Metal working – Method of mechanical manufacture – Obtaining plural product pieces from unitary workpiece
Patent
1996-08-22
2000-09-19
Echols, P. W.
Metal working
Method of mechanical manufacture
Obtaining plural product pieces from unitary workpiece
83 54, 83425, 83563, 264145, 264157, 264163, B23P 1700
Patent
active
061193240
ABSTRACT:
An apparatus and process for forming a discontinuous slot, recess or other such opening of predetermined size and location in an extrusion section, such as a window jamb liner. The apparatus includes a cutting or shaping device mounted on or closely adjacent an extruding die, such device including a tip movable between a retracted position and an extended position. In the extended position, the tip engages the extrusion as the extrusion is formed and leaves the die, to thereby slit or otherwise remove a strip or other predetermined amount of material from the extrusion and thus form a recess or opening. As the cutter-like member is extended into or retracted from the extrusion, the tip of the cutterlike member shears the extrusion cross-wise to form an opening which may form an end of a slot and the length of time the tip remains in such contact with the extrusion determines the slots length. An extruded window jamb liner manufactured by the apparatus and process is also provided, the jamb liner including at least one discontinuous opening of predetermined length and location.
REFERENCES:
patent: 527963 (1894-10-01), Gay
patent: 1408877 (1922-03-01), Funk
patent: 3545336 (1970-12-01), Sauko
patent: 3773883 (1973-11-01), Labbe et al.
patent: 3843758 (1974-10-01), Maroschak
patent: 3910713 (1975-10-01), Maroschak
patent: 4030179 (1977-06-01), Schwarz
patent: 4062919 (1977-12-01), Rojahn et al.
patent: 4105738 (1978-08-01), Rohn
patent: 4169179 (1979-09-01), Bussey, Jr.
patent: 4204447 (1980-05-01), Slaughterbeck
patent: 4237567 (1980-12-01), Grube
patent: 4470942 (1984-09-01), Beretta
patent: 4786452 (1988-11-01), Gunzel
patent: 4981637 (1991-01-01), Hyer
patent: 5033235 (1991-07-01), Stark
patent: 5509795 (1996-04-01), Near et al.
Exhibit A includes a photograph of an extruded windowsill of prior art which includes a short slot cut into the sill by a router.
Exhibit B includes phtographs of an extruded window jamb liner of prior art having a window guiding channel, a slot for accessing the channel extending from end-to-end of the jamb liner and an insert for covering portions of the slot.
Echols P. W.
Newell Manufacturing Company
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