Aquapore Moisture Systems, Inc.

Thomas N Prassas

Shannon Bard

Allan L Smith

The lawn edging (,) is formed by extruding a thermoplastic resin, preferably a thermoplastic resin such as polyethylene containing a dispersion of prevulcanized elastomer granules through a die (,) having a vertical die orifice (,) for forming the wall (,) of the channel (,). The vertical die orifice (,) also contains an element for forming protrusions (,) on a surface of the wall (,). The element preferably forms a horizontal edge on the protrusion (,). The feed rate of the element can be higher than the adjacent sections of the wall (,) such that the extruded material backs up in the die (,) and intermittently feeds through the outlet orifice (,). The channel (,) can contain a lower bead (,) and an upper hollow head member (,) which can be coated with a liquid impervious film (,) and perforated by a laser (,) to form spray apertures (,).

Composite lawn edging

Lawn edging

A universal fitting for connecting together non-porous irrigation tubing having different diameters. The fitting is closable at one or more openings with caps so that the one fitting can be used as an elbow, coupling, tee, or end cap thus avoiding the stocking or purchase of many different kinds of fitting for various diameters of irrigation hose.

Variable size fitting

Porous pipe formed by extruding a mixture of particles of vulcanized rubber dispersed in a binder resin such as linear low density polyethylene preferably having a Melt Index below 1.0 and a broad distribution of molecular weights, through a pipe die to form porous pipe and then cooling the pipe in a cooling trough. The pipe is stabilized to reduce degradation by ultraviolet light by dispersing in the binder resin an effective amount of an ultraviolet stabilizer such as 0.1 to 10% by weight of carbon black.

Method of forming stabilized porous pipe

Stabilized porous pipe

Porous pipe formed of particles of vulcanized rubber dispersed in a binder resin such as polyethylene are stabilized to reduce degradation by ultraviolet light by dispersing in the binder resin an effective amount of an ultraviolet stabilizer such as 0.1 to 10% by weight of carbon black.

Method of forming U.V. stabilized porous pipe

Water from a low pressure irrigation system is conveyed through a tube and sprayed upward from an orifice. A collection of splash plate water deflectors rotates above the orifice on supports extending up from the tube. Different surface shapes on the splash plates create different spray patterns when they are rotated into the path of the water stream from the orifice. A flow rate valve is incorporated into the tube to regulate water flow.

Selectable spray pattern low volume sprinkler

A fitting for connecting together porous and non-porous irrigation tubing, threaded garden hose, and pipe with conventional pipe thread. Some openings in the fitting have both exterior male threads to engage the hose and interior compression rings to engage the tubing. Another opening in the fitting is provided with pipe threads to allow connection to ordinary threaded risers used in underground distribution systems.

Multiple purpose irrigation fitting

An irrigation system that combines porous and non-porous tubing in a unified system by means of pressure reducing flow control fittings that connect the lower pressure porous tubing to the higher pressure non-porous distribution tubing. Small holes in discs mounted inside the fittings lower the flow and pressure to the porous tube.

Irrigation system with flow regulation

A tee shaped fitting for connecting together porous and non-porous irrigation tubing and also threaded garden hose as desired in which the three openings each have exterior male threads to engage the hose and interior compression rings to engage the tubing. The fitting is closable at one or more openings with caps so that the one fitting can be used as an elbow, coupling, tee, or end cap thus avoiding the stocking or purchase of many different kinds of fittings.

An irrigation system that uses porous and non-porous pipe in combination, the porous pipe having a porosity such that the flow of water therethrough is balanced to the flow of water through point source emitters connected to both the porous and non-porous pipes so that simultaneous point source and line source watering is possible.

Porous pipe landscape system

A pressure compensating flow rate control device includes a one-piece molded plastic body having an external surface with a recessed inlet port for receiving a fluid and a recessed outlet port for discharging a fluid. First and second passages are defined internally of the body and extend between the inlet and outlet ports to provide first and second internal fluid flow paths through the body from the inlet port to the outlet port. A flow regulating mechanism is disposed in a first chamber in the first passage for regulating fluid flow through the first flow path to provide a preset constant rate of fluid flow from the body at the outlet port and thereby define a controlled mode of operation of the device. A flow diverting mechanism is disposed in a second chamber in the second passage and has an actuating element exposed through the opening of the second chamber for adjusting the flow diverting mechanism between a first condition for blocking fluid flow through the second flow path and a second condition for permitting fluid flow through the second flow path and thereby for correspondingly operating the device in the controlled mode to discharge fluid from the outlet port at the constant flow rate and in a by-pass mode to discharge fluid from the outlet port at an augmented flow rate which combines fluid flow through the second flow path with fluid flow through the first flow path and is thereby higher than the constant flow rate alone.

Growing community of inventors

Glendale, AZ, United States of America

Thomas N Prassas