High pressure drum cover
OwnerKenneth J. Kuzelkainventor
Life of this patent
Estimating the term…
Abstract
A unitary cover is used with a tubular container having an open end with a cylindrical connecting bead at the open end. The unitary cover comprises a central circular wall. An expansion region surrounds the central circular wall. An annular flange has three concentric cylindrical walls defining an E-shaped wall. An outermost and middle cylindrical walls define a channel receivable on the cylindrical connecting bead. An innermost cylindrical wall defines a hinge and is connected to the expansion region.
Claims13
A unitary cover for use with a tubular container having an open end with a cylindrical connecting bead at the open end, the unitary cover comprising:
- a central circular wall, a concentric ring region surrounding the central circular wall, an annular flange comprising a downwardly opening U-shaped channel receivable on the cylindrical connecting bead and a cylindrical connecting wall connecting an inner edge of the annular flange, inwardly of the U-shaped channel, to the concentric ring region.
A unitary cover for use with a tubular container having an open end with a cylindrical connecting bead at the open end, the unitary cover comprising:
- a central circular wall, an expansion region surrounding the central circular wall, an annular flange having three concentric cylindrical walls defining an E-shaped wall, an outermost and middle cylindrical walls defining a channel receivable on the cylindrical connecting bead and an innermost cylindrical wall defining a hinge and being connected to the expansion region.
Dependencies are inferred from the claim text.