US3704853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve with differential clutching valve actuator
Assignee: Consolidated Controls Corp
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Filing: 1971-03-26
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Granted: 1972-12-05
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Expires: 1991-03-26
Abstract
Abstract A valve including a body having a seat cooperating with a valve closure member and an actuator mechanism comprising an elongated valve stem connected to the closure member and having a threaded portion intermediate its ends. Differential clutch means is associated with the valve stem for rotation therewith and/or relative slidable displacement along the length of the stem. A drive nut is rotatably driven and mounted on the valve body for engagement with the threaded portion of the stem and means is provided for rotating the drive nut. A clutch mechanism selectively interconnects the nut and the differential clutch member whereby engagement of the clutch causes rotation of the stem in response to rotation of the drive nut. A brake mechanism selectively interconnects the valve body and the differential clutch member and is operative when engaged to restrain rotation of the valve stem so that the drive nut produces longitudinal movement of the stem to open or close the valve.
Inventors
- 👤 Henry A Waller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:05
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/047; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
172 words
An actuator mechanism for use in controlling movement of a valve of the type provided with a closure member and a valve body having a valve seat cooperating with said valve closure member, comprising, in combination, an elongated valve stem connected to said valve closure member and having a threaded portion, a differential clutch member mounted on said valve stem for rotation therewith and slidable along the length thereof, a drive nut rotatably mounted in said valve body and in engagement with the threaded portion of said valve stem, power means for rotating said drive nut, a clutch mechanism interconnecting said drive nut and said differential clutch member and operative when energized to cause rotation of said valve stem in response to rotation of said drive nut, and a brake mechanism interconnecting said valve body and said differential clutch member and operative when energized to restrain rotation of said valve stem so that rotation of said drive nut produces movement of said valve stem in the direction of the longitudinal axis thereof
Claim 2
Dependent Claim
172 words
An actuator mechanism for use in controlling movement of a valve of the type provided with a closure member and a valve body having a valve seat cooperating with said valve closure member, comprising, in combination, an elongated valve stem connected to said valve closure member and having a threaded portion, a differential clutch member mounted on said valve stem for rotation therewith and slidable along the length thereof, a drive nut rotatably mounted in said valve body and in engagement with the threaded portion of said valve stem, power means for rotating said drive nut, a clutch mechanism interconnecting said drive nut and said differential clutch member and operative when energized to cause rotation of said valve stem in response to rotation of said drive nut, and a brake mechanism interconnecting said valve body and said differential clutch member and operative when energized to restrain rotation of said valve stem so that rotation of said drive nut produces movement of said valve stem in the direction of the longitudinal axis thereof
Claim 3
Dependent Claim
25 words
The combination of claim 1, wherein said clutch mechanism is air operated, and means are provided for varying the pressure of the air supplied thereto.
Claim 4
Dependent Claim
21 words
The combination of claim 2, wherein said variable air supply is connected to said clutch mechanism through said rotating drive nut.
Claim 5
Dependent Claim
23 words
The combination of claim 1, wherein said brake is air operated and means are provided for varying the pressure of air supplied thereto.
Claim 6
Dependent Claim
84 words
An actuator for controlling the rotation and longitudinal translation of an elongated valve stem relative to a support frame comprising a differential clutch member for rotating said stem and permitting longitudinal translation thereof, rotatable drive nut means threadedly engaging a portion of said stem for driving the same, first frictional clutch means for selectively coupling and uncoupling said drive nut means to said differential clutch member, and second frictional clutch means for selectively coupling and uncoupling said differential clutch means and said support frame.
Claim 7
Dependent Claim
84 words
An actuator for controlling the rotation and longitudinal translation of an elongated valve stem relative to a support frame comprising a differential clutch member for rotating said stem and permitting longitudinal translation thereof, rotatable drive nut means threadedly engaging a portion of said stem for driving the same, first frictional clutch means for selectively coupling and uncoupling said drive nut means to said differential clutch member, and second frictional clutch means for selectively coupling and uncoupling said differential clutch means and said support frame.
Claim 8
Dependent Claim
32 words
The actuator of claim 5 wherein said first and second clutch means are operable to permit controlled relative rotation between said drive nut means, said differential clutch member and said support frame.
Claim 9
Dependent Claim
24 words
The actuator of claim 6 including removable lock pin means for positively restraining rotation of said differential clutch member relative to said support frame.
Claim 10
Dependent Claim
40 words
The actuator of claim 6 wherein said first and second clutch means include pressure members disposed on opposite sides of said differential clutch member and means for selectively controlling pressure exerted by said pressure members toward said differential clutch member.
Claim 11
Dependent Claim
61 words
The actuator of claim 8 including reversible drive means for rotating said drive nut in opposite directions, said drive means including motor meAns and at least one high reduction ratio, worm gear combination between said motor means and said drive nut for restraining said nut against rotation relative to said support frame when said stem is rotated manually with respect thereto.
Claim 12
Dependent Claim
26 words
The actuator of claim 9 including control means responsive to the longitudinal position of said stem relative to said support frame for controlling said drive means.
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |