Patent ID: 7530301
Filing Date: 2009-05-12
Classification: B06B

Abstract:
1. A non-impacting vibrator comprising: a housing having an inlet port and a first and second outlet port, said housing having an interior surface forming a chamber therein with an adhered lubricant thereon; a piston having an exterior surface with said piston slideable in the chamber, said piston having a first radial port fluidly connected to a first end port on a first end of the piston and a second radial port fluidly connected to a second end port on the opposite end of the piston so that when a gas is introduced into the inlet port the piston is alternately driven in opposite directions; and an on-demand start-up system to ensure initiation oscillation of the piston in the vibrator, said on-demand start-up system comprises an end port for changing pressure at one end of the piston.