Multi-head transducer assembly for helical scan video tape recorders
Patent 4758916 Issued on July 19, 1988. Estimated Expiration Date: 
September 10, 2006. 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.
September 10, 2006. 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 3846819 Multi-channel dual-gap magnetic head Magnetic head Magnetic head Combination magnetic head Magnetic head having a thermoplastic or a thermosetting plastic housing Multi-head transducer assembly for helical scan video tape recorders Patent #: 4652955 InventorsAssigneeApplicationNo. 06/906118 filed on 09/10/1986US Classes:360/121, Plural gaps360/122Head surface structureExaminersPrimary: Hecker, Stuart N.Assistant: Bowler, Alyssa H. Attorney, Agent or FirmInternational ClassesG11B 5/53 (20060101)G11B 5/265 (20060101) Foreign Application Priority Data1985-09-10 JPAbstractAn electromagnetic transducer assembly for use in a helical-scan type video tape recorder includes a pair of magnetic heads secured to a nonmagnetic base and successively arranged in spaced relationship with each other in the direction of transport of a magnetic medium, each of the heads comprising a generally U-shaped core having a pair of limb portions and a web portion therebetween, a generally I-shaped core connected to the limb portions to form a closed magnetic circuit having a magnetic gap therein, and a coil wound on the closed magnetic circuit, the I-shaped cores of the heads respectively having confronting edges extending unparallel to the magnetic gaps. | |
