Patent US5602528A successfully refreshed from Google Patents.
US5602528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Theft detection marker and method
Assignee: K & M CONVERTING CORP
•
Filing: 1995-06-20
•
Granted: 1997-02-11
•
Expires: 2015-06-20
Abstract
Abstract A marker device for merchandise items has blanks of high magnetic coercivity material spaced along a strip of high magnetic permeability material. The strip and blanks are the same width, produced from three ribbons of material, one ribbon of the high coercivity material, another of the high permeability material, and a third having a pressure sensitive adhesive surface in one process embodiment, and the third being a heat activated adhesive film in another process embodiment. The strip and blanks are thereby adhesively connected. Multiple strips of the marker devices are produced simultaneously by running adhesively connected ribbons through a gang of slitter knives.
Inventors
- 👤 William J. Witchger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:39
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/16; B32B37/22; G; G08; G08B; G08B13/00; G08B13/22; G08B13/24; G08B13/2402; G08B13/2405; G08B13/2408; G08B13/2428; G08B13/2437; G08B13/244; G08B13/2442; Y; Y10; Y10S; Y10S29/00; Y10S29/04; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064; Y10T156/1084; Y10T156/1087; Y10T156/1089; Y10T156/1092; Y10T156/1097; Y10T156/1098; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49007
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
103 words
A method for producing a theft detection marker and comprising the steps of: taking a first ribbon of a material having high magnetic permiability and a second ribbon of a material having high magnetic coercivity; punching out areas of the second ribbon at spaced locations along its length to provide slots therein at spaced locations along its length; moving the two ribbons toward take-up devices and adhesively connecting portions of the second ribbon to the first ribbon; passing the connected ribbon portions through a slitting station to divide the connected ribbon portions into strips; and collecting the strips separately onto the take-up devices.
Claim 2
Independent Claim
103 words
A method for producing a theft detection marker and comprising the steps of: taking a first ribbon of a material having high magnetic permiability and a second ribbon of a material having high magnetic coercivity; punching out areas of the second ribbon at spaced locations along its length to provide slots therein at spaced locations along its length; moving the two ribbons toward take-up devices and adhesively connecting portions of the second ribbon to the first ribbon; passing the connected ribbon portions through a slitting station to divide the connected ribbon portions into strips; and collecting the strips separately onto the take-up devices.
Claim 3
Dependent Claim
23 words
The method of claim 1 further comprising the step of: applying adhesive directly to one of the ribbons before the adhesive connection step.
Claim 4
Dependent Claim
64 words
The method of claim 1 further comprising the step of: taking a third ribbon of heat activatable adhesive; moving the third ribbon between the first and second ribbons and toward the take-up devices; sandwiching the third ribbon between the first and second ribbons; and applying heat to the sandwiched ribbons before passage through the slitting station, to adhesively connect the two ribbons before slitting.
Claim 5
Dependent Claim
27 words
The method of claim 3 further comprising the step of: cooling the ribbons after adhesively connecting them and before slitting as they move toward the take-up devices.
Claim 6
Dependent Claim
60 words
The method of claim 1 further comprising the step of: taking a third ribbon of film having a pressure sensitive adhesive surface; moving the third ribbon toward the take-up devices; shearing the second ribbon periodically and depositing blanks sheared therefrom onto the third ribbon at spaced locations on the third ribbon as the ribbons are moved toward the take-up devices.
Claim 7
Dependent Claim
34 words
The method of claim 5 further comprising the step of: placing the blanks with pressure onto a pressure sensitive adhesive surface of the third ribbon as the blanks are deposited onto the third ribbon.
Claim 8
Dependent Claim
21 words
The method of claim 5 further comprising the step of: adhesively connecting the third ribbon to the first ribbon before slitting.
Claim 9
Independent Claim
142 words
A method for producing a theft detection device marker and comprising the steps of: taking a first ribbon of a material having high magnetic permeability such that when subjected to a continuous alternating magnetic interrogation field, the material will produce characteristic detectable disturbances in the field; and taking a second ribbon of a material having higher magnetic coercivity such that, when magnetized, it will effectively prevent the material of the first ribbon from responding to the alternating magnetic field; moving the two ribbons toward collectors; punching out areas of the second ribbon at spaced locations along its length to provide slots therein at spaced locations along its length; adhesively connecting portions of the second ribbon to the first ribbon; passing the connected ribbon portions through a slitting station to divide the connected ribbons into strips; and delivering the strips to the collectors.
Claim 10
Independent Claim
142 words
A method for producing a theft detection device marker and comprising the steps of: taking a first ribbon of a material having high magnetic permeability such that when subjected to a continuous alternating magnetic interrogation field, the material will produce characteristic detectable disturbances in the field; and taking a second ribbon of a material having higher magnetic coercivity such that, when magnetized, it will effectively prevent the material of the first ribbon from responding to the alternating magnetic field; moving the two ribbons toward collectors; punching out areas of the second ribbon at spaced locations along its length to provide slots therein at spaced locations along its length; adhesively connecting portions of the second ribbon to the first ribbon; passing the connected ribbon portions through a slitting station to divide the connected ribbons into strips; and delivering the strips to the collectors.
Claim 11
Dependent Claim
62 words
A theft detection marker comprising: a strip of a first material having a high magnetic permeability; a plurality of blanks of a second material having high magnetic coercivity spaced along the first material strip, the blanks having the same width as the strip; adhesive material connecting the blanks to the strip; the adhesive material extending substantially the full width of the blanks.
Claim 12
Dependent Claim
62 words
A theft detection marker comprising: a strip of a first material having a high magnetic permeability; a plurality of blanks of a second material having high magnetic coercivity spaced along the first material strip, the blanks having the same width as the strip; adhesive material connecting the blanks to the strip; the adhesive material extending substantially the full width of the blanks.
Claim 13
Dependent Claim
13 words
The marker of claim 9 and wherein: the adhesive is on a substrate.
Claim 14
Dependent Claim
19 words
The marker of claim 10 and wherein: the substrate is a plastic film, and the adhesive is pressure sensitive.
Claim 15
Dependent Claim
12 words
The marker of claim 9 wherein: the adhesive is a heat-activated film.
Claim 16
Dependent Claim
18 words
The marker of claim 9 and wherein: the adhesive material is directly contacting the strip and the blanks.
Claim 17
Dependent Claim
13 words
The marker of claim 13 and wherein: the adhesive material is a resin.
Claim 18
Dependent Claim
15 words
The marker of claim 14 and wherein: the adhesive material is a heat activated resin.
References Cited (Backward Citations)
US3765007A
Cited
US3983552A
Cited
US4222517A
Cited
US4384281A
Cited
US4382831A
Cited
US4510490A
Cited
US4510489A
Cited
US4686154A
Cited
US4652863A
Cited
US4568921A
Cited
US4660025A
Cited
US4797658A
Cited
US4743890A
Cited
US4864281A
Cited
US4682154A
Cited
US4799045A
Cited
US4717438A
Cited
US4779076A
Cited
US4945339A
Cited
US5008649A
Cited
US4849736A
Cited
US4882569A
Cited
US4935724A
Cited
US4956636A
Cited
US5368948A
Cited
US5017907A
Cited
US5240541A
Cited
US5130698A
Cited
US5146204A
Cited
US5029291A
Cited
US5083112A
Cited
US5455563A
Cited
US5121106A
Cited
US5182062A
Cited
US5304983A
Cited
US5313192A
Cited
US5432499A
Cited
US5401584A
Cited
US5495230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-11 | 2000-08-12 | 2001-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-11 | 2004-08-12 | 2005-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-11 | 2008-08-12 | 2009-02-11 | $7700.00 | Window Closed / Lapsed |