Weighing scale apparatus

A low profile, electronic weighing scale, comprising:

• (a) a base having a predetermined number of recessed load cell mounts in a predetermined arrangement, each one of said load cell mounts having two support positions and a strain cavity positioned between said two support positions, said strain cavity providing a deflection gap between said load cell and said base, said base further having a perimeter wall of a predetermined height, said perimeter wall defining a cavity in said base;
• (b) a platform for contact with a load, said platform being disposed above and secured to said base, said platform having a bottom surface and a plurality of side walls of a predetermined height on said bottom surface, each of said side walls having a predetermined arrangement with respect to said perimeter wall, said bottom surface further having a number of load cell recesses equal to the number of load cell mounts, each one of said load cell recesses containing a concave engagement surface;
• (c) a number of load cells equal to the number of load cell mounts, each one of said load cells being attached to said support position of one of said load cell mounts of said base, each one of said load cells having a cupped surface;
• (d) a number of load bearings equal to the number of said load cells, each one of said load bearings being in operational contact with said engagement surface of said platform and said cupped surface of one of said load cells;
• and
• (e) an electrical display affixed to said base, said electrical display having controls and a power supply.

A low profile, electronic weighing scale used to weigh and balance aircraft as well as other vehicles, comprising:

• (a) a base having six recessed load cell mounts in a predetermined arrangement, each load cell mount having two support positions and a strain cavity positioned between said two support positions, said strain cavity providing a deflection gap between said load cell and said base, said base further having recessed wireways connecting each load cell mount, and having a perimeter wall of a predetermined height, said perimeter wall defining a cavity in said base, said perimeter wall having a tapered exterior side, a vertical interior side, a top and a bottom, said top being narrower than said bottom, said perimeter wall further having a plurality of threaded securing screw apertures for reception of a plurality of securing screws;
• (b) a platform for contact with a load, said platform being disposed above and secured to said base, said platform having a non-skid top surface, a bottom surface, and two side walls of a predetermined height on said bottom surface, each of said side walls fitting next to said perimeter wall and within said cavity, said side walls further having a plurality of openings aligned with said securing screw apertures, said openings being sized for receiving and securing screws in a moveable relationship that operationally secures said platform to said base, said bottom surface further having six load cell recesses aligned above said load cell mounts, each one of said load cell recesses containing a concave engagement surface;
• (c) six load cells, each one of said load cells being attached to said two support positions of one of said six load cell mounts of said base, each one of said load cells having a cupped surface;
• (d) six engagement members, each one of said engagement members being in operational contact with said engagement surface of said platform and said cupped surface of one of said load cells, said engagement member being a load bearing;
• (e) an electrical display affixed to said base, said electrical display having controls and a power supply;
• and
• (f) a handle attached to said electrical display.

A portable, high-capacity, low profile weighing scale, comprising:

• (a) a base having a predetermined number of load cell mounts;
• (b) a platform for contact with a load, said platform being disposed above and secured to said base, said platform having a plurality of concave engagement surfaces equal to the number of load cell mounts;
• (c) a number of double ended shear beam load cells equal to the number of load cell mounts, each one of said load cells having a generally thin, centered stress isolation area formed between gauging recesses, said stress isolation area having a first side and an opposing second side, at least one strain gauge being attached to both said first side and said second side, each one of said load cells being attached to one of said load cell mounts of said base and being positioned between said base and said platform, each one of said load cells having a top surface with a cupped surface positioned over said stress isolation area;
• and
• (d) a number of load bearings equal to the number of said load cells, each one of said load bearings being in operational contact with one of said concave engagement surfaces of said platforimn and with said cupped surface of one of said load cells.