Douglas C Mittag
Engineers at Tudor Ct, Lemont, IL

4113110, Sep 12, 1978

Mar 28, 1977

5/782185

Douglas C. Mittag - Bolingbrook IL

Aurora Equipment Company - Aurora IL

A47B 4500, A47F 500, A47B 9500

211191

A storage rack is provided with posts and shelving for supporting goods. The posts are of the type having keyhole slots. Several types of post protectors are disclosed. Both of the post protectors have fasteners engageable with the keyhole slots to provide means to secure them to a storage rack to minimize damage to the storage rack posts in the event that the posts are accidentally struck by various types of vehicles such as fork lift trucks and the like. The one post protector is provided for mounting on the front face of the post and extends vertically a number of feet to protect the storage rack post from ground level upwards to a desired point. A second corner post protector is provided for mounting at right angles to the other first described post protector and provides means to shield the post from blows which might be directed or received at generally right angles to those receivable against the other first described post protector.

7118185, Oct 10, 2006

Nov 17, 2003

10/714776

Douglas C. Mittag - Bolingbrook IL, US
Gary Anderson - Sandwich IL, US

Richards-Wilcox, Inc. - Aurora IL

A47B 97/00

312352, 312326

In accordance with the invention, a method and system is provided by which door panels are installed on the cabinet. A bottom support and a top support are installed to corner posts in the cabinet. A bottom door jamb is installed on the bottom support. Pivot pins are provided at a top and bottom of each of the right and left door panels. With the door panels upright, the respective bottom pivot pins are inserted in respective apertures of the bottom door jamb. An upper door jamb is positioned such that apertures of the upper door jamb are received over the respective top pivot pins of the right and left door panels. The upper door jamb is then attached to the top support.

6105513, Aug 22, 2000

May 11, 1999

9/309874

Douglas C. Mittag - Bolingbrook IL

Richards-Wilcox, Inc. - Aurora IL

A47B 900

108107

A shelving unit apparatus and method comprises vertical posts arranged at corners of a rectangle. A plurality of shelves are vertically spaced from one another and supported by the posts. At a front of the shelving unit, a channel-shaped base rests on a floor on which the shelving unit rests, the base being attached to the front two posts at ends of the base by projecting head rivets received in keyhole-shaped slots in the front two posts. At least one aperture in the base portion of the base receives a mounting bolt to be anchored to the floor. The bottom shelf has its front end resting on an upper edge of the front vertical wall of the base. A rear of the bottom shelf is supported by a shelf holding element attached to the two posts at the rear of the shelving unit.

7175243, Feb 13, 2007

May 10, 2006

11/431210

Douglas C. Mittag - Bolingbrook IL, US
Gary Anderson - Sandwich IL, US

Richards-Wilcox, Inc. - Aurora IL

A47B 49/00

312326

In accordance with the invention, a method and system is provided by which door panels are installed on the cabinet. A bottom support and a top support are installed to corner posts in the cabinet. A bottom door jamb is installed on the bottom support. Pivot pins are provided at a top and bottom of each of the right and left door panels. With the door panels upright, the respective bottom pivot pins are inserted in respective apertures of the bottom door jamb. An upper door jamb is positioned such that apertures of the upper door jamb are received over the respective top pivot pins of the right and left door panels. The upper door jamb is then attached to the top support.

4041646, Aug 16, 1977

Nov 24, 1975

5/634503

Douglas C. Mittag - Bolingbrook IL

Aurora Equipment Company - Aurora IL

E05D 700

49385

A rotatable gate floor entrance has one or two gates which are pivotably attached at a lower corner to a post structure connected to a floor. The gate or gates rotate in a vertical plane from an open to a closed position. When a single gate is used, a gate lock connects the gate to a second vertical post. When two gates are used, the first gate is rotatably connected at a lower corner to a first post support and the second gate is attached in similar fashion to a second vertical post. Both the first and second gates rotate in a vertical plane and, when placed in a closed position, have side edges which abut one another. The two gates are locked in this position by upper and lower channel members mounted to the gates.

4118816, Oct 10, 1978

Oct 6, 1977

5/839840

Douglas C. Mittag - Bolingbrook IL

Aurora Equipment Company - Aurora IL

E01D 100

14 695

A crossover or bridge for shipment as a compact unit for assembly at an installation site comprising a bridge section and a pair of stairways for connection with opposite ends of the bridge section. The bridge section is disposed in an elevated position relative to bottom ends of the stairways when assembled therewith for spanning an object. The bridge section comprises a pair of transversely spaced crossover panels with a grating or decking carried thereon. Readily assembled joint means are provided between the stairways and the bridge section at its opposite ends.