US PATENT SUBCLASS 417 / 477.5
.~.~.~.~.~ Roller axes or slide contact surfaces at significant angle with drive axis

Current as of: June, 1999
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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}
477.5.~.~.~.~.~ Roller axes or slide contact surfaces at significant angle with drive axis

DEFINITION

Classification: 417/477.5

Roller axes or slide contact surfaces at significant angle with drive axis:

(under subclass 477.3) Apparatus wherein axes of rotation of the rolling elements or contact surfaces of the slide elements are positioned at an angle to the axis of a shaft or rotor which moves the rolling or sliding elements.

(1) Note. The angle is between 30 degrees and 90 degrees.

(2) Note. The rollers or the slides which merely return the flexible wall or interposed flexible member to undeformed shape are also included in this subclass.

(1) Note. The biasing can be caused by means such as a spring or weight or fluid pressure.

(2) Note. The axes of the rolling elements or the contact surfaces of the slide elements which have adjustable angles with respect to the axis of the shaft or rotor are included in this subclass. [figure]