US PATENT SUBCLASS 494 / 58
.~.~ Static scraper or the like for engaging material in moving bowl

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

Internet Version by PATENTEC © 1999      Terms of Use


494 /   HD   IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS

43  DF  ROTATABLE BOWL {16}
56  DF  .~ Including discharge-related structure in nature of (a) outlet having device for controlling quantity of flow, (b) element associated with pickup of material and adjustable for varying quality of flow, or (c) static scraper or the like for engaging material in moving bowl {2}
58.~.~ Static scraper or the like for engaging material in moving bowl {1}
59  DF  .~.~.~> And structure to receive or guide material loosened

DEFINITION

Classification: 494/58

Static scraper or the like for engaging material in moving bowl:

(under subclass 56) Apparatus comprising a blade or similar abutment which, except for purposes of repositioning, is stationary relative to a member which is turning about its axis, and serves to dislodge (e.g., peel off) material being moved against it by the member.

(1) Note. Although the functional movement is that of the material rather than that of the blade, the latter is repositionable for certain purposes; for example: (a) for moving it out of the interior of the member when not needed for dislodging material, or (b) for adjusting it relative to the surface of the material for determining the depth to which the material will be removed.

(2) Note. The material dislodged by the blade may be either material which is to be recovered or material which is merely to be disposed of; in the latter instance, the dislodging may be more nearly in the nature of an operation which infers, at least, a cleaning function.

(3) Note. Included here is the means, if any, for repositioning the blade.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation,

372+, for apparatus of that class in the nature of a filter and wherein the extractor includes a provision for discharging residue and additionally wherein the provision comprises a residue engaging means (e.g., a doctor blade), and subclasses 391+ for a filter which is removable and is provided with cleaning means (see especially indented subclasses 396+ wherein the means may be in the nature of a scraper).