Audible and audible-visible alarms with interchangeable cover
AssigneeWheelock, Inc.
InventorInhong Hur
Life of this patent
Estimating the term…
Abstract
The bases of an audible alarm unit and an audible/visible alarm unit are configured to be used interchangeably with a single cover. The cover has an opening that receives a projecting wall portion on the base of the audible alarm unit and a receptacle for a strobe lamp unit on the base of the audible/visible alarm unit. The bases have mounting holes that enable the alarm units to be mounted on several types of standard backboxes, the cover concealing the screw holes for good appearance of the installed units.
Claims49
A mounting plate for mounting an audible-visual alarm to a backbox, comprising:
- a plate having a front side and a back side;
- a plurality of front-to-back openings in the plate located along at least one side of the plate for receiving at least one mounting fastener;
- an enlarged front-to-back opening in the plate for facilitating electrical connection to alarm generating components;
- at least one mounting element located at one side of the plate for engaging at least one cooperating mounting element on the alarm;
- and
- at least one opening formed in the plate at a location spaced from said one side of the plate for receiving a fastener for securing the alarm to the plate.
An audible-visual alarm and mounting plate assembly, comprising:
- a plate having a front side and a back side;
- a plurality of front-to-back openings in the plate located along at least one side of the plate for receiving at least one mounting fastener;
- an enlarged front-to-back opening in the plate for facilitating electrical connection to alarm generating components;
- at least one mounting element located at one side of the plate;
- at least one opening formed in the plate at a location spaced from said one side of the plate for receiving a cover fastener;
- and
- an alarm cover for covering at least a portion of said front side of the plate, where said alarm cover has an opening for receiving said cover fastener and at least one cooperating mounting element for engaging said at least one mounting element located on said plate.
A mounting plate for mounting an audible-visual alarm to a backbox, comprising:
- a plate having a front side and a back side;
- a plurality of front-to-back openings in the plate located along at least one side of the plate for receiving at least one mounting fastener;
- an enlarged front-to-back opening in the plate for facilitating electrical connection to alarm generating components, where said enlarged front-to-back opening is surrounded on the front side of the plate by an upstanding base for receiving a strobe lamp;
- and
- at least one mounting element located at one side of the plate for engaging at least one cooperating mounting element on an alarm cover.
A mounting plate for mounting an audible-visual alarm to a backbox, comprising:
- a plate having a front side and a back side;
- a plurality of front-to-back openings in the plate located along at least one side of the plate for receiving at least one mounting fastener;
- an enlarged front-to-back opening in the plate for facilitating electrical connection to the alarm generating components of the alarm;
- and
- indicium on said front side of the plate for indicating a correct orientation of the plate when attached to a backbox for providing a desired orientation of a feature of the alarm.
Dependencies are inferred from the claim text.