Communications: electrical – Condition responsive indicating system – Specified housing
Patent
1996-07-16
1998-06-16
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specified housing
34081549, 248551, 362185, 49 50, G08B 2300
Patent
active
057677824
ABSTRACT:
An alarm guard for use with an alarm signaling device that is installed to meet Underwriter laboratories (UL) 1971 requirements and that includes a chassis mountable to a surface and a visual signaling element mounted on an outer face of the chassis and extending therefrom to be activated to indicate a hazardous condition. The alarm guard includes a mesh chassis guard enclosing at least four sides of the chassis and a visual indicator guard including a plurality of guard elements mounted to the chassis guard adjacent the visual signaling element. The guard elements may be comprised of straight and curved segments and extend from the outer face of the chassis and are spaced apart along the vertical and horizontal faces of the visual signaling element to provide vertical and horizontal openings sufficient to provide a required emitted light pattern in each plane of light emission. The extension of each guard and the separation between adjacent guard elements are selected to protect the visual signaling element from a predetermined generally spherical object. The chassis guard may extend over at least a portion of the outer face of the chassis outside of the visual signaling element and a segments of the guard element may extends across the outer face of the chassis be attached to the chassis guard.
REFERENCES:
patent: 4344114 (1982-08-01), Denhart
patent: 5149039 (1992-09-01), Peterson et al.
patent: 5297011 (1994-03-01), Triunfol
patent: 5388800 (1995-02-01), Fry
"Underwriter Laboratories (UL) 1971", `Signaling Device for the Hearing Impaired`, published Aug. 24, 1993, pp. 31-34.
Clapp, Esq. Gary D.
Edwards, Jr. Timothy
Hofsass Jeffery
Space Age Electronics, Inc.
LandOfFree
Guard for visual signal device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Guard for visual signal device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Guard for visual signal device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1730720