US PATENT SUBCLASS 280 / 451
.~.~.~.~ Frangible member (e.g., shear pin)

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
400  DF  .~ Articulated vehicle {30}
446.1  DF  .~.~ Condition responsive connections {4}
449  DF  .~.~.~ Overload release {3}
451.~.~.~.~ Frangible member (e.g., shear pin)

DEFINITION

Classification: 280/451

(under subclass 449) Devices in which the draft connection includes a member which is destructible upon the occurrence of a predetermined overload.

(1) Note. The destructible element is usually in the form of a break pin.

SEE OR SEARCH CLASS

172, Earth Working,

271, for earth working apparatus with a frangible means which permits shifting of a part on the occurrence of an overload.