Method and apparatus for laser welding of flat stamped...

Details Method and apparatus for laser welding of flat stamped... Method and apparatus for laser welding of flat stamped...

2006-10-17

2006-10-17

Tolan, Ed (Department: 3725)

Threaded, headed fastener, or washer making: process and apparat

Process

Making headed fastener, e.g., rivet or nail, etc.

C470S040000, C470S044000, C470S164000

Reexamination Certificate

active

07121952

ABSTRACT:
A pneumatic or manual impact operated nailer requires fasteners in a clip, typically of about 100 fasteners. The invention provides uniform well-bonded fasteners in a clip for use in a pneumatic or manual nailer, the clips being adhesive-free. In addition, this invention provides a method and apparatus for manufacturing such adhesive-free clips by press-forming the fasteners, placing them in proper orientation in a fixture on a rotatable turret rotating the turret to a welding location, spot welding or seam welding the fasteners, and rotating the turret to a clip unloading station. The clip product is also disclosed.

REFERENCES:
patent: 3835991 (1974-09-01), Brecht
patent: 3861526 (1975-01-01), Leistner
patent: 4002098 (1977-01-01), Colechia
patent: 4532399 (1985-07-01), Jones
patent: 4679975 (1987-07-01), Leistner
patent: 5058228 (1991-10-01), Wright et al.
patent: 6729962 (2004-05-01), Coleman, Sr.

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