NL27733C - - Google Patents
Info
- Publication number
- NL27733C NL27733C NL27733DA NL27733C NL 27733 C NL27733 C NL 27733C NL 27733D A NL27733D A NL 27733DA NL 27733 C NL27733 C NL 27733C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49881—Assembling or joining of separate helix [e.g., screw thread]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US279361A US1870968A (en) | 1928-05-21 | 1928-05-21 | Heater element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL27733C true NL27733C (it) |
Family
ID=23068623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL27733D NL27733C (it) | 1928-05-21 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1870968A (it) |
| BE (1) | BE360807A (it) |
| NL (1) | NL27733C (it) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL84125C (it) * | 1951-10-13 | |||
| GB734196A (en) * | 1952-06-11 | 1955-07-27 | Standard Telephones Cables Ltd | Improvements in or relating to indirectly heated cathodes |
| BE523420A (it) * | 1952-10-11 | |||
| US2855495A (en) * | 1954-09-20 | 1958-10-07 | Statham Instrument Inc | Temperature control device |
| US2879436A (en) * | 1955-03-02 | 1959-03-24 | Jr Wilson S Geisler | Traveling wave tube and method of constructing the same |
| US2850666A (en) * | 1955-12-01 | 1958-09-02 | Hughes Aircraft Co | Helix structure for traveling-wave tubes |
| US2931997A (en) * | 1957-12-23 | 1960-04-05 | Ward Leonard Electric Co | Mounting for tubular resistors |
| US3132409A (en) * | 1959-12-22 | 1964-05-12 | Westinghouse Electric Corp | Process for assembling electrodes |
| US4781640A (en) * | 1985-01-24 | 1988-11-01 | Varian Associates, Inc. | Basket electrode shaping |
-
0
- BE BE360807D patent/BE360807A/xx unknown
- NL NL27733D patent/NL27733C/xx active
-
1928
- 1928-05-21 US US279361A patent/US1870968A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1870968A (en) | 1932-08-09 |
| BE360807A (it) |