458391 (1923-06-01), Burton
patent: 1610123 (1926-12-01), Fairweather
patent: 3921449 (1975-11-01), Hawffe et al.
Brito Lucas
Thomas Jeffrey G.
Chambers A. Michael
Cott Manufacturing Company
Poff Clifford A.
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