US PATENT SUBCLASS 415 / 170.1
BEARING, SEAL, OR LINER BETWEEN RUNNER PORTION AND STATIC PART

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

170.1BEARING, SEAL, OR LINER BETWEEN RUNNER PORTION AND STATIC PART {9}
171.1  DF  .~> Dynamically created seal
172.1  DF  .~> Means to seal radial flow pump runner inlet from outlet
173.1  DF  .~> Between blade edge and static part {4}
173.6  DF  .~> Between blade supported radial tip ring and static part
173.7  DF  .~> Between axial flow runner and vane or vane diaphragm structure
174.1  DF  .~> Selectively adjustable
174.2  DF  .~> Resilient, flexible, or resiliently biased {1}
174.4  DF  .~> Erodable or permanently deformable
174.5  DF  .~> Labyrinth seal

DEFINITION

Classification: 415/170.1

BEARING, SEAL, OR LINER BETWEEN RUNNER PORTION AND STATIC PART:

(under the class definition) Device comprising means located between a runner* and a fixed element which (a) reduces friction between the runner and the fixed element while providing a supporting or guiding function for the runner, (b) prevents or retards the flow of fluid between the runner and the fixed element, or (c) prevents or retards wear between the runner and the fixed element.

(1) Note. A conventional runner rotating shaft* or shaft covering portion (i.e., sleeve) is not considered to be a part of a runner for the purposes of this and indented subclasses.

(2) Note. Regarding (b) above, the fluid prevented or retarded from flowing is usually working fluid*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33+, for a device having a bearing which automatically adjusts in response to shaft speed or torque.

110+, for a device with lubricating, sealing, packing, or bearing means having a fluid path between the normal working fluid path and an interior part of an assembly which fluid path is positioned between two relatively moving apparatus parts.

115, for a device with a passage in a blade*, vane*, shaft*, or rotary distributor communicating with the working fluid*. Such a passage may direct fluid to a region between a runner* and a static part which fluid may act as a lubricant or seal. 116+, for a device with a diversely oriented inlet or an additional inlet for a diverse fluid, which fluid may be directed to a region between a runner and a static part to act as a lubricant or seal.

126+, for a device having a casing* which may have a seal, bearing, or liner attached to and moveable with the casing for adjustment.

168.1+, for a device having a seal, liner, or bearing between a runner* and a static part and means to dispose of any leakage therethrough. Note particularly subclass 168.3 for such a device with a screw-type pumping seal.

175+, for a device with means for causing or controlling fluid flow for reducing friction between two relatively moving parts other than a runner portion and a static part.

196+, for a device having a casing attached removable liner or wear member which lines or protects the casing at a location other than between a runner* or blade* and a static

part.

229, for a device having a bearing, seal, or liner between a shaft or shaft sleeve and a static part.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

5+, for devices for gyroscopic action which have bearings which may be between a runner or blade and a casing. See the reference to Class 74 in section IV of the Class 415 definitions for a statement of class lines.

277, Seal for a Joint or Juncture, for a generic sealing means or process (e.g., seal between a runner* and another relatively movable part, seal between the two relatively moving members, does not recite enough details of the rotary kinetic device, etc.),

345+, for a seal between relatively movable parts (i.e., a dynamic seal). 384, Bearings, for a bearing or guide in which the runner is supported for motion, where there is insufficient disclosure of the rotary device to serve as a basis of classification in Class 415.