Patent US4852853A successfully refreshed from Google Patents.
US4852853A
Expired / Lapsed
US
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Pressure balance type solenoid controlled valve
Assignee: Nabtesco Corp
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Filing: 1988-05-12
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Granted: 1989-08-01
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Expires: 2008-05-12
Abstract
Abstract A pressure balance type solenoid controlled valve suitable for use under contaminated environments. The valve comprises a body, a solenoid mounted in the body, an armature mounted in the body movably by the solenoid and a poppet valve connected to the armature. The body has a sleeve loosely fitted thereto and a fluid passage formed therein. The poppet valve is provided with a seat portion for switching the fluid passage formed at a front end thereof. The poppet valve is pivotally connected to the armature at a rear end thereof. The poppet valve has an outer diameter substantially equal to a diameter of the seat portion at an intermediate portion between the front end and the rear end. The intermediate portion is slidably inserted into the sleeve. The poppet valve has a passage formed therein for equalizing pressures applied to sides of the sleeve.
Inventors
- 👤 Kamimura Toshio
- 👤 Ito Koji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:58
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0686; F16K31/0693
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
A pressure balance type solenoid controlled valve comprising an armature and a poppet valve pivotally connected to each other at a joint portion, wherein said poppet valve is provided with a seat portion formed at a front end thereof for switching a fluid passage, said poppet valve has an outer diameter substantially equal to a diameter of said seat portion at an intermediate portion between said seat portion and said joint portion, said intermediate portion is slidably inserted into a sleeve loosely fitted to a body of the solenoid controlled valve, and said poppet valve has a passage formed therein for equalizing pressures applied to sides of said sleeve.
Claim 2
Dependent Claim
109 words
A pressure balance type solenoid controlled valve comprising an armature and a poppet valve pivotally connected to each other at a joint portion, wherein said poppet valve is provided with a seat portion formed at a front end thereof for switching a fluid passage, said poppet valve has an outer diameter substantially equal to a diameter of said seat portion at an intermediate portion between said seat portion and said joint portion, said intermediate portion is slidably inserted into a sleeve loosely fitted to a body of the solenoid controlled valve, and said poppet valve has a passage formed therein for equalizing pressures applied to sides of said sleeve.
Claim 3
Dependent Claim
140 words
A pressure balance type solenoid controlled valve comprising a body, a solenoid mounted in said body, an armature mounted in said body movably by said solenoid and a poppet valve connected to said armature, characterized in that said body has a sleeve loosely fitted thereto and a fluid passage formed therein; said poppet valve is provided with a seat portion formed at a front end thereof for switching said fluid passage; said poppet valve is pivotally connected to said armature at a rear end thereof; said poppet valve has an outer diameter substantially equal to a diameter of said seat portion at an intermediate portion between said front end and said rear end; said intermediate portion is slidably inserted into said sleeve; and said poppet valve has a passage formed therein for equalizing pressures applied to sides of said sleeve.
Claim 4
Dependent Claim
140 words
A pressure balance type solenoid controlled valve comprising a body, a solenoid mounted in said body, an armature mounted in said body movably by said solenoid and a poppet valve connected to said armature, characterized in that said body has a sleeve loosely fitted thereto and a fluid passage formed therein; said poppet valve is provided with a seat portion formed at a front end thereof for switching said fluid passage; said poppet valve is pivotally connected to said armature at a rear end thereof; said poppet valve has an outer diameter substantially equal to a diameter of said seat portion at an intermediate portion between said front end and said rear end; said intermediate portion is slidably inserted into said sleeve; and said poppet valve has a passage formed therein for equalizing pressures applied to sides of said sleeve.
References Cited (Backward Citations)
US3788597A
Cited
US3945399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |