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:
Sep. 18, 2001
Filed:
Feb. 16, 2001
Masahiro Otsu, Nisshin, JP;
Maspro Denkoh Co., Ltd., Aichi, JP;
Abstract
A series unit capable of easily changing over a undirectional state to/from a bidirectional state and easily judging which state the series unit is in, is provided. A high pass filter,and a changeover switch,are included, and an operating protrusion,of the changeover switch,is provided in a circular recess,of a panel,formed to surround an F-type terminal,provided on a front surface. A cylindrical adapter,inserted into the circular recess,is provided so as to operate the operating protrusion,. The adapter,has a notch,which is provided on one side portion of the adapter,and which does not press the operating protrusion,. By inserting the adapter,while rotating the adapter and changing an angle, a unidirectional state can be changed over to/from a bidirectional state. In addition, a mark,indicating a position of the operating protrusion,is provided on the panel,and a mark,indicating a notch position is provided on an end portion on a front surface of the adapter