US3598148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Momentary contact poppet valve
Assignee: Airmatic Valve Inc
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Filing: 1969-08-14
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Granted: 1971-08-10
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Expires: 1989-08-14
Abstract
Abstract A poppet valve having a poppet assembly mounted for reciprocation to two positions in the valve body. A first position opening one poppet to establish fluid pressure flow from a valve inlet to a valve outlet. A second position closing said one poppet and opening another poppet to establish flow from a valve inlet to a valve outlet. A first solenoid-operated pilot valve momentarily operated to move the poppet assembly from said first position to said second position. A second solenoidoperated pilot valve momentarily operated to restore said assembly to said first position whereby fluid pressure flow is maintained from an inlet to an outlet without the maintenance of current flow in either solenoid.
Inventors
- 👤 Kenneth K Kroffke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:15
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/0401; F15B13/0405; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87193; Y10T137/87209
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
211 words
A poppet valve for momentary contact solenoid operation comprising a valve body, a first poppet assembly mounted in said body for reciprocation to first and second positions, a second poppet assembly mounted in said body for reciprocation to first and second positions, inlet means for fluid pressure, outlet means for fluid pressure, one of said poppet assemblies in said first position establishing a fluid flow path from said inlet means to outlet means, the other of said poppet assemblies in the first position establishing a fluid flow path from the outlet means, a first solenoid valve connected to said fluid pressure inlet source adapted to be momentarily energized to effect movement of said first and second poppet assemblies from said first position to said second position, said other of said poppet assemblies in said second position establishing a fluid pressure flow path from said inlet means to said outlet means, said one poppet assembly in said second position establishing a fluid pressure flow path from said outlet means, means for directing fluid pressure from said inlet source to a second solenoid valve so as to make ready for operation said second solenoid valve, and means to momentarily energize said second solenoid valve to restore said poppet assemblies to said first position.
Claim 2
Dependent Claim
211 words
A poppet valve for momentary contact solenoid operation comprising a valve body, a first poppet assembly mounted in said body for reciprocation to first and second positions, a second poppet assembly mounted in said body for reciprocation to first and second positions, inlet means for fluid pressure, outlet means for fluid pressure, one of said poppet assemblies in said first position establishing a fluid flow path from said inlet means to outlet means, the other of said poppet assemblies in the first position establishing a fluid flow path from the outlet means, a first solenoid valve connected to said fluid pressure inlet source adapted to be momentarily energized to effect movement of said first and second poppet assemblies from said first position to said second position, said other of said poppet assemblies in said second position establishing a fluid pressure flow path from said inlet means to said outlet means, said one poppet assembly in said second position establishing a fluid pressure flow path from said outlet means, means for directing fluid pressure from said inlet source to a second solenoid valve so as to make ready for operation said second solenoid valve, and means to momentarily energize said second solenoid valve to restore said poppet assemblies to said first position.
Claim 3
Dependent Claim
47 words
A valve according to claim 1 wherein two outlets are provided and in said first position one of said poppet assemblies directs fluid pressure flow to one outlet and in said second position the other of said poppet assemblies directs fluid pressure flow to the other outlet.
Claim 4
Dependent Claim
55 words
A valve according to claim 1 wherein each poppet assembly includes a stem having two spaced poppet heads fixed thereto and the valve body provides two spaced seats for the poppet heads, the distance between the spaced poppet heads exceeding the distance between the spaced seats whereby full opening of one fully closes the other.
Claim 5
Dependent Claim
32 words
A valve according to claim 3 wherein each stem has a piston fixed thereto adjacent the poppet head and the area of the piston exceeds the area of the adjacent poppet head.
Claim 6
Dependent Claim
30 words
A valve according to claim 4 wherein one stem has an axial bore therethrough opening into the space above the piston and into the space between the two poppet heads.
Claim 7
Dependent Claim
149 words
A poppet valve and momentary pilot valve, comprising: a valve body, an inlet in said valve body, an outlet in said valve body, an exhaust in said valve body, a valve bore, a poppet assembly in said valve bore having spaced poppet heads and a pilot piston at one end thereof, said outlet communicating with said bore between said poppet heads, said exhaust communicating with said bore at the distal side of one of said heads, said inlet communicating with said bore on the distal side of the other of said heads, pilot valve means for momentarily supplying fluid to said pilot piston to shift the valve assembly, passage means in said valVe assembly communicating the bore portion between said heads with the pilot piston to maintain the valve shifted, and valve means for exhausting said pilot piston to permit return of said valve assembly from the shifted position.
Claim 8
Dependent Claim
149 words
A poppet valve and momentary pilot valve, comprising: a valve body, an inlet in said valve body, an outlet in said valve body, an exhaust in said valve body, a valve bore, a poppet assembly in said valve bore having spaced poppet heads and a pilot piston at one end thereof, said outlet communicating with said bore between said poppet heads, said exhaust communicating with said bore at the distal side of one of said heads, said inlet communicating with said bore on the distal side of the other of said heads, pilot valve means for momentarily supplying fluid to said pilot piston to shift the valve assembly, passage means in said valVe assembly communicating the bore portion between said heads with the pilot piston to maintain the valve shifted, and valve means for exhausting said pilot piston to permit return of said valve assembly from the shifted position.
Claim 9
Dependent Claim
181 words
A poppet valve assembly comprising: a valve body, an inlet in said valve body, an outlet in said valve body, an exhaust in said valve body, a valve bore, a valve member slideable in said valve bore from a first position connecting said inlet to said outlet to a second position connecting said outlet to said exhaust, one end of said valve member defining a pilot, a chamber in said bore adjacent said pilot which when pressurized shifts said valve member from one of said positions to the other, means raising the valve member to said one position, means providing selective pressurization and depressurization of said chambers including a first momentary contact valve for connecting the pilot with said chamber, a second separately actuable momentary contact valve for connecting said chamber with low pressure, and means for holding the valve member in said one position after the first momentary contact valve is deactivated including means responsive to movement of the valve member from the other position to the one position for connecting said inlet to the chamber to maintain pressurization thereof.
Claim 10
Dependent Claim
181 words
A poppet valve assembly comprising: a valve body, an inlet in said valve body, an outlet in said valve body, an exhaust in said valve body, a valve bore, a valve member slideable in said valve bore from a first position connecting said inlet to said outlet to a second position connecting said outlet to said exhaust, one end of said valve member defining a pilot, a chamber in said bore adjacent said pilot which when pressurized shifts said valve member from one of said positions to the other, means raising the valve member to said one position, means providing selective pressurization and depressurization of said chambers including a first momentary contact valve for connecting the pilot with said chamber, a second separately actuable momentary contact valve for connecting said chamber with low pressure, and means for holding the valve member in said one position after the first momentary contact valve is deactivated including means responsive to movement of the valve member from the other position to the one position for connecting said inlet to the chamber to maintain pressurization thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |