GB1229363A - - Google Patents
Info
- Publication number
- GB1229363A GB1229363A GB1229363DA GB1229363A GB 1229363 A GB1229363 A GB 1229363A GB 1229363D A GB1229363D A GB 1229363DA GB 1229363 A GB1229363 A GB 1229363A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- conductor
- contact unit
- conductors
- extends
- 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
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/24—Frequency- independent attenuators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/24—Frequency- independent attenuators
- H03H7/25—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
1,229,363. Electromagnetic relays. SINGER CO. 18 Nov., 1969 [9 Dec., 1968], No. 56338/69. Headings H1N and H1R An externally controlled attenuator has an electrically conductive housing split to form a base 11 and cover 12 which define a plurality of independent cavities connected at their ends by transverse ducts 15, 16 with respective continuous conductors 17, 18 therein and insulated from the housing; with a reed contact unit 23 and a series resistor 20 in each cavity interconnecting the conductors 17, 18, and separate surrounding coils for each contact unit. The housing provides electrical shielding and each coil bobbin is provided with an internal shield (Fig. 3, not shown) which is electrically connected to the housing and stabilizes the distributed capacitance. The conductor extends through the housing at 32 and is connected by a microswitch (Fig. 2, not shown) to the centre conductor of a coaxial connector. A lead 39 extends out of the housing from the conductor 18 into a logged compartment (Fig. 2), containing a thermally responsive element.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78231368A | 1968-12-09 | 1968-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1229363A true GB1229363A (en) | 1971-04-21 |
Family
ID=25125654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1229363D Expired GB1229363A (en) | 1968-12-09 | 1969-11-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3538481A (en) |
| DE (2) | DE1961063A1 (en) |
| FR (1) | FR2025677A1 (en) |
| GB (1) | GB1229363A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4366812B2 (en) * | 2000-02-22 | 2009-11-18 | オムロン株式会社 | Relay unit for power circuit cutoff and its relay unit case |
| DE102004054620A1 (en) | 2004-11-11 | 2006-06-08 | Henkel Kgaa | Geranonitrile substitute |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2597090A (en) * | 1949-05-19 | 1952-05-20 | Daven Company | Variable attenuator |
| US3192493A (en) * | 1961-05-24 | 1965-06-29 | Radar Design Corp | Variable attenuator |
-
1968
- 1968-12-09 US US782313A patent/US3538481A/en not_active Expired - Lifetime
-
1969
- 1969-11-18 GB GB1229363D patent/GB1229363A/en not_active Expired
- 1969-12-05 DE DE19691961063 patent/DE1961063A1/en active Pending
- 1969-12-05 DE DE6947201U patent/DE6947201U/en not_active Expired
- 1969-12-08 FR FR6942359A patent/FR2025677A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2025677A1 (en) | 1970-09-11 |
| US3538481A (en) | 1970-11-03 |
| DE1961063A1 (en) | 1971-01-14 |
| DE6947201U (en) | 1970-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |