A positive pressure actuated aerator valve assembly adapted to discharge compressed gas into the chamber of a bulk material handling structure. The aerator valve assembly includes a housing and positive pressure actuated valve. The housing includes a chamber adapted to receive compressed gas and a d
A positive pressure actuated aerator valve assembly adapted to discharge compressed gas into the chamber of a bulk material handling structure. The aerator valve assembly includes a housing and positive pressure actuated valve. The housing includes a chamber adapted to receive compressed gas and a discharge piston slideable between an extended position and a retracted position. The valve includes a valve body having an actuator piston seat and a fluid vent passageway in fluid communication with the actuator piston seat. An actuator piston is slideable with respect to the valve body between a retracted position and an extended position. A positive displacement force is applied to the actuator piston, such as by the supply of pressurized gas to the valve, to slide the actuator piston from the retracted position toward the extended position whereupon gas within the chamber of the housing flows through the fluid vent passageway and the discharge piston is moved from the extended position to the retracted position by gas within the chamber to thereby place the chamber of the housing in fluid communication with the fluid passageway of the piston seat.
대표청구항▼
What is claimed is: 1. The combination of a discharge piston movable to close a fluid passage and to open the fluid passage and an actuator piston operable to assist with biasing the discharge piston to move to close and to move to open comprising: a discharge piston movable along an axis, a body i
What is claimed is: 1. The combination of a discharge piston movable to close a fluid passage and to open the fluid passage and an actuator piston operable to assist with biasing the discharge piston to move to close and to move to open comprising: a discharge piston movable along an axis, a body including a recess, an actuator piston seat, and a fluid vent passageway in fluid communication with said actuator piston seat; an actuator piston associated with said body, said actuator piston including a head and a diaphragm having a first surface and a second surface, said actuator piston being slideable along the axis and with respect to said body between a retracted position and an extended position, said diaphragm being located within said recess of said body such that said diaphragm is slideable within said recess as said piston slides between said retracted position and said extended position, said head adapted to sealingly engage said actuator piston seat when said actuator piston is in said retracted position, said head adapted to be disengaged from said actuator piston seat when said actuator piston is in said extended position; a biasing member located within said recess of said body in operative engagement with said diaphragm, said biasing member adapted to resiliently bias said actuator piston toward said retracted position; and a plunger having a first end and a second end, said plunger being selectively slideable with respect to said body between a retracted position and an extended position, said first end of said plunger adapted to engage said diaphragm, said second end of said plunger adapted to receive a positive displacement force such that said plunger transfers said positive displacement force to said diaphragm; whereby said actuator piston is selectively slideable from said retracted position toward said extended position by selective application of said positive displacement force to said second surface of said diaphragm such that a first fluid passageway extends through said actuator piston seat. 2. The valve of claim 1 wherein said recess of said body includes a first chamber located adjacent said first surface of said diaphragm and a second chamber located adjacent said second surface of said diaphragm. 3. The valve of claim 2 wherein said biasing member is located within said first chamber. 4. The valve of claim 2 including a second fluid passageway in fluid communication with said second chamber, said second fluid passageway adapted to selectively supply compressed gas to said second chamber, said compressed gas adapted to apply the positive displacement force to said actuator piston to slide said actuator piston from said retracted position toward said extended position. 5. The valve of claim 4 including a cap attached to said body, said cap forming a portion of said recess, said second fluid passageway extending through said cap. 6. The valve of claim 1 including an actuator member adapted to apply said positive displacement force to said second end of said plunger. 7. The valve of claim 1 wherein said actuator piston includes a stem, said stem attaching said head to said diaphragm, said stem located adjacent said first surface of said diaphragm and extending through said actuator piston seat. 8. The valve of claim 1 wherein said body includes a hub, said hub including said actuator piston seat and an outwardly extending flange. 9. The valve of claim 1 and further including a bore in the discharge piston, the bore extending in a direction generally parallel to the axis, the bore being located adjacent the periphery of the discharge piston. 10. A valve assembly including: a housing including a first body and a piston seat, said first body forming a chamber and including a port in fluid communication with said chamber, said port adapted to be placed in fluid communication with a source of pressurized gas, said piston seat including a fluid passageway in selective fluid communication with said chamber; a discharge piston associated with said first body having an interior side and an exterior side and one or more fluid passages extending through said discharge piston from said interior side to said exterior side, said discharge piston being selectively slideable with respect to said first body between an extended position and a retracted position, said discharge piston adapted to sealingly engage said piston seat when said discharge piston is in said extended position to thereby seal said chamber and said port from said first fluid passageway of said piston seat, said exterior side of discharge piston being spaced apart from said piston seat when said discharge piston is in said retracted position to thereby place said chamber and said port in fluid communication with said fluid passageway of said piston seat; a first biasing member associated with said housing, said first biasing member resiliently biasing said discharge piston from said retracted position toward said extended position; and a valve associated with said housing, said valve including a second body having an actuator piston seat and a fluid vent passageway in fluid communication with said actuator piston seat, a fluid chamber formed between said interior side of said discharge piston and said second body in fluid communication with said port of said chamber, said actuator piston seat being in selective fluid communication with said chamber of said housing, said valve including an actuator piston slideable with respect to said second body between a retracted position and an extended position, said actuator piston adapted to sealingly engage said actuator piston seat when said actuator piston is in said retracted position to thereby seal said fluid vent passageway from said chamber, said actuator piston being spaced apart from said actuator piston seat when said actuator piston is in said extended position to thereby place said fluid vent passageway in fluid communication with said chamber; whereby said actuator piston is selectively slideable from said retracted position toward said extended position by selective application of a positive displacement force to said actuator piston such that a fluid passageway is opened from said chamber of said housing to said fluid vent passageway of said valve, whereupon gas within said chamber of said housing is adapted to slide said discharge piston from said extended position toward said retracted position such that said chamber and said port of said housing are in fluid communication with said fluid passageway of said piston seat. 11. The valve assembly of claim 10 wherein second body of said valve includes a recess, and said actuator piston includes a head and a diaphragm, said diaphragm located in said recess, said head adapted to selectively sealingly engage said actuator piston seat. 12. The valve assembly of claim 11 wherein said recess of said second body of said valve includes a first chamber located adjacent a first surface of said diaphragm and a second chamber located adjacent a second surface of said diaphragm. 13. The valve assembly of claim 12 including a second fluid passageway in fluid communication with said second chamber of said valve, said second fluid passageway adapted to selectively supply compressed gas to said second chamber, said compressed gas adapted to apply said positive displacement force to said actuator piston. 14. The valve assembly of claim 12 wherein said actuator piston includes a stem attaching said head to said diaphragm, said stem coupled to said first surface of said diaphragm and extending through said actuator piston seat. 15. The valve assembly of claim 11 including a biasing member located within said recess, said biasing member adapted to resiliently bias said actuator piston toward said retracted position. 16. The valve assembly of claim 11 including a plunger having a first end and a second end, said plunger being selectively slideable with respect to said second body of said valve between a retracted position and an extended position, said first end of said plunger adapted to engage said diaphragm of said actuator piston, said second end of said plunger adapted to receive said positive displacement force such that said plunger transfers said positive displacement force to said diaphragm. 17. A method of operating an aerator valve assembly, said method comprising the steps of: providing a housing and a valve associated with said housing, said housing having a chamber adapted to receive a supply of compressed gas through a port in fluid communication with said chamber, a piston seat having a fluid passageway in selective fluid communication with said chamber, and a discharge piston selectively slideable with respect to said piston seat between a retracted position and an extended position, said discharge piston including an exterior side and an interior side, said exterior side of said discharge piston comprising a first portion of the discharge piston having a bore extending from the exterior side to the interior side and a second portion of the discharge piston in fluid communication with said port which sealingly engages said piston seat when said discharge piston is in said extended position to thereby seal said chamber from said fluid passageway, said valve including a body having an actuator piston seat in selective fluid communication with said chamber of said housing and a fluid vent passageway in fluid communication with said actuator piston seat, said valve including an actuator piston associated with said body, said actuator piston being selectively slideable between a retracted position and an extended position, said actuator piston adapted to sealingly engage said actuator piston seat when said actuator piston is in said retracted position to thereby seal said fluid vent passageway from said chamber of said housing; providing a positive displacement force to said actuator piston, said positive displacement force adapted to slide said actuator piston from said retracted position toward said extended position such that said fluid vent passageway is in fluid communication with said chamber of said housing; discharging gas from said chamber of said housing into said fluid vent passageway; and providing a gas force to said first portion of the exterior side of said discharge piston by said compressed gas within said chamber; sliding said discharge piston from said extended position toward said retracted position in response to said provision of said gas force thereby placing said chamber in fluid communication with said fluid passageway of said piston seat. 18. The method of claim 17 wherein said valve includes a biasing member, said biasing member resiliently biasing said actuator piston toward said retracted position. 19. The method of claim 17 wherein said step of providing a positive displacement force to said actuator piston comprises providing compressed gas to said valve, said compressed gas adapted to provide said positive displacement force to said actuator piston. 20. The method of claim 17 wherein said valve includes a moveable plunger, said step of providing a displacement force to said actuator piston comprising applying said positive displacement force to said plunger whereby said plunger transfers said positive displacement force to said piston.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (24)
Hurdis Jason R. ; Burkhart James R., Aerator valve assembly.
Maury Hans-Dietmar (Hindemithstrasse 5 59227 Ahlen DEX), Air cannon for removing cakes of flowable material and clearing clogged areas of flowable material.
Johnson Kelly B. (Layton UT) Moore Walter A. (Ogden UT) Kort Leland B. (Lakewood CO) Rink Karl K. (Liberty UT), Piston-actuated air bag inflator with hermetic liner.
Simoens HervH. J. (40 Avenue Foch 59700 Marco en Baroeul FRX), Valve for pressurizing a compressed gas accumulator and for the sudden discharge of gas from the accumulator.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.