US PATENT SUBCLASS 100 / 145
.~ Helix-type compressor

Current as of: June, 1999
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100 /   HD   PRESSES

144  DF  CONCURRENT PRESSING AND CONVEYING {5}
145.~ Helix-type compressor {5}
146  DF  .~.~> Right and left helices
147  DF  .~.~> Overload release (yieldable choke)
148  DF  .~.~> With valve or choke adjustment
149  DF  .~.~> Detachable choke
150  DF  .~.~> Helix interengaging abutment

DEFINITION

Classification: 100/145

(under subclass 144) Apparatus in which the material is forwarded by a rotating member having a fin or fins extending spirally about and along the axis of rotation and the material is compressed by being forced by the forwarding movement through a constricted passage of cross section smaller than that of the uncompressed material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

117, for presses in which there is drainage through or along a pressure surface in which the pressure surface is a movable surface helix.

SEE OR SEARCH CLASS

141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

256+, and 259, for helix type compressors utilized as rotary packing augers. 222, Dispensing,

412+, for containers with a rotary discharge assistant which has helically arranged projections, e.g., screws.

241, Solid Material Comminution or Disintegration,

82.1+, for a comminutor wherein a helical pusher moves material through a perforated member.

366, Agitating,

69, for similar structure into means to enhance kneading or mixing of heavy plastics (e.g., gums, dough, etc.).

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

208, for shaping apparatus for nonmetals with an upstream agitating or kneading means comprising a modified screw helix in a pressurizing chamber.

452, Butchering,

44, for sausage stuffing machines in which a screw conveyor forces the material into a sausage case.