Patent ID: 11946208
Assignee: LIGCHINE INTERNATIONAL CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 19:
20. An apparatus for screeding concrete to produce a level finished surface comprising:
a frame assembly having a front end and rear ends, said frame assembly having a pair of spaced vertically oriented stabilization legs secured to the front end thereof, said spaced legs supporting a generally horizontal front member therebetween, and at least one stabilization leg secured to the rear end thereof, each of said stabilization legs having a leveling actuator secured thereto for adjusting an elevation of said frame and thereby a screed head;
an extendable boom assembly having front and rear ends, and an exterior boom section pivotably secured to said frame assembly proximate said rear end thereof and to the screed head at said front end, said extendable boom assembly adjustably mounted on said front member;
a pivot assembly including a generally cylindrical pivot post having a bottom and an open top, said bottom extending through an aperture in said frame, and said top secured to said exterior boom section at a rear end thereof; and
a keeper plate positioned below said frame aperture and secured to said pivot post bottom for rotatably securing said pivot post to said frame.