Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Reexamination Certificate
2006-11-07
2006-11-07
Barrera, Ramon M. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
Reexamination Certificate
active
07132914
ABSTRACT:
A superconducting magnet apparatus which renders possible efficient, accurate and secure connection of a superconducting magnet current lead is provided. In the superconducting magnet apparatus of the present invention, a first current lead (21) and a second current lead (22) which compose a detachable current lead for excitation power supply are automatically attached to/detached from each other via a drive mechanism (30) using a piezoelectric ceramic. Therefore, professional skills in operation and maintenance required for this attachment/detachment operation are not necessary and the apparatus is easy to take care of. Also, no manpower is required even if a plurality of superconducting magnets are excited/demagnetized one after another, and efficient operation of the apparatus is possible. Furthermore, the piezoelectric ceramic is less subject to a magnetic field. Thus, the drive mechanism can be operated properly, and a contact pressure necessary for each attachment/detachment at a contact site between a lead contact portion (21a) and an attachment/detachment portion (22a) can be accurately obtained.
REFERENCES:
patent: 3839689 (1974-10-01), Biltcliffe et al.
patent: 5099215 (1992-03-01), Woods et al.
patent: 5291168 (1994-03-01), Woods et al.
patent: 5584184 (1996-12-01), Inaguchi et al.
patent: 60-032374 (1985-02-01), None
patent: 61-222209 (1986-10-01), None
patent: 61-222286 (1986-10-01), None
patent: 63-157903 (1988-10-01), None
patent: 03-232205 (1991-10-01), None
patent: 05-114754 (1993-05-01), None
patent: 05-205939 (1993-08-01), None
patent: 05-291036 (1993-11-01), None
patent: 07-283023 (1995-10-01), None
patent: 8-46254 (1996-02-01), None
patent: 2000-182821 (2000-06-01), None
patent: 2000-315606 (2000-11-01), None
Shunji Yamamoto, et al., “Improvement in reliability of a detachable power lead”, Lecture briefs at the 42ndmeeting on cryogenic engineering and superconductivity for 1989 Autumn, C1-4, P44 (Nov., 1989).
Tsukasa Wada, Akio Sato, “Low heat-leaking detachable power lead”, Resumes for the meeting on cryogenic engineering B3-7, P136 (May, 1987).
Igarashi Motohiro
Nemoto Kaoru
Barrera Ramon M.
Central Japan Railway
Sughrue & Mion, PLLC
LandOfFree
Superconducting magnet apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Superconducting magnet apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting magnet apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3673877