Sealing devices for bleed screws

Details Sealing devices for bleed screws Sealing devices for bleed screws

1979-09-17

1981-12-29

Smith, Robert I.

Fluid handling

With casing, support, protector or static constructional...

Guards and shields

215307, 222182, 277237R, 251351, B65D 4310, E03F 514, F16K 5100

Patent

active

043077480

ABSTRACT:
A sealing device for use with a bleed screw of an hydraulic system comprises a one-piece moulding of rubber or plastics material. The sealing device comprises a sealing ring of frusto-conical outline, an end cap, and a flexible strip interconnecting the ring and the cap. In its position of use the sealing ring is clamped between a shoulder on the bleed screw and a plain face on a caliper which surrounds a threaded bore into which the bleed screw is screwed. This prevents foreign matter from entering the screw threads externally. The end cap is detachably deformed over a bead at the free end of the bleed screw to prevent moisture or foreign matter from entering the bore through a bleed passage in the bleed screw.

REFERENCES:
patent: 2815039 (1957-12-01), Pickavance
patent: 2884151 (1959-04-01), Biederman
patent: 3148670 (1964-09-01), Fiedler et al.
patent: 3205882 (1965-09-01), Fiedler et al.
patent: 3710989 (1973-01-01), Armour
patent: 3758000 (1973-09-01), Mack
patent: 3871401 (1975-03-01), Lyons
patent: 3872882 (1975-03-01), Fjermestad

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