BOURDON SPRING ( VARIANTS ) Russian patent published in 2003 - IPC

FIELD: springy sensitive elements used in devices measuring pressure, robotics systems, especially operating under conditions of vibration and load. SUBSTANCE: Bourdon spring is fabricated from tube possessing corrugated section varying in length. Variable stiffness is achieved as width of corrugation increases from free end towards fixed end while height of corrugation is constant or maximal on free end of tube and diminishes to zero while approaching to fixed end. Section can have several corrugations of variable height. EFFECT: raised vibration stability and sensitivity of Bourdon springs. 3 cl, 4 dwg