G - Physics – 10 – K
Patent
G - Physics
10
K
84/63
G10K 9/12 (2006.01) G10K 9/20 (2006.01)
Patent
CA 1183706
Abstract of the Disclosure The horn comprises a magnetically permeable housing with an electromagnet mounted therein and a diaphragm attached thereto. The electromagnet core may have an inclined bearing surface at one end thereof. A striker is disposed between the electromagnet bearing surface and the diaphragm for movement away from and strikingly against the diaphragm, the striker being coupled to the housing by control means which includes a flexible carrier member and which is operative when the striker is moving away from the diaphragm for imparting to the car- rier member a predetermined curvature to increase the potential energy thereof. In one form of the invention the control means includes a control member, either integral with or attached to the housing and having a curved surface engageable with the carrier member to impart the predetermined curvature thereto. The control member may also have a stepped configuration which simu- lates a curved surface. In another form of the invention, the carrier member is normally curved in its unflexed rest condition. In still another form of the invention the carrier member rests loosely upon a sloping control surface of the housing.
394184
Fetherstonhaugh & Co.
Pittway Corporation
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