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US 5,491,589 AGranted
Meter reading apparatus
OwnerDavid L. Haymondinventor
Life of this patent
Estimating the term…
Abstract
A cylindrical viewing tube for reading submerged water meters, comprising a clear, high strength polycarbonate viewing tube, a closed bottom end for engaging a submerged meter face, the bottom end being replacable and being threaded onto the viewing tube.
Claims3
Apparatus to enable a user to read submerged water meters, comprising;
- a clear annealed polycarbonate viewing tube, said viewing tube having an upper end and a lower end, said lower end having inner threads;
- a rigid circular lens section having an integral annular threaded section for detachably engaging with said inner threads of the lower end of said viewing tube, said lens section and said annular threaded section comprising a unitary polycarbonate member;
- a ring seat at the lower end of said viewing tube;
- a ring seal shoulder provided on an inside surface of said lens section;
- and an 0 ring seal disposed around said annular threaded section and between said ring seat and said ring seal shoulder.
2 more elements
Dependencies are inferred from the claim text.