Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
172 words
A method of checking the loading and unloading of a tanker having at least one tank provided with a metal connecting pipe adapted to be coupled via a coupling to one end of a house having a coupling at two ends, which hose can be coupled to a metal connecting pipe of a storage tank, characterized by using a hose provided with an electric conductor extending between the couplings for the dissipation of electrostatic charges; grounding the chassis of the tanker; effecting a first inductive coupling between one of the connecting pipes and an interrogator of an electromagnetic indentification system, and effecting a second inductive coupling between the other connecting pipe and a passive responder generating a coded signal in an interrogation field, so that an interrogation field formed by the interrogator cooperates via said first inductive coupling, said one connecting pipe, said electric conductor of the hose, said other connecting pipe, and said second inductive coupling with said responder; and checking the code of the responder prior to loading or unloading.
Claim 2
Independent Claim
172 words
A method of checking the loading and unloading of a tanker having at least one tank provided with a metal connecting pipe adapted to be coupled via a coupling to one end of a house having a coupling at two ends, which hose can be coupled to a metal connecting pipe of a storage tank, characterized by using a hose provided with an electric conductor extending between the couplings for the dissipation of electrostatic charges; grounding the chassis of the tanker; effecting a first inductive coupling between one of the connecting pipes and an interrogator of an electromagnetic indentification system, and effecting a second inductive coupling between the other connecting pipe and a passive responder generating a coded signal in an interrogation field, so that an interrogation field formed by the interrogator cooperates via said first inductive coupling, said one connecting pipe, said electric conductor of the hose, said other connecting pipe, and said second inductive coupling with said responder; and checking the code of the responder prior to loading or unloading.
Claim 3
Dependent Claim
113 words
An identification system for the application of the method as claimed in claim 1, characterized by a first connecting pipe connected to at least one first tank, and at least one second connecting pipe connected to at least one other tank, which connecting pipes can be connected together by means of couplings and a hose provided with an electric conductor; and by an interrogator inductively coupled to said first connecting pipe and a passive responder inductively coupled with each second connecting pipe, said responder generating a coded signal identifying the connecting pipe in question under the influence of an interrogation field generated by the interrogator, which signal can be detected by the interrogator.
Claim 4
Dependent Claim
31 words
An identification system as claimed in claim 2, characterized in that at least one of the inductive couplings is formed by means of a toroidal coil placed around a connecting pipe.
Claim 5
Dependent Claim
64 words
An identification system as claimed in claim 2, characterized in that at least one of the inductive couplings is formed by means of an electrical interruption in a connecting pipe, which interruption is bridged by a small number of windings with a low impedance for low-frequency currents and D.C. current, which windings are inductively coupled with an antenna coil of an interrogator or responder.