Drainage channel with means for maintaining proper slope during installation
AssigneePolydrain, Inc.
InventorsLarry E. Kirkpatrick, Barry C. Williams
Life of this patent
Estimating the term…
Abstract
An anchor 20 is disclosed for supporting an open top drainage channel 40 within a trench. Anchor 20 permits accurate placement and easy adjustment of channel 40 and thereafter permits the entire channel 40 to be embedded in concrete in a single pour. The anchor 20 is embedded within the earth defining the trench and counteracts the natural buoyancy so that channel 40 does not float upwardly in the unhardened concrete.
Claims11
In a line, such as a drainage channel, for being embedded in a trench in concrete at a pre-determined slope, said line being defined by an elongate body having outer walls and inner, spaced-apart walls defining a fluid-carrying space therebetween, the improvement which comprises anchor means for maintaining proper slope during installation of the line in concrete by counteracting the buoyancy of the line, said anchor means including:
- (a) at least one relatively long spike for being inserted into earth defining the trench;
- (b) clasp means carried by said spike;
- and,
- (c) connecting means carried by the outer walls of said channel for connecting to and cooperating with said clasp means to retain the channel at its proper slope while the concrete is poured around the channel until the concrete hardens by preventing the channel from floating upwardly in the unhardened concrete;
- said connecting means comprising an outwardly projecting rib extending along the length of the channel and said clasp includes a detent for being placed over the upper surface of the rib in channel-retaining relation thereto.
In a drainage channel of the type characterized by having opposing side walls, a bottom wall and a top opening opposite said bottom wall for receiving fluid into said channel, said side and bottom walls having an outer surface, and an inner surface, of said side walls collectively defining a fluid-carrying space therebetween, the improvement which comprises anchor means for maintaining proper slope in the drainage channel during installation thereof in a trench in concrete by counteracting buoyancy of the channel, said means including:
- (a) at least one relatively long spike for being inserted into earth defining the trench;
- (b) clasp means carried by said spike;
- and,
- (c) connecting means carried by the outer walls of said channel for connecting to and cooperating with said clasp means to retain the channel at its proper slope while the concrete is poured around the channel until the concrete hardens by preventing the channel from floating upwardly in the unhardened concrete;
- said connecting means comprising a rib projecting outwardly from the outer surface of each said opposing side walls of said channel and wherein said clasp includes a pair of spaced-apart arms for embracing the channel and a detent on the free end of each arm for being placed over the upper surface of each of said ribs in channel-retaining relation thereto.
Dependencies are inferred from the claim text.