Abstract: The invention concerns a lockout/tagout system having a lockout device (100), a master device (200) and a slave device (300). The lockout device (100) and master device (200) are configured in mutual relationship for duplex communication, so that the lockout device (100) can unlock upon a request received from the master device (200), contingent upon an authentication protocol between the master device (200) and the lockout device (100). The master device (200) and the slave device (300) are configured in mutual relationship for duplex communication, such that the master device (200) receives a ‘clear’ request from the slave device (300), which is accepted by the master device (200) contingent upon an authentication protocol between the master device (200) and the slave device (300).

Abstract: A compound of the general formula I ##STR1## wherein R.sup.1 is halogen, R.sup.4 is a highly branched alkyl group, R.sup.2 and R.sup.3 which may be the same or different are hydrogen or halogen atoms or lower alkyl groups.

Abstract: A composition of matter for treating warm-blooded animals to eradicate internal parasites comprising a compound chosen from the group consisting of2,4-dibromo-6-nitrophenol2,4-dichloro-6-nitrophenol2-chloro-4-fluoro-6-nitrophenol2-bromo-4-fluoro-6-nitrophenol2-iodo-4-fluoro-6-nitrophenol2-bromo-4-chloro-6-nitrophenolAnd phenolic derivatives thereof and an inert carrier therefor. The composition is particularly useful in killing trematodes or nematodes.

Abstract: A method of treating warm blooded animals to eradicate certain internal parasites; which method comprises administering to said warm blooded animals a therapeutic dose of a composition comprising as active ingredient a compound of formula I. ##EQU1## wherein R.sup.1, R.sup.2 and R.sup.3 which may be the same or different are hydrogen, or halogen and at least two of R.sup.1, R.sup.2, and R.sup.3 are halogen, and R.sup.4 and R.sup.5 which may be the same or different are selected from the group consisting of hydrogen, alkyl containing from 1 to 6 carbon atoms, --NHR.sup.6 where R.sup.6 is hydrogen or an alkyl group containing from 1 to 6 carbon atoms; and when either R.sup.4 or R.sup.5 is --NHR.sup.6 then R.sup.5 or R.sup.4 respectively is hydrogen.

Abstract: A method of killing internal parasites in warm blooded animals comprising administering orally or parenterally to an infected animal an effective amount of a compound of the formula: ##SPC1##Where R.sup.1 is hydrogen or acetyl, R.sup.2 is hydrogen, acetyl or lower alkyl, X.sup.1 and X.sup.2 are iodine atoms; X.sup.3, X.sup.4, X.sup.5 and X.sup.6 which may be the same or different are chlorine, bromine, iodine, trifluoromethyl or hydrogen; at least two and not more than two of X.sup.3, X.sup.4, X.sup.5 and X.sup.6 are hydrogen; when X.sup.3 is chlorine, bromine, iodine or trifluoromethyl, then X.sup.4 and X.sup.6 are both hydrogen; and at least one of X.sup.3, X.sup.4, X.sup.5 and X.sup.6 is trifluoromethyl, said compound being administered in a dosage amount of from 1 to 50 mg active ingredient/Kg animal bodyweight.

Abstract: A method of treating warm blooded animals to eradicate certain internal parasites; which method comprises administering to said warm blooded animals a therapeutic dose of a composition comprising as active ingredient a compound of formula I ##EQU1## wherein X is halogen, and R.sup.1 and R.sup.2 which may be the same or different are selected from the group consisting of hydrogen, alkyl containing from 1 to 6 carbon atoms, -- NHR.sup.3 where R.sup.3 is hydrogen or an alkyl group containing from 1 to 6 carbons atoms; and when either R.sup.1 or R.sup.2 is -- NHR.sup.3 then R.sup.2 or R.sup.1 respectively is hydrogen.