US4687045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile-casting ingot mold
Assignee: Individual
•
Filing: 1986-03-31
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Granted: 1987-08-18
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Expires: 2006-03-31
Abstract
Abstract High casting rates and consistently precise dimensions of lead and lead alloy projectiles are obtained with an ingot mold comprising two like ingot mold halves having abutting sides and upper and lower sides extending outwardly therefrom, the abutting mold half sides defining like cavity halves open towards the upper sides of the mold halves and forming a mold cavity for casting the projectile. Each mold half consists essentially of a first part of a metal having a high wettability for the lead or lead alloy being cast, the first metal parts of the mold halves defining the mold cavity, and a second part of a metal having a higher thermal conductivity than the first metal part, the second metal part being in heat conducting contact with the first part.
Inventors
- 👤 Johannes Roller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:18
CPC Classifications
B; B22; B22D; B22D15/00; B22D25/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
124 words
An ingot mold for casting a lead or lead alloy projectile, the mold comprising two like ingot mold halves having abutting sides and upper and lower sides extending outwardly therefrom, the abutting mold half sides defining like cavity halves open towards the upper sides of the mold halves and forming a mold cavity for casting the projectile, and each mold half consisting essentially of a first part of a metal having a high wettability for the lead or lead alloy being cast, the first metal parts of the mold halves defining the mold cavity, and a second part of a metal having a higher thermal conductivity than the first metal part, the second metal part being in heat conducting contact with the first part.
Claim 2
Dependent Claim
124 words
An ingot mold for casting a lead or lead alloy projectile, the mold comprising two like ingot mold halves having abutting sides and upper and lower sides extending outwardly therefrom, the abutting mold half sides defining like cavity halves open towards the upper sides of the mold halves and forming a mold cavity for casting the projectile, and each mold half consisting essentially of a first part of a metal having a high wettability for the lead or lead alloy being cast, the first metal parts of the mold halves defining the mold cavity, and a second part of a metal having a higher thermal conductivity than the first metal part, the second metal part being in heat conducting contact with the first part.
Claim 3
Dependent Claim
22 words
The projectile-casting ingot mold according to claim 1, wherein the first metal part has a smaller volume than the second metal part.
Claim 4
Dependent Claim
68 words
A projectile-casting ingot mold according to claim 2, further comprising a shear cover lying on the upper sides of the ingot mold halves and having an iron part defining pouring holes equal in number to a number of projectile-forming cavities in the mold and an aluminum part mounted on the iron part and defining a pouring trough communicating with the pouring holes, the pouring holes having shearing edges.
Claim 5
Dependent Claim
17 words
A projectile-casting ingot mold according to claim 2, wherein the first metal part is an iron part.
Claim 6
Dependent Claim
18 words
A projectile-casting ingot mold according to claim 2, wherein the first metal part is a cast iron part.
Claim 7
Dependent Claim
17 words
A projectile-casting ingot mold according to claim 2, wherein the first metal part is a steel part.
Claim 8
Dependent Claim
17 words
A projectile-casting ingot mold according to claim 2, wherein the second metal part is an aluminum part.
Claim 9
Dependent Claim
20 words
A projectile-casting ingot mold according to claim 2, wherein the first metal part is embedded in the second metal part.
Claim 10
Dependent Claim
36 words
A projectile-casting ingot mold according to claim 2, wherein the second metal part is embedded in the first metal part, the first metal part constituting the upper, lower and abutting sides of the ingot mold half.
Claim 11
Dependent Claim
22 words
A projectile-casting ingot mold according to claim 2, wherein the first metal part constitutes the upper side of the ingot mold half.
Claim 12
Dependent Claim
25 words
A projectile-casting ingot mold according to claim 10, wherein the first metal part has fine grooves on that upper side of the ingot mold half.
Claim 13
Dependent Claim
21 words
A projectile-casting ingot mold half according to claim 2, wherein the second metal part is provided with outwardly open cooling slots.
References Cited (Backward Citations)
US904273A
Cited
US1584954A
Cited
US1884291A
Cited
US1910015A
Cited
US2114015A
Cited
US3745873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |