Operating panel
Patent 4613736 Issued on September 23, 1986. Estimated Expiration Date: 
December 6, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 6, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3627935 Low profile keyboard switch having panel hinged actuators and cantilevered beam snap acting contacts Actuator for pushbutton switch Keyboard switch assembly Metallic housing for an electronic apparatus with a flat keyboard Electrical switch assembly Patent #: 4387282 InventorsAssigneeApplicationNo. 06/677904 filed on 12/06/1984US Classes:200/317, Light visible through housing200/308, Indicators200/341, Push button200/343, Hinged button (e.g., piano key)200/5A, With independent operators200/534Abutting contactExaminersPrimary: Marcus, StephenAssistant: Luebke, Renee S. Attorney, Agent or FirmInternational ClassesH01H 13/70 (20060101)H01H 11/00 (20060101) H03J 1/00 (20060101) H04B 1/08 (20060101) Foreign Application Priority Data1981-03-20 JPAbstractAn operating switch panel, such as for an audio equipment tuner, utilizes a metal plate which is divided into a plurality of operating parts by simultaneous etching from both sides. Connecting parts remain between individual operating parts. Thin hinges are formed on the operating parts by etching from the back surface of the metal plate, dividing each operating part into two stationary and movable parts. The stationary parts are connected to each other through the connecting parts. Display parts in the form of recesses are formed on the surface of the metal plate respectively at each operating part. Projections are formed on the back surfaces of the movable parts for engaging associated switches. A number of operating parts can be arranged close to each other in a simplified and economical manufacturing process. | |
