Patenton — panteon of patents

(19)

RU

(11)

2 217 796

(13)

C2

(51)

IPC

(21) (22)

Application

2001118350/09, 2001-07-02

(24)

Start date

2001-07-02

(22)

Actual filing date

2001-07-02

(45)

Published

2003-11-27

(72)

Inventor

Shubin V.V.Ovechkin S.I.Ivchenko S.N.

(73)

Holder

Rossijskij Federal'Nyj Jadernyj Tsentr Vserossijskij Nauchno-Issledovatel'Skij Institut Ehksperimental'Noj Fiziki

SMOKE FIRE ALARM Russian patent published in 2003 - IPC

Abstract RU 2217796 C2

FIELD: fire alarms. SUBSTANCE: fire alarm generates acoustic alarm with smoke appearance in protected volume. Fire alarm may be used as autonomous smoke optic-electronic device. Fire alarm comprises ranging signals source, photoelectric detector, photocurrent amplifier, selection-and-storage device, decision diagram, pulsed oscillator, integrating device, auditory message device, power supply control device and indicator lamp. EFFECT: simplified functional and schematic electrical circuit. 4 dwg

Similar patents RU2217796C2

Title Year Author Number
TRANSCEIVING UNIT OF FIBER-OPTIC DATA TRANSFER SYSTEM 2003
  • Shubin V.V.
  • Ovechkin S.I.
  • Ivchenko S.N.
 RU2239286C1
METHOD FOR DETECTING SLOW LEAK OF OPTICAL RADIATION THROUGH SIDE SURFACE OF FIBER-OPTIC COMMUNICATIONS LINE 2003
  • Shubin V.V.
  • Ovechkin S.I.
  • Ivchenko S.N.
 RU2251810C2
METHOD FOR PROTECTING INFORMATION AGAINST UNAUTHORIZED ACCESS IN FIBER-OPTIC COMMUNICATION LINE 1989
  • Popov S.N.
  • Shubin V.V.
 RU2234194C2
MULTICHANNEL DEVICE MEASURING ROOT-MEAN-SQUARE VALUE OF VOLTAGE 2000
  • Ametov A.D.
  • Gutnikov A.I.
 RU2198410C2
METHOD FOR PROTECTION OF INFORMATION AGAINST UNAUTHORIZED ACCESS IN FIBER-OPTICAL COMMUNICATION LINES 1995
  • Ivchenko S.N.
  • Shubin V.V.
 RU2110894C1
METHOD OF DETECTION OF RADIATION COUPLING FROM LATERAL SURFACE OF OPTICAL FIBRE 2006
  • Shubin Vladimir Vladimirovich
 RU2350018C2
METHOD FOR TAPPING LIGHT FROM OPTICAL FIBER 1996
  • Ivchenko S.N.
  • Klopov B.A.
  • Shubin V.V.
 RU2120186C1
PROGRAM TIMER 2001
  • Shishkin G.I.
  • Dikarev I.I.
 RU2215367C2
PULSE GENERATOR 2001
  • Kramkov G.I.
  • Shishkin G.I.
 RU2214676C2
COMMUTATOR FOR CONTROL OF STEP ELECTRIC MOTOR 1995
  • Plavinskij Eh.I.
  • Limar' M.P.
  • Val'Kov A.K.
 RU2103716C1

RU 2 217 796 C2

Authors

Shubin V.V.

Ovechkin S.I.

Ivchenko S.N.

Dates

2003-11-27—Published

2001-07-02—Filed

download Download PDF read Similar patents