Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1991-09-12
1993-01-12
Walton, George L.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
251214, 251327, 251328, 277165, 277188A, 277206R, F16K 302, F16K 4104, F16J 1520, F16J 1540
Patent
active
051781808
ABSTRACT:
The present invention includes an improved transverse seal in a gate valve having an assembly portion and a gate. The assembly portion comprises a body, a chest and a top structure or bonnet. The improved transverse seal is located within the chest of the assembly portion and is in constant contact with the gate on each side of the gate. This transverse seal comprises a pliable, longitudinally extending casing of generally U-shaped cross section having a bottom member in contact with the gate and two oppositely disposed leg members. The bottom member is provided with a plurality of raised ribs. A packing material rests within the cavity of the casing, to provide support and pressure on the transverse seal. The oppositely disposed leg members also include longitudinally extending flanges at their distal ends. A rigid scraping blade is placed adjacent to each leg member and rests on its corresponding flange such that one edge of the scraping blade continuously contacts the gate. As these blades are placed at opposite sides of the casing, they produce a cleaning effect by wiping material from the gate. Furthermore, the positioning of the scraping blades adjacent to the leg member and its corresponding flange secures the transverse seal in its groove, and prevents "rolling" of the transverse seal into the gate receiving channel.
REFERENCES:
patent: 1612039 (1926-12-01), Miller
patent: 2731282 (1956-01-01), McManus et al.
patent: 2774371 (1956-12-01), Grannenfelt
patent: 2829862 (1958-04-01), Wey
patent: 3319661 (1967-05-01), Shindler
patent: 3710816 (1973-01-01), Prince
patent: 3993092 (1976-11-01), Still
patent: 4206905 (1980-06-01), Dobler
patent: 4773440 (1988-09-01), Yanagawa et al.
patent: 4886241 (1989-12-01), Davis et al.
Neuerberg Duane P.
Parris Wannis C.
Stelter Keith F.
Hall James D.
Walton George L.
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