Michael F Stephan

US Patent:

7654016, Feb 2, 2010

Filed:

Jan 17, 2007

Appl. No.:

11/623854

Inventors:

Michael Stephan - Shafer MN, US

International Classification:

E01H 5/06

US Classification:

37231, 37266, 172273, 172275, 172811

Abstract:

A snow pusher attachment for use in conjunction with a straight blade angle-type snow plow mounted to a work vehicle is disclosed. The attachment consists of side panels, connected by horizontal members. The pusher attachment is secured to the snow plow by bracket assemblies, attached to the upper edge of the snow plow that engage hooks on the upper, rear portion of the pusher attachment. The pusher can be secured or released from the snowplow by manipulation of the plow blade allowing quick and repeated conversion of a snow plow into a snow pusher box and visa versa.

US Patent:

7788829, Sep 7, 2010

Filed:

Nov 20, 2009

Appl. No.:

12/623113

Inventors:

Michael Stephan - Shafer MN, US

International Classification:

E01H 5/06

US Classification:

37231, 172273

Abstract:

A snow pusher attachment for use in conjunction with a straight blade angle-type snow plow mounted to a work vehicle. This pusher allows a work vehicle to capture, contain, and relocate large amounts of snow very quickly and efficiently. The attachment consists of side panels, connected by horizontal members between. This pusher attachment is secured to the snow plow by bracket assemblies, attached to the upper edge of the snow plow that engage hooks on the upper, rear portion of the pusher attachment. The attachment does not require the operator to exit the work vehicle to secure or release it from the snowplow. Accordingly, the attachment allows the quick and repeated conversion of a snow plow into a snow pusher box and visa versa.

US Patent:

7941947, May 17, 2011

Filed:

Jun 17, 2009

Appl. No.:

12/486538

Inventors:

Michael Stephan - Shafer MN, US

International Classification:

E01H 5/06

US Classification:

37231, 37266, 172273, 172275

Abstract:

A snow pusher attachment for use in conjunction with a straight blade angle-type snow plow mounted to a work vehicle. This pusher allows a work vehicle to capture, contain, and relocate large amounts of snow very quickly and efficiently. The attachment consists of side panels, connected by horizontal members between. This pusher attachment is secured to the snow plow by bracket assemblies, attached to the upper edge of the snow plow that engage hooks on the upper, rear portion of the pusher attachment. The attachment does not require the operator to exit the work vehicle to secure or release it from the snowplow. Accordingly, the attachment allows the quick and repeated conversion of a snow plow into a snow pusher box and visa versa.

US Patent:

20130227863, Sep 5, 2013

Filed:

Feb 21, 2013

Appl. No.:

13/773272

Inventors:

Michael Frederick Stephan - Shafer MN, US

International Classification:

E01H 5/06

US Classification:

37232

Abstract:

A reversible wing plow including a hitch, a moldboard and a moldboard shifting mechanism. The hitch is coupleable to the rear of a prime mover. The moldboard is operably coupled to the hitch proximate an inboard end and rotatable about a first horizontal axis that extends outwardly from the hitch generally parallel to a direction of forward movement of the prime mover. The moldboard shifting mechanism includes first and second linear actuators, both of which are coupled to the hitch at one end and coupled to opposing sides of a rotation crank plate on the other end. The crank plate is further operably coupled to the moldboard, whereby the moldboard is rotatably shiftable to the driver or passenger side of the prime mover, or to a vertically oriented transport position.

US Patent:

20210129742, May 6, 2021

Filed:

Oct 30, 2020

Appl. No.:

17/085112

Inventors:

Michael F. Stephan - St. Croix Falls WI, US

International Classification:

B60Q 1/24
E01H 5/06

Abstract:

The laser light safety guide to assist in guiding a prime mover utilize for snowplowing including a laser that can be mounted within a cab of the prime mover and oriented to emit a visible laser beam directed through a transparent structure the prime mover. The laser light safety guide further comprises a shielding structure opaque to the visible laser beam that is trimmable or adjustable to enclose a space extending from a portion of the laser from which the visible laser beam is emitted to the transparent structure the prime mover. The shielding structure mitigates or contains reflection of the visible laser beam from an interior surface of the transparent structure.

US Patent:

20200392693, Dec 17, 2020

Filed:

Jan 15, 2020

Appl. No.:

16/742949

Inventors:

Michael F. Stephan - St. Croix Falls WI, US

International Classification:

E02F 3/36

Abstract:

An implement attachment adapter, including a centrally located top clevis; two spaced apart lower devises located below the centrally located top clevis and on opposing sides of a line extending vertically through the top clevis. The two spaced apart lower devises being are recessed into or behind a first face of a flat plate. The flat plate further includes side tabs located proximate each horizontal peripheral edge thereof extending outwardly away from the first face of the plate. A bottom tab extends outwardly downwardly away from the first face at an obtuse angle relative to the plate. A top bar extends across proximate a top portion of the plate and outwardly away from the first face of the plate and is oriented at an acute angle to the plate. The plate further presents engagement apertures and a second face opposing the first face to which the implement may be coupled.

US Patent:

20190301120, Oct 3, 2019

Filed:

Mar 5, 2019

Appl. No.:

16/292666

Inventors:

Michael F. Stephan - Osceola WI, US

International Classification:

E01H 5/06

Abstract:

A snow plow cutting edge, including at least one elongate backing plate removably fastened to a lower edge of a snow plow moldboard or to a cutting edge trip mechanism. The elongate backing plate has a long axis and a plurality of biasing member engaging structures. Slide bars are engaged to the elongate backing plate. The slide bars are arranged proximate one another along the long axis of the elongate backing plate and are slidable generally perpendicular to the long axis. Biasing members are engaged between the biasing member engaging structures and the slide bars such that the slide bars are biased generally perpendicular to the long axis toward a surface to be cleared of snow. Replaceable cutting edge sections are removably attached to one of the plurality of slide bars and located adjacent at least one of the other replaceable cutting edge sections.

US Patent:

20180327989, Nov 15, 2018

Filed:

May 10, 2018

Appl. No.:

15/976499

Inventors:

Michael F. Stephan - Taylors Falls MN, US

International Classification:

E01H 5/06

Abstract:

A snow plow cutting edge, including at least one elongate backing plate removably fastened to a lower edge of a snow plow moldboard or to a cutting edge trip mechanism. The elongate backing plate has a long axis and a plurality of biasing member engaging structures. Slide bars are engaged to the elongate backing plate. The slide bars are arranged proximate one another along the long axis of the elongate backing plate and are slidable generally perpendicular to the long axis. Biasing members are engaged between the biasing member engaging structures and the slide bars such that the slide bars are biased generally perpendicular to the long axis toward a surface to be cleared of snow. Replaceable cutting edge sections are removably attached to one of the plurality of slide bars and located adjacent at least one of the other replaceable cutting edge sections.