Method for making precast concrete meter pit
AssigneePrecast Concepts, LLC
InventorsEdward J. Anderson, Geoffery S. Parrington, Eugene J. Pelchat, Jr.
Life of this patent
Estimating the term…
Abstract
A precast concrete meter pit consisting of a plurality of precast concrete hollow elongated cylindrical wall sections in end to end relation to one another is fabricated by utilizing a slip form packerhead apparatus in which the wall sections are formed with an annular slip ring when concrete is injected into the slip form apparatus.
Claims12
A method of fabricating a meter pit, said meter pit comprising elongated precast wall sections of generally cylindrical configuration in end-to-end relation to one another, said pit being made from the steps comprising:
- (a) securing a slip ring within a concentric jacket;
- (b) positioning a pallet having said concentric jacket attached thereto on a turntable;
- (c) lowering a packerhead assembly within said jacket, said packerhead assembly having a concentric rollerhead provided with a trowel, said trowel having a radially inwardly and downwardly inclined lower edge;
- (d) injecting concrete into an annular space between said jacket and said rollerhead for downward flow until the space is entirely filled;
- (e) raising said rollerhead and trowel as said annular space is being filled followed by removing said jacket;
- and
- (f) removing said slip ring from said wall sections.
A method of fabricating a meter pit, said meter pit comprising a hollow, elongated precast concrete pipe of generally cylindrical configuration having a plurality of wall sections, said pit being made from the steps comprising:
- (a) positioning a pallet on a bottom plate and turntable, said pallet having an aligned outer concentric jacket, a slip ring, and an inner concentric rollerhead provided with a trowel having a radially inwardly and downwardly inclined lower edge which defines an inner beveled edge surface of at one end of said pipe;
- (b) injecting concrete into an annular space between said jacket and said rollerhead for downward gravity flow until the space is entirely filled to define said pipe with an inner beveled surface at one end;
- (c) raising said rollerhead and trowel as said annular space is being filled followed by removing said jacket;
- and
- (d) removing said slip ring.
Dependencies are inferred from the claim text.