Daniel P Modzeleski

US Patent:

20060260913, Nov 23, 2006

Filed:

May 18, 2006

Appl. No.:

11/419109

Inventors:

Stephen Wolf - Grand Rapids MI, US
Daniel Modzeleski - Grand Rapids MI, US
Dennis Schuitema - Ada MI, US

International Classification:

B65G 21/14
B65G 17/24

US Classification:

198812000, 198779000

Abstract:

An extendable multi-stage trailer loader or unloader apparatus includes a frame assembly having first and second frame members that are interconnected. The second frame member is selectively extendable from the first frame member. A first conveying surface is supported by the first frame member and defines a first conveyor. The first conveying surface is operable to convey articles between an upstream end of the first conveyor and a downstream end of the first conveyor. A second conveying surface is supported by the second conveying member. The second conveying surface is defined by a second conveyor. The second conveying surface is operable for conveying articles between the downstream end of the first conveyor and a downstream end of the second conveyor. The second conveyor includes a flexible support supporting the second conveying surface.

US Patent:

55597254, Sep 24, 1996

Filed:

Oct 7, 1994

Appl. No.:

8/319961

Inventors:

Edward G. Nielson - Grands Rapids MI
Timothy S. DeBruine - Grands Rapids MI
Daniel P. Modzeleski - Belmont MI
Ross C. Stoepker - Kentwood MI

Assignee:

Laser Alignment, Inc. - Grand Rapids MI

International Classification:

G05D 104
E02F 502

US Classification:

364550

Abstract:

A method and apparatus for controlling a trencher having a tractor that is propelled along terrain and a trenching implement adjustably mounted to the tractor at a rearward portion thereof with respect to movement of the tractor along the terrain includes monitoring movement of the tractor as it is propelled along terrain in order to survey the contour of the terrain and adjusting the position of the trenching implement with respect to the tractor as a function of the contour of the terrain in the vicinity of the trencher.