Classifications

• • G—PHYSICS
  • G08—SIGNALLING
  • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
  • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
  • G08B29/12—Checking intermittently signalling or alarm systems
  • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
  • G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
  • F23M11/00—Safety arrangements
  • F23M11/04—Means for supervising combustion, e.g. windows
  • F23M11/045—Means for supervising combustion, e.g. windows by observing the flame
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23N—REGULATING OR CONTROLLING COMBUSTION
  • F23N5/00—Systems for controlling combustion
  • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
  • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
  • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=4416146

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (2)

• 1976
  • 1976-12-24 CH CH1630476A patent/CH604088A5/xx not_active IP Right Cessation
• 1977
  • 1977-02-07 DE DE19772704971 patent/DE2704971C3/de not_active Expired
  • 1977-12-16 GB GB5249877A patent/GB1542792A/en not_active Expired
  • 1977-12-22 FR FR7738847A patent/FR2375794A1/fr active Granted
  • 1977-12-22 DK DK576377A patent/DK146606C/da not_active IP Right Cessation

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