Measuring and testing – Testing of apparatus
Reexamination Certificate
2011-06-07
2011-06-07
Noland, Thomas P (Department: 2856)
Measuring and testing
Testing of apparatus
C324S545000
Reexamination Certificate
active
07954391
ABSTRACT:
The disclosure relates to a method for testing the functionality of armatures, e.g., of safety armatures, in process control systems which are assigned a test device for implementing partial stroke testing and which are connected to a control device, which brings about actuation, in accordance with regulations, of the safety armature in an emergency. Prior to the start of the implementation of the partial stroke testing, a request signal is transmitted from the test device to the control device which is answered by the control device with an enable signal, the enable signal being issued as a function of the current process sequence at the armature.
REFERENCES:
patent: 2380894 (1945-07-01), Colman
patent: 3135862 (1964-06-01), Bishop et al.
patent: 6409094 (2002-06-01), Tojo et al.
patent: 6435022 (2002-08-01), Albuaijan
patent: 7486496 (2009-02-01), Gauxmann et al.
patent: 2006/0067810 (2006-03-01), Molitor
patent: 602 08 045 (2006-08-01), None
patent: WO 01/59346 (2001-08-01), None
patent: WO 02/082193 (2002-10-01), None
German Examination Report, in German, refers to 3 of the references cited above, no use of X, Y, or A codes apparent therein, 4 pages.
Dahl Martin
Kleegrewe Thomas
Kresse Heiko
Stelter Andreas
Wahlmann Andreas
ABB AG
Buchanan & Ingersoll & Rooney PC
Noland Thomas P
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