US3623692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting mold
Assignee: Georg Fischer AG
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Filing: 1969-05-26
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Granted: 1971-11-30
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Expires: 1989-05-26
Abstract
Abstract There is disclosed a casting mold with at least one pouring basin arranged at the top or upper side of the upper part of the mold. This pouring basin is in flow communication with a number of pour-in openings or gates through the agency of channels or troughs. According to an important aspect of the invention, the channel depth is greater than the minimum depth of a channel necessary to prevent overflow during the pouring-in operation, but the channel depth does not drop below the highest location of the mold cavity.
Inventors
- 👤 Erwin Buhrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:25
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
A casting mold comprising a mold upper part and a mold lower part, at least one pouring basin means arranged at the top of said mold upper part, a plurality of pour-in openings, channel means for communicating said pouring basin means with said plurality of pour-in openings, said channel means being dimensioned such that during casting said channel means can at least take up the difference in the quantity of liquid metal between the supply out of a casting ladle and the outflow from said pour-in openings, but with said channel means possessing a channel depth greater than the minimum depth of a channel necessary for the taking up said difference and for preventing overflow during casting, yet wherein such channel depth does not fall beneath the highest location of the mold cavity and is located at least in close proximity to such highest location, the bottoms of said channel means sloping downwardly in a direction towards said pour-in openings.
Claim 2
Dependent Claim
160 words
A casting mold comprising a mold upper part and a mold lower part, at least one pouring basin means arranged at the top of said mold upper part, a plurality of pour-in openings, channel means for communicating said pouring basin means with said plurality of pour-in openings, said channel means being dimensioned such that during casting said channel means can at least take up the difference in the quantity of liquid metal between the supply out of a casting ladle and the outflow from said pour-in openings, but with said channel means possessing a channel depth greater than the minimum depth of a channel necessary for the taking up said difference and for preventing overflow during casting, yet wherein such channel depth does not fall beneath the highest location of the mold cavity and is located at least in close proximity to such highest location, the bottoms of said channel means sloping downwardly in a direction towards said pour-in openings.
Claim 3
Dependent Claim
45 words
A casting mold as defined in claim 1, further including a plurality of said pouring basin means only connected with their associated pour-in openings via said channel means, said mold being divided into a number of mold portions communicating with an associated pouring basin means.
Claim 4
Dependent Claim
33 words
A casting mold as defined in claim 1, wherein said pouring basin means together with the associated channel means possess different depths accommodated to the corresponding highest location of the associated mold cavity.
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |