Underground couplings
First Claim
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1. In a cylindrical sleeve-type embodiment of all standard trade sizes thereof, and the new longer, greater Glue Surface Area wherein said expanding the Glue Surface Area from 170% to 230% of existing standard couplings.
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Abstract
This invention is a new and improved PVC conduit coupling (FIG. 1) designed specifically for the use of connecting PVC conduits together under roadways, asphalt, concrete and underground. A long, cylindrical, sleeve-type embodiment that has a greater Glue Surface Area (1) and a stop ring (4). This new invention utilizes the greater Glue Surface Area (1) that keeps conduits from pulling apart, giving the installer and the owner assurance of conduit continuity.
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Citations
4 Claims
- 1. In a cylindrical sleeve-type embodiment of all standard trade sizes thereof, and the new longer, greater Glue Surface Area wherein said expanding the Glue Surface Area from 170% to 230% of existing standard couplings.
- 3. , In a cylindrical sleeve-type embodiment of all standard trade sizes thereof, and the Glue Surface Area wherein said is the same or greater than the bell end of a ten foot piece of PVC conduit (ridged non-metallic) on a detached unit.
Specification