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Class 122/364 - Tube closures


Subclass of Class 122 - Liquid heaters and vaporizers
Definition: Subject matter comprising headers and tubes provided with
No. of patents: 4
Last issue date: 06/26/2001


NumberTitleIssue Date
6250259Flow-through heater for heating water
The invention is directed to a protective device for a heating unit, in particular for a flow-through heater (22), which is equipped with a current-carrying conductor (1) having a first end thereof mechanically biased into contact with a first fixed point...
06/26/2001
4231419Manipulator for inspection and possible repair of the tubes of heat exchangers, especially of steam generators for nuclear reactors
Manipulator for inspecting and, if required, repairing the tubes of heat exchangers, especially for nuclear reactors, in which a tube bundle set in a tube sheet lead into a steam generator chamber and a manipulator is brought in through a lead-in nozzle. ...
11/04/1980
4114654Tube plug
A bore plug comprises a deformable sleeve to fit inside a bore to be plugged, two tapered members interfitting with the sleeve to engage opposite ends thereof, and an intercoupling of the tapered members actuatable to draw the latter together and deform t...
09/19/1978
3954136Pressurized-water reactor steam generator heat-exchanger tube access system
A pressurized-water steam generator of the U-shaped tube bundle type, has its primary header provided with a horizontal pipe which extends through the header's wall and curves upwardly, rotation of the pipe permitting the upwardly curved inner end to regi...
05/04/1976
 
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