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특허 상세정보

Alarm device with multiple indicators and flameproof housing

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G08B-003/00   
미국특허분류(USC) 340/691.1 ; 340/326 ; 340/332 ; 340/331 ; 340/384.1 ; 340/385.1 ; 381/340 ; 381/341 ; 381/342
출원번호 US-0297894 (1999-08-11)
우선권정보 GB0023209 (1996-11-07)
국제출원번호 PCT/GB97/02959 (1997-10-28)
§371/§102 date 19990811 (19990811)
국제공개번호 WO-9820466 (1998-05-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Michael Best & Friedrich LLP
인용정보 피인용 횟수 : 9  인용 특허 : 18
초록

An alarm device 10 incorporates a sounder 11 and a strobe 12. The sounder and the strobe are controlled by a circuit board 17 that is located within a single flameproof housing 13. A pressure unit 23 produces the sound for the device with the sound passing through a sintered disc 24 into an upwardly and outwardly diverging cone 25 from the top of which the sound is reflected outwardly and downwardly within a dome 26. A ramp 27 then assists in reflecting and emitting the sound.

대표
청구항

[ What is claimed is:] [1.] An alarm device (10) incorporating a housing (13), the housing being adapted to have two alarms (11,12) operating therefrom in which one of the alarms is an audible alarm (11) and the other alarm is a visual alarm (12), the device including a light transmitting portion, said light transmitting portion comprising part of the housing, the housing being flameproof whereby the housing is constructed such that in the case of an explosion occurring in the housing the flames will be prevented from leaving the housing, the housing inc...

이 특허에 인용된 특허 (18)

  1. Zimmermann Daniel E.. Apparatus for generating an audible tone. USP1999095953436.
  2. Balderson ; Robert B.. Audible-visual warning alarm system. USP1978024074244.
  3. Solomon Dennis R. (Wallasey GB2). Audio-visual alarm device with translucent cover. USP1985054518946.
  4. Fritz Marlene M. (Dallas TX) Love Betty J. (Dallas TX) Sweeney Mary D. (Dallas TX) Davis Chuck (Fort Worth TX). Audio-visual alarm system with address display. USP1989084855723.
  5. Burns Lawrence J. (11782 Bayfield Ct. Reston VA 22094). Combination outside light and audible/visual alarm. USP1995125477205.
  6. Bader Joseph F. (Crete IL). Dual diverging manifold loudspeaker system. USP1990014893343.
  7. Leslie William M. (5623 Stresemann St. San Diego CA 92122). Emergency signal device. USP1996095557294.
  8. Malafouris Dannie O. (P.O. Box 13637 Portland OR 97303). Fireplace forced air heating apparatus. USP1980104228784.
  9. Kuo Ching L. (c/o 180 - 11180 Voyuageur Way Richmond ; British Columbia CAX V6X 3N8). Flashing light siren alarm. USP1992075132659.
  10. Kringen Dale E. (Sioux Falls SD) Culhane Thomas D. (Sioux Falls SD). Household alarm system. USP1991024996517.
  11. Fusco Andrew (52 Winchester Youngstown OH 44509). Light and alarm device. USP1981094288784.
  12. Bach Arthur (829 N. 10th Ave. Phoenix AZ 85007). Neighborhood audio-visual alarm system. USP1988034730184.
  13. Altilio Michael T.. Portable audible beacon. USP1999045898363.
  14. Merendini Andrew Vito ; Oddo John A. ; Petosa Dennis A.. Portable safety light and audible signal apparatus. USP1998105825280.
  15. McCarthy Robert F. (2349 Madison Rd. Cincinnati OH 45208). Self-contained audible alarm assembly. USP1992115166665.
  16. Webb Norman J. (Sacramento CA) Bories David (Fair Oaks CA). Smoke detector. USP1981034257039.
  17. Curl Ricky L. (Pinson AL) Roberts Lowell E. (Irondale AL). Smoke detector with strobed visual alarm and remote alarm coupling. USP1991055019805.
  18. Berman Michael Jay ; Barsky Joseph B.. System and method for preventing smoke and fire damage to people and equipment in a clean room area from a fire. USP1999115990789.