Land levelling equipment

• US 4,082,150 A
• Filed: 04/14/1977
• Issued: 04/04/1978
• Est. Priority Date: 04/14/1977
• Status: Expired due to Term

• Current Assignee: Dwayne L. Winkles
• Original Assignee: Dwayne L. Winkles
• Inventors: Winkles, Dwayne L.
• Primary Examiner(s): Stouffer, Richard T.
• Application Number:
  US05/787,349
• Time in Patent Office: 355 Days
• Field of Search: 172/26.5, 172/26.6, 172/145, 172/159, 172/160, 172/197, 172/199, 172/200, 172/669, 172/671, 172/677, 172/762, 172/763, 172/767, 172/770, 172/771, 172/779, 172/780, 37/41, 37/42 R, 37/53, 37/42 VL, 280/476 A, 403/386, 403/400
• US Class Current: 172/780
• CPC Class Codes: E02F 3/7663 Graders with the scraper blade mounted under a frame supported by wheels, or the like
• CPC Class Codes: E02F 3/815 Blades; Levelling or scarifying tools E02F3/40 takes precedence
• CPC Class Codes: Y10T 403/7194 Crossed rods

Abstract

A basic land leveller has the side plates and moldboard carriers. Angle irons are welded to the top of the carriers to form the moldboard carriers into a rigid structure and to form a guide for the wheel booms extending behind the leveller and a tongue extending in front of the leveller. The equipment is shipped with the wheel booms and tongue aligned with the moldboard carriers and the buyer bolts the booms into the boom guides and the tongue into the tongue guides.

The moldboards are formed of a plate broken three times to form three panels with a blade bolted to the bottom panel.

Claims

1. In a land leveler to be pulled in a direction of draft having

a. side plates aligned with the direction of draft on each side thereof,

b. front and back moldboard carriers normal to the direction of draft rigidly connected to the side plates,

c. the side plates extending forward of the front moldboard carrier,

d. widely separated wheel booms aligned with the direction of draft extending from the moldboard carriers rearwardly to adjustable wheels, and

e. a tongue aligned in the direction of draft from the moldboard carriers forward to a hitch;

The improved structure comprising;

f. vertical upward tongue guides aligned with the direction of draft, rigidly connected to the top of the moldboard carriers,

g. said tongue bolted within the tongue guides, and

h. vertical upward boom guides aligned with the direction of draft rigidly connected to the top of the moldboard carriers,

j. said booms bolted within said boom guides, and

k. said vertical upward guides being angle irons welded to the front moldboard carrier and also to the rear moldboard carrier and extending therebetween.

2. The invention as defined in claim 1 with additional limitations of

k. each of said moldboard carriers is a channel beam,

m. a moldboard being made of

(i) an integral plate of

(ii) four planar panels,

(iii) each panel is of equal width and length to each other panel and

(iv) angled about 30°

to adjacent panel so that

(v) the outside panels are angled 90°

to each other,

n. said moldboard attached within the carrier channel with the top and bottom panel angled about 45°

from vertical, and

o. a scraper blade bolted to the bottom panel of the moldboard.

3. The invention as defined in claim 1 wherein said wheel booms have

k. ground engaging wheels thereon, and

m. adjustable means on the wheels for raising and lowering the wheels.

4. The invention as defined in claim 3 with additional limitations of

o. each of said moldboard carriers is a channel beam,

p. a moldboard being made of

(i) an integral plate of

(ii) four planar panels,

(iii) each panel is of equal width and length to each other panel and

(iv) angled about 30°

to adjacent panel so that

(v) the outside panels are angled 90°

to each other,

q. said moldboard attached within the carrier channel with the top and bottom panel angled about 45°

from vertical, and

r. a scraper blade bolted to the bottom panel of the moldboard.

5. In a land leveler to be pulled in a direction of draft having

a. side plates aligned with the direction of draft on each side thereof,

b. front and back moldboard carriers normal to the direction of draft rigidly connected to the side plates,

c. the side plates extending forward of the front moldboard carrier,

d. widely separated wheel booms aligned with the direction of draft extending from the moldboard carriers rearwardly to adjustable wheels and

e. a tongue aligned in the direction of draft from the moldboard carriers forward to a hitch,

The improved structure comprising:

6. f. each of said moldboard carriers is a channel beam,

g. a moldboard being made of

(i) an integral plate of

(ii) four planar panels,

(iii) each panel is of equal width and length to each other panel and

(iv) angled about 30°

to adjacent panel so that

(v) the outside panels are angled 90°

to each other,

h. said moldboard attached within the carrier channel with the top and bottom panel angled about 45°

from vertical, and

j. a scraper blade bolted to the bottom panel of the moldboard.