US Patent: 4,353,164
|
| Draw punch
|
|
Patentees:
|
| Wayne Linquist (exact or similar names) - Rockford, IL |
| Vernon W. Pearson (exact or similar names) - Rockford, IL |
|
|
Patent Dates:
|
| Applied: |
Mar. 20, 1981 |
| Granted: |
Oct. 12, 1982 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
Vintage Machinery entry for Ex-Cell-O Corp.
Vintage Machinery entry for Greenlee Brothers & Co.
|
|
Description: |
| This metal punch cuts holes in electrical outlet boxes and the like, and splits the slug into two pieces for easier removal. This patent number has been seen in a 1988 Greenlee catalog, for SlugBuster and SlugSplitter punches. These punches are intended to be used with their hydraulic punch drivers and high capacity ratchet punch drivers. This patent's specification references patents 1,817,223, 2,221,904, 2,237,069, and 3,269,011. |
|
