Patent US4020977A successfully refreshed from Google Patents.
US4020977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous flow ratio monitor
Assignee: Individual
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Filing: 1976-01-26
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Granted: 1977-05-03
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Expires: 1996-01-26
Abstract
Abstract A solution dispensing proportioner utilizing a varyingly pressurized solvent and a solute having a vagrant negative gauge pressure and a tracer that is detectable in proportion to its concentration. The proportioner aspirates the solute and tracer through a conduit, which may have metering flow valves ahead of the confluence in one embodiment, and then for a progressive check of the proportion of the solution after confluence by comparing the light transmissivity of the inflowing solute and the outflowing solution, respectively. The viewing is through windows in close proximity to each other where the relative depths of the flowing streams of solute and solution, as viewed, are substantially inversely proportional to the desired percentage of solute in the solution as corrected for a null point traverse by adjusting the solute valve to provide the ratio desired for the solute and solvent in the final solution. The tracer supply is variable to optimize the null point appraisal.
Inventors
- 👤 Valentine Hechler, IV
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:45
CPC Classifications
G; G05; G05B; G05B11/00; G01; G01N; G01N21/00; G01N21/84; G01N21/85
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
In combination with a device dispensing a solution under pressure, a housing defining a compartment having a chamber for a tracer dye, piston means mounted in sealed relationship in said chamber separating it into at least one collapsible compartment; means for supplying pressure against said piston means to collapse said compartment and including a flow passage supplied by at least one of said solution elements having a flow restriction downstream from said chamber, and means for delivering tracer dye from said collapsible compartment to a conduit conducting solute at a pressure less than said supply pressure and including a passage having a flow control valve at the outlet of said collapsible compartment and connected to said solute conducting conduit.
Claim 2
Dependent Claim
119 words
In combination with a device dispensing a solution under pressure, a housing defining a compartment having a chamber for a tracer dye, piston means mounted in sealed relationship in said chamber separating it into at least one collapsible compartment; means for supplying pressure against said piston means to collapse said compartment and including a flow passage supplied by at least one of said solution elements having a flow restriction downstream from said chamber, and means for delivering tracer dye from said collapsible compartment to a conduit conducting solute at a pressure less than said supply pressure and including a passage having a flow control valve at the outlet of said collapsible compartment and connected to said solute conducting conduit.
Claim 3
Dependent Claim
38 words
The combination defined in claim 1 including means controlling simultaneous flow in said passages including a valve controlling flow of solvent in the first passage and means introducing the tracer dye into said solute supplied to said solution.
Claim 4
Dependent Claim
111 words
A tracer supply means comprising a housing having a storage chamber for a tracer dye, piston means slidably mounted in sealed relationship in said chamber separating it into at least one contractible reservoir compartment, liquid means for applying pressure against said piston to contract said compartment and including a liquid flow outlet passage having a flow restricting means downstream of said reservoir compartment, valve means controlling outflow of tracer dye under presure from said reservoir compartment, conduit means for conducting flowing liquid in communication with the tracer dye outlet of said valve means, and means for controlling simultaneous "flow" and "no flow" conditions of said liquid means and tracer dye flows.
Claim 5
Dependent Claim
111 words
A tracer supply means comprising a housing having a storage chamber for a tracer dye, piston means slidably mounted in sealed relationship in said chamber separating it into at least one contractible reservoir compartment, liquid means for applying pressure against said piston to contract said compartment and including a liquid flow outlet passage having a flow restricting means downstream of said reservoir compartment, valve means controlling outflow of tracer dye under presure from said reservoir compartment, conduit means for conducting flowing liquid in communication with the tracer dye outlet of said valve means, and means for controlling simultaneous "flow" and "no flow" conditions of said liquid means and tracer dye flows.
Claim 6
Dependent Claim
135 words
A tracer dispensing supply means comprising a body having a chamber for storing a tracer having openings at opposite ends, piston means mounted in sealed relationship in said chamber between said openings separating it into at least one collapsible compartment to discharge tracer therefrom through one of said openings in predetermined amounts including a valve controlling the flow, means for mixing the tracer with a stream of flowing solute, means for mixing the solute with a solvent under flowing pressure of the solvent to provide a flowing solution, conduit means conducting the flowing solution in communication with the other opening, and flow controlling means downstream of said other opening inducing a pressure upon said flowing solution effective through said other opening to urge collapse of said compartment to discharge tracer therefrom to said flowing solute.
Claim 7
Dependent Claim
135 words
A tracer dispensing supply means comprising a body having a chamber for storing a tracer having openings at opposite ends, piston means mounted in sealed relationship in said chamber between said openings separating it into at least one collapsible compartment to discharge tracer therefrom through one of said openings in predetermined amounts including a valve controlling the flow, means for mixing the tracer with a stream of flowing solute, means for mixing the solute with a solvent under flowing pressure of the solvent to provide a flowing solution, conduit means conducting the flowing solution in communication with the other opening, and flow controlling means downstream of said other opening inducing a pressure upon said flowing solution effective through said other opening to urge collapse of said compartment to discharge tracer therefrom to said flowing solute.
Claim 8
Dependent Claim
25 words
The combination called for in claim 4 including valve means for controlling the discharge of tracer and controlling the flow of solvent to said solute.
References Cited (Backward Citations)
US3938550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |