Sprinkler canister seal
AssigneeNational Diversified Sales, Inc.
InventorDaniel Nourian
Life of this patent
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Abstract
An irrigation sprinkler canister seal comprising a flanged screw having a threaded rod and a circular flange extending perpendicular to the rod. The seal further includes a plug piece having a threaded bore adapted to receive the threaded rod, and further including a continuous frusto-conical surface extending around an elongate axis of the plug piece, the frusto-conical surface being configured to form a circumferentially continuous fluid seal against a cylindrical rim of a cylindrical bore.
Claims9
A sealing system for sealing an irrigation sprinkler canister, comprising:
- a flanged screw having a threaded rod and a circular flange extending perpendicular to the rod;
- a plug piece having a threaded bore adapted to receive the threaded rod, and further including a continuous frusto-conical surface extending around an elongate axis of the plug piece, the frusto-conical surface being configured to form a circumferentially continuous fluid seal against a cylindrical rim of a cylindrical bore.
A method of sealing an irrigation sprinkler canister that is connected to a conduit of a water distribution network, the method comprising:
- removing, from an upper surface of the canister, a cap that is attached to the canister and configured to contain within the interior of the canister a pop-up riser, an associated biasing spring, and a throat piece defining a bore for receiving the pop-up riser;
- removing the pop-up riser from the interior of the irrigation sprinkler canister, thereby exposing an opening in the cap;
- inserting a threaded rod of a flanged screw through the opening, and thence through the bore of the throat piece;
- inserting the threaded rod into a threaded bore of a plug piece having a frusto-conical surface;
- rotating the flanged screw into the threaded bore, thereby drawing the plug piece towards the flanged screw, toward the throat piece, and towards the cap;
- further rotating the flanged screw until the frusto-conical surface of the plug piece enters and seals the bore of the throat piece, and the cap and the throat piece are captured between the plug piece and a flange of the flanged screw;
- inserting the plug piece into the canister;
- and
- re-attaching the cap to the upper surface of the canister to form a seal between the cap and the canister;
- whereby, the canister is sealed off against water flow from the water distribution network.
Dependencies are inferred from the claim text.