Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1997-02-25
1999-12-28
Silbaugh, Jan H.
Metal working
Method of mechanical manufacture
Assembling or joining
29417, 132 764, 264131, 264138, 264162, 264293, B29C 3702, A45D 2904
Patent
active
060064137
ABSTRACT:
Nail files are made in a manner which permits ease of dispensing. A tube is continuously fed into a milling machine where grooves are formed in predetermined segments of the tube. These grooves are roughened by adhesively applying abrasive particles or by milling the groove surfaces. The tubes are stamped so as to form alternating long grooved areas and short smooth areas. The thus-prepared tubes are divided into sections of desired lengths containing a plurality of nail files which may be easily detached from the remainder of the files in the section. Another method comprises providing a solid or hollow rod which has any of a variety of geometric cross-sections, providing the rod with grooves having varying sizes, roughening the surfaces of the grooves as above, and weakening the rods at predetermined lengths to produce sections containing a series of easily detached segments. The hollow files may be fitted with closures at each end. At least one of these closures is removable and replaceable. In this way, the hollow portion may be used for carrying additional manicure equipment. Another alternative is the preparation of a series of individual nail files. Each file has a rough upper surface, a smooth lower surface, and a ring-like opening attached to the lower surface. These files are attached to each other in a series by light adhesive bonding of one lower surface to the next adjacent lower surface. Extremely little waste is produced by the methods of manufacture of the present invention.
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Huff Richard L.
Lee Dae Young
Silbaugh Jan H.
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