US3785613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequencing valve control apparatus and system
Assignee: ENERFLO Inc A CORP OF
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Filing: 1971-11-15
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Granted: 1974-01-15
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Expires: 1991-11-15
Abstract
Abstract Control and power actuating means for the sequential operation of a valve component, particularly of relatively large valve units, wherein the valve component is required to be moved in going from one operating position to another through a succession of linear and rotational movements in opposite directions, in which one power actuator is selectively energizable to move a positioning member for the valve component in axially reciprocal directions, and another power actuator is selectively energizable to rotate the positioning member in opposite directions, sequential or cyclic operations of the actuators for changing the valve from one operating position to another being interlocked and determined by a sequencing valve which is responsive to movements of the valve positioning member.
Inventors
- 👤 J Picard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:57
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/02; F16K5/0242; F16K31/00; F16K31/12; F16K31/122; F16K31/124; F16K5/08; F16K5/14; F16K5/16; F16K5/162
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
151 words
Control and actuating means for the sequential operation of a valve mechanism, comprising: a. a valve requiring linear and rotational movement in its operation; b. a positioning member connected with said valve, said member being supported for axial reciprocable movements, and rotational movements in opposite directions; c. a first power actuator connected with said positioning member and being selectively energizable to axially move said member in opposite directions; d. a second power actuator connected with said positioning member and being selectively energizable to rotate said member in opposite directions; e. main control means selectively operable to energize one of said power actuators to initiate a predetermined sequence of successive movements of said valve by said power actuators; and f. movable sequencing control means operable in response to axial and rotational movements of said member for energizing said power actuators according to a said predetermined sequence of successive movements for said valve.
Claim 2
Dependent Claim
151 words
Control and actuating means for the sequential operation of a valve mechanism, comprising: a. a valve requiring linear and rotational movement in its operation; b. a positioning member connected with said valve, said member being supported for axial reciprocable movements, and rotational movements in opposite directions; c. a first power actuator connected with said positioning member and being selectively energizable to axially move said member in opposite directions; d. a second power actuator connected with said positioning member and being selectively energizable to rotate said member in opposite directions; e. main control means selectively operable to energize one of said power actuators to initiate a predetermined sequence of successive movements of said valve by said power actuators; and f. movable sequencing control means operable in response to axial and rotational movements of said member for energizing said power actuators according to a said predetermined sequence of successive movements for said valve.
Claim 3
Dependent Claim
24 words
Control and actuating means according to claim 1, wherein said main control means comprises a solenoid operated reversing valve having manual override actuating means.
Claim 4
Dependent Claim
15 words
Control and actuating means according to claim 1, wherein the power actuators are fluid actuated.
Claim 5
Dependent Claim
26 words
Control and actuating means according to claim 3, including separate pilot valves for said power actuators, said pilot valves being controlled by said sequencing control means.
Claim 6
Dependent Claim
30 words
Control and actuating means according to claim 3, wherein said sequencing control means comprises a fluid control valve having a spool valve connected with and moved by said positioning member.
Claim 7
Dependent Claim
44 words
Control and actuating means according to claim 5, in which said sequencing fluid control valve provides a hydraulically interlocked sequence of operations of the power actuators, whereby the second actuator will not operate until the first actuator has completed its operation, and vice versa.
Claim 8
Dependent Claim
59 words
Control and actuating means according to claim 5, wherein said spool valve has axially spaced valving sections, one of said sections being operatively associated with fluid control ports for controlling the operation of said first power acutator, and the other of said sections being operatively associated with fluid control ports for controlling the operation of said second power actuator.
Claim 9
Dependent Claim
58 words
Control and actuating means according to claim 7, in which the spool is axially shiftable between spaced limit positions, the said one of said sections being operatively connected with its associated ports in one only of said limit positions, and the other of said sections is operatively connected with its associated ports in both of said limit positions.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |