US3643699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque motor operated valve
Assignee: Textron Inc
•
Filing: 1970-05-18
•
Granted: 1972-02-22
•
Expires: 1990-05-18
Abstract
Abstract A valve slidably disposed within a bore and movable between first and second positions to control application of a source of fluid under pressure between an inlet and outlet port. An electrically operated torque motor is connected to the valve to drive the valve in response to an electrical signal applied to the torque motor. The valve is connected to a system and is responsive to a discrepancy between a control and monitor section of the system to effectively lock the system in a failure indicating mode of operation.
Inventors
- 👤 Richard K Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:30
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0435; F15B20/00; F15B20/008; H; H01; H01F; H01F7/00; H01F7/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2703; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86614; Y10T137/86622
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A torque motor operated valve comprising: means defining a bore having an inlet and an outlet; a valve seat in said bore; a valve movably disposed in said bore and operable with said valve seat to block communication between said inlet and outlet; an electrically operated torque motor; stiff flapper means interconnecting said torque motor and said valve and movable in first and second directions responsive to electrical signals applied to said torque motor for driving said valve.
Claim 2
Dependent Claim
78 words
A torque motor operated valve comprising: means defining a bore having an inlet and an outlet; a valve seat in said bore; a valve movably disposed in said bore and operable with said valve seat to block communication between said inlet and outlet; an electrically operated torque motor; stiff flapper means interconnecting said torque motor and said valve and movable in first and second directions responsive to electrical signals applied to said torque motor for driving said valve.
Claim 3
Dependent Claim
36 words
A torque motor operated valve as defined in claim 1 which further includes a poppet, a rod member in engagement with said poppet and said flapper, whereby said poppet moves responsive to movement of said flapper.
Claim 4
Dependent Claim
25 words
A torque motor operated valve as defined in claim 2 which further includes spring means continuously urging said rod member into engagement with said poppet.
Claim 5
Dependent Claim
118 words
A torque motor operated valve comprising: means defining a bore having first and second inlets and an outlet; first and second valve seats in said bore; a valve disposed in said bore movable between said first and second seats thereby to provide communication between said first or said second inlet and said outlet; an electrically operated torque motor; a rigid flapper driven in first and second directions by said torque motor; a rod member engaging said valve and said flapper; and spring means continuously urging said rod into engagement with said valve and said valve toward said first inlet, whereby said flapper aids said spring means in one direction and resists said spring means in the other direction.
Claim 6
Dependent Claim
118 words
A torque motor operated valve comprising: means defining a bore having first and second inlets and an outlet; first and second valve seats in said bore; a valve disposed in said bore movable between said first and second seats thereby to provide communication between said first or said second inlet and said outlet; an electrically operated torque motor; a rigid flapper driven in first and second directions by said torque motor; a rod member engaging said valve and said flapper; and spring means continuously urging said rod into engagement with said valve and said valve toward said first inlet, whereby said flapper aids said spring means in one direction and resists said spring means in the other direction.
Claim 7
Dependent Claim
65 words
A torque motor operated valve as defined in claim 4 which further includes first and second sources of fluid under pressure connected to said first and second inlets respectively, and said first and second valve seats are dimensioned to provide a force acting upon said valve which is greater than the force of said spring when said valve is seated upon said first valve seat.
Claim 8
Dependent Claim
39 words
A torque motor operated valve as defined in claim 4 which further includes second spring means connected to said flapper for urging said flapper in a direction opposite that to which it has been moved by said torque motor.
Claim 9
Dependent Claim
22 words
A torque motor operated valve as defined in claim 2 wherein said rod member is angularly disposed with respect to said flapper.
Claim 10
Dependent Claim
24 words
A torque motor operated valve as defined in claim 7 wherein the engagement between said flapper and said rod member is a loose engagement.
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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |