Thin film bridge initiator and method therefor
Patent 4729315 Issued on March 8, 1988. Estimated Expiration Date: 
December 17, 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.
December 17, 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 3082691 3420174 3426682 Electric igniter Electric igniter with conductive bodies and thin connector Electric igniter Detonator, solid state type I film bridge Patent #: 4484523 InventorsApplicationNo. 06/943380 filed on 12/17/1986US Classes:102/202.9, With electric terminals102/202.5Electrical primer or ignitorExaminersPrimary: Jordan, Charles T.Attorney, Agent or FirmInternational ClassesF42B 3/12 (20060101)F42B 3/00 (20060101) AbstractA thin film bridge initiator is mounted on a header for use in a detonator where a primer is activated by heat from the thin film. The initiator includes a substrate which carries a pair of metallic beam-type leads connected by a thin film bridge which activates the adjacent primer. The beam-type leads are affixed (welded) to a pair of electrical pins which are on adjacent sides of a slot in the header. The entire structure is very cost effective, reliable and provides fast functioning and safety. In addition, a process of manufacturing several bridge initiators at one time on a single wafer is provided. | |
