Method of fabricating a precast concrete meter pit
AssigneePrecast Concepts, LLC
InventorsEdward J. Anderson, Geoffery S. Parrington, Eugene J. Pelchat, JR.
Life of this patent
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Abstract
A precast concrete meter pit consisting of an elongated hollow pipe having a beveled support ledge at one end and notches at the opposite end is fabricated by utilizing a slip form packerhead apparatus in which the beveled support ledge is formed by a radially inwardly inclined trowel edge bearing against a pallet member which is caused to vibrate when concrete is injected into the slip form apparatus.
Claims20
A method of fabricating a meter pit, said meter pit comprising an elongated precast concrete pipe of generally cylindrical configuration having a ledge projecting radially inwardly from one end thereof, comprising the steps of:
- (a) positioning a pallet having a concentric jacket attached thereto on a turntable;
- (b) lowering a packerhead assembly within said jacket, said packerhead having a concentric rollerhead provided with a trowel, said trowel having a radially inwardly and downwardly inclined lower edge which forms an inner surface of said ledge;
- (c) injecting concrete into an annular space between said jacket and said rollerhead for downward flow until the space is entirely filled;
- and
- (d) raising said rollerhead and trowel as said annular space is being filled followed by removing said jacket.
A method of fabricating a meter pit, said meter pit comprising an elongated precast concrete pipe of generally cylindrical configuration having a ledge projecting radially inwardly beyond an inner wall surface of said pipe, comprising the steps of:
- (a) positioning a pallet on a bottom plate and turntable, said pallet having an aligned outer concentric jacket and inner concentric rollerhead provided with a trowel having a radially inwardly and downwardly inclined lower edge which defines an inner beveled edge surface of said ledge;
- (b) injecting concrete into an annular space between said jacket and said rollerhead for downward gravity flow until the space is entirely filled;
- and
- (c) raising said rollerhead and trowel as said annular space is being filled followed by removing said jacket.
A method of fabricating a meter pit, said meter pit comprising a precast concrete hollow elongated cylindrical body, said body including circumferentially spaced notches at one end and a circular support ledge at the opposite end thereof, said circular support ledge projecting radially inwardly from said opposite end of said body and beyond an inner wall surface of said pipe.
A method for making a precast concrete meter pipe wherein a packerhead assembly includes a trowel assembly and a rollerhead assembly, a jacket in outer spaced concentric relation to said packerhead assembly, and means for rotating said rollerhead assembly, the steps comprising:
- (a) positioning said trowel assembly, which is of generally cylindrical configuration and terminating in a radially inwardly and downwardly inclined lower edge, on an annular pallet;
- and
- (b) extending a riser circumscribing an inner annular edge thereof upwardly within said trowel assembly.
Dependencies are inferred from the claim text.