Woodworking – Combined workbench and tool chest
Patent
1976-07-16
1977-10-25
Simpson, Othell M.
Woodworking
Combined workbench and tool chest
100269B, 277152, 277212F, 277229, 425406, B27D 300, F02F 500, B30B 123
Patent
active
040552055
ABSTRACT:
An elastomeric seal suitable for use in sealing non-circular cylinders of hydraulic presses against loss of the working fluid. This seal is an elastomeric (e.g. rubber) seal having a generally L-shaped cross section. One portion of the seal functions as a support portion and includes longitudinally extending ribs along its inner face for engaging in a sealed relationship with a supporting structure. The other portion of the seal acts as a wiping portion in engagement with the moving cylinder. The wiping and support portions come together in a generally perpendicular relationship to form a rounded nose where their outer faces meet and a reinforcing fabric is formed into the seal along its outer surface and extending across the nose of the seal.
REFERENCES:
patent: 2480116 (1949-08-01), Brummer
patent: 2554622 (1951-05-01), Jones
patent: 2597976 (1952-05-01), Cousins
patent: 2765023 (1956-10-01), Fagg et al.
patent: 2875797 (1959-03-01), Clark
Schultz David C.
Withoff Alfred J.
Blandin Wood Products
Bray W. D.
Friederichs Norman P.
Simpson Othell M.
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