Gasket with locking lugs
AssigneeVertex, Inc.
InventorsWilliam Andrick, Michael Ferrara
Life of this patent
Estimating the term…
Abstract
A pipe gasket includes a toroidal gasket body and projections extending away from a peripheral surface of the gasket body. The gasket body is configured to allow the gasket body to roll along a spigot end of a first pipe as the spigot end is received inside a bell end of a second pipe. The projections each include a first surface and a second surface. The first surface is configured to facilitate rotation of the gasket body in a first rotational direction. The second surface is configured to inhibit rotation of the gasket body in a second, opposite, rotational direction.
Claims24
A pipe gasket comprising:
- a toroidal gasket body configured to allow the gasket body to roll along a spigot end of an associated first pipe as the spigot end is received inside a bell end of an associated second pipe;
- and
- at least two projections extending away from a peripheral surface of the gasket body and spaced from one another around the peripheral surface, each projection including a first surface and a second surface, each surface extending away from the peripheral surface at an angle, the first surface being configured to facilitate rotation of the gasket body in a first rotational direction and the second surface being configured to inhibit rotation of the gasket body in a second, opposite, rotational direction.
A directional pipe gasket for a bell and spigot pipe joint, the gasket comprising:
- a gasket body formed of a flexible material;
- and
- at least two locking projections extending away from a periphery of the gasket body and configured to allow a rolling of the gasket body in a first rotational direction along a spigot end of a first associated pipe as the spigot end is received inside a bell end of a second associated pipe, wherein each of the at least two locking projections has substantially the same dimensions as each other one of said at least two locking projections.
A directional pipe gasket comprising:
- a toroidal gasket body having a peripheral surface that is spaced by a first substantially constant radius from an interior point of the body to facilitate rolling of the gasket body along a spigot end of a first associated pipe when the spigot end is received inside a bell end of a second associated pipe;
- and
- n locking projections protruding away from the peripheral surface, where n is greater than one, wherein the locking projections are angularly displaced from one another around the peripheral surface and each of the n projections includes an apex that is spaced a second substantially constant radius from the interior point of the body, wherein the second radius is greater than the first radius, but the second radius is small enough to allow the gasket body to roll along the spigot end of the first associated pipe when the spigot end is received inside the bell end of the second associated pipe.
Dependencies are inferred from the claim text.