GB9219845D0 - A capacitor back-up for mains operated smoke alarms - Google Patents

A capacitor back-up for mains operated smoke alarms

Info

Publication number
GB9219845D0
GB9219845D0 GB929219845A GB9219845A GB9219845D0 GB 9219845 D0 GB9219845 D0 GB 9219845D0 GB 929219845 A GB929219845 A GB 929219845A GB 9219845 A GB9219845 A GB 9219845A GB 9219845 D0 GB9219845 D0 GB 9219845D0
Authority
GB
United Kingdom
Prior art keywords
smoke alarms
capacitor back
mains operated
operated smoke
mains
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.)
Pending
Application number
GB929219845A
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.)
DERBYSHIRE MAID Ltd
Original Assignee
DERBYSHIRE MAID Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10722176&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB9219845(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DERBYSHIRE MAID Ltd filed Critical DERBYSHIRE MAID Ltd
Priority to GB929219845A priority Critical patent/GB9219845D0/en
Publication of GB9219845D0 publication Critical patent/GB9219845D0/en
Priority to GB9318966A priority patent/GB2269494B/en
Pending legal-status Critical Current

Links

GB929219845A 1992-09-19 1992-09-19 A capacitor back-up for mains operated smoke alarms Pending GB9219845D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB929219845A GB9219845D0 (en) 1992-09-19 1992-09-19 A capacitor back-up for mains operated smoke alarms
GB9318966A GB2269494B (en) 1992-09-19 1993-09-14 Smoke alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929219845A GB9219845D0 (en) 1992-09-19 1992-09-19 A capacitor back-up for mains operated smoke alarms

Publications (1)

Publication Number Publication Date
GB9219845D0 true GB9219845D0 (en) 1992-10-28

Family

ID=10722176

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929219845A Pending GB9219845D0 (en) 1992-09-19 1992-09-19 A capacitor back-up for mains operated smoke alarms
GB9318966A Expired - Fee Related GB2269494B (en) 1992-09-19 1993-09-14 Smoke alarm

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9318966A Expired - Fee Related GB2269494B (en) 1992-09-19 1993-09-14 Smoke alarm

Country Status (1)

Country Link
GB (2) GB9219845D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881021A (en) * 1997-03-10 1999-03-09 Dreamco Enterprises Inc. Quick charge capacitor powered non-interruptible wearable personal security alarm
NL1006217C2 (en) * 1997-06-04 1998-12-07 Iq Sec N V S A Container for securing valuable goods provided with a device for supplying energy to a consumer, in particular destruction means and a device for application in a container.
US6137192A (en) * 1998-05-15 2000-10-24 Energenius, Inc. Embedded backup energy storage unit
US6362743B1 (en) 1999-09-09 2002-03-26 Ranco Incorporated Of Delaware Smoke alarm with dual sensing technologies and dual power sources
GB2362768A (en) * 2000-05-26 2001-11-28 Motorola Israel Ltd Capacitor fed back-up power supply

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145618A (en) * 1977-09-15 1979-03-20 Wabco Westinghouse Arrangement for providing auxiliary energy source for static inverter used with traction motor drive during power interruption
US4155081A (en) * 1977-10-25 1979-05-15 Honeywell Inc. Rechargeable battery backup power source for an ionization smoke detector device
US4380760A (en) * 1980-02-21 1983-04-19 General Electric Company Smoke detector with delayed alarm after change to stand-by power
GB8615148D0 (en) * 1986-06-20 1986-07-23 Potterton Int Ltd Motor apparatus for control valve
FR2613147B1 (en) * 1987-03-24 1989-07-21 Electricite De France EMERGENCY PROCESS AND POWER SUPPLY FOR BRIDGING ELECTRICAL NETWORK FAILURES
GB2211679A (en) * 1987-10-27 1989-07-05 Eric Paul Paterson Solar powered current supply circuit
DE3742188A1 (en) * 1987-12-12 1989-06-22 Philips Patentverwaltung CIRCUIT ARRANGEMENT FOR POWER SUPPLY
CA2077228A1 (en) * 1992-08-31 1994-03-01 Gary Lennartz Smoke detector with capacitor back-up

Also Published As

Publication number Publication date
GB2269494B (en) 1995-03-22
GB9318966D0 (en) 1993-10-27
GB2269494A (en) 1994-02-09

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