A concrete wall form having spaced-apart wall forms forming opposing surfaces that define a cavity for forming a concrete wall are provided with a plurality of improved lighter weight wall form ties that hold the walls in a desired relationship. The improved wall form tie includes an elongate strip of material having two opposite elongate edges and a fastening aperture defined at each of two opposite ends of the elongate strip for attachment of the wall tie to wall forms. A plurality of notches spaced-apart along each of the two opposite elongate edges of the strip between the fastening apertures facilitate proper placement and retention of reinforcing bars in a cavity defined between the concrete wall forms. Weight-reducing apertures defined within an area between adjacent notches provide recyclable scrap material and reduce the weight of the wall form tie, thereby reducing manufacturing and freight costs.
A waler clamp having a structure that facilitates placement of a waler board between upper and lower plates of the waler clamp, and, at the same time, provides excellent rigidity and strength against deformation and twisting of the waler clamp as a wedge is driven through openings in the waler clamp to wedge a board against abutting vertical frame members of adjacent concrete wall forms is provided. The clamp includes an upper plate having a hook for engaging the wall form, a lower plate spaced below the upper plate, the upper and lower plates interconnected at respective longitudinal edges by a side web having an opening adapted to receive a waler board.
Mark L. Graham - Holland MI, US David C. Shidler - Holland MI, US
International Classification:
F23H 13/00
US Classification:
126161
Abstract:
An improved burnpot assembly for a stove which allows clinker to be removed from the burnpot while simultaneously maintaining combustion includes a burnpot holder having an immovable floor, a burnpot movably supported on the burnpot holder, the burnpot including a front wall and an opposite back wall. The burnpot is movable with respect to the floor between a normal fuel burning position in which the walls of the burnpot and the immovable floor define a burnpot for combustion and a clinker removal position in which the burnpot is disposed laterally adjacent the immovable floor to allow clinker to drop from between the walls of the burnpot, such as into a clinker collection pan near the bottom of the stove.
David C. Shidler - Holland MI, US Mark L. Graham - Holland MI, US
International Classification:
A47J 37/07
US Classification:
99341
Abstract:
A cooking grill includes a food cooking chamber that is at least partially defined by a lid assembly having stationary side walls and a closure panel moveable by rotation around a vertical axis disposed inwardly of the stationary side walls (i.e., toward the center of the cooking chamber). Alternative means may be provided for allowing movement of the closure panel along a path concentric with stationary side walls of the lid assembly between a closed position and an open position. Movement of the closure panel with respect to the lid member defines a variably sized opening between a vertical edge of the closure panel and a vertical edge of the lid member while leaving a roof section of the lid member positioned over the food on the food cooking surface to better retain heat when the closure panel is in an open position.