Rotation detection sensor

Details Rotation detection sensor Rotation detection sensor

2006-08-29

2006-08-29

Lefkowitz, Edward (Department: 2862)

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

C324S207250

Reexamination Certificate

active

07098651

ABSTRACT:
A rotation detection sensor, which is a wheel-speed sensor, has a detection unit placed in a metal capped cylindrical casing and a holder fit in an opening of the casing. A flange is provided along the entire edge of the opening of the casing. Between the flange and the holder, a viscoelastic liquid gasket is entirely applied. The edge of the opening of the casing and the exposed part of the holder are covered with a resin portion. Thus, the viscoelastic liquid gasket smoothly enters the gap between the casing and the holder to ensure the gap is closed. Moreover, since the viscoelastic liquid gasket is quickly cured owing to its solvent which is speedily volatilized, the gasket exhibits a good workability. Then, after the solvent is volatilized, a rubber-based elastic sealing material is produced. The sealing material thus withstands any temperature change without problem, it never occurs that the sealing material melts to leak out, and the sealing between the casing and the holder can be ensured.

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Notice of Ground of Rejection by the Japanese Patent Office and translation thereof.
Supplementary European Search Report (Application No. EP 02 70 1605 dated Mar. 31, 2006).

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