US3599835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing apparatus for and methods of casting
Assignee: Friedrich Kocks GmbH and Co
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Filing: 1968-11-03
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Granted: 1971-08-17
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Expires: 1988-11-03
Abstract
Abstract A method and apparatus are provided for maintaining a constant casting speed in casting molds by the steps of weighing the molten metal before casting, weighing the molten metal at least at spaced time intervals during casting and adjusting the flow of steel into said casting mold at said spaced time intervals to discharge a substantially identical weight amount in each time interval. An apparatus for maintaining a constant speed in casting provides a pouring ladle, discharge means on the ladle, weighing means supporting said ladle, a voltage transmitter sensitive to weight change connected to the weighing means and transmitting a voltage proportional to a change in weight, a voltage comparator receiving the transmitted voltage, comparing the same with a standard voltage representing a desired casting speed and transmitting a signal indicating a deviation from the standard.
Inventors
- 👤 Friedrich Kocks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:40
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/18; G01G23/36; G01G23/365; B; B22; B22D; B22D39/00; B22D39/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
111 words
A method for maintaining a constant casting speed in casting into casting molds which comprises the steps of: a. weighing the molten metal before casting; b. weighing the molten metal at spaced equal time intervals during casting; c. transmitting a voltage proportional to each change in weight; d. comparing said transmitted voltage with a standard changing voltage representing a desired casting speed; e. transmitting a signal indicating the deviation of the transmitted voltage from the standard and from the transmitted signal so as to discharge a substantially identical weight amount in each time interval; and f. adjusting the flow of steel into the casting mold at said spaced equal time intervals.
Claim 2
Independent Claim
111 words
A method for maintaining a constant casting speed in casting into casting molds which comprises the steps of: a. weighing the molten metal before casting; b. weighing the molten metal at spaced equal time intervals during casting; c. transmitting a voltage proportional to each change in weight; d. comparing said transmitted voltage with a standard changing voltage representing a desired casting speed; e. transmitting a signal indicating the deviation of the transmitted voltage from the standard and from the transmitted signal so as to discharge a substantially identical weight amount in each time interval; and f. adjusting the flow of steel into the casting mold at said spaced equal time intervals.
Claim 3
Dependent Claim
62 words
A method as claimed in claim 1 wherein the flow of steel is adjusted automatically by comparing the weight change as represented by the transmitted voltage in any time period with a preselected standard weight change for a like time period as represented by the standard voltage and adjusting the flow to equal the difference in voltage represented by said weight change.
Claim 4
Independent Claim
81 words
An apparatus for maintaining a constant casting speed in casting into molds comprising a pouring ladle, discharge means on said ladle, weighing means supporting said pouring ladle, a voltage transmitter sensitive to weight change connected to said weighing means and transmitting an electrical voltage proportional to a change in weight, a voltage comparator receiving said transmitted voltage and comparing the same with a standard changing voltage representing a desired casting speed and transmitting a signal indicating a deviation from the standard.
Claim 5
Independent Claim
81 words
An apparatus for maintaining a constant casting speed in casting into molds comprising a pouring ladle, discharge means on said ladle, weighing means supporting said pouring ladle, a voltage transmitter sensitive to weight change connected to said weighing means and transmitting an electrical voltage proportional to a change in weight, a voltage comparator receiving said transmitted voltage and comparing the same with a standard changing voltage representing a desired casting speed and transmitting a signal indicating a deviation from the standard.
Claim 6
Dependent Claim
35 words
An apparatus as claimed in claim 3 wherein the signal indicating a deviation is delivered to a drive means controlling the ladle discharge means to vary the rate of flow whereby to neutralize the signal.
Claim 7
Dependent Claim
15 words
An apparatus as claimed in claim 3 wherein the weighing means is a strain gage.
Claim 8
Dependent Claim
19 words
An apparatus as claimed in claim 3 wherein the voltage transmitter is a potentiometer operated by the weighing 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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |