GB1317856A - Lock alarm structure - Google Patents

Lock alarm structure

Info

Publication number
GB1317856A
GB1317856A GB2978571A GB2978571A GB1317856A GB 1317856 A GB1317856 A GB 1317856A GB 2978571 A GB2978571 A GB 2978571A GB 2978571 A GB2978571 A GB 2978571A GB 1317856 A GB1317856 A GB 1317856A
Authority
GB
United Kingdom
Prior art keywords
bolt
housing
contacts
lever
alarm
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.)
Expired
Application number
GB2978571A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB1317856A publication Critical patent/GB1317856A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/06—Mechanical actuation by tampering with fastening
    • 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
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8027—Condition indicators
    • Y10T70/827—Attention-directing
    • 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
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8432—For key-operated mechanism
    • Y10T70/8459—Housings
    • Y10T70/8541—Mounting arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
GB2978571A 1970-06-25 1971-06-24 Lock alarm structure Expired GB1317856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4982670A 1970-06-25 1970-06-25

Publications (1)

Publication Number Publication Date
GB1317856A true GB1317856A (en) 1973-05-23

Family

ID=21961953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2978571A Expired GB1317856A (en) 1970-06-25 1971-06-24 Lock alarm structure

Country Status (3)

Country Link
US (1) US3623062A (enExample)
JP (1) JPS5118880B1 (enExample)
GB (1) GB1317856A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272245A (en) * 1992-09-23 1994-05-11 Marek Glowacki Door lock alarm

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727210A (en) * 1971-04-23 1973-04-10 Minnesota Mining & Mfg Lock and alarm device
US3755802A (en) * 1971-09-30 1973-08-28 Stanley Works Alarm bolt
US3810145A (en) * 1972-10-27 1974-05-07 Oak Industries Inc Door bolt with electric alarm
JPS55139073U (enExample) * 1979-03-22 1980-10-03
US4465997A (en) * 1981-01-26 1984-08-14 Security Network International, Inc. Exterior mounted door and window alarm switch
JPS60142766U (ja) * 1984-02-29 1985-09-21 大日本印刷株式会社 イ−ジ−オ−プニング飲料容器
US5311168A (en) * 1992-09-10 1994-05-10 Pease Industries, Inc. Lock set with self-contained door alarm and annunciator system
US5754107A (en) * 1997-02-18 1998-05-19 Ferrantelli; Salvatore Pressure actuated dead bolt premises intrusion alarm and intruder
US6604014B1 (en) * 1998-03-02 2003-08-05 Triodyne Safety Systems L.L.C. Remote and proximal guard testing systems and testing systems either separately or in conjunction with interlock testing mechanisms and systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730970A (en) * 1952-12-01 1956-01-17 Frank V Martin Protective device for door locks
US2818475A (en) * 1957-05-17 1957-12-31 Harry Frank Automatic alarm lock
US3171115A (en) * 1960-11-14 1965-02-23 Calabro Rocco Combination lock and signal means
US3406386A (en) * 1965-10-04 1968-10-15 Gen Alarm Corp Chain lock alarm
GB1178991A (en) * 1966-01-24 1970-01-28 Gen Alarm Corp Security alarm system
US3444546A (en) * 1966-07-28 1969-05-13 Gen Alarm Corp Protection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272245A (en) * 1992-09-23 1994-05-11 Marek Glowacki Door lock alarm

Also Published As

Publication number Publication date
US3623062A (en) 1971-11-23
JPS5118880B1 (enExample) 1976-06-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees