The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2010
Filed:
Sep. 17, 2008
Takuya Machida, Tokyo, JP;
Kiyoshi Toma, Tokyo, JP;
Takuya Machida, Tokyo, JP;
Kiyoshi Toma, Tokyo, JP;
Nidec Copal Corporation, Tokyo, JP;
Abstract
A barrier device of the present invention includes a cover defining a front aperture, a base defining a rear aperture, an annular gap formed between a rear end face of the front aperture and a front end face of the rear aperture, a barrier member movably provided through the gap between a closed position and an opened position, and a seal member sealing the gap. The seal member is provided over an entire circumference of the clearance and formed such that, when the barrier member is in the opened position, the seal member seals the gap with a part thereof being in contact with the barrier member, and when the barrier member is in the closed position, the seal member deforms to make contact with a surface of the barrier member. This enables the barrier member to open and close smoothly, and reliably prevents penetration of dirt, dust, moisture or the like through the gap.