Geometrical instruments – Distance measuring – Environmental isolation
Reexamination Certificate
2005-08-30
2005-08-30
Bennett, G. Bradley (Department: 2859)
Geometrical instruments
Distance measuring
Environmental isolation
C033S706000
Reexamination Certificate
active
06935043
ABSTRACT:
In a scale device including a case member (8) having a guide opening (9) formed therein, seal lip members (12A,12B), a carrier unit (13) having seal lip pressing means (22, 23) formed thereon, and a coupling member (16) which slides inside and relative to the guide opening (9), the seal lip members (12A,12B) are pressed at end portions (12e, 12f) thereof by the seal lip pressing means (22, 23) in the vicinity of opposite end portions (16b, 16c) of the coupling member (16) to prevent the seal lip members (12A,12B) from being spread. Thus, any gaps can be prevented from taking place between the seal lip members (12A,12B) and coupling member (16) in the vicinity of the opposite end portions (12e, 12f) of the latter. Therefore, dust or the like can be prevented from entering the case member (8).
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Nakamura Gunichi
Ohno Mitsuru
Bennett G. Bradley
Haverstock & Owens LLP
Sony Precision Technology Inc.
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