US PATENT SUBCLASS 100 / 178
.~.~ Platen or piston type


Current as of: June, 1999
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100 /   HD   PRESSES

144  DF  CONCURRENT PRESSING AND CONVEYING {5}
177  DF  .~ Moving compression chamber {1}
178.~.~ Platen or piston type


DEFINITION

Classification: 100/178

(under subclass 177) Apparatus in which the press has pressure surface which reciprocates within the compression chamber to compact the material in the chamber.

(1) Note. This subclass includes presses in which a series of separate cavities are filled successively at one location and then moved to another location and during such movement a platen or piston moves within each cavity to reduce the volume occupied by the filling material.

(2) Note. The devices here are usually plural.

SEE OR SEARCH THIS CLASS, SUBCLASS:

116, for piston and platen type presses in which there is

drainage of expressed liquid through or along the pressure surface.

193+, for plural presses not otherwise provided for. 214+, for reciprocating platen presses.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus,

373, for cooking apparatus including two movably connected heated plates adapted to be positioned so as to confine and contact food material therebetween and having means for bodily transporting both cooking surfaces from a feeding station to a discharging station.

131, Tobacco,

87, for devices for making cigars and cigarettes in which the tobacco is molded and there being a plurality of molds carried upon a rotary or endless carrier.

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

71+, for devices for filling receivers and having means for compacting the contents material.

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

345, for a transversely traveling mold in a combination of plural sets each set comprising a female mold and opposed coaxial dynamic male press members, subclasses 347+, for sets of male-female press molds having traveling female molds, subclasses 352+, for a female mold and opposed coaxial dynamic press members, subclass 356, for plural shaping plungers or rolls coacting with a single female mold, and, subclass 357, for plural female mold cavities which coact with a single press member.