US PATENT SUBCLASS 280 / 137.503
.~.~.~.~ Spherical union (i.e., ball and socket joint)

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

Internet Version by PATENTEC © 1999      Terms of Use


280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
80.1  DF  .~ Running gear {20}
137.5  DF  .~.~ Turnable axle (e.g., fifth-wheel or swinging axle) {2}
137.502  DF  .~.~.~ Fifth-wheel or pivot details {5}
137.503.~.~.~.~ Spherical union (i.e., ball and socket joint)

DEFINITION

Classification: 280/137.503

Spherical union (i.e., ball and socket joint):

(under subclass 137.502) Subject matter including a bulbous member (i.e., ball) interfitting within a concave member (i.e., socket) creating the vertical pivot axis.