Hinge device and portable electronic apparatus
Patent 7792555 Issued on September 7, 2010. Estimated Expiration Date: 
March 30, 2027. 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.
March 30, 2027. 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 ReferencesGravity return hinge having an axle rod in an axle sleeve Patent #: 4391020 InventorsAssigneeApplicationNo. 11731171 filed on 03/30/2007US Classes:455/575.3Foldable typeExaminersPrimary: Harper, Vincent PAttorney, Agent or FirmForeign Patent References
International ClassesH04M 1/00H04M 9/00 E05D 7/00 E05D 3/10 AbstractA first turning member is formed in a bottomed cylindrical shape. A pivot is convexly formed on the bottom of the first turning member, and a packing is wound around the first turning member. A boss is convexly formed on one surface of a second turning member, and a packing is wound around the boss. A pivot opening is formed in the other surface of the second turning member. The boss is inserted into the first turning member. The pivot is inserted into a ring-shaped waterproof member and a plain washer. The waterproof member surrounds the pivot opening. The waterproof member is sandwiched between the bottom of the first turning member and the end surface of the boss.Other References
Field of SearchFoldable typeRotatable mechanism (e.g., hinge) HINGE Pivotal adjustment Axially shifting hinge sections Having means to reduce friction between hinge parts Plural hinge axes Having plural hinge axes (e.g., multiple pintle) Having transverse or skewed axes Connected by serially arranged pivoted links between hinged members Plural sets of serially arranged pivoted links Four or more axes Specified material Specific pintle structure Specific leaf structure | |
