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US 4,710,100 AGranted
Wind machine
OwnerOliver Laing, Johannes L. N. Lainginventors
Life of this patent
Estimating the term…
Abstract
The wind machine has at least two rotors fixed to a tower. The tower is rotatably supported by a foot bearing at its base and a second bearing positioned below a horizontal stud which supports a pair of rotor units. The second bearing is supported by guy wires and the rotor units can pivot about the stud axis. The wind machine is used to drive a pump and a plurality of wind machines can drive pumps in series or in parallel.
Claims12
A wind machine of the type having at least two rotor units, and a tower for supporting the rotor units and having a vertical axis, comprising:
- (a) a foot bearing for rotatably supporting the tower at a bottom end;
- (b) a stud rigidly fixed to said tower in a generally horizontal position for supporting a pair of said at least two rotor units in a position that the rotors rotate in a plane on the downwind side of the tower and are spaced horizontally;
- (c) a second bearing on said tower positioned above the lowest point of rotation of said rotor and below said stud and providing attachment for guy wires to hold said tower in an upright position rotatable about a vertical axis;
- and
- (d) each of said rotor units of said pair rotates in a direction opposite from the other.
2 more elements
Dependencies are inferred from the claim text.