Apparatus for producing a hard metal or ceramic rod having helic

Details Apparatus for producing a hard metal or ceramic rod having helic Apparatus for producing a hard metal or ceramic rod having helic

1995-06-06

1998-07-14

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

72258, 76 51, 761086, 2641711, 26417316, 408 59, 4251331, 425381, 4253823, 425462, B29C 4706, B29C 4730

Patent

active

057800634

ABSTRACT:
An extruder for extrusion manufacturing a rod of hard metal or ceramic with at least one helical inner bore. A plasticized mass of hard metal or ceramic is simultaneously forced through a die and twisted. Either the mass is twisted uniformly over the cross-section of the billet by a spinner immersed in the mass or the spinner is rotated by the mass. The mass emerges either subject to torsion or entirely or mostly without torsion from a smooth downstream channel through the die. A filament-shaped material extends or is injected into the mass to produce the inner bore or bores.

REFERENCES:
patent: 2138378 (1938-11-01), Johnson
patent: 2174779 (1939-10-01), Delorme
patent: 3205692 (1965-09-01), Kemppinen et al.
patent: 3520966 (1970-07-01), Soffiantini
patent: 3651187 (1972-03-01), Cessna, Jr.
patent: 4120628 (1978-10-01), Simos
patent: 4704055 (1987-11-01), Guhring
patent: 4779440 (1988-10-01), Cleve et al.
patent: 4921414 (1990-05-01), Schliehe et al.
patent: 5049331 (1991-09-01), Hempel

Affiliated with

Also associated with

Rating

Apparatus for producing a hard metal or ceramic rod having helic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for producing a hard metal or ceramic rod having helic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for producing a hard metal or ceramic rod having helic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1879416