Mark J Hoffmann

US Patent:

20090110524, Apr 30, 2009

Filed:

Oct 30, 2007

Appl. No.:

11/928974

Inventors:

Mark A. Hoffmann - Waterloo IL, US

International Classification:

B60P 1/36

US Classification:

414507, 414813

Abstract:

A land vehicle for transporting and distributing aggregate material has an opening formed in the floor portion of a cargo area. A funnel rotatably connected to a bottom side of the floor portion beneath the opening communicates with a receiving end of a boom having a conveyor. The boom is hingeably connected to the funnel and fully stowable beneath the floor portion of the chassis when not in use. During operation, the boom is rotated outward by the funnel and is extended upward. A flow of aggregate material enters the funnel through the opening in the floor portion and is transferred off the vehicle by the conveyor.

US Patent:

20140090300, Apr 3, 2014

Filed:

Oct 1, 2013

Appl. No.:

14/043300

Inventors:

Mark Hoffmann - Waterloo IL, US

International Classification:

B65D 88/58
E05F 15/20

US Classification:

49 25, 49281, 49280, 49506

Abstract:

A door actuator assembly comprising a base plate mounted to a container. The container includes a distribution orifice and a trap door mounted to the container that moves selectively between a closed position covering the distribution orifice, and an open position not fully covering the distribution orifice. The assembly includes a hook member mounted to the base plate including a hook. The hook engages with the trap door. The trap door moves linearly when the hook member moves. The assembly includes a hook actuator assembly mounted to the base plate, including a hook actuation arm coupled to the hook member. The hook actuation arm extends and retracts, moving the hook member linearly along the base plate when the hook actuation arm extends and retracts, causing the hook member to move the trap door selectively between the closed position and the open position.