US4876555A
Expired / Lapsed
US
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Resonance label and method for its fabrication
Assignee: Checkpoint Systems Inc
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Filing: 1988-03-15
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Granted: 1989-10-24
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Expires: 2008-03-15
Abstract
Abstract For carrying out the deactivation at a lower current and with greater reliability, at least one continuous hole (11) which can be made, for example, by means of a needle roll is provided in the insulating layer (1) of a resonance label in the region (10) between two conducting layers (2, 3).
Inventors
- 👤 Paul R. Jorgensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:22
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/22; G08B13/24; G08B13/2402; G08B13/2405; G08B13/2414; G08B13/242; G08B13/2428; G08B13/2437; G08B13/244; G08B13/2442; B; B32; B32B; B32B2519/00; B32B2519/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
144 words
A deactivatable resonance label, comprising: a dielectric layer having first and second opposed faces; a first conducting layer on the first face of the dielectric layer, the first conducting layer being shaped to form an inductor and a first capacitor plate; a second conducting layer on the second face of the dielectric layer, the second conducting layer being shaped to form a second capacitor plate, the first and second conducting layers being at least partially superposed, said first and second conducting layers and said dielectric layer forming together an oscillating circuit; and shorting means for enabling creation of a short-circuit between the first and second conducting layers when it is desired to deactivate the oscillating circuit, the shorting means being comprised of at least one throughhole passing through the dielectric layer to provide a short circuit path between the first and second conducting layers.
Claim 2
Dependent Claim
144 words
A deactivatable resonance label, comprising: a dielectric layer having first and second opposed faces; a first conducting layer on the first face of the dielectric layer, the first conducting layer being shaped to form an inductor and a first capacitor plate; a second conducting layer on the second face of the dielectric layer, the second conducting layer being shaped to form a second capacitor plate, the first and second conducting layers being at least partially superposed, said first and second conducting layers and said dielectric layer forming together an oscillating circuit; and shorting means for enabling creation of a short-circuit between the first and second conducting layers when it is desired to deactivate the oscillating circuit, the shorting means being comprised of at least one throughhole passing through the dielectric layer to provide a short circuit path between the first and second conducting layers.
Claim 3
Dependent Claim
29 words
The resonance label of claim 1, wherein said at least one throughhole is disposed in said dielectric layer at a location thereof between said first and second capacitor plates.
Claim 4
Dependent Claim
28 words
The resonance label of claim 1, wherein said dielectric layer is fabricated of material selected from the group of polypropylene, polystyrene, doubly oriented polypropylene, and doubly oriented polystyrene.
Claim 5
Dependent Claim
21 words
The resonance label of claim 3, wherein said dielectric label has a thickness in the range from 9 to 17 micrometers.
Claim 6
Dependent Claim
37 words
The resonance label of claim 1, wherein said at least one throughhole comprises a plurality of throughholes and wherein said plurality of throughholes do not penetrate through at least one of said first and second conducting layers.
Claim 7
Dependent Claim
37 words
The resonance label of claim 1, wherein said at least one throughhole comprises a plurality of throughholes arranged in a row, said row of throughholes extending beyond the location, on said dielectric layer, of said capacitor plates.
Claim 8
Dependent Claim
31 words
The resonance label of claim 6, wherein said plurality of throughholes have a throughhole spacing associated therewith and said throughhole spacing is smaller than a dimension associated with said capacitor plates.
Claim 9
Dependent Claim
42 words
The resonance label of claim 1, wherein said at least one throughhole comprises first and second spaced rows of throughholes, the spacing between said first and second rows of throughholes being smaller than the dimension of said capacitor plates along said spacing.
Claim 10
Dependent Claim
24 words
The resonance label of claim 1, wherein said at least one throughhole has a hole area of less than about 0.75 mm 2 .
Claim 11
Dependent Claim
24 words
The resonance label of claim 1, wherein said at least one throughhole has a hole area of less than about 0.003 mm 2 .
Claim 12
Dependent Claim
28 words
The resonance label of claim 1, wherein said at least one throughhole has a hole area in the range of 0.003 mm 2 to 0.006 mm 2 .
Claim 13
Dependent Claim
25 words
The resonance label of claim 1, wherein said at least one throughhole has a diametrical/ diagonal dimension in the range of 10 to 20 micrometers.
Claim 14
Dependent Claim
21 words
The resonance label of claim 1, wherein said dielectric layer constitutes the only layer between said first and second conducting layers.
Claim 15
Dependent Claim
20 words
The resonance label of claim 1, wherein said at least one throughhole comprises a slit formed in the dielectric layer.
Claim 16
Independent Claim
161 words
A method for fabricating a deactivatable resonance label, said method comprising the steps of: providing a planar dielectric layer having first and second faces; forming a first conducting layer on the first face of the dielectric layer, the first conducting layer being shaped to form an inductor and a first capacitor plate; forming a second conducting layer on the second face of the dielectric layer, the second conducting layer being shaped to form a second capacitor plate, the first and second conducting layers being at least partially superposed, said first and second conducting layers and said dielectric layer forming together an oscillating circuit; and forming shorting means in the dielectric layer for enabling creation of a short-circuit between the first and second conducting layers when it is desired to activate the oscillating circuit, the shorting means being comprised of at least one throughhole passing through the dielectric layer to provide a short circuit path between the first and second conducting layers.
Claim 17
Independent Claim
161 words
A method for fabricating a deactivatable resonance label, said method comprising the steps of: providing a planar dielectric layer having first and second faces; forming a first conducting layer on the first face of the dielectric layer, the first conducting layer being shaped to form an inductor and a first capacitor plate; forming a second conducting layer on the second face of the dielectric layer, the second conducting layer being shaped to form a second capacitor plate, the first and second conducting layers being at least partially superposed, said first and second conducting layers and said dielectric layer forming together an oscillating circuit; and forming shorting means in the dielectric layer for enabling creation of a short-circuit between the first and second conducting layers when it is desired to activate the oscillating circuit, the shorting means being comprised of at least one throughhole passing through the dielectric layer to provide a short circuit path between the first and second conducting layers.
Claim 18
Dependent Claim
32 words
A process as in claim 15, wherein said at least one throughhole is formed in said dielectric layer prior to the forming of one of the first and second conducting layers thereon.
Claim 19
Dependent Claim
23 words
A process as in claim 15, further comprising maintaining the dielectric layer under tension during forming of the at least one throughhole therein.
Claim 20
Dependent Claim
32 words
A process as in claim 15, wherein said at least one throughhole is formed by means of a needle roll which carries at least one row of needles over the periphery thereof.
Claim 21
Dependent Claim
67 words
A process as in claim 18, wherein the needle roll contains two rows of spaced needles and the distance between needles in the same row is smaller than the size of the first and second capacitor plates in the rolling direction of the needle roll and the spacing between the two rows of needles is smaller than the size of the capacitor plates in the same direction.
Claim 22
Dependent Claim
25 words
A process as in claim 15, wherein the at least one throughhole is formed by means of a punch press having at least one needle.
Claim 23
Dependent Claim
27 words
A process as in claim 18, wherein the needles are maintained at a temperature of 290° to 350° C. during formation of the at least one throughhole.
Claim 24
Dependent Claim
32 words
A process as in claim 18, wherein the needles are maintained at a temperature in the range of 310° to 330° C. and the needles are coated with a heat resistant layer.
Claim 25
Dependent Claim
20 words
A process as in claim 15, wherein the at least one throughhole is formed by means of a laser beam.
Claim 26
Dependent Claim
25 words
A process as in claim 22, wherein said laser beam is digitally controlled and has an energy sufficient to penetrate only through the dielectric layer.
References Cited (Backward Citations)
US4598276A
Cited
US4689636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-23 | 1993-04-24 | 1993-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-23 | 1997-04-24 | 1997-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-23 | 2001-04-24 | 2001-10-24 | $7700.00 | Window Closed / Lapsed |