SEALED INSTRUMENT Russian patent published in 1997 - IPC

FIELD: test audio-frequency, radio-frequency oscillators, pulse signals, complex shape signals. SUBSTANCE: for sealing the instrument casing without any use of misalignment correction assemblies of pivots (for instance, cardan joints) rigidly secured on printed-circuit board 1 near instrument front panel 8 is cast-in bracket 5, which has holes 6, whose diameter, quantity and arrangement correspond to the diameter, quantity and arrangement of pivots 3 of control members 2, and annular shoulders 7 towards instrument front panel 8 around each hole 6. Each additional pivot 4 in its hole 6 of bracket 5 is hermetically sealed inside annular shoulders 7; annular shoulders 7 of bracket 5 are hermetically sealed with instrument front panel 8. EFFECT: enhanced reliability of sealing. 1 dwg