Patent ID: 6651507
Filing Date: 2003-11-25
Classification: G01L

Abstract:
A pressure gauge including a fluid inlet at which to receive fluid of which the value of pressure is to be monitored, a pressure sensitive Bourdon tube responsive to changes in pressure values of fluid received in said inlet and a pointer indicator supported on an arcuately displaceable pointer shaft and operative by said Bourdon tube for providing indicia of the value of pressure being received, the improvement comprising a dampener for suppressing undesirable vibration force in the received fluid from being transmitted to said pointer indicator, said dampener comprising:a cylindrical hub having a first end secured to the pointer shaft, a second end and a tubular bore in which to internally receive a portion of said pointer shaft, said tubular bore defining a first internal diameter at the first end at which said hub is secured to said shaft and a second internal diameter larger than said first diameter and defining an annular clearance between said shaft and the second internal diameter of said hub, and the second end juxtaposed a substantially fixed surface and defining an axial clearance therebetween; and a packing of dampener agent of predetermined viscosity positioned in the annular clearance between the second internal diameter of said hub tubular bore and said received shaft portion and in the axial clearance between said hub second end and said substantially fixed surface whereby lubricant cushioning is effected.