US PATENT SUBCLASS 475 / 137
.~.~.~ Plural pumps

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

Internet Version by PATENTEC © 1999      Terms of Use


475 /   HD   PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS

31  DF  FLUID DRIVE OR CONTROL OF PLANETARY GEARING {11}
116  DF  .~ Fluid controlled mechanical clutch or brake {12}
136  DF  .~.~ With ancillary pump or governor drive {1}
137.~.~.~ Plural pumps

DEFINITION

Classification: 475/137

Plural pumps:

(under subclass 136) Subject matter wherein more than one

said device is driven to provide pressurized fluid for control of the transmission.

SEE OR SEARCH CLASS

477, Interrelated Power Delivery Controls, Including Engine Control, for plural pumps used in transmission control which also includes motor control.