Tamper-resistant alarm switch assembly
First Claim
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1. A tamper-resistant switch assembly operable to detect relative movement between first and second members, one of said members having an apertured outer surface and a hollow interior space inboard of said outer surface and in communication with said aperture, said switch assembly comprising:
- a first movement-sensing switch located within said hollow interior space of said one member inboard of said outer surface and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members;
a second tamper-sensing switch assembly located within said hollow interior space of said one member inboard of said outer surface and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and
mounting structure operable to support said first switch and second switch assembly within said hollow interior space of said one member and inboard of said outer surface thereof in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position,said switchable component of said second tamper switch assembly being a magnetically actuatable switch operable to switch between said first and second separate tamper-sensing states in response to a change in magnetic field conditions adjacent said switchable component, said actuating component of said second tamper switch assembly located proximal to said switchable component.
1 Assignment
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Accused Products
Abstract
Tamper-resistant alarm switch assemblies (22, 100, 124, 148) are provided which include a first movement-sensing switch (24) and a second tamper-sensing switch assembly (25) including a switchable component (26) and an actuating component (74, 136, 166), mounted on a member (30) and each being switchable between respective first and second movement-sensing and tamper-sensing switch states in response to relative movement between first and second members (30, 32), and relative shifting between the switch (26) and actuating component (74, 136, 166). Mounting structure (28, 106, 138) is provided to attach the first switch (24) and second switch assembly (25) to the member (30) in a normal operating position wherein the first switch (24) will sense relative movement between the first and second members (30, 32), with relative shifting between the switchable component (26) and the actuating component (74, 136, 166) in the event of an attempted detachment of at least one of the components (26, 74, 136, 166) of the tamper switch assembly (25), or the first switch (24), or both thereof, from the member (30).
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Citations
33 Claims
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1. A tamper-resistant switch assembly operable to detect relative movement between first and second members, one of said members having an apertured outer surface and a hollow interior space inboard of said outer surface and in communication with said aperture, said switch assembly comprising:
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a first movement-sensing switch located within said hollow interior space of said one member inboard of said outer surface and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly located within said hollow interior space of said one member inboard of said outer surface and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to support said first switch and second switch assembly within said hollow interior space of said one member and inboard of said outer surface thereof in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said switchable component of said second tamper switch assembly being a magnetically actuatable switch operable to switch between said first and second separate tamper-sensing states in response to a change in magnetic field conditions adjacent said switchable component, said actuating component of said second tamper switch assembly located proximal to said switchable component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A tamper-resistant switch assembly operable to detect relative movement between first and second members, comprising:
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a first movement-sensing switch mounted on one of said members and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly mounted on said one member and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to attach said first switch and second switch assembly to said one member in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said mounting structure comprising a first plate supporting said first movement-sensing switch, a second plate supporting one of said components of said second tamper switch assembly, said first and second plates secured to said one member, said first plate secured to said one member by a first threaded fastener, said second plate secured to said one member by a second threaded fastener, said first plate being detachable from the first member separately from the second plate, said second plate including an elongated arm extending from said second threaded fastener and having said tamper switch component supported thereon spaced laterally from the second threaded fastener such that detachment of the second threaded fastener will cause the second plate and switch component supported thereon to shift relative to the other component of the tamper switch.
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28. A tamper-resistant switch assembly operable to detect relative movement between first and second members, comprising:
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a first movement-sensing switch mounted on one of said members and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly mounted on said one member and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to attach said first switch and second switch assembly to said one member in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said first switch and one of the components of said second switch assembly supported together in a single enclosure, the other component of said second switch assembly supported adjacent said single enclosure, said one component of said second switch assembly being said actuating component.
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29. A tamper-resistant switch assembly operable to detect relative movement between first and second members, one of said members having an apertured outer surface and a hollow interior space inboard of said outer surface and in communication with said aperture, said switch assembly comprising:
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a first movement-sensing switch located within said hollow interior space of said one member inboard of said outer surface and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly located within said hollow interior space of said one member inboard of said outer surface and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to support said first switch and second switch assembly within said hollow interior space of said one member and inboard of said outer surface thereof in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said mounting structure comprising a first plate supporting said first movement-sensing switch, a second plate supporting one of said components of said second tamper switch assembly, said first and second plates secured to said one member said second plate supporting said switchable component of said second tamper switch, said first plate supporting said actuating component of said second tamper switch assembly.
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30. A tamper-resistant switch assembly operable to detect relative movement between first and second members, one of said members having an apertured outer surface and a hollow interior space inboard of said outer surface and in communication with said aperture, said switch assembly comprising:
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a first movement-sensing switch located within said hollow interior space of said one member inboard of said outer surface and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly located within said hollow interior space of said one member inboard of said outer surface and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to support said first switch and second switch assembly within said hollow interior space of said one member and inboard of said outer surface thereof in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said mounting structure comprising a first plate supporting said first movement-sensing switch, a second plate supporting one of said components of said second tamper switch assembly, said first and second plates secured to said one member, said first plate secured to said one member by a first threaded fastener, said second plate secured to said one member by a second threaded fastener, said first plate being detachable from the first member separately from the second plate, said second plate including an elongated arm extending from said second threaded fastener and having said tamper switch component supported thereon spaced laterally from the second threaded fastener such that detachment of the second threaded fastener will cause the second plate and switch component supported thereon to shift relative to the other component of the tamper switch.
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31. A tamper-resistant switch assembly operable to detect relative movement between first and second members, one of said members having an apertured outer surface and a hollow interior space inboard of said outer surface and in communication with said aperture, said switch assembly comprising:
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a first movement-sensing switch located within said hollow interior space of said one member inboard of said outer surface and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly located within said hollow interior space of said one member inboard of said outer surface and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to support said first switch and second switch assembly within said hollow interior space of said one member and inboard of said outer surface thereof in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said first switch and one of the components of said second switch assembly supported together in a single enclosure, the other component of said second switch assembly supported adjacent said single enclosure, said one component of said second switch assembly being said actuating component.
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32. A tamper-resistant switch assembly operable to detect relative movement between first and second members, one of said members having an apertured outer surface and a hollow interior space inboard of said outer surface and in communication with said aperture, said switch assembly comprising:
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a first movement-sensing switch located within said hollow interior space of said one member inboard of said outer surface and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly located within said hollow interior space of said one member inboard of said outer surface and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to support said first switch and second switch assembly within said hollow interior space of said one member and inboard of said outer surface thereof in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said first switch and one of the components of said second switch assembly supported together in a single enclosure, the other component of said second switch assembly supported adjacent said single enclosure, said one component of said second switch assembly being said switchable component of said tamper-sensing switch assembly, and said other component being said actuating component of said tamper-sensing switch assembly, including a bushing located within said hollow space of said one member and receiving said first switch and said switchable component of said tamper-sensing switch assembly, said actuating component of said tamper-sensing switch assembly being secured to said bushing.
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33. A tamper-resistant switch assembly operable to detect relative movement between first and second members, one of said members having an apertured outer surface and a hollow interior space inboard of said outer surface and in communication with said aperture, said switch assembly comprising:
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a first movement-sensing switch located within said hollow interior space of said one member inboard of said outer surface and operable to switch between first and second separate movement-sensing states in response to relative movement between said first and second members; a second tamper-sensing switch assembly located within said hollow interior space of said one member inboard of said outer surface and including a switchable component and an actuating component, said switchable component and actuating component being relatively shiftable, said switchable component switchable between first and second tamper-sensing states in response to said relative shifting between the switchable and actuating components; and mounting structure operable to support said first switch and second switch assembly within said hollow interior space of said one member and inboard of said outer surface thereof in a normal operating position wherein said first switch will sense said relative movement between said first and second members, and to cause said relative shifting between the switchable component and the actuating component of said tamper switch assembly, in the event of attempted detachment of at least one of the components of said second switch assembly, the first switch, or both thereof, from said normal operating position, said one member being a door frame, and said other member being a door.
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Specification
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Current AssigneeMagnasphere Corporation (discoverIE Group Plc)
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Original AssigneeMagnasphere Corporation (discoverIE Group Plc)
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InventorsWoods, Randall
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Primary Examiner(s)Barrera; Ramon M
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Application NumberUS12/172,788Publication NumberTime in Patent Office1,037 DaysField of Search335205-207, 335151-154, 3405451-5459US Class Current335/205CPC Class CodesH01H 36/0046 Limit switches, also fail-s...
