US PATENT SUBCLASS 416 / 187-- .~.~.~.~ Angularly spaced, axially elongated blades (i.e., squirrel cage type)

US PATENT SUBCLASS 416 / 187
.~.~.~.~ Angularly spaced, axially elongated blades (i.e., squirrel cage type)

Current as of: June, 1999
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416 /	HD	FLUID REACTION SURFACES (I.E., IMPELLERS)

179	DF	ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR CONTINUOUS PASSAGE {4}
182	DF	.~ Radially extending web or end plate {3}
185	DF	.~.~ Circumferentially and radially continuous web or end plate {2}
186 R	DF	.~.~.~ Having opposed annular surface between adjacent blades {2}
187		.~.~.~.~ Angularly spaced, axially elongated blades (i.e., squirrel cage type)

DEFINITION

Classification: 416/187

(under subclass 186) Apparatus in which the working member* has a dimension along the axis of rotation which is substantially greater than the dimensions along a radius (transverse to the axis of rotation) or across the member (thickness), the plurality of such members arranged and spaced around the annular surface, the member being of substantially constant radial extent along its length and supported between the two surfaces distally from the axis of

rotation.

(1) Note. Typically, the working members are parallel to and equidistant from the rotational axis, i.e., drum type; however, included within this definition is an arrangement wherein the blades converge towards the axis, i.e., conical type.