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US 4,325,405 AGranted
Valve box assembly
OwnerC. Louis Christoinventor
Life of this patent
Estimating the term…
Abstract
Valve box assembly having a valve box, having a riser threadingly mounted in the valve box for fine height adjustment, and having a cover for the riser.
Claims9
A valve box assembly for plumbing comprising:
- (a) a valve box having a vertical tubular portion provided with an upper annular substantially horizontal surface, the valve box having an external annular horizontal flange adjacent the upper horizontal surface thereof,
- (b) a nut provided with internal threads and having an annular horizontal flange adapted to rest on the annular upper surface of the valve box,
- (c) a riser having an elongated vertical tubular portion provided with external threads for threading into the nut, said riser having an upper annular horizontal surface,
- (d) means for locking the nut to the valve box, and
- (e) a cover having an annular flange for resting on the upper horizontal surface of the riser, and an annular vertical flange extending downwardly into the riser, the bottom end of the vertical cover flange being spaced from the inside surface of the riser, and
- (f) an annular seal attached to the vertical flange and extending in a sealing relationship between the vertical flange and extending in a sealing relationship between the vertical flange and inside surface of the riser.
3 more elements
A valve box assembly for plumbing comrpising:
- (a) a valve box having a vertical tubular portion provided with an upper annular substantially horizontal surface, the valve box having two telescoping sections, the two telescoping sections consisting of an upper section including said upper annular surface and a lower section slidably mounted within the upper section, the upper section being provided with an interior annular horizontal flange located below the nut and above the lower section,
- (b) a nut provided with internal threads and having an annular horizontal flange adapted to rest on the annular upper surface of the valve box,
- (c) a riser having an elongated vertical tubular portion provided with external threads for threading into the nut, said riser having an upper annular horizontal surface,
- (d) means for locking the nut to the valve box, and
- (e) a cover having an annular flange for resting on the upper horizontal surface of the riser, and an annular vertical flange extending downwardly into the riser, the bottom end of the vertical cover flange being spaced from the inside surface of the riser, and
- (f) an annular seal attached to the vertical flange and extending in a sealing relationship between the vertical flange and extending in a sealing relationship between the vertical flange and inside surface of the riser.
3 more elements
Dependencies are inferred from the claim text.