Registers – Records – Magnetic
Patent
1997-05-06
1999-03-30
Le, Thien Minh
Registers
Records
Magnetic
235449, G06K 1906
Patent
active
058892745
ABSTRACT:
A card reader includes a base having formed thereon two spaced walls defining therebetween a card slot through which a card is movable. Both of the walls have two openings formed thereon to be opposite to each other. A write transducer and a read transducer are respectively suspended by a first biasing member to be located within the openings of one of the walls. A dummy transducer is also suspended by a first biasing member within one of the openings of the other wall. The dummy and read transducers are opposite to each other so as to provide a force and position to the card moved through therebetween. A roller co-axially mounted to and rotatable in unison with an encoder is rotatably supported by a second biasing member within the other opening of the other wall to be opposite to the write transducer to provide a force and position to the card moved through therebetween. The second basing member has two opposite ends each fixed to the wall with an end securing device so as to allow the rotational axis of the roller to be moved relative to the wall in a direction normal to the movement of the card, but not in a direction parallel with the movement of the card. All the first biasing members have two ends secured to the respective wall to make the write, read and dummy transducers movable relative to the wall in a direction normal to the movement of the card, but not in a direction parallel with the movement of the card.
REFERENCES:
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patent: 4585929 (1986-04-01), Brown et al.
patent: 4593328 (1986-06-01), Baus, Jr.
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patent: 4731685 (1988-03-01), Orcutt
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