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.

Date of Patent:
Oct. 21, 1986

Filed:

Oct. 13, 1983
Applicant:
Inventors:

Jacques B Defaucheux, Jeumont, FR;

Freddy Guedj, Jeumont, FR;

Assignees:

Jeumont-Schneider, Puteaux, FR;

Framatone, Courbevoil, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C / ;
U.S. Cl.
CPC ...
376228 ; 376232 ; 376233 ; 294906 ; 294 8629 ;
Abstract

A safety device to be applied to the vertical displacement of, for example, the control rods of a nuclear reactor, comprises the combination of a stator placed on the outside upper part of an impervious, nonmagnetic cylinder within the inside of which a rotor is mounted about its shaft, free in axial translation, with the shaft rotatable with the rotor but fixed in translation, and with the rotation of the shaft transferred to a hollow threaded rod which will transfer rotation to a nut slidable vertically inside the cylinder, supporting the control rods therebelow; the rotor also controlling the opening and closing of a jaw for holding and releasing the hollow threaded rod.


Find Patent Forward Citations

Defaucheux, Jacques. (1986). Electromagnetic safety device of a screw/nut type (U.S. Patent No. 4618471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4618471

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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