US3860028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid level control system and fluid level actuated controller therefor
Assignee: ATLAS VALVE CO
•
Filing: 1973-01-22
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Granted: 1975-01-14
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Expires: 1993-01-22
Abstract
Abstract A system for monitoring the fluid level in a tank having a fluid level actuated controller for sending a modulated signal to at least one or more control valves each performing separate functions to maintain the fluid in the tank between predetermined minimum and predetermined maximum levels. Additionally, a fluid level actuated controller having at least one or more pilot valve assemblies therein each adapted to deliver a modulated fluid signal for operating an associated control device such as a control valve in a fluid level control system, and fluid level actuated means operatively connected to the pilot valve assemblies for varying the modulated signal delivered by each respective pilot valve assembly as a function of the fluid level being monitored, and means for adjusting engagement of each of said pilot valve assemblies with the liquid level actuated means.
Inventors
- 👤 Beal P Moore
- 👤 Raymond J Dussia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:51
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7303; Y10T137/7358; Y10T137/7365; Y10T137/7368; Y10T137/7371; Y10T137/7439; Y10T137/7478; Y10T137/8593; Y10T137/87056; Y10T137/87064
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
353 words
A control valve responsive to the level of process fluid in a reservoir for delivering a modulated pressure fluid signal including, a. a valve body having a connecting means thereon for attaching said valve body to the reservoir, b. said valve body having an inlet for pressure fluid and an outlet for delivering signal pressure fluid, c. pilot valve assembly means disposed in said valve body between said inlet and outlet to modulate the flow of signal pressure fluid responsive to change in the level of process fluid in said reservoir, d. said pilot valve assembly means including, 1. a valve chamber in said valve body in communication with said inlet and outlet, 2. a valve seat means mounted in said valve body and forming a valve port therethrough in communication with said valve chamber to pass pressure fluid from the inlet to the outlet for the valve body, 3. a tapered valVe head mounted for slidable movement in the valve body towards and away from the valve seat means normally disposed to maintain said valve port closed, 4. said valve body having a bore in alignment with the valve seat means communicating at one end with said valve chamber and at the end remote therefrom opening onto the exterior of said valve body, 5. a valve stem slidably mounted in said bore connected at one end to the tapered valve head and having sufficient length to extend beyond the exterior of the valve body, and 6. an adjustable bleed means in said valve body in communication with the valve chamber on the inlet side of the valve seat means to regulate the rate of response of said control valve, e. level responsive means movably connected on said valve body for engagement with the exterior portion of the valve stem to actuate the tapered valve head from fully open to fully closed positions relative the valve port responsive to the level of the process fluid in the reservoir and f. adjustable means on the valve body operatively disposed to vary the position of engagement between the valve stem and the level responsive means.
Claim 2
Dependent Claim
353 words
A control valve responsive to the level of process fluid in a reservoir for delivering a modulated pressure fluid signal including, a. a valve body having a connecting means thereon for attaching said valve body to the reservoir, b. said valve body having an inlet for pressure fluid and an outlet for delivering signal pressure fluid, c. pilot valve assembly means disposed in said valve body between said inlet and outlet to modulate the flow of signal pressure fluid responsive to change in the level of process fluid in said reservoir, d. said pilot valve assembly means including, 1. a valve chamber in said valve body in communication with said inlet and outlet, 2. a valve seat means mounted in said valve body and forming a valve port therethrough in communication with said valve chamber to pass pressure fluid from the inlet to the outlet for the valve body, 3. a tapered valVe head mounted for slidable movement in the valve body towards and away from the valve seat means normally disposed to maintain said valve port closed, 4. said valve body having a bore in alignment with the valve seat means communicating at one end with said valve chamber and at the end remote therefrom opening onto the exterior of said valve body, 5. a valve stem slidably mounted in said bore connected at one end to the tapered valve head and having sufficient length to extend beyond the exterior of the valve body, and 6. an adjustable bleed means in said valve body in communication with the valve chamber on the inlet side of the valve seat means to regulate the rate of response of said control valve, e. level responsive means movably connected on said valve body for engagement with the exterior portion of the valve stem to actuate the tapered valve head from fully open to fully closed positions relative the valve port responsive to the level of the process fluid in the reservoir and f. adjustable means on the valve body operatively disposed to vary the position of engagement between the valve stem and the level responsive means.
Claim 3
Dependent Claim
35 words
a valve seat means mounted in said valve body and forming a valve port therethrough in communication with said valve chamber to pass pressure fluid from the inlet to the outlet for the valve body,
Claim 4
Dependent Claim
35 words
a valve seat means mounted in said valve body and forming a valve port therethrough in communication with said valve chamber to pass pressure fluid from the inlet to the outlet for the valve body,
Claim 5
Dependent Claim
43 words
In a control valve as claimed in claim 1 including, pivot means on said level responsive means for pivotally connecting the level responsive means onto the valve body and to engage the exterior portion of the valve stem in any adjusted position thereof.
Claim 6
Dependent Claim
36 words
a valve seat means mounted in said valve body and forming a valve port therethrough in communication with a given valve chamber to pass pressure fluid from the given inlet means to its associated outlet means,
Claim 7
Dependent Claim
36 words
a valve seat means mounted in said valve body and forming a valve port therethrough in communication with a given valve chamber to pass pressure fluid from the given inlet means to its associated outlet means,
Claim 8
Dependent Claim
28 words
a tapered valve head mounted for slidable movement in the valve body towards and away from the valve seat means normally disposed to maintain the valve port closed,
Claim 9
Dependent Claim
28 words
a tapered valve head mounted for slidable movement in the valve body towards and away from the valve seat means normally disposed to maintain the valve port closed,
Claim 10
Dependent Claim
36 words
In a control valve as claimed in claim 1 wherein the adjustable means to vary the relative position of engagement includes, means connected to the valve seat means mounted for adjustable movement in the valve body.
Claim 11
Dependent Claim
28 words
a tapered valVe head mounted for slidable movement in the valve body towards and away from the valve seat means normally disposed to maintain said valve port closed,
Claim 12
Dependent Claim
28 words
a tapered valVe head mounted for slidable movement in the valve body towards and away from the valve seat means normally disposed to maintain said valve port closed,
Claim 13
Dependent Claim
35 words
said valve body having a bore in alignment with the valve seat means communicating at one end with said valve chamber and at the end remote therefrom opening onto the exterior of said valve body,
Claim 14
Dependent Claim
35 words
said valve body having a bore in alignment with the valve seat means communicating at one end with said valve chamber and at the end remote therefrom opening onto the exterior of said valve body,
Claim 15
Dependent Claim
119 words
In a control valve as claimed in claim 1 including, a. means mounted for movement in said valve body parallel to the axial line of the valve stem, b. pivot means in said level responsive means pivotally connected and movable with one end of the means movable parallel to the axial line of the valve stem to permit said pivot means to engage the exterior portion of the valve stem in any adjusted position thereof, and c. means on said means movable parallel to the axial line of the valve stem for adjustably positioning the same to vary the pivotal movement of said pivot means as a function of the desired level of the process fluid to be maintained.
Claim 16
Dependent Claim
49 words
said valve body having at least two bores and having one of said bores in alignment with each respective valve seat means so as to communicate at one end with the associated valve chamber and at the end remote therefrom to opening onto the exterior of said valve body,
Claim 17
Dependent Claim
49 words
said valve body having at least two bores and having one of said bores in alignment with each respective valve seat means so as to communicate at one end with the associated valve chamber and at the end remote therefrom to opening onto the exterior of said valve body,
Claim 18
Dependent Claim
34 words
a valve stem slidably mounted in each of said bores and connected at one end to a tapered valve head and having sufficient length to extend beyond the exterior of the valve body, and
Claim 19
Dependent Claim
34 words
a valve stem slidably mounted in each of said bores and connected at one end to a tapered valve head and having sufficient length to extend beyond the exterior of the valve body, and
Claim 20
Dependent Claim
31 words
a valve stem slidably mounted in said bore connected at one end to the tapered valve head and having sufficient length to extend beyond the exterior of the valve body, and
Claim 21
Dependent Claim
31 words
a valve stem slidably mounted in said bore connected at one end to the tapered valve head and having sufficient length to extend beyond the exterior of the valve body, and
Claim 22
Dependent Claim
120 words
In a control valve as claimed in claim 1 wherein the level responsive means includes, a. a member rotatably mounted in the valve body for movement about an axis parallel to the axial line of the valve body, b. a float member at one end of said rotatable member for rotating the same responsive to the rise and fall in the level of the process fluid, c. at least one actuating arm connected to the rotatable member at a point remote from the float means and rotatable therewith, d. said actuating arm positioned for operative engagement with the valve stem to move the valve stem as a function of the change in level of the process fluid in the reservoir.
Claim 23
Dependent Claim
75 words
In a control valve as claimed in claim 5 including, a. scale means connected to the exterior of the valve body to show the relative level of the process fluid in the reservoir, b. said rotatable member having one end extending to the exterior of the valve body adjacent said scale means, and c. an indicator member connected to the exterior end of the rotatable member and disposed for operative association with the scale member.
Claim 24
Dependent Claim
106 words
an adjustable bleed means in said valve body in communication with the valve chamber on the inlet side of the valve seat means to regulate the rate of response of said control valve, e. level responsive means movably connected on said valve body for engagement with the exterior portion of the valve stem to actuate the tapered valve head from fully open to fully closed positions relative the valve port responsive to the level of the process fluid in the reservoir and f. adjustable means on the valve body operatively disposed to vary the position of engagement between the valve stem and the level responsive means.
Claim 25
Dependent Claim
106 words
an adjustable bleed means in said valve body in communication with the valve chamber on the inlet side of the valve seat means to regulate the rate of response of said control valve, e. level responsive means movably connected on said valve body for engagement with the exterior portion of the valve stem to actuate the tapered valve head from fully open to fully closed positions relative the valve port responsive to the level of the process fluid in the reservoir and f. adjustable means on the valve body operatively disposed to vary the position of engagement between the valve stem and the level responsive means.
Claim 26
Dependent Claim
124 words
an adjustable means in said valve body for each pilot valve assembly in communication with the associated valve chamber therefor on the inlet side of the valve seat means to regulate the rate of response of said control valve, e. level responsive means movably connected on said valve body for alternate engagement with the exterior portion of at least one valve stem to actuate the tapered valve head of a given pilot valve assembly from fully open to fully closed position relative the valve port responsive to the change in the level of the process fluid in the reservoir, and f. adjustable means on the valve body operatively disposed to vary the position of engagement between the valve stem and the level responsive means.
Claim 27
Dependent Claim
124 words
an adjustable means in said valve body for each pilot valve assembly in communication with the associated valve chamber therefor on the inlet side of the valve seat means to regulate the rate of response of said control valve, e. level responsive means movably connected on said valve body for alternate engagement with the exterior portion of at least one valve stem to actuate the tapered valve head of a given pilot valve assembly from fully open to fully closed position relative the valve port responsive to the change in the level of the process fluid in the reservoir, and f. adjustable means on the valve body operatively disposed to vary the position of engagement between the valve stem and the level responsive means.
Claim 28
Dependent Claim
122 words
A control valve responsive to the level of process fluid in a reservoir for delivering a plurality of modulated fluid signals including, a. a valve body having a connecting means thereon for attaching the valve body to the reservoir, b. said valve body having at least two inlet means for pressure fluid and at least two outlet means associated respectively with said two inlet means, said outlet means for delivering signal pressure fluid therefrom, c. pilot valve assembly means disposed in said valve body between each associated pair of inlet Means and outlet means to modulate the flow of signal pressure fluid responsive to change in the level of process fluid in said reservoir, d. each of said pilot valve assemblies including,
Claim 29
Dependent Claim
122 words
A control valve responsive to the level of process fluid in a reservoir for delivering a plurality of modulated fluid signals including, a. a valve body having a connecting means thereon for attaching the valve body to the reservoir, b. said valve body having at least two inlet means for pressure fluid and at least two outlet means associated respectively with said two inlet means, said outlet means for delivering signal pressure fluid therefrom, c. pilot valve assembly means disposed in said valve body between each associated pair of inlet Means and outlet means to modulate the flow of signal pressure fluid responsive to change in the level of process fluid in said reservoir, d. each of said pilot valve assemblies including,
Claim 30
Dependent Claim
44 words
In a control valve as claimed in claim 7 including, a pivot means on said level responsive means for pivotally connecting the level responsive means onto the valve body and to engage the exterior portion of the valve stem in any adjusted position thereof.
Claim 31
Dependent Claim
40 words
In a control valve as claimed in claim 7 wherein the adjustable means to vary the relative position of engagement is connected to the valve seat means, and said valve seat means is movable on movement of the adjustable means.
Claim 32
Dependent Claim
119 words
A control valve as claimed in claim 7 including, a. means mounted for movement in said valve body parallel to the axial line of the valve stem, b. pivot means in said level responsive means pivotally connected and movable with one end of the means movable parallel to the axial line of the valve stem to permit said pivot means to engage the exterior portion of each respective valve stem in any adjusted position thereof, and c. means on said means movable parallel to the axial line of the valve body for adjustably positioning the same to vary the pivotal movement of said pivot means as a function of the desired level of the process fluid to be maintained.
Claim 33
Dependent Claim
126 words
In a control valve as claimed in claim 7 wherein the level responsive means includes: a. a member rotatably mounted in the valve body for movement about an axis parallel to the axial line of the valve body, b. a float member at one end of said rotatable member for rotating the same responsive to the rise and fall in the level of the process fluid, c. at least two acutating arms adjustably connectible to the rotatable member at a point remote from the float means and rotatable therewith, d. each of said actuating arms positioned for operative engagement with at least one valve stem to move the associated valve stem as a function of the change in level of the process fluid in the reservoir.
Claim 34
Dependent Claim
75 words
In a control valve as claimed in claim 11 including, a. scale means connected to the exterior of the valve body to show the relative level of the process fluid in the reservoir, b. said rotatable member having one end extending to the exterior of the valve body adjacent said scale means, and c. an indicator member connected to the exterior end of the rotatable member and disposed for operative association with the scale member.
Claim 35
Dependent Claim
166 words
In a control valve as claimed in claim 11 including, a. at least one other valve body in alignment with the valve body, b. said other valve body having at least two other inlet means for pressure fluid and at least two other outlet means associated respectively with said two other inlet means, said other outlet means for delivering signal pressure fluid, c. a second plurality of pilot valve assembly means identical to said first mentioned pilot valve assembly means in said other valve body between each associated pair of other inlet valve means and other outlet valve means for providing a modulated signal pressure fluid to be delivered by a given other outlet means on actuation of the associated pilot valve assembly means therefor, and d. said level responsive means having means connected thereto for operative association with said second plurality of pilot valve assembly means to acuatet the same as a function of the change of level of the process fluid in the reservoir.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |