GB722389A - Improvements in or relating to inductor units - Google Patents
Improvements in or relating to inductor unitsInfo
- Publication number
- GB722389A GB722389A GB27328/52A GB2732852A GB722389A GB 722389 A GB722389 A GB 722389A GB 27328/52 A GB27328/52 A GB 27328/52A GB 2732852 A GB2732852 A GB 2732852A GB 722389 A GB722389 A GB 722389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mounts
- coil
- rivets
- base
- ferrite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
- H01Q7/08—Ferrite rod or like elongated core
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
722,389. Inductors. STANDARD COIL PRODUCTS CO., Inc. Oct. 30, 1952 [Nov. 9, 1951], No. 27328/52. Class 38 (2). [Also in Group XL (c)] An inductor unit employed as a radio aerial comprises a coil wound on a longitudinal core of ferromagnetic material (e.g. ferrite), each end of which is supported by a resilient mounting. This arrangement reduces the degree of breakage and change in permeability of the ferrite rod when subjected to mechanical shocks, &c. As shown in Fig. 1, a ferrite rod 10 is supported at each end by resilient mounts 20, 21 made of insulating material such as " Arcuarite " (Registered Trade Mark) and secured to an insulating base member 25 by means of rivets 23, 28. Shocks, &c., in a plane perpendicular to base 25 are absorbed by the resilience of the curves 22 and those in a plane parallel to the base by a yielding of the mounts in this plane, this yielding resulting in rotation of corner 40 of the mounts about rivets 28 and lateral twisting of the mounts, the rotation being made possible by arranging that the line joining the rivets 23, 28 runs at an angle to the axis of rod 10 which is less than 90 degrees. The coil which comprises a fixed portion 12 and two adjustable portions 12c, 12d for adjustment of the inductance is tuned by a trimmer condenser 50. Alternatively the ends of the coil may be secured to suitable lugs mounted on base 25 or they may be left free. The complete unit may be mounted in a radio receiver, Fig. 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US255615A US2740114A (en) | 1951-11-09 | 1951-11-09 | Rod antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB722389A true GB722389A (en) | 1955-01-26 |
Family
ID=22969130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27328/52A Expired GB722389A (en) | 1951-11-09 | 1952-10-30 | Improvements in or relating to inductor units |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2740114A (en) |
| GB (1) | GB722389A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4275400A (en) * | 1977-08-08 | 1981-06-23 | Masashi Miyakoshi | Antenna coil and its support structure mounting |
| CA1243731A (en) * | 1983-08-29 | 1988-10-25 | Hideo Honma | Portable tape player with radio in lid |
| USRE33497E (en) * | 1983-08-29 | 1990-12-18 | Sony Corporation | Portable tape player with radio in lid |
| DE19534229A1 (en) * | 1995-09-15 | 1997-03-20 | Licentia Gmbh | Transponder arrangement |
| US8669909B2 (en) * | 2011-11-30 | 2014-03-11 | Panasonic Corporation | Antenna, antenna apparatus, and communication apparatus |
| US10756425B2 (en) * | 2016-11-03 | 2020-08-25 | Tom Lavedas | Adjustment of near-field gradient probe for the suppression of radio frequency interference and intra-probe coupling |
| US11300598B2 (en) | 2018-11-26 | 2022-04-12 | Tom Lavedas | Alternative near-field gradient probe for the suppression of radio frequency interference |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US965065A (en) * | 1909-11-18 | 1910-07-19 | Arthur Bent | Ring and flier doubling-frame. |
| US2143658A (en) * | 1936-09-30 | 1939-01-10 | Rca Corp | Ultra short wave system |
| US2272433A (en) * | 1940-09-26 | 1942-02-10 | Johnson Lab Inc | Mounting and operating means for variable inductance devices |
| US2422458A (en) * | 1942-04-04 | 1947-06-17 | Amy Aceves & King Inc | Filter device for antenna systems |
| US2432514A (en) * | 1945-03-27 | 1947-12-16 | Sperry Gyroscope Co Inc | Adjustable flux valve |
| US2558487A (en) * | 1949-06-28 | 1951-06-26 | Joseph N Marks | Multifrequency tunable antenna |
-
1951
- 1951-11-09 US US255615A patent/US2740114A/en not_active Expired - Lifetime
-
1952
- 1952-10-30 GB GB27328/52A patent/GB722389A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2740114A (en) | 1956-03-27 |
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