WO2000045401A1 - Vorrichtung zum schalten einer elektrischen verbindung, insbesondere scharnierschalter - Google Patents
Vorrichtung zum schalten einer elektrischen verbindung, insbesondere scharnierschalter Download PDFInfo
- Publication number
- WO2000045401A1 WO2000045401A1 PCT/EP2000/000482 EP0000482W WO0045401A1 WO 2000045401 A1 WO2000045401 A1 WO 2000045401A1 EP 0000482 W EP0000482 W EP 0000482W WO 0045401 A1 WO0045401 A1 WO 0045401A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- switching
- actuating means
- cam
- pin
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000008901 benefit Effects 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
- H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
- H01H3/162—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid associated with a hinge of the closing member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
- H01H19/60—Angularly-movable actuating part carrying no contacts
- H01H19/62—Contacts actuated by radial cams
- H01H19/623—Adjustable cams
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/32—Position control, detection or monitoring
- E05Y2400/322—Position control, detection or monitoring by using absolute position sensors
- E05Y2400/324—Switches
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/32—Position control, detection or monitoring
- E05Y2400/322—Position control, detection or monitoring by using absolute position sensors
- E05Y2400/326—Position control, detection or monitoring by using absolute position sensors of the angular type
Definitions
- the invention relates to a device for switching an electrical connection, in particular a hinge switch, according to the preamble of claim 1.
- a generic device is known from WO 93/24946.
- a multi-part cam disk is arranged coaxially with the latter as the actuating means, on the circumferential surface of which a switching means in the form of a switching plunger which switches the electrical connection when a switching point is exceeded.
- the total of three parts of the cam disc are adjusted and fixed in the direction of rotation of the shaft when the device is assembled. Using their assigned switching edges on the circumferential surface of the cam disc, they define the position and the extent of a switching notch for the switching plunger.
- the multi-part cam disk used in the known device requires a high outlay in the production and in particular in the assembly of such devices. An adjustment of the switching point after assembly is not possible, rather the device must be completely disassembled for a new adjustment of the switching point and several fixing screws loosened and tightened again after the new adjustment.
- DE-AS 10 91 187 shows a rotary switch with cam disks, which are each detachably fixed to the selector shaft by means of a fastening screw.
- the fastening screw can be inserted into a through hole in the selector shaft and into a
- Threaded hole of the cam disc can be screwed in.
- the position of the cam disk in relation to the selector shaft cannot be adjusted in the radial or axial direction or in the circumferential direction.
- DE-OS 21 45 1 15 shows a lever switch with a
- the switching means or the switching plunger is composed of an actuator sleeve and a switch pin which can be screwed together, as a result of which the effective length of the switching plunger and thus the switching point can be set.
- US 403,169 shows a cam of a non-generic mechanical control device.
- a socket element that can be connected to a shaft can be releasably fixed to the cam in several discrete positions. The discrete positions are invariably specified by interacting teeth on both the bushing element and the cam.
- the problem underlying the present invention is to provide a device according to the preamble of claim 1 which is simple and permanently precise setting and adjustment of the switching point is guaranteed with relatively little design effort.
- the switching of the electrical connection comprises the opening and / or closing of at least one pair of contacts.
- the shaft can be designed so that it can be pivoted back and forth as well as can be rotated through full revolutions.
- the switching means can be in contact with the actuating means, for example with respect to the shaft, in the radial or axial direction.
- the radial and / or axial displacement of the actuating means with respect to the shaft which is easy to carry out, ensures permanent precise setting and adjustment of the switching point.
- the typical switching point is when the shaft rotates about 3 °.
- the switching means preferably has a longitudinal axis which forms an angle of 90 ° with the shaft.
- the longitudinal axis of the switching means and the axis of the shaft preferably intersect.
- the actuating means is preferably formed in one piece.
- the adjusting means is preferably in threaded, clamped or snap-in connection with the shaft.
- the special embodiment according to claim 2 offers the advantage that the position of the actuating means in relation to the shaft can be changed by simply turning the threaded pin, and the switching point can thereby be set simply and precisely.
- the set screw serves due to its fixed arrangement in relation to the actuating means of coupling the rotary movement of the shaft to the actuating means.
- Such setscrews are often also referred to as "grub screws”.
- the special embodiment according to claim 3 has the advantage that when the grub screw is screwed into the shaft, the actuating means can, for example, be simply pushed onto or plugged onto the shaft during assembly of the device, the grub screw being insertable into the receptacle at least partially in a form-fitting manner.
- the setscrew preferably has at both ends a threadless, pin-like section which can be inserted into the corresponding receptacle.
- the special embodiment according to claim 4 has the advantage that the actuating means is fixed simply and reliably in its axial position on the shaft. If the actuating means can be displaced in the axial direction by means of the adjusting means with respect to the shaft, the shaft securing ring serves as a stop for the axial movement of the actuating means and can optionally also have a resetting force for the actuating means which applies an elastic element, for example a Coil spring, be supplemented.
- an elastic element for example a Coil spring
- the special embodiment according to claim 5 has the advantage that even small switching angles can be permanently precisely adjusted. Due to the contact on the peripheral surface, the switching means is moved in the direction of contact when the shaft is rotated and when the section is swept. Alternatively and / or in addition to the notch can the peripheral surface also have one or more cams. As an alternative to using a cam, a single-arm or multi-arm lever that interacts with the switching means can also be used.
- the special embodiment according to claim 6 has the advantage that the adjusting means does not come into contact with the switching means and in particular full revolutions of the shaft are possible because the adjusting means axially relative to the peripheral surface and in particular with respect to the contact of the switching means on the peripheral surface of the cam is staggered.
- the special embodiment according to claim 7 has the advantage that the dimensioning of the longer edge of the rectangle makes it easy to specify the setting range for the actuating means.
- the shaft preferably has a smaller diameter in the area of the actuating means than outside the device.
- the shaft can be provided in the area of the actuating means with one or with two diametrically opposed, parallel surfaces, the distance of which corresponds to the length of the shorter edge of the rectangle, thereby ensuring an even more precise guidance of the actuating means in the radial direction with respect to the shaft.
- the special embodiment according to claim 8 has the advantage that reliable switching by a preferably axial movement of the plunger is ensured with such a structurally simple solution. In addition, a spatial separation of the mechanical and electrical components is achieved.
- the special embodiment according to claim 9 has the advantage that an adjustment or readjustment of the switching point is also possible after assembly of the device or, for example, as part of maintenance and repair work.
- the special embodiment according to claim 10 has the advantage that a simple mechanical coupling to, for example, a protective device of a machine tool to be monitored is possible.
- the device can be fixed, for example, to a housing of the protective device or to the machine tool itself, whereas the shaft is connected to the articulated rod or the hinge pin of a protective door or protective hood hinged to the housing, for example by means of a connecting sleeve.
- Fig. 1 shows the cross section through an inventive
- FIG. 2 shows a modification of the switch head of FIG. 1
- FIG. 3A shows a section along III-III of the device of FIG. 1
- FIG. 3B shows the arrangement of FIG. 3a with a deflection of the shaft by approximately 10 °
- Fig. 1 shows the cross section through a device according to the invention in the form of a hinge switch 1 with a shaft 3 rotatable about a shaft axis 2 and connected from outside the device with an articulated rod or a hinge pin and an actuating means arranged thereon in the form of a cam plate 4 interacts with a switching means which switches the electrical connection when a switching point is exceeded in the form of a switching plunger 6 which can be moved along a plunger axis 5.
- the cam 4 is by means of the serving as an adjusting means
- the threaded pin 7 can be displaced in the radial direction with respect to the shaft 3 in such a way that the switching point can be set to a predeterminable angular position of the shaft 3.
- the threaded pin 7 is arranged by means of its end-side, pin-like sections, one of which has a slot 8 for the engagement of a tool, in particular a screwdriver, in a fixed position with respect to the cam disk 4, in particular in a receptacle of the cam disk 4 which is form-fitting with the end sections inserted.
- the receptacle can be adapted to the cylindrical shape of the threaded pin 7 such that it engages in the receptacle.
- the setscrew 7 has an external thread 9 between the two end sections, with which it can be screwed into a threaded bore of the shaft 3.
- the cam disc 4 has at its first axial end a circular or part-circular projection 10 with which it is on a first
- Housing part 1 1 of the cam disk 4 receiving head housing 1 1, 14 supports. At the opposite axial end, the cam disc 4 is supported on a shaft retaining ring 13 inserted in an annular groove 12 that is circumferentially introduced into the shaft 3. Due to the interaction of the projection 10, which is preferably formed in one piece with the cam disk 4 and the first housing part 11 of the head housing 11, 14 and the cam disk 4 with the shaft locking ring 13, the cam disk 4 is in its axial position in relation to the shaft 3 in the exemplary embodiment shown fixed.
- the shaft 3 has two sections 15a, 15b which are reduced in diameter and offset from one another, the end section 15b of the shaft 3 opening into an opening in a second housing part which can be folded down or removed with respect to the first housing part 115 14 of the head housing 1 1, 14 protrudes so that the end section 15b and thus the shaft 3 can be rotated from outside the hinge switch 1 by means of a tool, for example a screwdriver or a hexagon wrench, in order to check the electrical switching function and / or the switching point in Set the dependence of the angle of rotation.
- the first housing part 11 has, at the location of the exit of the shaft 3, preferably in one piece a projection 16 which receives the diameter-reduced first section 15a of the shaft 3 and forms a stop for the shaft 3 in the direction of the head housing 11, 14 .
- the head housing 11, 14 can be fixed to a switch housing 17 comprising the switching plunger 6, preferably using a sealant (not shown) to prevent the ingress of contaminants and / or moisture.
- the switching plunger 6 carries a total of four electrical contacts 18a, 18b, 18c, 18d on a contact carrier plate 18, which when the switching plunger 6 is displaced parallel to the plunger axis 5, each with opposite and fixed to the switch housing 17 Contacts 19a, 19b, 19c, 19d interact and switch the electrical connection, in particular open the electrical connections between the contact elements 18a and 19a or 18b and 19b and close the electrical connections between the contact elements 18c and 19c or 18d and 19d.
- the switching plunger 6 is held by means of a force accumulator or elastic element, in the present exemplary embodiment by means of a helical spring 20 which is supported on the switch housing 17, and is preloaded in the direction of the cam plate 4.
- the head housing 1 1, 14 can be fixed in different angular positions with respect to the plunger axis 5 on the switch housing 17.
- Fig. 2 shows a modification of the switch head of Fig. 1, in which the cam plate 4 shown in the view in a radially offset and smaller diameter section 4a two, with respect to the shaft axis 2 and the plunger axis 5 in
- Embodiment defined plane symmetrically opposite and secant-shaped mounting grooves 21 in which engages in particular when mounting the switch head, an assembly tool.
- the two mounting grooves 21 such a groove or a plurality of corresponding bores can also be provided.
- the second housing part 14 of the head housing 11, 14 has an opening, which can be closed by means of a preferably elastically sealing cover 22, for the passage of a tool for actuating the threaded pin 7 and thus for setting the cam plate 4 or the switching point.
- FIG. 3A shows a section along III-III of the device of FIG. 1.
- the slot 8 of the threaded pin 7 is via the recess 23 from outside the cam 4 and optionally also from outside the Head housing 1 1, 14 accessible and has the external thread 9 essentially only in the region of its section interacting with the end section 15 b of the shaft 3.
- the grub screw 7 can be inserted in an axial direction into a receptacle in the cam plate 4, which in particular has a correspondingly form-fitting end section, as a result of which the cam plate is fixed on the shaft 3 with respect to the direction of rotation thereof.
- the cam plate 4 has a preferably central rectangular opening, the length of the shorter side 26 corresponding to the diameter of the end section 15b of the shaft 3 and the length of the longer side 27 limiting the setting range for the cam plate 4.
- the circumferential surface 24 of the cam disc 4 has a notch-like incision 25 facing the switching plunger 6 in the starting position shown, and has two flanks 25 inclined to a bottom surface inclining the plunger axis 5 at right angles, into which it has a rounded, preferably hemispherical, end section due to its pretension in the direction of the cam plate 4.
- FIG. 3B shows the arrangement of FIG. 3A when the shaft 3 is deflected by approximately 10 ° counterclockwise. Due to the positive connection of the threaded pin 7, which is screwed to the shaft 3 or its end section 15b, and the cam plate 4, this also rotates by the corresponding angular amount, and the switching plunger 6 is moved away from the cam plate 4 along the plunger axis 5 against its spring preload and thereby switches the electrical connection. While the stroke is largely determined by the shape and the dimension of the incision 25, the switching point for a given incision 25 can be made precisely and permanently by adjusting the position of the cam plate 4 in relation to the shaft 3 by means of the threaded pin 7. Of course you can too a plurality of incisions 25 may be distributed over the circumferential surface 24 at regular or irregular intervals. Incisions 25 and cams can also alternate in any combination and with different depths or heights distributed over the circumferential surface 24.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Steering Controls (AREA)
- Pivots And Pivotal Connections (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Mechanisms For Operating Contacts (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00903611A EP1151448B1 (de) | 1999-01-26 | 2000-01-22 | Vorrichtung zum schalten einer elektrischen verbindung, insbesondere scharnierschalter |
JP2000596577A JP2002536784A (ja) | 1999-01-26 | 2000-01-22 | 電気的な接続を切り換えるための装置、特にヒンジスイッチ |
AT00903611T ATE231282T1 (de) | 1999-01-26 | 2000-01-22 | Vorrichtung zum schalten einer elektrischen verbindung, insbesondere scharnierschalter |
US09/869,857 US6548774B1 (en) | 1999-01-26 | 2000-01-22 | Device for switching an electric connection, especially in a hinge switch |
DE50001092T DE50001092D1 (de) | 1999-01-26 | 2000-01-22 | Vorrichtung zum schalten einer elektrischen verbindung, insbesondere scharnierschalter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19902919A DE19902919A1 (de) | 1999-01-26 | 1999-01-26 | Vorrichtung zum Schalten einer elektrischen Verbindung, insbesondere Scharnierschalter |
DE19902919.9 | 1999-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000045401A1 true WO2000045401A1 (de) | 2000-08-03 |
Family
ID=7895360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/000482 WO2000045401A1 (de) | 1999-01-26 | 2000-01-22 | Vorrichtung zum schalten einer elektrischen verbindung, insbesondere scharnierschalter |
Country Status (7)
Country | Link |
---|---|
US (1) | US6548774B1 (de) |
EP (1) | EP1151448B1 (de) |
JP (1) | JP2002536784A (de) |
AT (1) | ATE231282T1 (de) |
DE (2) | DE19902919A1 (de) |
ES (1) | ES2190946T3 (de) |
WO (1) | WO2000045401A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2472371A (en) * | 2009-04-24 | 2011-02-09 | Selectamark Security Systems Plc | Synthetic nucleotide containing compositions for use in security marking |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20103850U1 (de) * | 2001-03-06 | 2001-06-13 | Bernstein Ag | Schaltscharnier |
DE10348884A1 (de) * | 2003-10-14 | 2005-05-25 | Pilz Gmbh & Co. Kg | Sicherheitsschalter, insbesondere Not-Aus-Schalter, zum sicheren Abschalten eines gefahrbringenden Gerätes |
US7232965B2 (en) * | 2004-03-19 | 2007-06-19 | Square D Company | Linear motion compensator |
TWI273375B (en) * | 2005-07-12 | 2007-02-11 | Asustek Comp Inc | Electrical device with a rotary knob |
DE102005046082A1 (de) * | 2005-09-26 | 2007-04-12 | Bernstein Ag | Schaltscharnier |
TWM289961U (en) * | 2005-10-28 | 2006-04-21 | Jarllytec Co Ltd | Rotational shaft structure having automatic reciprocation and rotation |
US8220202B2 (en) * | 2008-11-13 | 2012-07-17 | James W Riley | Hinge pin mounted door switch |
US11131132B2 (en) * | 2017-09-28 | 2021-09-28 | Ergomat, Inc. | Gate supportive, signal transmitting hinge |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4049934A (en) * | 1976-07-30 | 1977-09-20 | Lawrence Brothers Inc. | Security hinge having adjustable cam operator and reciprocable cam follower actuated switch |
GB2150757A (en) * | 1983-11-21 | 1985-07-03 | Cheng Chao An | Combined hinge and electric switch assembly |
EP0304241A2 (de) * | 1987-08-15 | 1989-02-22 | John Leon Brown | Scharnierschaltervorrichtung |
US4922064A (en) * | 1989-03-08 | 1990-05-01 | Adtec Incorporated | Door position indicator |
WO1993024946A1 (en) * | 1992-06-02 | 1993-12-09 | E.J.A. Engineering Plc | Switch actuator |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US403169A (en) * | 1889-05-14 | Island | ||
CH310052A (de) * | 1953-03-30 | 1955-09-30 | Hasler Ag | Drehschalter. |
DE2145115C3 (de) * | 1971-09-09 | 1974-05-22 | Honeywell Gmbh, 6000 Frankfurt | Endschalter mit einem auf eine Schnappvorrichtung einwirkenden Übertragungsglied |
US4100581A (en) * | 1976-09-30 | 1978-07-11 | Slack Donald J | Door actuated message device |
IT1238322B (it) * | 1990-01-19 | 1993-07-12 | Bremas Spa | Punteria in particolare per la cooperazione con alberi a camme in commutatori elettrici, interruttori o similari |
DE19609973A1 (de) * | 1996-03-14 | 1997-09-18 | Teves Gmbh Alfred | Antriebsvorrichtung für Scheibenwischer mit einem Parkstellungsschalter |
-
1999
- 1999-01-26 DE DE19902919A patent/DE19902919A1/de not_active Withdrawn
-
2000
- 2000-01-22 AT AT00903611T patent/ATE231282T1/de not_active IP Right Cessation
- 2000-01-22 EP EP00903611A patent/EP1151448B1/de not_active Expired - Lifetime
- 2000-01-22 US US09/869,857 patent/US6548774B1/en not_active Expired - Fee Related
- 2000-01-22 WO PCT/EP2000/000482 patent/WO2000045401A1/de active IP Right Grant
- 2000-01-22 DE DE50001092T patent/DE50001092D1/de not_active Expired - Lifetime
- 2000-01-22 ES ES00903611T patent/ES2190946T3/es not_active Expired - Lifetime
- 2000-01-22 JP JP2000596577A patent/JP2002536784A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4049934A (en) * | 1976-07-30 | 1977-09-20 | Lawrence Brothers Inc. | Security hinge having adjustable cam operator and reciprocable cam follower actuated switch |
GB2150757A (en) * | 1983-11-21 | 1985-07-03 | Cheng Chao An | Combined hinge and electric switch assembly |
EP0304241A2 (de) * | 1987-08-15 | 1989-02-22 | John Leon Brown | Scharnierschaltervorrichtung |
US4922064A (en) * | 1989-03-08 | 1990-05-01 | Adtec Incorporated | Door position indicator |
WO1993024946A1 (en) * | 1992-06-02 | 1993-12-09 | E.J.A. Engineering Plc | Switch actuator |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2472371A (en) * | 2009-04-24 | 2011-02-09 | Selectamark Security Systems Plc | Synthetic nucleotide containing compositions for use in security marking |
GB2472371B (en) * | 2009-04-24 | 2011-10-26 | Selectamark Security Systems Plc | Synthetic nucleotide containing compositions for use in security marking of property and/or for marking a thief or attacker |
US10472676B2 (en) | 2009-04-24 | 2019-11-12 | Selectamark Security Systems Plc | Compositions for use in security marking |
Also Published As
Publication number | Publication date |
---|---|
ES2190946T3 (es) | 2003-09-01 |
JP2002536784A (ja) | 2002-10-29 |
EP1151448A1 (de) | 2001-11-07 |
DE19902919A1 (de) | 2000-08-10 |
EP1151448B1 (de) | 2003-01-15 |
DE50001092D1 (de) | 2003-02-20 |
ATE231282T1 (de) | 2003-02-15 |
US6548774B1 (en) | 2003-04-15 |
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