James W Pieper

US Patent:

6944978, Sep 20, 2005

Filed:

Jun 11, 2001

Appl. No.:

09/878744

Inventors:

Andre Valmont LeBlond - Owlshead ME, US
James Calvin Pieper - Glen Cove ME, US
Mark Lawrence Stultz - Whitefield ME, US
Steven Lohry Klug - Union ME, US
John Wallace Field - Hope ME, US
David Bloxdorf - Hubertus WI, US

Assignee:

Douglas Dynamics, LLC - Milwaukee WI

International Classification:

E01H005/04

US Classification:

37231, 172272

Abstract:

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. The latch lever operably frees the jack stand for movement into the extended position when the latch pins are in the unlatched position and operably prevents jack stand movement maintaining the jack stand in the retracted position when the latch pins are in the latched position.

US Patent:

7430821, Oct 7, 2008

Filed:

Sep 20, 2005

Appl. No.:

11/231072

Inventors:

Andre Valmont LeBlond - Owlshead ME, US
James Calvin Pieper - Glen Cove ME, US
Mark Lawrence Stultz - Whitefield ME, US
Steven Lohry Klug - Union ME, US
John Wallace Field - Hope ME, US
David Bloxdorf - Hubertus WI, US

Assignee:

Douglas Dynamics, L.L.C. - Milwaukee WI

International Classification:

E01H 5/00

US Classification:

37231, 37266, 172274, 172817

Abstract:

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. The latch lever operably frees the jack stand for movement into the extended position when the latch pins are in the unlatched position and operably prevents jack stand movement maintaining the jack stand in the retracted position when the latch pins are in the latched position.

US Patent:

7681334, Mar 23, 2010

Filed:

Oct 7, 2008

Appl. No.:

12/246671

Inventors:

Andre Valmont LeBlond - Owlshead ME, US
James Calvin Pieper - Glen Cove ME, US
Mark Lawrence Stultz - Whitefield ME, US
Steven Lohry Klug - Union ME, US
John Wallace Field - Hope ME, US
David Bloxdorf - Hubertus WI, US

Assignee:

Batesville Services, Inc. - Batesville IN

International Classification:

E01H 5/00

US Classification:

37231, 37266, 172274, 172817

Abstract:

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. The latch lever operably frees the jack stand for movement into the extended position when the latch pins are in the unlatched position and operably prevents jack stand movement maintaining the jack stand in the retracted position when the latch pins are in the latched position.

US Patent:

7797859, Sep 21, 2010

Filed:

Mar 23, 2010

Appl. No.:

12/729473

Inventors:

Andre Valmont LeBlond - Owlshead ME, US
James Calvin Pieper - Glen Cove ME, US
Mark Lawrence Stultz - Whitefield ME, US
Steven Lohry Klug - Union ME, US
John Wallace Field - Hope ME, US
David Bloxdorf - Hubertus WI, US

Assignee:

Douglas Dynamics, L.L.C. - Milwaukee WI

International Classification:

E01H 5/00

US Classification:

37231, 172274

Abstract:

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. The latch lever operably frees the jack stand for movement into the extended position when the latch pins are in the unlatched position and operably prevents jack stand movement maintaining the jack stand in the retracted position when the latch pins are in the latched position.

US Patent:

20090282706, Nov 19, 2009

Filed:

May 15, 2008

Appl. No.:

12/121189

Inventors:

Chad Barker - Franksville WI, US
James Pieper - Glen Cove ME, US
Mark Stultz - Whitefield ME, US

Assignee:

Douglas Dynamics, L.L.C. - Milwaukee WI

International Classification:

E01H 5/12

US Classification:

37196, 37266

Abstract:

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.

US Patent:

53535308, Oct 11, 1994

Filed:

Sep 2, 1992

Appl. No.:

7/939331

Inventors:

James C. Pieper - Spruce Head ME

Assignee:

Douglas Dynamics, Inc. - Milwaukee WI

International Classification:

E01H 504

US Classification:

37231

Abstract:

Detachably connecting a snow plow assembly (20) to a vehicle (22). The snow plow assembly includes a vehicle mount frame (28) and a lift assembly (30). The mount frame is for connecting to a vehicle frame (26) behind a front bumper (24). The lift assembly includes an A-frame (42) and a lift frame (44) with the forward end (70) of the A-frame for supporting a snow blade (40). Means (75) is provided for pivotally connecting a rear end (74) of the A-frame to the lift frame so that the A-frame is free to rotate relative to the lift frame. Additional means (82) is provided for releasably connecting the lift frame to the mount frame whereby the lift assembly can be attached to or detached from the mount frame as a single unit while leaving the mount frame connected to the vehicle. Preferred embodiments include connecting means (82) being provided with a U-shaped channel (84) having means (88) for horizontally aligning the mount frame relative to the channel when attaching the lift frame to the mount frame, the mount frame provided with means (96) for vertically guiding the U-shaped channel into a slot (104) on the mount frame, the mount frame being connected to the channel by a retractable spring pin (86) and the lift frame including an actuator (56) for raising and lowering the A-frame and the snow blade.