Trench forming assemblies having enhanced anchoring means

A trench forming assembly for forming a trench of predetermined shape comprising:

• a pair of parallel, elongate frame members defining a support surface for supporting a trench cover, each of said elongate frame members comprising an elongate horizontally leg;
• an elongate form body for shaping a moldable trench forming composition into said predetermined shape of said trench and comprising opposed side surfaces;
• a pair of co-planar elongate slots formed in said opposed side surfaces of said form body for engaging said horizontal legs of said elongate frame members;
• and
• at least one pair of upwardly extending legs for anchoring said frame members in a predetermined location, each upwardly extending leg being joined at a top portion to one of said frame members and being joined together at their lower portions to form a generally U-shaped anchoring member for maintaining said horizontal legs of said frame members in a predetermined spaced relationship for engagement with said slots of said form body.

A trench forming assembly for forming a trench of predetermined shape comprising:

• a pair of parallel elongate frame members defining a support surface for supporting a trench cover;
• an elongate form body for shaping a hardenable trench forming composition into said predetermined shape of said trench and comprising opposed side surfaces, said opposed side surfaces of said form body being engaged with said elongate members along substantially the entire length of said form body;
• at least one pair of upwardly extending legs for anchoring said frame means in a predetermined location, each upwardly extending leg joined at a top portion to one of said elongate frame members;
• and
• a plurality of disengageable connectors for connecting said top portions of said upwardly extending legs to said elongate frame members and being adapted to provide disengagement of said elongate frame members from said legs following hardening of said trench forming composition.

A trench forming assembly for forming a trench of predetermined shape comprising:

• a pair of parallel elongate frame members for shaping a trench forming composition into a pair of parallel recesses to thereby define a support surface for supporting a trench cover;
• an elongate form body for shaping a moldable trench forming composition into said predetermined shape of said trench and comprising opposed side surfaces, each of said side surfaces comprising an elongate horizontal slot adapted for engaging at least a portion of one of said frame members;
• at least one pair of upwardly extending legs for anchoring said frame means in a predetermined location, each upwardly extending leg being joined at a top portion to one of said elongate frame members;
• and
• a plurality of disengageable connectors for connecting said top portions of said upwardly extending legs to said elongate frame members, said disengageable connectors being adapted to provide disengagement of said elongate frame members from said legs following hardening of said trench forming composition.

A method for constructing an assembly for forming a trench of predetermined shape comprising:

• aligning in parallel relationship a pair of elongate frame members each comprising an elongate planar leg defining a support surface for supporting a trench cover;
• connecting said aligned frame members to end portions of a first pair of elongate anchoring legs joined together into a generally U-shaped structure at corresponding portions thereof spaced from said end portions;
• and
• engaging said aligned frame members along opposed side surfaces of an elongate form body of predetermined shape for shaping a hardenable trench forming composition into said predetermined shape of said trench to thereby form a trench forming assembly wherein said joined pair of anchoring legs cooperate for engaging said frame members with said side surfaces of said form body.

A method for constructing an assembly for forming a trench of predetermined shape comprising:

• aligning in parallel relationship a pair of elongate frame members each comprising an elongate planar leg for shaping support surface for supporting a trench cover;
• disengageably connecting said aligned frame members to end portions of a first pair of elongate anchoring legs such that said frame members can be disengaged from said pair of anchoring legs from inside locations along said elongate frame members;
• and
• engaging said aligned frame members along opposed side surfaces of an elongate form body of predetermined shape for shaping a hardenable trench forming composition into said predetermined shape of said trench to thereby form a trench forming assembly wherein said aligned frame members can be disengaged from said anchoring legs following use of said assembly to form said trench.