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Douglas Dynamics (PLOW)

Utility
Snow plow and mount assembly
17 May 22
A snow plow and mount assembly has a mount frame, an A-frame, a lift frame, a plow blade, an actuator, arms, receivers, recesses, hitch pins, a latch mechanism, and a latch lever.
Chad Thomas Barker, David N. Bloxdorf, Matthew Thoma Curran, Christopher A. Dominguez, Matthew Terran Kaminecki
Filed: 10 Aug 20
Utility
Snow Plow Assembly
14 Apr 22
A snow plow assembly comprises an angle frame adapted to be operably mounted to a vehicle, a quadrant frame, a plow blade mounted to the quadrant frame, a drive link pivotally connected to the angle frame and the quadrant frame at first and second pivot points, respectively, a swing link pivotally connected to the angle frame and the quadrant frame at third and fourth pivot points, respectively, the angle frame, quadrant frame, drive link, and swing link, and the first, second, third, and fourth pivot points defining a four-bar linkage, and a first actuator pivotally connected on one end to the angle frame at a fifth pivot point and pivotally connected on the other end to the drive link at a sixth pivot point, wherein extending the first actuator causes the quadrant frame and hence the plow blade to rotate in a first direction from a neutral position generally perpendicular to a longitudinal axis of the vehicle, and retracting the first actuator causes the quadrant frame and hence the plow blade to rotate in a second opposite direction from the neutral position.
Gatesy R.C.D. Gates, Andre Valmont Leblond, Craig D. MacIntosh
Filed: 12 Oct 21
Utility
Brine Machine and Method
17 Jun 21
A brine machine comprises a salt hopper, a source of water for wetting salt in the salt hopper, a brine hopper positioned in side-by-side relation relative to the salt hopper, a filter providing fluid communication between the salt hopper and the brine hopper, a generally horizontal auger positioned in a base of the salt hopper, and an upwardly directed lift auger having a first end in operable association with an end of the horizontal auger and a second discharge end positioned above a level of brine in the brine hopper.
Clay Houston Hildreth, Andrew John Humke
Filed: 1 Mar 21
Utility
Shelving Systems
20 May 21
A shelving system includes side members that each define a first channel having a slide disposed therein.
Charles L. Hanley
Filed: 25 Jan 21
Utility
Brine machine and method
30 Mar 21
A brine machine comprises a salt hopper, a source of water for wetting salt in the salt hopper, a brine hopper positioned in side-by-side relation relative to the salt hopper, a filter providing fluid communication between the salt hopper and the brine hopper, a generally horizontal auger positioned in a base of the salt hopper, and an upwardly directed lift auger having a first end in operable association with an end of the horizontal auger and a second discharge end positioned above a level of brine in the brine hopper.
Clay Houston Hildreth, Andrew John Humke
Filed: 26 Apr 18
Utility
Shelving systems
9 Feb 21
A shelving system includes side members that each define a first channel having a slide disposed therein.
Charles L. Hanley
Filed: 16 Jul 18
Utility
Snow plow and mount assembly
26 Jan 21
A snow plow and mount assembly has a mount frame, an A-frame, a lift frame, a plow blade, an actuator, arms, receivers, recesses, hitch pins, a latch mechanism, and a latch lever.
Chad Thomas Barker, David N. Bloxdorf, Matthew Thoma Curran, Christopher A. Dominguez, Matthew Terran Kaminecki
Filed: 15 Jan 18
Utility
Snow Plow and Mount Assembly
30 Dec 20
A snow plow and mount frame assembly permits an operator to attach a snow plow to a mount frame secured to a vehicle, without the operator exiting a cab of the vehicle.
Chad Thomas Barker, David N. Bloxdorf, Matthew Thoma Curran, Gerald L. Depies, Christopher Aaron Horn, Bob Iverson, Leonard D. Morris
Filed: 25 Jun 19
Utility
Snow Plow and Mount Assembly
30 Dec 20
A snow plow and mount frame assembly permits an operator to attach and detach a snow plow to and from a mount frame secured to a vehicle, without the operator exiting a cab of the vehicle.
Chad Thomas Barker, David N. Bloxdorf, Matthew Thoma Curran, Gerald L. Depies, Christopher Aaron Horn, Bob Iverson, Matthew Terran Kaminecki, Leonard D. Morris
Filed: 5 Dec 19
Design
Snow plow headlamp
7 Dec 20
Christopher Aaron Horn, Seth Thomas Bergerud, Robert Douglas Clark, Michael Lee Frank, Tyler Barron Jones
Filed: 26 Mar 20
Utility
Material mixing system
7 Dec 20
The invention relates generally to a mixing system for mixing a dry material with a liquid.
Everett Hughes, Greg Neilson, Paul Yagiela
Filed: 27 Dec 17
Utility
Snow Plow and Mount Assembly
25 Nov 20
A snow plow and mount assembly has a mount frame, an A-frame, a lift frame, a plow blade, an actuator, arms, receivers, recesses, hitch pins, a latch mechanism, and a latch lever.
Chad Thomas Barker, David N. Bloxdorf, Matthew Thoma Curran, Christopher A. Dominguez, Matthew Terran Kaminecki
Filed: 9 Aug 20
Utility
Snow Plow and Mount Assembly
25 Nov 20
A snow plow and mount assembly has a mount frame, an A-frame, a lift frame, a plow blade, an actuator, arms, receivers, recesses, hitch pins, a latch mechanism, and a latch lever.
Chad Thomas Barker, David N. Bloxdorf, Matthew Thoma Curran, Christopher A. Dominguez, Matthew Terran Kaminecki
Filed: 9 Aug 20
Utility
Snow plow headlamp
5 Oct 20
A snow plow headlamp comprises a housing adapted to be mounted to a frame member of a snow plow assembly, at least a first forwardly directed LED mounted in the housing between opposite ends of the housing and configured to illuminate ahead of a vehicle to which the snow plow assembly is mounted, a second forwardly directed LED mounted in the housing adjacent one of the ends of the housing, a reflector mounted in the housing on a side of the second LED opposite the one end of the housing and configured to reflect light from the second LED to illuminate to a side of the vehicle to which the snow plow assembly is mounted, and a transparent cover mounted to the housing.
Christopher Aaron Horn
Filed: 10 Oct 18
Utility
High throughput brine generating system
7 Sep 20
A brine generation system includes a tank having an upper opening configured for receiving salt crystals to fill the tank.
Gary Nesheim, Clay Hildreth, Grant Nesheim, Peter Nelles
Filed: 18 Oct 12
Utility
Spreader with Shaftless Auger
19 Aug 20
A spreader comprises a hopper for containing sand, salt or other granular material to be spread upon snow or ice on paved surfaces, the hopper being adapted to be installed in or on a bed of a truck, the hopper having a trough, a shaftless auger positioned in the trough, an auger motor for driving the auger, a spinner positioned at one end of the auger for slinging the granular material upon the snow or ice, a spinner motor for driving the spinner, and at least one keeper supported by the trough and extending over the auger for retaining the auger in place during operation and thereby reducing flexure of the auger and resulting loss of efficiency of material transport by the auger during operation of the spreader.
Ryan Fossett, Christopher Aaron Horn, Gregory B. Neilson, Paul Yagiela
Filed: 14 Feb 19
Utility
Shelving systems
6 Jul 20
A shelving system includes side members that each define a first channel having a slide disposed therein.
Charles L. Hanley
Filed: 30 Oct 17
Utility
Snow Plow Headlamp
15 Apr 20
A snow plow headlamp comprises a housing adapted to be mounted to a frame member of a snow plow assembly, at least a first forwardly directed LED mounted in the housing between opposite ends of the housing and configured to illuminate ahead of a vehicle to which the snow plow assembly is mounted, a second forwardly directed LED mounted in the housing adjacent one of the ends of the housing, a reflector mounted in the housing on a side of the second LED opposite the one end of the housing and configured to reflect light from the second LED to illuminate to a side of the vehicle to which the snow plow assembly is mounted, and a transparent cover mounted to the housing.
Christopher Aaron Horn
Filed: 10 Oct 18
Design
Snow plow headlamp
30 Mar 20
Christopher Aaron Horn, Seth Thomas Bergerud, Robert Douglas Clark, Michael Lee Frank, Tyler Barron Jones
Filed: 10 Oct 18
Utility
Brine Machine and Method
30 Oct 19
A brine machine comprises a salt hopper, a source of water for wetting salt in the salt hopper, a brine hopper positioned in side-by-side relation relative to the salt hopper, a filter providing fluid communication between the salt hopper and the brine hopper, a generally horizontal auger positioned in a base of the salt hopper, and an upwardly directed lift auger having a first end in operable association with an end of the horizontal auger and a second discharge end positioned above a level of brine in the brine hopper.
Clay Houston Hildreth, Andrew John Humke
Filed: 25 Apr 18
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