CA1099366A - Systeme avertisseur de surcharge de toit - Google Patents

Systeme avertisseur de surcharge de toit

Info

Publication number
CA1099366A
CA1099366A CA304,300A CA304300A CA1099366A CA 1099366 A CA1099366 A CA 1099366A CA 304300 A CA304300 A CA 304300A CA 1099366 A CA1099366 A CA 1099366A
Authority
CA
Canada
Prior art keywords
switch
roof
alarm
hanging member
condition
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
CA304,300A
Other languages
English (en)
Inventor
David Coon
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA304,300A priority Critical patent/CA1099366A/fr
Application granted granted Critical
Publication of CA1099366A publication Critical patent/CA1099366A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Emergency Alarm Devices (AREA)
CA304,300A 1978-05-29 1978-05-29 Systeme avertisseur de surcharge de toit Expired CA1099366A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA304,300A CA1099366A (fr) 1978-05-29 1978-05-29 Systeme avertisseur de surcharge de toit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA304,300A CA1099366A (fr) 1978-05-29 1978-05-29 Systeme avertisseur de surcharge de toit

Publications (1)

Publication Number Publication Date
CA1099366A true CA1099366A (fr) 1981-04-14

Family

ID=4111571

Family Applications (1)

Application Number Title Priority Date Filing Date
CA304,300A Expired CA1099366A (fr) 1978-05-29 1978-05-29 Systeme avertisseur de surcharge de toit

Country Status (1)

Country Link
CA (1) CA1099366A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1030866C2 (nl) * 2006-01-06 2007-07-09 Hermanus Johannes Visser Werkwijze en inrichting voor het bewaken van dakbelastingen.
US7646309B2 (en) 2006-01-06 2010-01-12 Hermanus Johannes Visser Method and device for monitoring roof loads
CN108518006A (zh) * 2018-04-12 2018-09-11 佛山科学技术学院 一种水泥楼房的隔热顶
CN108955497A (zh) * 2018-08-06 2018-12-07 中国冶集团有限公司 一种用于空间管桁架中次桁架的贯口检查装置及方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1030866C2 (nl) * 2006-01-06 2007-07-09 Hermanus Johannes Visser Werkwijze en inrichting voor het bewaken van dakbelastingen.
US7646309B2 (en) 2006-01-06 2010-01-12 Hermanus Johannes Visser Method and device for monitoring roof loads
CN108518006A (zh) * 2018-04-12 2018-09-11 佛山科学技术学院 一种水泥楼房的隔热顶
CN108955497A (zh) * 2018-08-06 2018-12-07 中国冶集团有限公司 一种用于空间管桁架中次桁架的贯口检查装置及方法

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Legal Events

Date Code Title Description
MKEX Expiry