Pressure fluid source and motor > Pulsator > Programmed, self-cycled or self-pulsed > Pneumatic device having pulse air bleed or supply means > Patents

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Class Information
Number: 60/542
Name: Power plants > Pressure fluid source and motor > Pulsator > Programmed, self-cycled or self-pulsed > Pneumatic device having pulse air bleed or supply means
Description: Apparatus in which the pulsator fluid is air and having structure by which air is fed to or removed from the system.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
5159814	Pneumatic impulse motor with gas cushion	Nov. 3, 1992
4932479	Vacuum-compression type percussion power tool with a pumping chamber	Jun. 12, 1990
4828046	Vacuum-compression type percussion power tool with an auxiliary chamber	May. 9, 1989
4823886	Vacuum-compression type percussion power tool	Apr. 25, 1989
4346768	Impact device with sinusoidal rotary-to-reciprocative converter	Aug. 31, 1982
4149384	Fluid pressure amplifier	Apr. 17, 1979
4049078	Marine acoustic pulse train signal generator	Sep. 20, 1977
4047849	Pneumatic pulsator pumping system with pulsator fluid venting valve	Sep. 13, 1977
3948051	Fluid pressure amplifier	Apr. 6, 1976