US PATENT SUBCLASS 425 / 156
.~ For timing period mold is closed or period molding pressure is maintained

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

155  DF  WITH CONTROL MEANS RESPONSIVE TO INDEPENDENTLY OPERATED TIMER {3}
156.~ For timing period mold is closed or period molding pressure is maintained {1}
157  DF  .~.~> In press mold cycle {1}

DEFINITION

Classification: 425/156

(under subclass 155) Apparatus in which the time period limited is that during which the forming means is closed or during which a pressure is maintained on the forming means, for shaping of the article.

(1) Note. In this subclass will be found, for example, devices having timers to limit the period during which an injection mold is closed while material is injected under pressure to be formed therein.