Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
136 words
A value-rated card readout and obliteration device, particularly for use with public telephone set enabling magnetic cards, comprising mechanical means for entraining a card and a pair of respectively trace readout and erase magnetic heads, characterized in that said mechanical means include a freely rotatable drum (25) for supporting and transferring a card from an inlet mouth (22) to an outlet one (23), said mouths being separated from each other, at least one endless drive belt (26) in contact engagement with the drum surface, means for feeding a card (S) in the nip between said belt and drum surface, thereby said card is transferred by said drive belt co-acting with the drum rotation, and belt deflector means comprising at least one drive roller, the readout and erase heads (32,33) being arranged radially to said drum (25).
Claim 2
Dependent Claim
136 words
A value-rated card readout and obliteration device, particularly for use with public telephone set enabling magnetic cards, comprising mechanical means for entraining a card and a pair of respectively trace readout and erase magnetic heads, characterized in that said mechanical means include a freely rotatable drum (25) for supporting and transferring a card from an inlet mouth (22) to an outlet one (23), said mouths being separated from each other, at least one endless drive belt (26) in contact engagement with the drum surface, means for feeding a card (S) in the nip between said belt and drum surface, thereby said card is transferred by said drive belt co-acting with the drum rotation, and belt deflector means comprising at least one drive roller, the readout and erase heads (32,33) being arranged radially to said drum (25).
Claim 3
Dependent Claim
61 words
A device according to Claim 1, characterized in that it comprises a second, driven belt (27) cooperating with the drive belt (26) and receiving its motion from the drum (25), and in that the two belts (26,27) flanking each other act on the drum edges and correspondingly engage the card (S) edges to maintain them correctly aligned during the transfer step.
Claim 4
Independent Claim
29 words
A device according to Claims 1 and 2, wherein the readout and erase heads (32,33) are spaced angularly apart depending on the respective operative time sequence of said heads.
Claim 5
Independent Claim
50 words
A device according to the preceding claims, wherein the angular distance between the heads (32,33) is selected to be at least equal to the card (S) largest dimension, thereby the latter may be stopped at the gap between said heads (32,33) for the time required by the head operative sequence.
Claim 6
Independent Claim
59 words
A device according to the preceding claims, wherein the driven and drive belts (26,27) encircle the drum (25) over an arc equal in length to half its circumference, and wherein the card inlet and outlet mouths (22,23) are located on the extensions of tangent lines to the drum (25) led from the ends of the diameter bounding said arc.
Claim 7
Independent Claim
42 words
A device according to the preceding claims, wherein the card feeding means for feeding a card in the nip between the driven belt and drive belt (26,27) and drum surface include a pinch roller cooperating with a pair of belt deflector rollers.
Claim 8
Independent Claim
37 words
A device according to the preceding claims, characterized in that it comprises, at the card introduction mouth (22), a magnetic switch (22a) of consent to motor (30) starting and responsive to the presence of said card (S).
Claim 9
Independent Claim
33 words
A device according to the preceding claims, wherein each head (32,33) is connected to a respective (readout or erase) drive circuit through an automatic switch-over selector which, on resetting, sequentially enables said heads.
Claim 10
Independent Claim
52 words
A device according to the preceding claims, characterized in that it comprises an electronics with an interface for connection to the set to be enabled which checks the mutually exchanged signals between said device and set, comprising: card presence signal - gear motor forward command - readout data transfer - obliteration command.
Claim 11
Dependent Claim
30 words
A value-rated card readout and obliteration device, particularly for use with public telephone set enabling magnetic cards, according to the preceding claims, and substantially as herein described and illus- strated.