Wire-rope flaw detector

Details Wire-rope flaw detector Wire-rope flaw detector

2011-07-19

2011-07-19

Nguyen, Hoai-An D (Department: 2858)

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

C324S228000, C324S529000

Reexamination Certificate

active

07982458

ABSTRACT:
There is obtained a wire-rope flaw detector capable of realizing a high signal-to-noise ratio even in the case where only one detection coil is disposed. In the wire-rope flaw detector, there are provided a magnetizer that forms main magnetic flux in a predetermined section located along an axis direction of a wire rope (1) and a detection coil (8) that detects, in the predetermined section, leakage magnetic flux (13) emitted from a flaw portion (10) of the wire rope (1); a magnetic circuit member (7) made of a ferromagnetic material intervenes in a magnetic circuit for leakage magnetic flux that is interlinked with a detection coil (8); and in a space where at least one of the end portions, of the magnetic circuit member (7), that serve as the inflow port and the outflow port for the leakage magnetic flux is inserted between the detection coil (8) and a wire rope (1), an opening portion extends in such a way as to intervene between the foregoing end portion and the other end portion and is inserted between the detection coil (8) and the wire rope (1).

REFERENCES:
patent: 4427940 (1984-01-01), Hirama et al.
patent: 2010/0019762 (2010-01-01), Furusawa et al.
patent: 2010/0102807 (2010-04-01), Yoshioka et al.
patent: 2011/0006762 (2011-01-01), Yoshioka et al.
patent: 55-094156 (1980-07-01), None
patent: 56-044840 (1981-04-01), None
patent: 05-043605 (1993-02-01), None
patent: 09-145678 (1997-06-01), None
patent: 09-210968 (1997-08-01), None
patent: 2001-041933 (2001-02-01), None
patent: 2005-089172 (2005-04-01), None
patent: 2005-106602 (2005-04-01), None
patent: WO 2008/093409 (2008-08-01), None
patent: WO 2008/093410 (2008-08-01), None
Office Action dated Nov. 16, 2010, issued in the corresponding Japanese Patent Application No. 2009-012025.

Affiliated with

Also associated with

Rating

Wire-rope flaw detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wire-rope flaw detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wire-rope flaw detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2737348