US PATENT SUBCLASS 111 / 21-- .~.~.~.~ Break joint

US PATENT SUBCLASS 111 / 21
.~.~.~.~ Break joint

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

Internet Version by PATENTEC © 1999 Terms of Use

111 /	HD	PLANTING

14	DF	DRILLING {12}
15	DF	.~ Hill-planting machines {5}
18	DF	.~.~ Frame and planting-element arrangement {3}
20	DF	.~.~.~ Sectional main frame {1}
21		.~.~.~.~ Break joint

DEFINITION

Classification: 111/21

(under subclass 20) Devices comprising forward and rearward sections connected by a transverse pivot and capable of a buckling action to lift certain parts of the planter from contact with the ground.

(1) Note. In the usual type the forward frame carries the seed-dispensing elements and furrow-opener, which are lifted from the ground by a buckling or breaking of the joint between the frame sections through means generally located upon the rearward frame-section and comprising a lever mechanism.