Inventors:
John C. Hamma - Isle of Palms SC
Walter J. Ferguson - Waterbury CT
Jeffrey T. Blake - Milford CT
Michael J. Maloney - Cicero NY
Louis A. Rosen - Trumbull CT
Assignee:
Dresser, Inc. - Addison TX
International Classification:
G01L 704
Abstract:
Various embodiments are disclosed of dampening apparatus for a pressure gauge in which a short length of sleeve, ferrule, hub or thimble encircles a pointer shaft in a close but loose fit relation defining a clearances packed with a high viscosity dampening agent such that it serves to decelerate and cushion any sudden shock or pulsation force that would otherwise be transmitted from the pointer shaft to a pointer registering values of pressure of fluid pressure being monitored.