Patent US2465458A successfully refreshed from Google Patents.
Patent US3780264A successfully refreshed from Google Patents.
US3780264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic read/write apparatus for stationary cards
Assignee: Unisys Corp
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Filing: 1971-03-03
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Granted: 1973-12-18
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Expires: 1991-03-03
Abstract
Abstract An apparatus for reading or writing a line of electromagnetically encoded information across a stationary card. A resilient card aligning cam urges the card against a reference edge while a read/write head traverses the card, the cam having a ramp for preventing the head from catching the edge of the card as it moves from its rest position. The head is mounted by a single bolt through a head holder, the bolt being centered in complementary curved surfaces of the head and head holder for adjustability of the head.
Inventors
- 👤 N Kondur
- 👤 L Kobylarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:37
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/01; G06K7/015
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
120 words
Apparatus for reading and writing information on a strip of magnetic media carried by a card comprising: a card holder having a recess with a reference surface at one end for receiving a card; aligning cam means located at one end of said card holder opposite the reference surface and having an elongated flat surface for contacting a substantial portion of an edge of the card inserted into said holder and for uniformly urging the card toward the reference surface; a head for reading or writing magnetically stored information; and means for advancing said head along said magnetic strip, said cam means having head ramp means for overlaying the path of travel of said head as it begins to advance.
Claim 2
Dependent Claim
120 words
Apparatus for reading and writing information on a strip of magnetic media carried by a card comprising: a card holder having a recess with a reference surface at one end for receiving a card; aligning cam means located at one end of said card holder opposite the reference surface and having an elongated flat surface for contacting a substantial portion of an edge of the card inserted into said holder and for uniformly urging the card toward the reference surface; a head for reading or writing magnetically stored information; and means for advancing said head along said magnetic strip, said cam means having head ramp means for overlaying the path of travel of said head as it begins to advance.
Claim 3
Dependent Claim
48 words
The apparatus of claim 1 wherein said aligning cam means comprises: a body member slidably urged into contact with a card in said holder; and a head ramp mounted on said body member for overlaying the path of travel of the read/write head, as it begins to advance.
Claim 4
Dependent Claim
60 words
The apparatus of claim 1 wherein said aligning cam means comprises: a body member pivoted against bias by the insertion of a card into said holder; and a head ramp mounted on said body member for abutting the edge of the card and overlaying the path of travel of said head as said head begins to advance along said strip.
Claim 5
Dependent Claim
30 words
The apparatus of claim 1 also including means for adjustably mounting said head on said advancing means, said mounting means providing limited rotary movement of said head in every direction.
Claim 6
Dependent Claim
65 words
The apparatus of claim 4 wherein said mounting means comprises: a curved surface on said head; a bolt fixed in the geometric center of said curved surface on said advancing means complementary to said curved surface on said head and having an aperture therethrough at its geometric center for receiving said bolt; and means for maintaining said bolt in a selected position in the aperture.
Claim 7
Dependent Claim
31 words
The apparatus of claim 5 wherein said advancing means comprises: a horizontal shaft; carrier means slidably mounted on said shaft; and means separable from said carrier means for holding said head.
Claim 8
Dependent Claim
30 words
The apparatus of claim 6 wherein said separable means comprises: a block having intersecting arms and bearing said complementary curved surface with said aperture at the intersection of said arms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |