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.
Patent No.:
Date of Patent:
Mar. 05, 1985
Filed:
May. 18, 1981
Friedrich Krieger, W/u/ rzburg, DE;
Norbert Klemm, Giebelstadt, DE;
Gg. Noell GmbH, W/u/ rzburg, DE;
Abstract
Means for controlling pivotal doors in nuclear plants, more specifically to control doors separating storage basins for nuclear materials. Instead of providing the control means on the wall structure of juxtaposed door openings, the control means are mounted on the door panels. They include a pair of fluid-operated cylinder-and-piston motors, the direction of operation of the pistons being parallel to an edge of the door panel. The cylinder-and-piston motors are preferably mounted on an edge of the door panel. Each motor operates a linkage that includes two rods, of which one is raised when the other is lowered. One of the two rods controls abutment means precluding the door from pivoting about one of its edges, and allowing the door to pivot only about the other of its edges. The other of the two rods controls latching means which, in one position thereof firmly clamp the door panel against the cooperating door opening to exert a sealing effect and which, in the other position thereof, frees the door panel and terminates the sealing effect.