Inductor devices – With supporting and/or spacing means between coil and core – Preformed insulation between coil and core
Reexamination Certificate
2005-01-11
2005-01-11
Nguyen, Tuyen T. (Department: 2832)
Inductor devices
With supporting and/or spacing means between coil and core
Preformed insulation between coil and core
C336S192000
Reexamination Certificate
active
06842101
ABSTRACT:
A tunable inductor is provided, including an elongate mandrel having a central axis, and having a helical groove of predetermined pitch formed on an outer surface thereof. A flange having at least one guide member is also included proximate a first end of the mandrel and positioned substantially perpendicular the central axis thereof. A wire is also included, positioned within the helical groove and wound about the central axis of the mandrel, as well as a turn member positioned a distance from the flange in the axial direction and protruding from the outer surface of the mandrel. The turn member is radially offset from one guide member by an amount substantially equal to a diameter of the wire, and redirects the wire in a direction substantially parallel to the central axis of the mandrel from the helical groove back toward the first end of the mandrel.
REFERENCES:
patent: 2751563 (1956-06-01), Willyard et al.
patent: 2941172 (1960-06-01), Sutton, Jr.
patent: 3649939 (1972-03-01), Hildebrandt
patent: 4109224 (1978-08-01), Liautaud
patent: 4170014 (1979-10-01), Sully
patent: 4229722 (1980-10-01), Olsen
patent: 4255735 (1981-03-01), Liautaud
Drawings of Eagle Comtronics Inductor (2 pages), before Jan., 2001.
Drawing of Goguen Industries, Inc. Inductor (1 page), Jan. 1, 1992.
Specification sheet of Standex Electronics, 7mm Variable Inductors, Series 800, 126 & 936 (1 page), before Jan., 2001.
Specification sheet of Coilcraft, Tunable RF Coils (1 page), before, Jan., 2001.
Specification sheet of Coilcraft, “Slot Ten” 10 mm Tunable RF coils (1 page), before Jan., 2001.
Specification sheet of Coilcraft, “Slot Seven” 7 mm Tunable RF coils (1 page), before Jan., 2001.
Specification sheet of TOKO,Type MC117, Molded Coils (1 page), before Jan., 2001.
Specification sheet of TOKO,Type MC119, Molded Coils (1 page), before Jan., 2001.
Specification sheet of TOKO,Type MC152, Molded Coils for Surface Mounting (2 pages), before Jan., 2001.
Maguire Joseph N.
Zennamo, Jr. Joseph A.
Burr & Brown
Eagle Comtronics, Inc.
Nguyen Tuyen T.
LandOfFree
Tunable inductor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tunable inductor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable inductor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3388447