IT1211091B - Heat forming polyurethane articles - Google Patents
Heat forming polyurethane articlesInfo
- Publication number
- IT1211091B IT1211091B IT8123495A IT2349581A IT1211091B IT 1211091 B IT1211091 B IT 1211091B IT 8123495 A IT8123495 A IT 8123495A IT 2349581 A IT2349581 A IT 2349581A IT 1211091 B IT1211091 B IT 1211091B
- Authority
- IT
- Italy
- Prior art keywords
- electron beam
- capacitor
- current
- switch
- cut
- Prior art date
Links
- 229920002635 polyurethane Polymers 0.000 title 1
- 239000004814 polyurethane Substances 0.000 title 1
- 238000010894 electron beam technology Methods 0.000 abstract 12
- 239000003990 capacitor Substances 0.000 abstract 5
Landscapes
- Electron Sources, Ion Sources (AREA)
Abstract
The circuit has a switch coupled to a source of a voltage supply and has a control input responsive to a signal that is indicative of when electron beam current cut-off is required and related to a deflection signal for the electron beam for selectively conducting a current associated with electron beam cutoff. A capacitor is coupled to the switch and to a control grid of the cathode ray tube for storing a charge to develop an electron beam blanking voltage on the capacitor. The switch conducts the current related to electron beam cutoff when electron beam current cut-off is not required and disables conduction of the current related to electron beam cutoff when electron beam current cut-off is required. The capacitor is charged from the current related to electron beam cutoff that flows through the switch and is supplied by the source of the voltage supply when electron beam current cut-off is not required. The switch decouples the source of the supply voltage from the capacitor and places the blanking voltage developed on the capacitor across the control grid when electron beam current cut-off is required to cut-off the electron beam current in the cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8123495A IT1211091B (en) | 1981-08-13 | 1981-08-13 | Heat forming polyurethane articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8123495A IT1211091B (en) | 1981-08-13 | 1981-08-13 | Heat forming polyurethane articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8123495A0 IT8123495A0 (en) | 1981-08-13 |
| IT1211091B true IT1211091B (en) | 1989-09-29 |
Family
ID=11207604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT8123495A IT1211091B (en) | 1981-08-13 | 1981-08-13 | Heat forming polyurethane articles |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1211091B (en) |
-
1981
- 1981-08-13 IT IT8123495A patent/IT1211091B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8123495A0 (en) | 1981-08-13 |
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