| 摘要 |
A CATHODE-RAY TUBE (10) HAS AN INTERNAL MAGNETIC SHIELD (18) AND AT LEAST ONE CONTACT SPRING (28) ATTACHED TO THE SHIELD. THE SHIELD INCLUDES A LAND (31) WITH AN OUTER EDGE (36) AND AN INNER EDGE (35). THE SPRING INCLUDES TWO PORTIONS, AN IMPROVED CLASP PORTION (42) ATTACHED TO THE SHIELD AT THE LAND, AND A CONTACT LEAF PORTION (44). THE IMPROVED CLASP PORTION INCLUDES A FLAT BODY (41) WITH A REVERSE BEND HOOK (46) AT A FIRST END, AND A LATCH (48) AND A CATCH (43) AT AN END OPPOSITE TO THE FIRST END. THE HOOK ENGAGES THE OUTER EDGE OF THE LAND, AND THE LATCH ENGAGES THE INNER EDGE OF THE LAND. THE CATCH INCLUDES A BENT END PORTION THAT FORMS AN ACUTE ANGLE WITH THE REMAINDER OF THE CATCH. THE BENT END PORTION IS POSITIONED TO ENGAGE THE INNER EDGE OF THE LAND IF THE SPRING IS ROTATED ABOUT THE HOOK. THE LEAF PORTION IS CONNECTED TO AND EXTENDS FROM THE LATCH.
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