Neck seal

Claim 2

In a machine having a rotary element supported in a bearing, a bearing seal for preventing each of two different fluids used in the operation of the machine from contaminating the other, said bearing seal comprising: a neck seal mounted in fluid tight engagement on said rotary element; an annular seal end plate attached to the stationary part of said bearing and extending radially inward with the inner periphery of its inner part adjacent said neck seal; a first circular flange on one side of said seal end plate; a second circular flange on the other side of said seal end plate; first and second fixed circular surfaces on the said flanges on opposite sides of the said inner part of said seal end plate; first and second circular flingers attached to and extending away from said neck and slidingly engaging said first and second circular surfaces respectively; a first drain in said first circular flange, said first drain having an inlet located between said inner part of said seal end plate and said first flinger; and a second drain in said second circular flange, said second drain having an inlet located between said inner part of said seal end plate and said second flinger, each of said drains leading to a discharge outlet at the exterior of the bearing.

Claim 3

The construction set forth in claim 1 wherein the said drains are independent of each other, with each drain leading to a separate outlet at the exterior of the bearing, whereby the fluids passing each flinger may be independently observed at said outlets.

Claim 4

The construction set forth in claim 1 wherein the said drains lead to a common outlet at the exterior of the bearing.

Claim 5

The construction set forth in claim 1 wherein the outlets associated with said drains are located in the lower part of the body of said seal end plate.

Claim 6

The construction set forth in claim 1, and first and second generally torus shaped baffles mounted on the rotary element with their concave sides facing each other and the said first and second circular flanges extending within the respective concave areas of said torus shaped baffles.

Claim 7

The construction set forth in claim 1 wherein said first drain is interrupted at a location intermediate its inlet and outlet, whereby fluid from a source other than the inlet of said first drain can also enter said first drain.

Claim 8

In a machine having a bearing supporting rotary element, a bearing seal for preventing each of two different fluids used in the operation of the machine from contaminating the other, said bearing seal comprising first and second generally torus shaped baffles mounted on said rotary element between the end of the rotary element and the said bearing with their concave sides facing each other; a neck seal mounted in fluid tight engagement on said rotary element between said torus shaped baffles; an annular seal end plate attached to the stationary part of said bearing and extending radially inward between said torus shaped baffles With the inner periphery of its inner part adjacent said neck seal; a first circular flange on one side of said seal end plate extending within the concave space of said first torus shaped baffle; a second circular flange on the other side of said seal end plate extending into the concave space of said second torus shaped baffle; first and second fixed circular surfaces on the said flanges on opposite sides of the said inner part of said seal end plate; first and second circular flingers attached to and extending away from said neck seal and slidingly engaging said first and second circular surfaces respectively; a first drain in said first circular flange, said first drain commencing between said inner part of said seal end plate and said first flinger; and a second drain in said second circular flange, said second drain commencing between said inner part of said seal end plate and said second flinger, each said drain associated with a passage leading to an exterior discharge position whereby samples of fluid passing through said drains may be collected for testing.

Claim 9

In a machine having a bearing supporting rotary element, a bearing seal for preventing each of two different fluids used in the operation of the machine from contaminating the other, said bearing seal comprising first and second generally torus shaped baffles mounted on said rotary element between the end of the rotary element and the said bearing with their concave sides facing each other; a neck seal mounted in fluid tight engagement on said rotary element between said torus shaped baffles; an annular seal end plate attached to the stationary part of said bearing and extending radially inward between said torus shaped baffles With the inner periphery of its inner part adjacent said neck seal; a first circular flange on one side of said seal end plate extending within the concave space of said first torus shaped baffle; a second circular flange on the other side of said seal end plate extending into the concave space of said second torus shaped baffle; first and second fixed circular surfaces on the said flanges on opposite sides of the said inner part of said seal end plate; first and second circular flingers attached to and extending away from said neck seal and slidingly engaging said first and second circular surfaces respectively; a first drain in said first circular flange, said first drain commencing between said inner part of said seal end plate and said first flinger; and a second drain in said second circular flange, said second drain commencing between said inner part of said seal end plate and said second flinger, each said drain associated with a passage leading to an exterior discharge position whereby samples of fluid passing through said drains may be collected for testing.

Claim 10

The construction set forth in claim 7, there being another larger circular flange on the same side as said first circular flange, the passage associated with said first drain also being associated with the area between said first flange and said other larger flange.

Claim 11

The construction set forth in claim 7, and a third flinger extending from said neck seal between said second circular flange and said second torus shaped baffle.

Claim 12

The construction set forth in claim 7, said second flange being of increasing diameter in the direction away from said first flange.