Patents Assigned to Douglas Dynamics
-
Publication number: 20140230290Abstract: A plow assembly for attachment to a vehicle having a longitudinal axis comprises a plow blade having first and second ends, a first plow wing pivotally mounted to the first end of the plow blade, and a plow support adapted to be operably mounted to the vehicle. The first plow wing is biased by a first compression. A first connecting member is connected to the first plow wing, passes through the first compression spring generally coaxially therewith, and is connected to the plow support. The first connecting member is configured to pivot the first plow wing relative to the plow blade during pivoting of the plow blade from a center position to a first position such that when the plow blade is in the first position the first plow wing is generally parallel to the plow blade.Type: ApplicationFiled: February 15, 2013Publication date: August 21, 2014Applicant: Douglas Dynamics, L.L.C.Inventor: David N. Bloxdorf
-
Patent number: 8607482Abstract: A plow assembly for attachment to a vehicle, the vehicle having a longitudinal axis, comprises a plow blade having first and second ends, a first plow wing pivotally mounted to the first end of the plow blade, a plow support adapted to be mounted to the vehicle, the plow blade being pivotally mounted to the plow support to permit the plow blade to pivot relative to the vehicle between a center position, where the plow blade is positioned generally perpendicular to the longitudinal axis of the vehicle, and a first position, where the first end of the plow blade is pivoted toward the vehicle, and between the center position and a second position, where the second end of the plow blade is pivoted toward the vehicle, and either a single link rod, a resilient connecting member, or a cam and follower mechanism connected to the first plow wing and to the plow support and configured to pivot the first plow wing relative to the plow blade during pivoting of the plow blade relative to the vehicle such that when the ploType: GrantFiled: February 28, 2011Date of Patent: December 17, 2013Assignee: Douglas Dynamics, L.L.C.Inventor: David N. Bloxdorf
-
Publication number: 20120216434Abstract: A plow assembly for attachment to a vehicle, the vehicle having a longitudinal axis, comprises a plow blade having first and second ends, a first plow wing pivotally mounted to the first end of the plow blade, a plow support adapted to be mounted to the vehicle, the plow blade being pivotally mounted to the plow support to permit the plow blade to pivot relative to the vehicle between a center position, where the plow blade is positioned generally perpendicular to the longitudinal axis of the vehicle, and a first position, where the first end of the plow blade is pivoted toward the vehicle, and between the center position and a second position, where the second end of the plow blade is pivoted toward the vehicle, and either a single link rod, a resilient connecting member, or a cam and follower mechanism connected to the first plow wing and to the plow support and configured to pivot the first plow wing relative to the plow blade during pivoting of the plow blade relative to the vehicle such that when the ploType: ApplicationFiled: February 28, 2011Publication date: August 30, 2012Applicant: Douglas Dynamics, L.L.C.Inventor: David N. Bloxdorf
-
Patent number: 7797859Abstract: A snowplow and mount assembly comprising a mount frame adapted to be secured to a vehicle, and a snowplow frame. One of the mount frame and the snowplow frame has first and second arms and the other of the mount frame and snowplow frame has first and second receivers, the first and second receivers receiving the first and second arms, respectively. Respective ones of first and second latch pins removably secure the first and second arms in the first and second receivers. A latch lever is operably associated with the first and second latch pins and simultaneously actuates the latch pins to latched and unlatched positions. The snowplow frame includes a jack stand movable to and between an extended ground contacting and snowplow frame supporting position and a retracted ground noncontacting and snowplow frame nonsupporting position.Type: GrantFiled: March 23, 2010Date of Patent: September 21, 2010Assignee: Douglas Dynamics, L.L.C.Inventors: Andre Valmont LeBlond, James Calvin Pieper, Mark Lawrence Stultz, Steven Lohry Klug, John Wallace Field, David Bloxdorf
-
Publication number: 20100175281Abstract: A snowplow and mount assembly comprising a mount frame adapted to be secured to a vehicle, and a snowplow frame. One of the mount frame and the snowplow frame has first and second arms and the other of the mount frame and snowplow frame has first and second receivers, the first and second receivers receiving the first and second arms, respectively. Respective ones of first and second latch pins removably secure the first and second arms in the first and second receivers. A latch lever is operably associated with the first and second latch pins and simultaneously actuates the latch pins to latched and unlatched positions. The snowplow frame includes a jack stand movable to and between an extended ground contacting and snowplow frame supporting position and a retracted ground noncontacting and snowplow frame nonsupporting position.Type: ApplicationFiled: March 23, 2010Publication date: July 15, 2010Applicant: Douglas Dynamics, LLCInventors: Andre Valmont LeBlond, James Calvin Pieper, Mark Lawrence Stultz, Steven Lohry Klug, John Wallace Field, David Bloxdorf
-
Patent number: 7737576Abstract: A control for a vehicle mounted accessory that has an electrically operable device. The accessory is operated by a switch that is mounted on the vehicle remote from the accessory. The switch and the electrically operable device are electrically connected by programmable controllers and a communications bus. The control has the capability of automatically determining the presence of a vehicle DRL mode, and the accessory turn signal lights are automatically illuminated to provide an accessory DRL mode. The control can automatically detect different accessories and reprogram itself to control them. The control provides a secured communications link between it and the accessory to prevent accessory theft.Type: GrantFiled: July 15, 2008Date of Patent: June 15, 2010Assignee: Douglas Dynamics, LLCInventors: Edwin A. Wayne, Clarence J. Rand
-
Publication number: 20090282706Abstract: A snow plow assembly comprises an A-frame assembly, a V-blade assembly pivoted to one end of the A-frame assembly, and a lift frame assembly pivoted to the other end of the A-frame assembly, the lift frame assembly adapted to be removably attached to a vehicle. The V-blade assembly comprises a pair of blades hinged together along inboard ends thereof, each blade of the pair of blades including first and second cutting edge plates removably secured to the blade, the first cutting edge plate fabricated of a first material, the second cutting edge plate fabricated of a second material, the first material having a greater resistance to abrasion wear than the second material.Type: ApplicationFiled: May 15, 2008Publication date: November 19, 2009Applicant: Douglas Dynamics, L.L.C.Inventors: Chad Barker, James Pieper, Mark Stultz
-
Publication number: 20090031592Abstract: A snowplow and mount assembly comprising a mount frame adapted to be secured to a vehicle, and a snowplow frame. One of the mount frame and the snowplow frame has first and second arms and the other of the mount frame and snowplow frame has first and second receivers, the first and second receivers receiving the first and second arms, respectively. Respective ones of first and second latch pins removably secure the first and second arms in the first and second receivers. A latch lever is operably associated with the first and second latch pins and simultaneously actuates the latch pins to latched and unlatched positions. The snowplow frame includes a jack stand movable to and between an extended ground contacting and snowplow frame supporting position and a retracted ground noncontacting and snowplow frame nonsupporting position.Type: ApplicationFiled: October 7, 2008Publication date: February 5, 2009Applicant: DOUGLAS DYNAMICS, L.L.C.Inventors: Andre Valmont LeBlond, James Calvin Pieper, Mark Lawrence Stultz, Steven Lohry Klug, John Wallace Field, David Bloxdorf
-
Publication number: 20080266888Abstract: A control for a vehicle mounted accessory that has an electrically operable device. The accessory is operated by a switch that is mounted on the vehicle remote from the accessory. The switch and the electrically operable device are electrically connected by programmable controllers and a communications bus. The control has the capability of automatically determining the presence of a vehicle DRL mode, and the accessory turn signal lights are automatically illuminated to provide an accessory DRL mode. The control can automatically detect different accessories and reprogram itself to control them. The control provides a secured communications link between it and the accessory to prevent accessory theft.Type: ApplicationFiled: July 15, 2008Publication date: October 30, 2008Applicant: DOUGLAS DYNAMICS, L.L.C.Inventors: Edwin A. Wayne, Clarence J. Rand
-
Patent number: 7430821Abstract: A snowplow and mount assembly comprising a mount frame adapted to be secured to a vehicle, and a snowplow frame. One of the mount frame and the snowplow frame has first and second arms and the other of the mount frame and snowplow frame has first and second receivers, the first and second receivers receiving the first and second arms, respectively. Respective ones of first and second latch pins removably secure the first and second arms in the first and second receivers. A latch lever is operably associated with the first and second latch pins and simultaneously actuates the latch pins to latched and unlatched positions. The snowplow frame includes a jack stand movable to and between an extended ground contacting and snowplow frame supporting position and a retracted ground noncontacting and snowplow frame nonsupporting position.Type: GrantFiled: September 20, 2005Date of Patent: October 7, 2008Assignee: Douglas Dynamics, L.L.C.Inventors: Andre Valmont LeBlond, James Calvin Pieper, Mark Lawrence Stultz, Steven Lohry Klug, John Wallace Field, David Bloxdorf
-
Patent number: 7400058Abstract: A control for a vehicle mounted accessory that has an electrically operable device. The accessory is operated by a switch that is mounted on the vehicle remote from the accessory. The switch and the electrically operable device are electrically connected by programmable controllers and a communications bus. The control has the capability of automatically determining the presence of a vehicle DRL mode, and the accessory turn signal lights are automatically illuminated to provide an accessory DRL mode. The control can automatically detect different accessories and reprogram itself to control them. The control provides a secured communications link between it and the accessory to prevent accessory theft.Type: GrantFiled: October 29, 2004Date of Patent: July 15, 2008Assignee: Douglas Dynamics, L.L.C.Inventors: Edwin A. Wayne, Clarence J. Rand
-
Publication number: 20070068049Abstract: A plow assembly includes a pair of plow wings which are pivotally mounted at opposite ends of a center plow. Each of the plow wings may pivot between a forwardly angled position and an aligned position. The plow assembly may pivot a trailing plow wing in response to the center plow being urged or angled toward that side of the vehicle. The plow wines may be oriented in their forwardly angled position until the center plow is at least substantially urged or pivoted toward its angled position or toward a position between the center position and the angled position. The trailing plow wing may be pivoted or urged to its aligned position in response to the center plow being substantially urged or pivoted toward its angled position or toward a position between its center position and its angled position.Type: ApplicationFiled: November 14, 2006Publication date: March 29, 2007Applicant: DOUGLAS DYNAMICS, L.L.C.Inventors: Philip Quenzi, Cal Niemela, Nels Niemela
-
Patent number: 7152883Abstract: A ballast assembly for vehicles is mounted on one vehicle portion to balance the vehicle and counterbalance the weight of an implement such as a snowplow assembly on another portion of the vehicle. The ballast assembly includes a ballast member having a predetermined weight and a contour coordinated to the vehicle shape. A vehicle mounting member removably mounts the ballast member to the vehicle such as at a hitch receiver socket or to the vehicle frame at the rear end of the vehicle. The ballast member may comprise one or more metal plates stacked and secured to one another, or a hollow enclosure either temporarily or permanently filled with a weighted material such as sand, gravel, or concrete.Type: GrantFiled: December 30, 2003Date of Patent: December 26, 2006Assignee: Douglas Dynamics, L.L.C.Inventor: Cal G Niemela
-
Patent number: 7134227Abstract: A plow assembly includes a pair of plow wings which are pivotally mounted at opposite ends of a center plow. Each of the plow wings may pivot between a forwardly angled position and an aligned position. The plow assembly may pivot a trailing plow wing in response to the center plow being urged or angled toward that side of the vehicle. The plow wings may be oriented in their forwardly angled position until the center plow is at least substantially urged or pivoted toward its angled position or toward a position between the center position and the angled position. The trailing plow wing may be pivoted or urged to its aligned position in response to the center plow being substantially urged or pivoted toward its angled position or toward a position between its center position and its angled position.Type: GrantFiled: April 29, 2004Date of Patent: November 14, 2006Assignee: Douglas Dynamics, L.L.C.Inventors: Philip J Quenzi, Cal G Niemela, Nels A Niemela
-
Publication number: 20060010722Abstract: A snowplow and mount assembly comprising a mount frame adapted to be secured to a vehicle, and a snowplow frame. One of the mount frame and the snowplow frame has first and second arms and the other of the mount frame and snowplow frame has first and second receivers, the first and second receivers receiving the first and second arms, respectively. Respective ones of first and second latch pins removably secure the first and second arms in the first and second receivers. A latch lever is operably associated with the first and second latch pins and simultaneously actuates the latch pins to latched and unlatched positions. The snowplow frame includes a jack stand movable to and between an extended ground contacting and snowplow frame supporting position and a retracted ground noncontacting and snowplow frame nonsupporting position.Type: ApplicationFiled: September 20, 2005Publication date: January 19, 2006Applicant: Douglas Dynamics, L.L.C.Inventors: Andre LeBlond, James Pieper, Mark Stultz, Steven Klug, John Field, David Bloxdorf
-
Publication number: 20060005434Abstract: A snowplow assembly comprises a lift frame and A-frame operably pivotally connected together and an actuator operably connected between the lift frame and A-frame for effecting relative pivotal movement between the lift frame and A-frame. A plow blade includes a blade frame. The blade frame includes a tube of circular cross section which is operably pivotally connected to the A-frame. The tube is pivotally received by a quadrant, which is operably connected to the A-frame. A resilient element is operable between the blade frame and A-frame normally biasing a lower edge of the plow blade forwardly. The resilient element is an elastomeric loop. The pivotal connection of the plow blade to the A-frame in combination with the resilient element provides a trip function of the plow blade. The plow blade is a composite. The circular tube of the blade frame provides torsional stiffness to the composite blade.Type: ApplicationFiled: September 13, 2005Publication date: January 12, 2006Applicant: Douglas Dynamics, L.L.C.Inventors: Michael Goy, Scott Kluck, Andre LeBlond
-
Patent number: 6944978Abstract: A snowplow and mount assembly comprising a mount frame adapted to be secured to a vehicle, and a snowplow frame. One of the mount frame and the snowplow frame has first and second arms and the other of the mount frame and snowplow frame has first and second receivers, the first and second receivers receiving the first and second arms, respectively. Respective ones of first and second latch pins removably secure the first and second arms in the first and second receivers. A latch lever is operably associated with the first and second latch pins and simultaneously actuates the latch pins to latched and unlatched positions. The snowplow frame includes a jack stand movable to and between an extended ground contacting and snowplow frame supporting position and a retracted ground noncontacting and snowplow frame nonsupporting position.Type: GrantFiled: June 11, 2001Date of Patent: September 20, 2005Assignee: Douglas Dynamics, LLCInventors: Andre Valmont LeBlond, James Calvin Pieper, Mark Lawrence Stultz, Steven Lohry Klug, John Wallace Field, David Bloxdorf
-
Patent number: 6941685Abstract: A snowplow assembly comprises a lift frame and A-frame operably pivotally connected together and an actuator operably connected between the lift frame and A-frame for effecting relative pivotal movement between the lift frame and A-frame. A plow blade includes a blade frame. The blade frame includes a tube of circular cross section which is operably pivotally connected to the A-frame. The tube is pivotally received by a quadrant, which is operably connected to the A-frame. A resilient element is operable between the blade frame and A-frame normally biasing a lower edge of the plow blade forwardly. The resilient element is an elastomeric loop. The pivotal connection of the plow blade to the A-frame in combination with the resilient element provides a trip function of the plow blade. The plow blade is a composite. The circular tube of the blade frame provides torsional stiffness to the composite blade.Type: GrantFiled: October 29, 2002Date of Patent: September 13, 2005Assignee: Douglas Dynamics, L.L.C.Inventors: Michael Goy, Scott Kluck, Andre LeBlond
-
Patent number: 6928757Abstract: In combination a mount frame adapted to be attached to a vehicle and a snowplow assembly. The mount frame comprises a pair of detachable receivers which receive a pair of horns extending rearwardly from the snowplow assembly. The snowplow assembly comprises an A-frame, a trunnion and a lift frame. A blade is attached to the front of the A-frame. A pair of spaced stand assemblies, each including a latching mechanism, support the snowplow assembly when the mount frame is separated from the snowplow assembly. The latching mechanisms secure the snowplow assembly to the mount frame.Type: GrantFiled: January 9, 2003Date of Patent: August 16, 2005Assignee: Douglas Dynamics, L.L.C.Inventors: David N. Bloxdorf, Chad T. Barker, James R. Doornek, Steven L. Klug, Steven P. Radomski
-
Publication number: 20050120595Abstract: In combination a mount frame adapted to be attached to a vehicle and a snowplow assembly. The mount frame comprises a pair of detachable receivers which receive a pair of horns extending rearwardly from the snowplow assembly. The snowplow assembly comprises an A-frame, a trunnion and a lift frame. A blade is attached to the front of the A-frame. A pair of spaced stand assemblies, each including a latching mechanism, support the snowplow assembly when the mount frame is separated from the snowplow assembly. The latching mechanisms secure the snowplow assembly to the mount frame.Type: ApplicationFiled: January 24, 2005Publication date: June 9, 2005Applicant: Douglas Dynamics, L.L.C.Inventors: David Bloxdorf, Chad Barker, James Doornek, Steven Klug, Steven Radomski