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US4990888A Expired / Lapsed US ⏱️ 0.0 years remaining

Unitary alarm sensor and communication package for security alarm system

Assignee: ADT Security Services LLC
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Filing: 1986-02-25
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Granted: 1991-02-05
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Expires: 2006-02-25
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Abstract

Abstract A security alarm system includes a transponder having a housing enclosing both a sensor and associated circuit means in a unitary package. The housing base includes barrel-shaped connectors, and a pc board carrying the communications components is carried by the housing cover. Flag-like connectors mate with the barrel-shaped connectors when the cover is attached to the base, and the connectors give both good mechanical indexing and retention, and effective electrical contact. Removal of the cover from the base breaks the electrical contact and thus breaks continuity back to the system controller, indicating someone has tampered with the system.

Inventors

  • 👤 William R. Vogt
  • 👤 Leonard Noonan
  • 👤 John E. Seeley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 07:51
CPC Classifications
G; G08; G08B; G08B26/00; G08B26/001; G08B26/002; G08B29/00; G08B29/02; G08B29/04; G08B29/046; Y; Y10; Y10S; Y10S439/00; Y10S439/911

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 213 words
A security alarm system for monitoring at least two relatively movable components in which a controller communicates with at least two separately addressable transponders, at least one of the transponders including at least one sensor transducer, each transponder including circuit means for communicating between the sensor transducer and the controller, at least one transponder having a housing comprised of a cover and a base and substantially enclosing both the circuit means and the sensor transducer in a unitary package, an auxiliary unit positioned on one of said components such that, responsive to relative movement between the components, the sensor transducer produces a signal denoting such relative movement, said base and cover including means for establishing an electrical connection when the base and cover are mated, to identify separation of the base and cover by interruption of the electrical connection, said means for establishing the electrical connection between the base and cover including at least one cylindrical female connector defining a slit therein and supported on the base, and at least one flag-like connector supported on the cover in a position such that when the cover and base are assembled, the flag-like connector is received in the slit of the cylindrical female connector to provide both mechanical indexing and retention, and effective electrical contact.
Claim 2
Dependent Claim 213 words
A security alarm system for monitoring at least two relatively movable components in which a controller communicates with at least two separately addressable transponders, at least one of the transponders including at least one sensor transducer, each transponder including circuit means for communicating between the sensor transducer and the controller, at least one transponder having a housing comprised of a cover and a base and substantially enclosing both the circuit means and the sensor transducer in a unitary package, an auxiliary unit positioned on one of said components such that, responsive to relative movement between the components, the sensor transducer produces a signal denoting such relative movement, said base and cover including means for establishing an electrical connection when the base and cover are mated, to identify separation of the base and cover by interruption of the electrical connection, said means for establishing the electrical connection between the base and cover including at least one cylindrical female connector defining a slit therein and supported on the base, and at least one flag-like connector supported on the cover in a position such that when the cover and base are assembled, the flag-like connector is received in the slit of the cylindrical female connector to provide both mechanical indexing and retention, and effective electrical contact.
Claim 3
Dependent Claim 32 words
A security alarm system as claimed in claim 1, and further comprising a support board carried by the cover, which support board carries said flag-like connector for insertion into said female connector.
Claim 4
Dependent Claim 38 words
A security alarm system as claimed in claim 1, and further comprising a support board carried by the base, which support board carries said cylindrical female connector, which connector defines the slit therein for receiving the flag-like connector.
Claim 5
Dependent Claim 97 words
A security alarm system as claimed in claim 1, and further comprising a first support board carried by the cover, said flag-like connector and an additional flag-like connector mounted on the first support board and spaced apart by a given distance, a second support board carried by the base, and said cylindrical female connector and an additional cylindrical female connector carried by the second support board and spaced apart by said given distance, each of said cylindrical female connectors defining a slit for receiving one of the flag-like connectors when the cover is assembled to the base.
Claim 6
Dependent Claim 47 words
A security alarm system as claimed in claim 4, in which a pair of spaced-apart pillars extend from the base toward the first support board carried by the cover, which pillars are of a height to provide the desired distance between the first and second support boards.
Claim 7
Dependent Claim 60 words
A security alarm system as claimed in claim 4, in which the slit in each cylindrical female connector has a width of reference dimension, and each flag-like connector has a thickness exceeding said reference dimension, to insure good electrical contact between the flag-like connector and female connector and provide effective mechanical retention of the flag-like connector in the female connector.
Claim 8
Dependent Claim 43 words
A security alarm system as claimed in claim 6, in which each flag-like connector has a tip portion tapered to a dimension less than said reference dimension to afford ready insertion of the flag-like connectors into the slits of the cylindrical female connectors.
Claim 9
Dependent Claim 216 words
A security alarm system for monitoring at least two relatively movable components in which a controller communicates over a pair of conductors with at least two separately addressable transponders, at least one of the transponders including at least one sensor transducer, each transponder including circuit means for communicating between the sensor transducer and the controller, at least one transponder having a housing comprised of a cover and a base and substantially enclosing both the circuit means and the sensor transducer in a unitary package, an auxiliary unit positioned on one of said components such that, responsive to relative movement between the components, the sensor transducer produces a signal denoting such relative movement, said base and cover including means for establishing an electrical connection when the base and cover and mated, to identify separation of the base and cover by interruption of the electrical connection, said means for establishing the electrical connection between the base and cover including at least one cylindrical female connector defining a slit therein and supported on the base, and a flag-like connector supported on the cover in a position such that when the cover and base are assembled, the flag-like connector is received in the slit of the cylindrical female connector to provide both mechanical indexing and retention, and effective electrical contact.
Claim 10
Dependent Claim 216 words
A security alarm system for monitoring at least two relatively movable components in which a controller communicates over a pair of conductors with at least two separately addressable transponders, at least one of the transponders including at least one sensor transducer, each transponder including circuit means for communicating between the sensor transducer and the controller, at least one transponder having a housing comprised of a cover and a base and substantially enclosing both the circuit means and the sensor transducer in a unitary package, an auxiliary unit positioned on one of said components such that, responsive to relative movement between the components, the sensor transducer produces a signal denoting such relative movement, said base and cover including means for establishing an electrical connection when the base and cover and mated, to identify separation of the base and cover by interruption of the electrical connection, said means for establishing the electrical connection between the base and cover including at least one cylindrical female connector defining a slit therein and supported on the base, and a flag-like connector supported on the cover in a position such that when the cover and base are assembled, the flag-like connector is received in the slit of the cylindrical female connector to provide both mechanical indexing and retention, and effective electrical contact.
Claim 11
Dependent Claim 37 words
A security alarm system as claimed in claim 8, and further comprising a support board carried by the cover, which support board carries said flag-like connector and an additional flag-like connector for insertion into respective female connectors.
Claim 12
Dependent Claim 43 words
A security alarm system as claimed in claim 8, and further comprising a support board carried by the base, which support board carries said cylindrical female connector and an additional cylindrical female connector, each defining a slit therein for receiving a flag-like connector.
Claim 13
Dependent Claim 97 words
A security alarm system as claimed in claim 8, and further comprising a first support board carried by the cover, said flag-like connector and an additional flag-like connector mounted on the first support board and spaced apart by a given distance, a second support board carried by the base, and said cylindrical female connector and an additional cylindrical female connector carried by the second support board and spaced apart by said given distance, each of said cylindrical female connectors defining a slit for receiving one of the flag-like connectors when the cover is assembled to the base.
Claim 14
Dependent Claim 66 words
A security alarm system as claimed in claim 11, in which the slit in each cylindrical female connector has a width of reference dimension, each flag-like connector has a thickness exceeding said reference dimension, and each flag-like connector has a tip portion tapered to a dimension less than said reference dimension to afford ready insertion of the flag-like connectors into the slits of the cylindrical connectors.
Claim 15
Dependent Claim 169 words
A transponder assembly for use in a security alarm system in which a controller communicates with separately addressable transponders, said transponder assembly including at least one circuit board, a sensor transducer mounted on said circuit board, circuit means, mounted on said circuit board, for communicating between the sensor transducer and the controller, a unitary housing, including a cover and a base, substantially enclosing the circuit board, the sensor transducer, and the circuit means, said base and cover including male and female connector means for establishing an electrical connection when the base and cover are mated, to identify separation of the base and cover by interruption of the electrical connection, in which the male connector means comprises a pair of flag-like connectors, spaced apart by a given distance, and said female connector means comprises a pair of cylindrical female connectors spaced apart by said given distance, each of said cylindrical female connectors defining a slit for receiving one of the flag-like connectors when the cover is assembled to the base.
Claim 16
Dependent Claim 169 words
A transponder assembly for use in a security alarm system in which a controller communicates with separately addressable transponders, said transponder assembly including at least one circuit board, a sensor transducer mounted on said circuit board, circuit means, mounted on said circuit board, for communicating between the sensor transducer and the controller, a unitary housing, including a cover and a base, substantially enclosing the circuit board, the sensor transducer, and the circuit means, said base and cover including male and female connector means for establishing an electrical connection when the base and cover are mated, to identify separation of the base and cover by interruption of the electrical connection, in which the male connector means comprises a pair of flag-like connectors, spaced apart by a given distance, and said female connector means comprises a pair of cylindrical female connectors spaced apart by said given distance, each of said cylindrical female connectors defining a slit for receiving one of the flag-like connectors when the cover is assembled to the base.
Claim 17
Dependent Claim 47 words
A transponder assembly as claimed in claim 13, in which the slit in each cylindrical female connector has a width of reference dimension, and each flag-like connector has a thickness exceeding said reference dimension, to insure good electrical contact between a flag-like connector and a female connector.
Claim 18
Dependent Claim 42 words
A transponder assembly as claimed in claim 14, in which each flag-like connector has a tip portion tapered to a dimension less than said reference dimension to afford ready insertion of the flag-like connectors into the slits of the cylindrical female connectors.

References Cited (Backward Citations)

US2916733A Cited
US3544987A Cited
US3833895A Cited
US4148019A Cited
US4138674A Cited
US4410229A Cited
US4367458A Cited
US4498723A Cited
US4542372A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-02-04 1994-08-06 1995-02-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-02-04 1998-08-06 1999-02-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-02-04 2002-08-06 2003-02-05 $7700.00 Window Closed / Lapsed

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