Invention Grant
- Patent Title: Method for manufacturing nails
- Patent Title (中): 制造指甲的方法
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Application No.: US535015Application Date: 1990-06-08
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Publication No.: US5033181APublication Date: 1991-07-23
- Inventor: Geronimo Lat , William L. Gabriel , David Heminger , Lawrence S. Shelton
- Applicant: Geronimo Lat , William L. Gabriel , David Heminger , Lawrence S. Shelton
- Applicant Address: IL Glenview
- Assignee: Illinois Tool Works Inc.
- Current Assignee: Illinois Tool Works Inc.
- Current Assignee Address: IL Glenview
- Main IPC: B21G5/00
- IPC: B21G5/00 ; B21G3/20 ; F16B15/00 ; F16B15/08
Abstract:
Nails suitable for outdoor use, such as, for example, roofing nails, are formed from carbon steel wire precoated with a metallic layer, which has corrosion-resistant properties, such as, for example, a zinc layer applied by pre-galvanizing the stock carbon steel wire. Each nail is formed with a shank and with a head. The metallic layer is discontinuous within a region formed upon the head of each nail. The nails are collated by means of collating wires welded to the shanks of the nails. The collated nails are coiled. The coiled nails are cleaned in a cleaning bath, such as, for example, 1,1,trichloroethane. The cleaned nails are coated with a polymeric layer, which covers the region of the head of each nail where the metallic layer is discontinuous, thus restoring the corrosion-resistant properties of the nails.
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