Sweep ell production apparatus

Details Sweep ell production apparatus Sweep ell production apparatus

1979-10-29

1981-06-16

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

Diverse distinct type shaping means

Shaping orifice and either a downstream preform reshaping...

264568, 2642094, 425325, B29C 1707, B29D 2304

Patent

active

042735238

ABSTRACT:
A sweep ell production apparatus (10) receives extruded plastic pipe (98) from an extruder (96). The plastic pipe (98) is passed through a curved sizing sleeve (100) which imparts a curvature to the plastic pipe (98) while at the same time sizing the pipe wall thicknesses and exterior diameter. After the pipe (98) passes through the sizing sleeve (100) a clamp (84) is secured about the periphery of the pipe (98). The clamp (84) is driven by means of a motor (34) which causes the clamp (84) to travel along an arc (112) which corresponds with the radius of curvature of the sizing sleeve (100). As the clamp (84) draws pipe (98) along the arc (112) of travel, the pipe (98) is set to have the desired radius of curvature. After a selected arc length of pipe (98) is produced, the pipe section is cut to produce the desired sweep ell.

REFERENCES:
patent: 1877628 (1932-09-01), Replogle
patent: 2389038 (1945-11-01), German
patent: 2964796 (1955-12-01), Press
patent: 3748077 (1973-07-01), Williams et al.
patent: 3753635 (1973-08-01), Barnett
patent: 3776539 (1973-12-01), Curtis et al.
patent: 3861847 (1975-01-01), Barnett
patent: 3884612 (1975-05-01), Parmann

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