US4213336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring flow of weak cell liquor
Assignee: BASF Corp
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Filing: 1976-12-27
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Granted: 1980-07-22
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Expires: 1996-12-27
Abstract
Abstract The flow rate of weak cell liquor is determined, using a device in the form of a small box having in one wall thereof a properly sized orifice, a vertically extending slot thereabove, and a rule placed alongside the slot to make it possible to read the flow rate. A cooperating member is provided to catch the liquid passing through the device and disperse it into a plurality of small droplets while feeding it to a trough by which the weak cell liquor is collected.
Inventors
- 👤 Albert J. Schweickart
- 👤 Thomas F. Mooney, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:44
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/52
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
233 words
A device for measuring the rate of flow of weak cell liquor being discharged from a perk arm of a chlor-alkali cell, said device comprising, in combination, an open-topped box means having side walls, a back-wall and a front portion, a plate means having therein an orifice and a vertically extending slot above said orifice, said plate means having thereon and extending alongside said slot indicia adapted to identify the locations along the length of said slot, the dimensions of said orifice and said slot being such as to permit flows in the range of 3 to 7 liters per minute to be read with a sensitivity corresponding to changes of 4 to 10 milliliters per change of one liter per minute in the flow rate being metered, means sealingly securing said plate means to said front portion of said box means, and deflector means operatively associated with said box means to deflect liquid issuing from said orifice, wherein said box means further has means for mounting said box to a discharge end of a perk arm of a chlor-alkali cell, wherein said means for mounting said box means comprises a spaced pair of band-like members, each of said band-like members having upon its lower side a plurality of serrations, said band-like members extending from one to another of the side walls of said box means in the vicinity of the top thereof.
Claim 2
Independent Claim
233 words
A device for measuring the rate of flow of weak cell liquor being discharged from a perk arm of a chlor-alkali cell, said device comprising, in combination, an open-topped box means having side walls, a back-wall and a front portion, a plate means having therein an orifice and a vertically extending slot above said orifice, said plate means having thereon and extending alongside said slot indicia adapted to identify the locations along the length of said slot, the dimensions of said orifice and said slot being such as to permit flows in the range of 3 to 7 liters per minute to be read with a sensitivity corresponding to changes of 4 to 10 milliliters per change of one liter per minute in the flow rate being metered, means sealingly securing said plate means to said front portion of said box means, and deflector means operatively associated with said box means to deflect liquid issuing from said orifice, wherein said box means further has means for mounting said box to a discharge end of a perk arm of a chlor-alkali cell, wherein said means for mounting said box means comprises a spaced pair of band-like members, each of said band-like members having upon its lower side a plurality of serrations, said band-like members extending from one to another of the side walls of said box means in the vicinity of the top thereof.
Claim 3
Dependent Claim
69 words
A device as defined in claim 1, wherein said deflector means comprises a shaped sheet-like member having front, bottom, and side portions, said front portion serving to deflect weak cell liquor issuing through said orifice, said bottom portion serving to divide weak cell liquor passing through the device into a plurality of fine streams, and said side portions serving to connect said deflector means pivotally to said box means.
Claim 4
Independent Claim
219 words
A device for measuring the rate of flow of weak cell liquor being discharged from a perk arm of a chlor-alkali cell, said device comprising, in combination, an open-topped box means having side walls, a back-wall and a front portion, a plate means having therein an orifice and a vertically extending slot above said orifice, said plate means having thereon and extending alongside said slot indicia adapted to identify the locations along the length of said slot, the dimensions of said orifice and said slot being such as to permit flows in the range of 3 to 7 liters per minute to be read with a sensitivity corresponding to changes of 4 to 10 milliliters per change of one liter per minute in the flow rate being metered, means sealingly securing said plate means to said front portion of said box means, deflector means operatively associated with said box means to deflect liquid issuing from said orifice, wherein said deflector means comprises a shaped sheet-like member having front, bottom, and side portions, said front portion serving to deflect weak cell liquor issuing through said orifice, said bottom portion serving to divide weak cell liquor passing through the device into a plurality of fine streams, and said side portions serving to connect said deflector means pivotally to said box means.
Claim 5
Independent Claim
219 words
A device for measuring the rate of flow of weak cell liquor being discharged from a perk arm of a chlor-alkali cell, said device comprising, in combination, an open-topped box means having side walls, a back-wall and a front portion, a plate means having therein an orifice and a vertically extending slot above said orifice, said plate means having thereon and extending alongside said slot indicia adapted to identify the locations along the length of said slot, the dimensions of said orifice and said slot being such as to permit flows in the range of 3 to 7 liters per minute to be read with a sensitivity corresponding to changes of 4 to 10 milliliters per change of one liter per minute in the flow rate being metered, means sealingly securing said plate means to said front portion of said box means, deflector means operatively associated with said box means to deflect liquid issuing from said orifice, wherein said deflector means comprises a shaped sheet-like member having front, bottom, and side portions, said front portion serving to deflect weak cell liquor issuing through said orifice, said bottom portion serving to divide weak cell liquor passing through the device into a plurality of fine streams, and said side portions serving to connect said deflector means pivotally to said box means.
Claim 6
Dependent Claim
265 words
In a device for measuring the flow of weak cell liquor issuing from a perk arm of a chlor-alkali cell, the combination comprising, generally box-like weir-type flow-meter means for detecting a flow rate of 3 to 7 liters per minute with a sensitivity of 4 to 10 millimeters of change in head per one liter per minute of difference in flow rate, deflector means cooperating with said flow-meter means to protect an operator from the action of weak cell liquor passing through said flow-meter means, and means for supporting said flow-meter means in an operative position in spaced relationship to a discharge end of said perk arm, said means for supporting said flow-meter means in an operative position being means supporting said flow-meter means in dependent relation from said perk arm and including a spaced pair of band-like members, each of said band-like members having upon its lower side a plurality of serrations, said band-like members extending from one to another of the side walls of said box-like flow-meter means in the vicinity of the top thereof, said deflector means comprising a shaped sheet-like member having front, bottom, and side portions, said front portion serving to deflect weak cell liquor issuing through said orifice, said bottom portion serving to divide weak cell liquor passing through the device into a plurality of fine streams, and said side portions serving to connect said deflector means pivotally to said box means, said combination further being such that said deflector means are mounted to said box means for pivotal movement with respect thereto, whereby said device may be leveled.
Claim 7
Dependent Claim
265 words
In a device for measuring the flow of weak cell liquor issuing from a perk arm of a chlor-alkali cell, the combination comprising, generally box-like weir-type flow-meter means for detecting a flow rate of 3 to 7 liters per minute with a sensitivity of 4 to 10 millimeters of change in head per one liter per minute of difference in flow rate, deflector means cooperating with said flow-meter means to protect an operator from the action of weak cell liquor passing through said flow-meter means, and means for supporting said flow-meter means in an operative position in spaced relationship to a discharge end of said perk arm, said means for supporting said flow-meter means in an operative position being means supporting said flow-meter means in dependent relation from said perk arm and including a spaced pair of band-like members, each of said band-like members having upon its lower side a plurality of serrations, said band-like members extending from one to another of the side walls of said box-like flow-meter means in the vicinity of the top thereof, said deflector means comprising a shaped sheet-like member having front, bottom, and side portions, said front portion serving to deflect weak cell liquor issuing through said orifice, said bottom portion serving to divide weak cell liquor passing through the device into a plurality of fine streams, and said side portions serving to connect said deflector means pivotally to said box means, said combination further being such that said deflector means are mounted to said box means for pivotal movement with respect thereto, whereby said device may be leveled.
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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) | 1983-07-22 | 1984-01-21 | 1984-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-22 | 1988-01-21 | 1988-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-22 | 1992-01-21 | 1992-07-22 | $7700.00 | Window Closed / Lapsed |