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Patent Searching and Data


Title:
SEALING DEVICE
Document Type and Number:
Japanese Patent JP2002256743
Kind Code:
A
Abstract:

To quickly determine whether a sealing device is unsealed or not.

A signal transmission control circuit detects whether a lock body is kept in a locked state or an unlocked state. In the locked state, the signal transmission control circuit controls a signal transmission power supply on/off circuit to feed power to a signal transmission circuit from a battery, and a signal is transmitted from the signal transmission circuit. In the unlocked state to the contrary, the signal transmission control circuit controls the signal transmission power supply on/off circuit to feed no power to the signal transmission circuit from the battery, and the signal transmission from the signal transmission circuit is stopped.


Inventors:
NISHIZAWA NOBORU
TAKAHASHI MASANOBU
Application Number:
JP2001000054152
Publication Date:
September 11, 2002
Filing Date:
February 28, 2001
Export Citation:
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Assignee:
JAPAN RADIO UEDA CO LTD
International Classes:
E05B39/00; E05B45/08; (IPC1-7): E05B39/00; E05B45/08
Attorney, Agent or Firm:
Kenji Yoshida (2 outside)