Title:
SEALING SCREW WITH IDENTIFYING CODE
Document Type and Number:
WIPO Patent Application WO/2012/169643
Kind Code:
A1
Abstract:
Sealing screws can be unsealed by means of the method of destroying the screw head and pulling out the screw section, and then it is possible to re-seal with a separate screw of the same type. In other words, it is not possible to determine that the seal was continuous even if sealed by a sealing screw. In the present invention, insert molding or the like by means of resin or the like is performed at a main screw body, the screw head is sealed, and a screw is used having a breaking plane that breakes at a set tightening torque at the outer peripheral side of the sealed section. An identifying code that allocates a different code to each user group is attached to the sealed section. It is possible to determine that another group has not performed unsealing if sealed by a sealing screw with an identifying code that is the same as when sealing with the sealing screw.
Inventors:
NAGANO TAKEHISA (JP)
Application Number:
PCT/JP2012/064861
Publication Date:
December 13, 2012
Filing Date:
June 05, 2012
Export Citation:
Assignee:
KONDO HIROYUKI (JP)
NAGANO TAKEHISA (JP)
NAGANO TAKEHISA (JP)
International Classes:
F16B41/00
Foreign References:
| JPS6426013A | 1989-01-27 | |||
| JPS61204720U | 1986-12-24 | |||
| JP2010047061A | 2010-03-04 |
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