Underground system for treating soil
DC
First Claim
1. A method of promoting the health and well-being of grass turf on an unfrozen grass playing field by heating or cooling the grass, by the steps ofproviding a gravel bed beneath a soil profile of a grass playing field for distributing air uniformly beneath the playing field,placing a perforated pipe network in said gravel bed,providing an air blower having a suction inlet and a discharge outlet, andselectively connecting said perforated pipe network to the suction inlet of the blower to pull ambient air downwardly through the soil profile, and, alternatively, to the discharge outlet of the blower to push air upwardly through the soil profile to heat or cool the grass turf depending upon relative air and soil temperatures, wherein said suction inlet and said discharge outlet of said blower are selectively connected to said pipe network by a four-way valve.
4 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A method of treating the soil and turf of a golf course putting green that includes installing a gravel bed beneath the green and pumping air into the bed at a pressure such that the pressurized air is first distributed uniformly throughout the bed and then forced upwardly through the soil and turf of the green to treat the soil and turf.
25 Citations
4 Claims
-
1. A method of promoting the health and well-being of grass turf on an unfrozen grass playing field by heating or cooling the grass, by the steps of
providing a gravel bed beneath a soil profile of a grass playing field for distributing air uniformly beneath the playing field, placing a perforated pipe network in said gravel bed, providing an air blower having a suction inlet and a discharge outlet, and selectively connecting said perforated pipe network to the suction inlet of the blower to pull ambient air downwardly through the soil profile, and, alternatively, to the discharge outlet of the blower to push air upwardly through the soil profile to heat or cool the grass turf depending upon relative air and soil temperatures, wherein said suction inlet and said discharge outlet of said blower are selectively connected to said pipe network by a four-way valve.
-
3. A method of promoting the health and well-being of grass turf on an unfrozen grass playing field by heating or cooling the grass, by the steps of
providing a gravel bed beneath a soil profile of a grass playing field for distributing air uniformly beneath the playing field, placing a perforated pipe network in said gravel bed, providing an air blower having a suction inlet and a discharge outlet, and selectively connecting said perforated pipe network to the suction inlet of the blower to pull ambient air downwardly through the soil profile, and, alternatively, to the discharge outlet of the blower to push air upwardly through the soil profile to heat or cool the grass turf depending upon relative air and soil temperatures, and passing the air moving between the blower and the pipe network through a supply line beneath the ground so that energy is exchanged between air moving through the supply line and ground.
Specification
-
- Resources
-
Current AssigneeSubAir Systems LLC
-
Original AssigneeWilliam M. Benson
-
InventorsBenson, William M.
-
Primary Examiner(s)Raduazo, Henry E.
-
Application NumberUS08/243,294Time in Patent Office1,120 DaysField of Search47/1.01, 47/1.01 F, 47/58.25, 47/17 EC, 47/19, 405/45, 405/36, 405/43US Class Current47/58.10RCPC Class CodesA01B 45/02 for aeratingA01B 79/02 combined with other agricul...A01G 9/24 Devices or systems for heat...A01G 9/245 Conduits for heating by mea...A63C 19/00 Design or layout of playing...E01C 13/02 Foundations, e.g. with drai...E01C 13/083 Construction of grass-grown...Y02A 40/25 Greenhouse technology, e.g....
