Single-acting slide ring sealing

Details Single-acting slide ring sealing Single-acting slide ring sealing

1983-02-01

1984-01-10

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 961, F16J 1534

Patent

active

044249730

ABSTRACT:
A single-acting slide sealing for a liquid pump or similar. The sealing comprises a rotating counter ring (8) to be fastened to a rotating machine part (2) and a non-rotating sealing ring (9) to be supported on a stationary machine part (1). The sliding surface in the counter ring is sealingly pressed against the sliding surface in the sealing ring. The sliding surface in the sealing ring (9) is provided with a weakened part (15) which, through a channel (14) in the sealing ring, is in flow connection with a leak indicator (17), such as an electrical or mechanical indicator instrument (21), which, when the weakened part is worn through, is activated by the action of liquid entering into the channel and in advance indicates that the sealing ring is worn and must be replaced.

REFERENCES:
patent: 2491599 (1949-12-01), Allen
patent: 3749411 (1973-07-01), Lennon
patent: 3815925 (1974-06-01), Mattoon
patent: 3873102 (1975-03-01), Lotze

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