Fine adjustable firing valve

Details Fine adjustable firing valve Fine adjustable firing valve

2011-08-16

2011-08-16

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

C251S025000, C251S331000

Reexamination Certificate

active

07997556

ABSTRACT:
A finely adjustable firing valve for rapidly discharging compressed air or compressed gas, for the purpose of generating a pressure wave in silos or containers of granular materials, comprising a pneumatic main valve (1), a pneumatic secondary valve (9), arranged to control the main valve (1), and a pilot valve (16), arranged to control the secondary valve (9), said main valve (1) comprising a main valving element (7) of membrane type.

REFERENCES:
patent: 3078066 (1963-02-01), Moore
patent: 3592224 (1971-07-01), Bois
patent: 4312375 (1982-01-01), Leinemann
patent: 4376523 (1983-03-01), Goyen
patent: 4624442 (1986-11-01), Duffy et al.
patent: 2004/0173765 (2004-09-01), Hsi-Chun
patent: 0 423 572 (1991-04-01), None
patent: 2006/119889 (2006-11-01), None

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