EP0247966A2 - Cylinder lock and key - Google Patents
Cylinder lock and key Download PDFInfo
- Publication number
- EP0247966A2 EP0247966A2 EP87730061A EP87730061A EP0247966A2 EP 0247966 A2 EP0247966 A2 EP 0247966A2 EP 87730061 A EP87730061 A EP 87730061A EP 87730061 A EP87730061 A EP 87730061A EP 0247966 A2 EP0247966 A2 EP 0247966A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- cylinder
- energy supply
- shape memory
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/18—Keys adjustable before use
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
- E05B51/005—Operating or controlling locks or other fastening devices by other non-mechanical means by a bimetallic or memory-shape element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/7486—Single key
- Y10T70/7508—Tumbler type
- Y10T70/7559—Cylinder type
- Y10T70/7565—Plural tumbler sets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
- Y10T70/7842—Single shank or stem
- Y10T70/787—Irregular nonplanar or undulated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
- Y10T70/7881—Bitting
Definitions
- the invention relates to a lock cylinder with key according to the preamble of claim 1.
- a locking cylinder with a key in which on the side surface or on the side surfaces of the flat key, there are provided additional longitudinal ribs which cooperate with additional locking pins, i.e. can be scanned by them.
- a comparison in the joint between the cylinder core and the cylinder housing then enables the cylinder core to be turned further, that is to say the lock is actuated.
- certain metals or metal alloys have a so-called shape memory, ie can take on a changed shape regardless of their current shape if they receive an energy supply, for example in the form of heat.
- the shape memory in this case can consist in the fact that these metals or metal alloys assume a different shape compared to the shape in the cold state.
- a thermal switch operating on this principle is known from DE-GM 79 00 875.
- NiTi NiTi
- the invention is based on the object, using the shape memory of such metals or metal alloys, to increase the possible variations in a locking cylinder and key and thus also to increase the reliability of such an arrangement.
- the particular advantage of the invention can be seen in the fact that the key cannot be seen in any way as to what height is necessary for the longitudinal rib or the longitudinal rib sections which is outstanding over the side surface or side surfaces, in order to achieve a balance between the locking pins and the joint between the cylinder core and the cylinder housing to produce because the height that the corresponding rib or the rib sections have in the cold state is not identical to the height that is subsequently required.
- the necessary amount cannot be determined by trial and error, for example by heating the key, because the energy supply that is necessary to achieve a specific change or a specific response to the shape memory cannot be applied in a targeted manner in this way.
- the flat key itself or the part of the flat key is denoted by 1 and the key ring is indicated by 4.
- Longitudinal ribs or rib sections 2 and 3 protrude beyond the side surfaces of the flat key, the rib height indicated here by dash-dotted lines which they have when the key is cold.
- the continuous line of the rib indicates the state it is in when it is supplied with energy, whether from the outside, that is to say from the lock part or from the key itself, the shape memory of the metal or metal alloy from which the ribs exist, is addressed.
- the locking pins are designated 5 and the parting line with the reference number 6. This parting line lies between the cylinder core 7 and the cylinder housing 8.
Landscapes
- Lock And Its Accessories (AREA)
- Switches With Compound Operations (AREA)
Abstract
Description
Die Erfindung betrifft einen Schließzylinder mit Schlüssel gemäß dem Oberbegriff des Anspruches 1.The invention relates to a lock cylinder with key according to the preamble of claim 1.
Aus der DE-PS 24 11 362 ist bspw. ein Schließzylinder mit Schlüssel bekannt, bei dem an der Seitenfläche bzw. an den Seitenflächen des Flachschlüssels über diese herausragende Zusatzlängsrippen vorgesehen sind, die mit Zusatzsperrstiften zusammenwirken, d.h. von diesen abgetastet werden. Ein Abgleich in der Trennfuge zwischen Zylinderkern und Zylindergehäuse ermöglicht dann ein Weiterdrehen des Zylinderkernes, also ein Betätigen des Schlosses.From DE-PS 24 11 362, for example, a locking cylinder with a key is known, in which on the side surface or on the side surfaces of the flat key, there are provided additional longitudinal ribs which cooperate with additional locking pins, i.e. can be scanned by them. A comparison in the joint between the cylinder core and the cylinder housing then enables the cylinder core to be turned further, that is to say the lock is actuated.
Aus der EP-PS 00 29 498 ist es ferner bekannt, daß die Höhe eines der Abtastung unterliegenden Profiles oder Teilprofiles erst durch den eingeschobenen Schlüssel bestimmt wird, und zwar geschieht dies hierbei durch eine in einer Bohrung des Schlüsselschaftes radial verschiebbar gelagerte Kugel.From EP-PS 00 29 498 it is also known that the height of a profile or partial profile subject to the scanning is determined only by the inserted key, and this is done here by a ball which is radially displaceably mounted in a bore in the key shaft.
Unabhängig ist es davon bekannt, daß bestimmte Metalle bzw. Metallegierungen über ein sogenanntes Formgedächtnis verfügen, d.h. unabhängig von ihrer augenblicklichen Form eine veränderte Form einnehmen können, wenn sie eine Energiezufuhr, bspw. in Form von Wärme, erhalten. Das Formgedächtnis kann in diesem Fall darin bestehen, daß diese Metalle oder Metallegierungen eine absweichende Form, verglichen mit der Form im kalten Zustand, einnehmen.
So ist beispielsweise ein nach diesem Prinzip arbeitender Thermoschalter aus dem DE-GM 79 00 875 bekannt.Regardless, it is known that certain metals or metal alloys have a so-called shape memory, ie can take on a changed shape regardless of their current shape if they receive an energy supply, for example in the form of heat. The shape memory in this case can consist in the fact that these metals or metal alloys assume a different shape compared to the shape in the cold state.
For example, a thermal switch operating on this principle is known from DE-GM 79 00 875.
Daß sog. Memory-Legierungen wie NiTi für Druck-, Zug-, Biege- oder Torsionselemente anwendbar sind, ist aus der Praxis bekannt.It is known from practice that so-called memory alloys such as NiTi can be used for pressure, tension, bending or torsion elements.
Der Erfindung liegt die Aufgabe zugrunde, unter Ausnutzung des Formgedächtnisses derartiger Metalle oder Metallegierungen die Variationsmöglichkeiten bei einem Schließzylinder und Schlüssel und damit auch die Abtastsicherheit einer derartigen Anordnung zu erhöhen.The invention is based on the object, using the shape memory of such metals or metal alloys, to increase the possible variations in a locking cylinder and key and thus also to increase the reliability of such an arrangement.
Gelöst wird diese Aufgabe erfindungsgemäß mit den Merkmalen im Kennzeichen des Anspruchs 1.This object is achieved according to the invention with the features in the characterizing part of claim 1.
Aus den Ansprüchen 2 bis 6 ergeben sich vorteilhafte Weiterbildungen.Advantageous further developments result from
Der besondere Vorteil der Erfindung ist darin zu sehen, daß dem Schlüssel in keiner Weise anzusehen ist, welche Höhe für die über die Seitenfläche bzw. Seitenflächen hervorragende Längsrippe oder die Längsrippenabschnitte notwendig ist, um einen Abgleich zwischen den Sperrstiften und der Trennfuge zwischen Zylinderkern und Zylindergehäuse herzustellen, weil die Höhe, die die entsprechende Rippe oder die Rippenabschnitte im kalten Zustand aufweisen, nicht mit der Höhe identisch ist, die nachher benötigt wird. Andererseits kann man auch durch Probieren, also bspw. durch Erwärmen des Schlüssels, die notwendige Höhe nicht bestimmen, weil die Energiezufuhr, die zur Erreichung einer bestimmten Änderung bzw. eines bestimmten Ansprechens des Formgedächtnisses notwendig ist, auf diese Weise nicht gezielt aufgebracht werden kann.The particular advantage of the invention can be seen in the fact that the key cannot be seen in any way as to what height is necessary for the longitudinal rib or the longitudinal rib sections which is outstanding over the side surface or side surfaces, in order to achieve a balance between the locking pins and the joint between the cylinder core and the cylinder housing to produce because the height that the corresponding rib or the rib sections have in the cold state is not identical to the height that is subsequently required. On the other hand, the necessary amount cannot be determined by trial and error, for example by heating the key, because the energy supply that is necessary to achieve a specific change or a specific response to the shape memory cannot be applied in a targeted manner in this way.
Auf diese Weise läßt sich die Sicherheit eines derartigen Schlosses weiter erhöhen, und darüber hinaus bietet sich die Möglichkeit, quasi eine weitere Dimension für die Profilformen bei der Herstellung der Schlüssel zu berücksichtigen.In this way, the security of such a lock can be increased further, and there is also the possibility of taking into account a further dimension for the profile shapes when producing the keys.
Die Erfindung soll nachfolgend schematisch erläutert werden, wobei die Figur eine skizzierte Aufsicht auf den Rücken eines Flachschlüssels zeigt mit angedeuteten Sperrstiften sowie der angedeuteten Trennfuge zwischen Zylinderkern und Zylindergehäuse.The invention will be explained schematically below, the figure showing a sketched view of the back of a flat key with indicated Locking pins and the indicated joint between the cylinder core and the cylinder housing.
In dem dargestellten Beispiel ist der Flachschlüssel selbst bzw. der Teil des Flachschlüssels mit 1 bezeichnet und die Schlüsselreide mit 4 angedeutet. Über die Seitenflächen des Flachschlüssels hinaus ragen Längsrippen bzw. -rippenabschnitte 2 und 3, wobei hier strichpunktiert die Rippenhöhe angedeutet ist, die diese im kalten Zustand des Schlüssels aufweisen. Die durchgehende Linie der Rippe deutet den Zustand an, den diese einnimmt, wenn durch eine Energiezufuhr, sei es von außen, d.h. bspw. aus dem Schloßteil oder aber vom Schlüssel selbst, das Formgedächtnis des Metalls bzw. der Metallegierung, aus dem (der) die Rippen bestehen, angesprochen wird.
In der Figur sind die Sperrstifte mit 5 bezeichnet und die Trennfuge mit dem Bezugszeichen 6. Diese Trennfuge liegt zwischen dem Zylinderkern 7 und dem Zylindergehäuse 8.
Wie sich aus dieser Skizze ergibt, ist ein Weiterdrehen des Zylinderkernes, der einen Abgleich der Sperrstifte 5 mit der Trennfuge 6 voraussetzt, nur dann möglich, wenn die Rippen 2 und 3 eine bestimmte Höhe eingenommen haben, und diese Höhe entspricht der Änderung durch das Formgedächtnis. Im kalten Zustand würden die Sperrstifte die strichpunktierte Linie der Rippen berühren, und damit wäre es möglich, daß nach einer anfänglichen Drehung ein Zuhaltestift, der mit 9 lediglich angedeutet ist, in die entsprechende Bohrung der Sperrstifte einfällt und damit eine Weiterdrehung verhindert, die andererseits nur bei passendem Schlüssel möglich wäre, also dann, wenn die Rippe ihre Form angenommen hat, die durch die durchgehende Linie skizziert ist.In the example shown, the flat key itself or the part of the flat key is denoted by 1 and the key ring is indicated by 4. Longitudinal ribs or
In the figure, the locking pins are designated 5 and the parting line with the
As can be seen from this sketch, a further rotation of the cylinder core, which requires a comparison of the
Aus den Ansprüchen ergibt sich, daß die Energiezufuhr möglich ist durch eine Energiequelle im Schloßteil, wie aber auch im Schlüssel selbst, wobei sich hier die Schlüsselreide für die Aufnahme der Energiequelle eignen würde.It follows from the claims that the supply of energy is possible by an energy source in the lock part, but also in the key itself, the key bow being suitable for receiving the energy source.
Besonders vorteilhaft ist es auch, eine derartige Ausbildung in Verbindung mit elektronischen Schlössern zu benutzen, die ohnehin eine Energiezufuhr zur Sende- bzw. Empfangseinheit benötigen und damit noch über eine entsprechende Schaltung ergänzt werden können, die einerseits bei passender Kodierung erst die Energiezufuhr auslöst und andererseits durch diese Auslösung erst das Formgedächtnis des Materials der Rippe anspricht, so daß dann im Zusammenwirken mit der elektronischen Kodierung die "mechanische" Kodierung ausnutzbar ist und erst dann die Möglichkeit für eine Betätigung des Schlosses, d.h. ein Öffnen, liefert. It is also particularly advantageous to use such a design in conjunction with electronic locks, which in any case require an energy supply to the transmitting or receiving unit and can therefore be supplemented by a corresponding circuit which, on the one hand, triggers the energy supply if the coding is suitable, and on the other hand this release only triggers the shape memory of the material of the rib, so that the "mechanical" coding can then be used in cooperation with the electronic coding and only then the possibility of actuating the lock, ie an opening delivers.
Claims (6)
dadurch gekennzeichnet,
daß die die Steuerflächen (2, 3) bildenden Teile des Schlüssels (1) aus einem (einer) ein Formgedächtnis aufweisenden Metall/Metallegierung bestehen und daß die zum Abgleich notwendige Höhe der Steuerflächen (2, 3) durch eine das Formgedächtnis ansprechende Energiezufuhr erzeugbar ist.1.Locking cylinder with key, in which additional locking pins are arranged in the cylinder core of the locking cylinder, scan the control surfaces of the key and which, with a suitable key, have their end facing away from the key channel and are located in the joint between the cylinder core and the cylinder housing,
characterized by
that the parts of the key (1) forming the control surfaces (2, 3) consist of a metal / metal alloy that has a shape memory and that the height of the control surfaces (2, 3) required for adjustment can be generated by an energy supply that responds to the shape memory .
dadurch gekennzeichnet,
daß der Schlüssel als Flachschlüssel ausgebildet ist und wenigstens eine über die Seitenfläche(n) des Flachschlüssels herausragende Längsrippe oder einen Längsrippenabschnitt aus einem (einer) ein Formgedächtnis aufweisenden Metall/Metallegierung vorgesehen ist.2. Lock cylinder with key according to claim 1,
characterized by
that the key is designed as a flat key and at least one longitudinal rib protruding beyond the side surface (s) of the flat key or a longitudinal rib section made of a metal / metal alloy having a shape memory is provided.
dadurch gekennzeichnet,
daß bei mehreren Längsrippen oder -rippenabschnitten diese aus ein unterschiedliches Formgedächtnis aufweisenden Metallen (Metallegierungen) bestehen.3. lock cylinder with key according to claim 1 or 2,
characterized by
that in the case of several longitudinal ribs or rib sections, these consist of metals having a different shape memory (metal alloys).
dadurch gekennzeichnet,
daß im Zylinderkern ein Mikroschalter angeordnet ist, der bei eingeschobenem Schlüssel (1) die Energiezufuhr auslöst.4. Lock cylinder with key according to one of claims 1 to 3,
characterized by
that a microswitch is arranged in the cylinder core, which triggers the energy supply when the key (1) is inserted.
dadurch gekennzeichnet,
daß die die Energiezufuhr bewirkende Energiequelle in der Schlüsselreide (4) angeordnet ist und daß die Energiezufuhr durch Berührung des in den Zylinderkern eingeschobenen Schlüssels mit dem Zylinderkern erfolgt.5. Lock cylinder with key according to one of claims 1 to 3,
characterized by
that the energy source causing the energy supply is arranged in the key chalk (4) and that the energy supply takes place by touching the key inserted into the cylinder core with the cylinder core.
da durch gekennzeichnet,
daß die Energiezufuhr durch eine am Zylindergehäuse und im Schlüssel angeordnete Sende- und Empfangseinheit aufbringbar ist.6. Lock cylinder with key according to one of claims 1 to 3,
characterized by
that the energy supply can be applied by a transmitter and receiver unit arranged on the cylinder housing and in the key.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87730061T ATE47613T1 (en) | 1986-05-29 | 1987-05-27 | LOCKING CYLINDER WITH KEY. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3618074A DE3618074C1 (en) | 1986-05-29 | 1986-05-29 | Lock cylinder with key |
DE3618074 | 1986-05-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0247966A2 true EP0247966A2 (en) | 1987-12-02 |
EP0247966A3 EP0247966A3 (en) | 1988-05-11 |
EP0247966B1 EP0247966B1 (en) | 1989-10-25 |
Family
ID=6301872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87730061A Expired EP0247966B1 (en) | 1986-05-29 | 1987-05-27 | Cylinder lock and key |
Country Status (4)
Country | Link |
---|---|
US (1) | US4869085A (en) |
EP (1) | EP0247966B1 (en) |
AT (1) | ATE47613T1 (en) |
DE (1) | DE3618074C1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3272973A1 (en) * | 2016-07-18 | 2018-01-24 | BAE SYSTEMS plc | A lock for a tamper-resistant assembly |
WO2018015714A1 (en) * | 2016-07-18 | 2018-01-25 | Bae Systems Plc | A lock for a tamper resistant assembly |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2138488B1 (en) * | 1996-04-18 | 2000-05-16 | Talleres Escoriaza Sa | IRREPRODUCIBLE KEY SYSTEM AND COMBINATION CYLINDER FOR THE SAME. |
US5819567A (en) * | 1996-07-19 | 1998-10-13 | International Security Products, Inc. | Lock system with key trapping |
US5823030A (en) * | 1997-01-29 | 1998-10-20 | International Security Products, Inc. | Cylinder lock system |
US7690231B1 (en) * | 1997-02-14 | 2010-04-06 | Medeco Security Lock, Inc. | Electromechanical cylinder lock |
US6119496A (en) * | 1998-10-07 | 2000-09-19 | International Security Products, Inc. | Keys for high security cylinder lock systems |
DE102004052930B3 (en) * | 2004-10-29 | 2006-03-30 | Bks Gmbh | Patent security key has two surfaces defining the encompassing planes for making of copies and irreversible crushable detection projection to distinguish safety key from unreliable copies |
US20070119218A1 (en) * | 2005-10-28 | 2007-05-31 | Searete Llc | Adaptive engaging assembly |
US7469538B2 (en) * | 2005-10-28 | 2008-12-30 | Searete Llc | Self assembling/quick assembly structure using shape memory alloy materials |
US8820129B2 (en) * | 2011-10-12 | 2014-09-02 | Moshe Dolev | Cylinder lock assembly with non-rotating elements |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2411362C3 (en) * | 1974-03-09 | 1979-06-28 | Zeiss Ikon Ag, 7000 Stuttgart | Locking device, consisting of a rotary cylinder lock and associated flat key |
DE7900875U1 (en) * | 1981-10-22 | BBC AG Brown, Boveri & Cie., 5401 Baden, Aargau | Thermal switch | |
EP0029498B1 (en) * | 1979-11-24 | 1982-10-20 | DOM-Sicherheitstechnik GmbH & Co. KG | Cylinder lock with flat key |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE354058C (en) * | 1922-06-01 | Friedrich Weise | Key with one-sided resilient double bit and associated lock | |
US2116246A (en) * | 1934-06-20 | 1938-05-03 | Macdonald Robert | Lock and switch device |
US2105304A (en) * | 1937-02-20 | 1938-01-11 | Clementine De Giuli | Electric lock |
US2763027A (en) * | 1955-07-29 | 1956-09-18 | Melvin L Tampke | Impression type lock decoder |
US2888817A (en) * | 1956-02-20 | 1959-06-02 | David B Buck | Pressure and magnetic key blank for locks |
US3022408A (en) * | 1960-10-25 | 1962-02-20 | Robert W Wagner | Electrically heated key |
US3541818A (en) * | 1968-07-05 | 1970-11-24 | Eugene Dana | Key |
US3668909A (en) * | 1970-05-28 | 1972-06-13 | Locking Systems Inc | Settable key and coding mechanism therefor |
US4325242A (en) * | 1977-08-25 | 1982-04-20 | Zeiss Ikon Ag Goerzwerk | Multi-level lock system and method |
FR2492872B1 (en) * | 1980-08-13 | 1985-10-11 | Vachette Sa | BUILT-IN PUSH-BUTTON AND SAFETY BARREL USING THE SAME |
US4400956A (en) * | 1981-08-05 | 1983-08-30 | Martin & Starchuk Limited | Skeleton key kit |
US4433487A (en) * | 1982-02-26 | 1984-02-28 | All-Lock Electronics, Inc. | Key reading system |
CA1238797A (en) * | 1982-03-23 | 1988-07-05 | Robert L. Steinbach | Key and method of manufacture |
US4608842A (en) * | 1984-06-25 | 1986-09-02 | Zeiss Ikon Ag | Lock and key system |
DE3509579A1 (en) * | 1985-03-16 | 1986-09-18 | Vdo Adolf Schindling Ag, 6000 Frankfurt | IGNITION KEY WITH TRANSMITTER |
DE3542008A1 (en) * | 1985-11-28 | 1987-06-04 | Dom Sicherheitstechnik | Key for lock cylinders |
US4712398A (en) * | 1986-03-21 | 1987-12-15 | Emhart Industries, Inc. | Electronic locking system and key therefor |
-
1986
- 1986-05-29 DE DE3618074A patent/DE3618074C1/en not_active Expired
-
1987
- 1987-05-27 AT AT87730061T patent/ATE47613T1/en not_active IP Right Cessation
- 1987-05-27 EP EP87730061A patent/EP0247966B1/en not_active Expired
- 1987-05-29 US US07/055,724 patent/US4869085A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7900875U1 (en) * | 1981-10-22 | BBC AG Brown, Boveri & Cie., 5401 Baden, Aargau | Thermal switch | |
DE2411362C3 (en) * | 1974-03-09 | 1979-06-28 | Zeiss Ikon Ag, 7000 Stuttgart | Locking device, consisting of a rotary cylinder lock and associated flat key |
EP0029498B1 (en) * | 1979-11-24 | 1982-10-20 | DOM-Sicherheitstechnik GmbH & Co. KG | Cylinder lock with flat key |
Non-Patent Citations (1)
Title |
---|
GMA-Heft 43, 22-10-1981, seite 1386 * GM 79 00 879, Zusammenfassung * & DE-U1-79 00 875 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3272973A1 (en) * | 2016-07-18 | 2018-01-24 | BAE SYSTEMS plc | A lock for a tamper-resistant assembly |
WO2018015714A1 (en) * | 2016-07-18 | 2018-01-25 | Bae Systems Plc | A lock for a tamper resistant assembly |
US11124991B2 (en) | 2016-07-18 | 2021-09-21 | Bae Systems Plc | Lock for a tamper resistant assembly |
Also Published As
Publication number | Publication date |
---|---|
ATE47613T1 (en) | 1989-11-15 |
DE3618074C1 (en) | 1988-01-07 |
EP0247966A3 (en) | 1988-05-11 |
US4869085A (en) | 1989-09-26 |
EP0247966B1 (en) | 1989-10-25 |
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