US PATENT SUBCLASS 417 / 477.8
.~.~.~.~.~ Adjustable rollers or slides

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

Internet Version by PATENTEC © 1999      Terms of Use


417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
474  DF  .~ Elongated flexible chamber wall progressively deformed {2}
476  DF  .~.~ Deformation by rolling or sliding engagement member {1}
477.1  DF  .~.~.~ Plural spaced engagement members or member portions {6}
477.3  DF  .~.~.~.~ Specific rollers or slides structure {5}
477.8.~.~.~.~.~ Adjustable rollers or slides

DEFINITION

Classification: 417/477.8

Adjustable rollers or slides:

(under subclass 477.3) Apparatus wherein the position of the rolling or sliding elements are changeable.

(1) Note. The change of position of the rolling or sliding elements accommodate different sizes of the flexible wall or interposed flexible member, or vary wear on the elements, or vary an output of the pump, or ease insertion or removal of the flexible member. [figure]