IP Library Granted Patent US 12,123,152
Granted Patent B2
US 12,123,152 · App. 17/360,565 · Granted Oct 22, 2024

Side-step concrete screeding apparatus

Inventor: Peter A. Ligman (Darien, WI)
Assignee: Ligchine International Corporation
E01C19/42E01C2301/16
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Quick Facts
Patent No.
US 12,123,152
App. No.
17/360,565
Granted
Oct 22, 2024
Kind
B2
Abstract

An apparatus for screeding concrete to produce a level finished surface includes a frame assembly having a pair of spaced vertically oriented stabilization legs secured to the front end thereof supporting a generally horizontal front member. An extendable boom assembly is secured to said frame assembly at a first end and to a screed head at a second end. A side-step assembly includes an actuator with an extendable arm secured to said boom assembly to impart generally lateral motion.

Claims (8)

1. An apparatus for screeding concrete to produce a level finished surface comprising:

a frame assembly having a front end and rear end, 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;

an extendable boom assembly secured to said frame assembly at a first end and to a screed head at a second end, said extendable boom assembly adjustably disposed on said front member; and

a side-step assembly having an actuator with an extendable arm thereon, said actuator secured at a point to said frame, and said extendable arm secured to said boom assembly to impart generally lateral motion thereto.

2. An apparatus as claimed in claim 1 wherein said actuator is an hydraulic actuator.

3. An apparatus as claimed in claim 1 wherein said actuator is a linear actuator.

4. An apparatus as claimed in claim 1 comprising:

a vertically oriented stabilization leg secured to said frame assembly at said rear end thereof, whereby said stabilization legs level said frame and said screed head.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2021
From: LIGMAN, PETER A.
To: LIGCHINE INTERNATIONAL CORPORATION
Reel/Frame 057548/0522 →
Continuity (3)
Continuation In Part 15332569 · Oct 24, 2016
Provisional Application 62245718 · Oct 23, 2015
Related Publication 20220162814A1 · May 26, 2022