US PATENT SUBCLASS 425 / 225
WITH SEPARATE APPARATUS CLEANING MEANS

Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

225WITH SEPARATE APPARATUS CLEANING MEANS {3}
226  DF  .~> Coacting with diverse apparatus elements
227  DF  .~> Coacting with forming means or dough divider type trap chamber {4}
232  DF  .~> Coacting with work contact means (e.g., conveyor or cutter, etc.) downstream of former

DEFINITION

Classification: 425/225

(under the class definition) Apparatus comprising means for removing dirt, impurities or extraneous matter from the apparatus or a part thereof.

(1) Note. Excluded under this definition is apparatus for cleaning material being shaped or already shaped.

(2) Note. Apparatus disclosing and claiming and element of the apparatus which has the inherent function of cleaning while shaping or ejecting the product with no characteristic cleaning apparatus feature, is excluded from this subclass. For example, a plunger wherein the edge thereof may act to scrape the mold sidewall on an ejection stroke with no particular configuration or attachment provided is excluded from this subclass.

(3) Note. Means coating an apparatus part is not here, but found in subclasses 90+, even though it may have the dual function of coating and cleaning. Devices disclosing and claiming means cleaning an apparatus part with a liquid, and having no disclosure that the liquid also applies a coating to the apparatus are found here.

(4) Note. Means removing a sprue from an apparatus part is considered a cleaning operation and classified in subclasses 227+.

SEE OR SEARCH THIS CLASS, SUBCLASS: 90+, for means applying a nonmoldable coating material (e.g.., parting or cleaning fluid) to a work contact means.

107, for means applying a lubricating fluid to apparatus elements.

182+, for means or apparatus features permitting disassembly for cleaning purposes.

274, for dipping type shaping means having stripper means for shaped work.

436+, for a shaping surface with means to release, or remove an article from a shaping surface.

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning, appropriate subclasses for mechanical cleaning means of the machine or implement type, per se, and see the search notes cited.

134, Cleaning and Liquid Contact With Solids, appropriate subclasses for cleaning apparatus, per se, operative under a "law of the particular machine".