US4587412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic sensor for tray acceptor
Assignee: Ardac Inc
•
Filing: 1984-02-27
•
Granted: 1986-05-06
•
Expires: 2004-02-27
Abstract
Abstract A magnetic reading head is provided in a tray acceptor for determining the presence of magnetic characteristics in a paper tendered as a valid currency or note. Fundamentally, the invention comprises a spring assembly, receiving a magnetic reading head, which is adjustable to position the reading head in sensing engagement with the paper maintained in the tray and offered for validation. The magnetic reading head provides a series of pulses corresponding to the presence of magnetic characteristics in the paper to a capacitor which charges upon the receipt of each pulse. When the tray reaches a set position, the charge on the capacitor is sensed, and a determination is made as to whether the paper has sufficient magnetic characteristics to constitute a valid note or currency. A time delay circuit is provided such that the magnetic sensing function can be performed only once during a preset time period.
Inventors
- 👤 Yair Apisdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:51
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/04; G06; G06K; G06K7/00; G06K7/01; G06K7/015; G06K7/08; G06K7/082; G06K7/083; G06K7/084
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
A tray acceptor for receiving and determining the autenticity of currency, comprising: a plate in juxtaposition to a path traveled by the currency maintained in a tray; a magnetic reading head; means connected to said plate for receiving said magnetic reading head and positionally maintaining it with respect to said path; circuit means connected to said magnetic reading head for detecting the presence of magnetic characteristics on the currency; and wherein said means for receiving said magnetic reading head comprises a base spring portion connected to said plate and having an opening therein for receiving said head, and a top mounting bracket connected at a first end thereof to a first end of said base spring portion, and in adjustable communication with said base spring portion at a second end thereof, said magnetic reading head being maintained between said base spring portion and said top mounting bracket.
Claim 2
Dependent Claim
147 words
A tray acceptor for receiving and determining the autenticity of currency, comprising: a plate in juxtaposition to a path traveled by the currency maintained in a tray; a magnetic reading head; means connected to said plate for receiving said magnetic reading head and positionally maintaining it with respect to said path; circuit means connected to said magnetic reading head for detecting the presence of magnetic characteristics on the currency; and wherein said means for receiving said magnetic reading head comprises a base spring portion connected to said plate and having an opening therein for receiving said head, and a top mounting bracket connected at a first end thereof to a first end of said base spring portion, and in adjustable communication with said base spring portion at a second end thereof, said magnetic reading head being maintained between said base spring portion and said top mounting bracket.
Claim 3
Dependent Claim
34 words
The tray acceptor according to claim 1 wherein said adjustable communication is obtained by a screw in adjustable communication between said top mounting bracket and said base spring portion at respective second ends thereof.
Claim 4
Dependent Claim
32 words
The tray acceptor according to claim 1 wherein said top mounting bracket has an opening therein communicating with a circuit board interconnected between said top mounting bracket and said magnetic reading head.
Claim 5
Dependent Claim
27 words
The tray acceptor according to claim 1 wherein said circuit means comprises an integrating capacitor charged as a function of the output of said magnetic reading head.
Claim 6
Dependent Claim
38 words
The tray acceptor according to claim 4 wherein said circuit means further includes means for sensing the charge on said integrating capacitor at the time the currency reaches a certain point with respect to said magnetic reading head.
Claim 7
Dependent Claim
19 words
The tray acceptor according to claim 5 wherein said sensing means comprises a comparator connected to said integrating capacitor.
Claim 8
Dependent Claim
44 words
The tray acceptor according to claim 6 wherein said comparator presents an output corresponding to the level of charge of said integrating capacitor to a latch circuit, said latch circuit being clocked by a trigger switch activated when the currency reaches said certain point.
Claim 9
Dependent Claim
27 words
The tray acceptor according to claim 7 which further includes circuit means for enabling said latching circuit at a particular time following actuation of said trigger switch.
Claim 10
Dependent Claim
19 words
The tray acceptor according to claim 2 wherein said base spring portion comprises an L-shaped member of flexible material.
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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |