# US 7,743,534 B2 · Snow plow having two-piece mold board

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 7,743,534 B2
- Document ID: US7743534B2
- Status: Granted
- Kind: B2
- Application number: 11/556,375
- Filed: 2006-11-03
- Published: 2007-03-22
- Granted: 2010-06-29
- Earliest claimed: 2003-03-31
- Assignees: Agri-Cover, Inc.
- Inventors: Charles M. Schmeichel
- Web page: https://patentgrep.com/patent/US7743534B2

## CPC

- E01H 5/06: dislodging essentially by non-driven elements, e.g. scraper blades {, snow-plough blades, scoop blades}
- E01H 5/061: {by scraper blades}
- E01H 5/062: {by scraper blades displaceable for shock-absorbing purposes}
- E01H: STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING {OR PREVENTING} FOG IN GENERAL {CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS}(cleaning in general B08B)

## Abstract

A snow plow for attachment to a vehicle, the snow plow including a mounting apparatus having a mounting frame, the mounting frame including at least one mounting upright. The snow plow further including a plow blade including a retention apparatus constructed and arranged to slidingly and disengageably secure the plow blade to the mounting upright(s) when the plow blade is in a working orientation. The plow blade includes a two piece mold board, the mold board preferably being an aluminum extrusion.

## Claims

### Claim 1

A plow blade comprising:
a first longitudinal piece having a top edge, a bottom edge, side edges, a front surface and a rear surface; and
a second longitudinal piece having a top, a bottom, side edges, a front surface and a rear surface; wherein the first and second longitudinal pieces are made of extruded aluminum and are attached to each other at their respective bottom and top edges;
wherein each of the first and second pieces has a hollow core extending from the first end to the second end;
wherein the bottom edge of the first longitudinal piece and the top edge of the second longitudinal piece are configured and arranged to engage each other in an interlocking relation;
wherein the bottom edge of the first longitudinal piece includes a slot and a lip and the top edge of the second longitudinal piece includes a lip and a slot, with the lip of the first longitudinal piece configured to be received by the slot in the in the second longitudinal piece, and with the slot of the first longitudinal piece configured to receive the lip of the second longitudinal piece, whereby the longitudinal pieces are joined to each other;
wherein the lips and slots of the first and second longitudinal pieces are configured so that as the first and second longitudinal pieces are attached to each other, the bottom edge of the first longitudinal piece and the top edge of the second longitudinal piece are drawn towards each other.

### Claim 2 (depends on 1)

The plow blade of claim 1, wherein at least one of the lips of the first or second longitudinal pieces includes a camming surface that is configured to engage a surface of the other first or second longitudinal piece and draw the longitudinal pieces together as they are being attached to each other.

### Claim 3 (depends on 1)

The plow blade of claim 1, wherein the plow blade includes a hollow core; wherein the top edge, the bottom edge, the side edges, the front surface and the rear surface of the first longitudinal piece define the hollow core.

### Claim 4 (depends on 1)

The snow plow of claim 1, wherein the mold board further includes a rubber scraper.

### Claim 5

A plow blade comprising:
a first longitudinal piece having a top edge, a bottom edge, side edges, a front surface and a rear surface; and
a second longitudinal piece having a top, a bottom, side edges, a front surface and a rear surface; wherein the first and second longitudinal pieces are made of extruded aluminum and are attached to each other at their respective bottom and top edges;
wherein each of the first and second pieces has a hollow core extending from the first end to the second end;
wherein the bottom edge of the first longitudinal piece and the top edge of the second longitudinal piece are configured and arranged to engage each other in an interlocking relation;
wherein the bottom edge of the first longitudinal piece includes a slot and a lip and the top edge of the second longitudinal piece includes a lip and a slot, with the lip of the first longitudinal piece configured to be received by the slot in the in the second longitudinal piece, and with the slot of the first longitudinal piece configured to receive the lip of the second longitudinal piece, whereby the longitudinal pieces are joined to each other;
wherein at least one of the lips of the first or second longitudinal pieces includes a camming surface that is configured to engage a surface of the other first or second longitudinal piece and draw the longitudinal pieces together as they are being attached to each other.

### Claim 6 (depends on 5)

The plow blade of claim 5, wherein the lips and slots of the first and second longitudinal pieces are configured so that as the first and second longitudinal pieces are attached to each other, the bottom edge of the first longitudinal piece and the top edge of the second longitudinal piece are drawn towards each other.

### Claim 7 (depends on 5)

The plow blade of claim 5, wherein the top edge, the bottom edge, the side edges, the front surface and the rear surface of the first longitudinal piece define a hollow core.

### Claim 8 (depends on 5)

The snow plow of claim 5, wherein the mold board further includes a rubber scraper.