US Patent: 3,615,880
|
| FERROUS METAL DIE CASTING PROCESS AND PRODUCTS
|
|
Patentees:
|
| Ronald L. Bartu (exact or similar names) - Wickliffe, OH |
| Dallas T. Hurd (exact or similar names) - Gates Mills, OH |
|
|
Patent Dates:
|
| Applied: |
Apr. 03, 1968 |
| Granted: |
Oct. 26, 1971 |
|
Patent Pictures:
[
1 | 2
]
|
|
Patent 3615880 - edited drawing |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The patent describes materials and processes relating to metal casting, with considerations for how temperature of melted metals and molds relates to strength, etc. of completed product.
The patent is cited by number on known examples of copper-beryllium alloy wrenches made by Specialty Tools, Inc. (Oklahoma City, OK). See also patent 3,762,244 for jaw design of these wrenches. |
|
){kind=link}
){kind=link}