# US 8,739,437 B2 · Snowplow blade > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,739,437 B2 - Document ID: US8739437B2 - Status: Granted - Kind: B2 - Application number: 13/116,065 - Filed: 2011-05-26 - Published: 2012-09-06 - Granted: 2014-06-03 - Earliest claimed: 2011-03-04 - Assignees: Meyer Products, LLC - Applicants: Jim Ropog; Marty Warchola - Inventors: Jim Ropog; Marty Warchola - Web page: https://patentgrep.com/patent/US8739437B2 ## CPC - E01H 5/061: {by scraper blades} - E01H 5/065: {characterised by the form of the snow-plough blade, e.g. flexible, or by snow-plough blade accessories (E01H5/061, E01H5/063 take precedence)} - 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 By controlling the dimensions of a snowplow blade, improved snowplow performance may be achieved. In one embodiment, the snow that is being plowed moves both upward and outward from the mid-section of the snowplow blade toward and beyond each end of the snowplow blade. ## Claims ### Claim 1 A snowplow comprising: a snowplow blade that is suitable to be attached to an associated vehicle and that has a snowplow surface for use in contacting and plowing associated snow as the associated vehicle moves; wherein the snowplow surface has: a bottom portion; a top portion; and, a C-shaped cross-section; wherein the snowplow surface has: a first end; a second end; and, a mid-section; wherein: the top portion of the first end has at least a first segment that extends forwardly a first amount E1; the top portion of the second end has at least a first segment that extends forwardly a second amount E2; and, the top portion of the mid-section extends forwardly a maximum third amount E3 that is significantly less than the first and second amounts E1 and E2; and, wherein a horizontal line extending from the first end to the second end between the bottom portion and the top portion continuously contacts the snowplow surface. ### Claim 2 (depends on 1) The snowplow of claim 1 wherein: the bottom portion of the snowplow surface has a width W1; and, the top portion of the snowplow surface has a width W2 that is significantly greater than width W1. ### Claim 3 (depends on 1) The snowplow of claim 1 wherein: the first end of the snowplow surface has a height H1; the second end of the snowplow surface has a height H2; and, the mid-section of the snowplow surface has a height H3 that is significantly less than height H1 and height H2. ### Claim 4 (depends on 2) The snowplow of claim 2 wherein: the width of the snowplow surface gradually increases from the bottom portion with the width W1 to the top portion with the width W2. ### Claim 5 (depends on 4) The snowplow of claim 4 wherein: the first end has an upward width angle UWA of between 5 degrees and 15 degrees inclusively; and, the second end has an upward width angle UWA of between 5 degrees and 15 degrees inclusively. ### Claim 6 (depends on 2) The snowplow of claim 2 wherein: the ratio of the width W1 to the width W2 is between 0.85 and 0.95 inclusively. ### Claim 7 (depends on 3) The snowplow of claim 3 wherein: the height of the first end of the snowplow surface gradually increases outwardly from the height H3 to the height H1; and, the height of the second end of the snowplow surface gradually increases outwardly from the height H3 to the height H2. ### Claim 8 (depends on 7) The snowplow of claim 7 wherein: the first end has an upward height angle UHA of between 3 degrees and 15 degrees inclusively; and, the second end has an upward height angle UHA of between 3 degrees and 15 degrees inclusively. ### Claim 9 (depends on 7) The snowplow of claim 7 wherein the entire mid-section has the height H3. ### Claim 10 (depends on 1) The snowplow of claim 1 wherein: the extension of the first end of the snowplow surface gradually increases outwardly from the third extension amount E3 to the first extension amount E1; and, the extension of the second end of the snowplow surface gradually increases outwardly from the third extension amount E3 to the second extension amount E2. ### Claim 11 (depends on 10) The snowplow of claim 10 wherein: the first end has an outward extension angle OEA of between 5 degrees and 25 degrees inclusively; and, the second end has an outward extension angle OEA of between 5 degrees and 25 degrees inclusively. ### Claim 12 (depends on 10) The snowplow of claim 10 wherein the entire mid-section has the extension amount E3. ### Claim 13 (depends on 1) The snowplow of claim 1 wherein the snowplow blade is substantially rigid. ### Claim 14 (depends on 1) The snowplow of claim 1 wherein the snowplow blade is one-piece. ### Claim 15 A snowplow comprising: a snowplow support frame that is suitable to be attached to an associated vehicle; a snowplow blade that is suitable to be attached to the snowplow support frame and that has a snowplow surface for use in contacting and plowing associated snow as the associated vehicle moves; wherein the snowplow surface has: a bottom portion with a width W1; a top portion with a width W2 that is significantly greater than width W1; and, a C-shaped cross-section; wherein the snowplow surface has: a first end with a height H1; a second end with a height H2; and, a mid-section with a height H3 that is significantly less than height H1 and height H2; wherein a horizontal line extending from the first end to the second end between the bottom portion and the top portion continuously contacts the snowplow surface; and, wherein: the top portion of the first end has at least a first segment that extends forwardly a first amount E1; the top portion of the second end has at least a first segment that extends forwardly a second amount E2; and, the top portion of the mid-section extends forwardly a maximum third amount E3 that is significantly less than the first and second amounts E1 and E2. ### Claim 16 (depends on 15) The snowplow of claim 15 wherein: the snowplow blade is substantially rigid; and, the snowplow blade is one-piece. ### Claim 17 (depends on 16) The snowplow of claim 16 wherein: the width of the snowplow surface gradually increases from the bottom portion with the width W1 to the top portion with the width W2; the extension of the first end of the snowplow surface gradually increases outwardly from the third extension amount E3 to the first extension amount E1; the extension of the second end of the snowplow surface gradually increases outwardly from the third extension amount E3 to the second extension amount E2; the height of the first end of the snowplow surface gradually increases outwardly from the height H3 to the height H1; and, the height of the second end of the snowplow surface gradually increases outwardly from the height H3 to the height H2. ### Claim 18 (depends on 17) The snowplow of claim 17 wherein: the first end has an upward width angle UWA of between 5 degrees and 15 degrees inclusively; the second end has an upward width angle UWA of between 5 degrees and 15 degrees inclusively; the first end has an upward height angle UHA of between 3 degrees and 15 degrees inclusively; the second end has an upward height angle UHA of between 3 degrees and 15 degrees inclusively; the first end has an outward extension angle OEA of between 5 degrees and 25 degrees inclusively; and, the second end has an outward extension angle OEA of between 5 degrees and 25 degrees inclusively. ### Claim 19 (depends on 18) The snowplow of claim 18 wherein: the entire mid-section has the height H3; the entire mid-section has the extension amount E3; and, the ratio of the width of the mid-section to the width W2 is between 0.24 and 0.60 inclusively. ### Claim 20 (depends on 19) The snowplow of claim 19 wherein: the snowplow blade has an attack angle between 55 degrees and 75 degrees inclusively; and, the snowplow support frame is suitable to be attached an associated ATV.