A method for manufacturing nails

Nails (14) suitable for outdoor use, such as roofing nails, are formed from carbon steel wire (10) pre-coated with a metallic layer (12), which has corrosion-resistant properties, such as a zinc layer applied by pre-galvanizing the wire. Each nail (14) is formed with a shank (18) and with a head (16...

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Bibliographic Details
Main Authors SHELTON, LAWRENCE S, LAT, GERONIMO E, GABRIEL, WILLIAM LEON, HEMINGER, DAVID
Format Patent
LanguageEnglish
French
German
Published 11.12.1991
Subjects
BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MAKING NEEDLES, PINS OR NAILS OF METAL
MECHANICAL ENGINEERING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
THERMAL INSULATION IN GENERAL
TRANSPORTING
WEAPONS
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Summary:Nails (14) suitable for outdoor use, such as roofing nails, are formed from carbon steel wire (10) pre-coated with a metallic layer (12), which has corrosion-resistant properties, such as a zinc layer applied by pre-galvanizing the wire. Each nail (14) is formed with a shank (18) and with a head (16). The metallic layer is discontinuous in a region (22) on the head (16) of each nail (14). The nails are collated by means of collating wires (24) welded to the shanks of the nails (14). The collated nails are coiled. The coiled nails are cleaned in a cleaning bath, such as 1,1,1,trichloroethane. The cleaned nails are coated with a polymeric layer, which covers the region (22) on the head (16) of each nail (14) where the metallic layer is discontinuous, thus restoring the corrosion-resistant properties of the nails (14).
Bibliography:Application Number: EP19910304750