Patent US3857741A successfully refreshed from Google Patents.
Patent US3738486A successfully refreshed from Google Patents.
US3738486A
Expired / Lapsed
US
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Card retrieval device
Assignee: Fujifilm Holdings Corp
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Filing: 1971-05-04
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Granted: 1973-06-12
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Expires: 1991-05-04
Abstract
Abstract A device for selectively drawing one of a large number of cards by means of an electromagnet in which the cards are each provided with an iron piece of a predetermined height at the leading edges of the cards and at different positions from each other. In order to provide selective drawal of the cards, a pressing means is provided for holding those cards, pressing means is provided for holding those cards which are not to be drawn. The operation of the pressing means and the electromagnet is controlled by the use of a microswitch.
Inventors
- 👤 S Igarashi
- 👤 S Takahama
- 👤 T Okano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:27
CPC Classifications
G; G06; G06K; G06K21/00; G06K21/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
A card retrieval device for selectively drawing a plurality of cards, each said card including, at the front edge thereof, an iron piece having a longitudinally extending projection and, at the rear side edge thereof, a notch, said device comprising a plurality of movable members selectively projected to or retracted from the position of said iron piece to prevent the drawal of a card; electromagnets which are movable towards the cards to a position close enough to magnetically attract an iron piece and movable in the opposite direction; and a hook member which is normally held in engagement with said notches but disengages therefrom only for the period when said movable members are in operation.
Claim 2
Dependent Claim
115 words
A card retrieval device for selectively drawing a plurality of cards, each said card including, at the front edge thereof, an iron piece having a longitudinally extending projection and, at the rear side edge thereof, a notch, said device comprising a plurality of movable members selectively projected to or retracted from the position of said iron piece to prevent the drawal of a card; electromagnets which are movable towards the cards to a position close enough to magnetically attract an iron piece and movable in the opposite direction; and a hook member which is normally held in engagement with said notches but disengages therefrom only for the period when said movable members are in operation.
Claim 3
Dependent Claim
82 words
A card retrieval device according to claim 1, wherein control means is provided which controls the operational timing of the respective members in such a manner that said hook member is disengaged from the notches when said movable members are in a position to selectively prevent the card drawal, and is brought into engagement with said notches after a desired card has been drawn to a position in which said hook member is not engageable with the notch in said desired card.
Claim 4
Dependent Claim
32 words
A card retrieval device according to claim 2, wherein said control means comprises an electric circuit including a plurality of microswitches and the operation of said electromagnets is associated with said microswitches.
Claim 5
Dependent Claim
26 words
A card retrieval device according to claim 1, wherein the number of said movable members is greater than the number of the cards to be retrieved.
Claim 6
Dependent Claim
25 words
A card retrieval device according to claim 1, wherein the number of said electromagnets is greater than the number of the cards to be retrieved.
Claim 7
Dependent Claim
34 words
A card retrieval device according to claim 1, wherein said electromagnets are replaced by one elongated electromagnet, so that the iron pieces on all of the cards are magnetically simultaneously attracted by said electromagnet.
References Cited (Backward Citations)
GB802139A
Cited
US3625358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |