Water aerator

Claim 2

An aerator of the type in which an upstream diaphragm directs water streamlets onto a downstream mixing means in the presence of air characterized in that the upstream diaphragm comprises a member having a thickness in the order of 0.5 mm said member defining a hole therein, said hole having a cross-section in the order of 1 mm2, a bridge arranged over said hole, said bridge defining a pair of entrance holes, the size of one of said entrance holes being different from the other entrance hole to thereby later the direction of the issuing jet of turbulent aerated fluid, whereby the water passing through said entrance and then through said hole to said downstream mixing means is turbulated.

Claim 3

The device as described in claim 1 wherein said member comprises a circular disk.

Claim 4

The device as described in claim 2 wherein said bridge is in the form of a ring arranged on the upstream side of said diaphragm.

Claim 5

The device as described in claim 3 wherein said thin circular disk further contains: a plurality of square cross-section holes arranged in a plurality of concentric circles around the center of said disk, a plurality of rings equal to the number of concentric circles and each arranged over a different one of said concentric circles, a plurality of pairs of entrances equal in number to the number of holes, and whereby water passes through each of said pairs of entrances and through said holes to said downstream mixing means.

Claim 6

The device as described in claim 4 wherein each of said entrances of several of said plurality of pairs of entrances faces inwardly toward the center of said rings and the other entrance of said several of said plurality of pairs of entrances faces outwardly from the center of said rings.

Claim 7

The device as described in claim 5 wherein the size of one entrance of a number of said plurality of pairs of entrances is different in size from the other entrance in the pair of entrances of said number of said plurality of pairs of entrances to thereby cause the issuing turbulent jet of aerated fluid to diverge or converge.

Claim 8

The device as described in claim 6 wherein the cross-sectional area of said holes is in the order of 1 sq. mm.

Claim 9

An aerator of the type in which an upstream diaphragm directs water streamlets on to a downstream mixing means in the presence of air characterized in that the upstream diaphragm comprises: a member containing a hole, the height of which is less than the longest horizontal distance across said hole, a bridge arranged over said hole and defining a pair of entrances to said hole with one entrance having a size which is different from that of the other entrance to thereby alter the direction of an issuing turbulent jet of aerated fluid, whereby water passes through said pair of entrances and through said hole to said downstream mixing means.

Claim 10

An aerator of the type in which an upstream diaphragm directs water streamlets on to a downstream mixing means in the presence of air characterized in that the upstream diaphragm comprises: a member containing a hole, the height of which is less than the longest horizontal distance across said hole, a bridge arranged over said hole and defining a pair of entrances to said hole with one entrance having a size which is different from that of the other entrance to thereby alter the direction of an issuing turbulent jet of aerated fluid, whereby water passes through said pair of entrances and through said hole to said downstream mixing means.

Claim 11

The device as described in claim 8 wherein said member comprises a thin circular disk.

Claim 12

The device as described in claim 9 wherein said bridge is in the form of a ring arranged on the upstream side of said diaphragm and said thin circular disk contains a plurality of square cross-section holes arranged in a plurality of concentric circles around the center of said disk, a plurality Of rings equal to the number of concentric circles and each ring arranged over a different one of said concentric circles, a plurality of pairs of entrances equal in number to the number of holes with the size of one entrance of a number of said plurality of pairs of entrances being different in size from the other entrance in the pair of entrances of each of said number of said plurality of pairs of entrances to thereby cause an issuing turbulent jet of aerated fluid to diverge or converge and be passed to a downstream mixing means.

Claim 13

An aerator of the type in which an upstream diaphragm directs water streamlets on to a downstream mixing means in the presence of air characterized in that the upstream diaphragm comprises a member having a hole, and a bridge arranged over said hole and defining a pair of entrances to said hole, the height of said hole being proportional to the difference in size between said entrances to alter the direction of the issuing jet, said height being less than the longest horizontal distance across said hole when said entrances are of equal size.

Claim 14

An aerator of the type in which an upstream diaphragm directs water streamlets on to a downstream mixing means in the presence of air characterized in that the upstream diaphragm comprises a member having a hole, and a bridge arranged over said hole and defining a pair of entrances to said hole, the height of said hole being proportional to the difference in size between said entrances to alter the direction of the issuing jet, said height being less than the longest horizontal distance across said hole when said entrances are of equal size.

Claim 15

An aerator of the type in which an upstream diaphragm directs water streamlets onto a downstream mixing means in the presence of air characterized in that the upstream diaphragm comprises diaphragm means having a hole and being sufficiently thin to maintain at least partly an inclined direction of the stream of water flowing through said hole, and bridge means over said hole to permit the entrance of water therethrough, said bridge means having two entrance openings, one opposite the other, with one of said openings being larger than the other to thereby overcome the impact of the stream of water which passes through the smaller of said openings and thereby causes the issuance of a jet of water through said hole at an angle to the axis of said diaphragm.

Claim 16

An aerator of the type in which an upstream diaphragm directs water streamlets onto a downstream mixing means in the presence of air characterized in that the upstream diaphragm comprises diaphragm means having a hole and being sufficiently thin to maintain at least partly an inclined direction of the stream of water flowing through said hole, and bridge means over said hole to permit the entrance of water therethrough, said bridge means having two entrance openings, one opposite the other, with one of said openings being larger than the other to thereby overcome the impact of the stream of water which passes through the smaller of said openings and thereby causes the issuance of a jet of water through said hole at an angle to the axis of said diaphragm.