Lip-type seal

Details Lip-type seal Lip-type seal

2004-01-30

2008-03-18

Pickard, Alison K (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

C277S576000, C277S577000, C277S551000, C277S562000

Reexamination Certificate

active

07344140

ABSTRACT:
The lip-type seal of the present invention is a lip-type seal with which the outer periphery of a rotational shaft (S) supported by a predetermined housing (H) is sealed. The lip-type seal is made up of a first annular reinforcing member (11) and a first sealing member (12). The first reinforcing member (11) includes a wall surface part (11a) defining a hole through which the rotational shaft (S) is passed and a cylindrical part (11b) bent from the outer edge of the wall surface part (11a). The first sealing member (12) includes an annular base (12a) that is joined to the housing (H), a first lip part (12b) that extends almost conical from the base (12a) inwardly in the radial direction and that comes into contact with the rotational shaft (S), and an annular concave part (11c) formed on the base (12a) so as to detachably fit the cylindrical part (11b). Accordingly, a desired sealing capability can be secured, and the components can be easily assembled, disassembled, and recycled.

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