Electronic hand-held measuring device for obtaining the dimensional weight of a shipment of freight

A hand-held measuring device for obtaining the dimensional weight of a shipment of freight of boxes by measuring the volume of each box in the shipment of freight and maintaining an accumulated total of the volume of the boxes measured, comprising:

• an outer housing having a first end and a second end;
• a wheel attached to said first end of said outer housing;
• wheel rotation detection means for detecting the amount of rotation of said wheel;
• an input data switch;
• a memory storage device having a plurality of memory storage locations located therein;
• input data count means for maintaining an input data switch actuation count and for incrementing by one said input data switch actuation count each time the input data switch is actuated;
• linear conversion means for converting the amount of rotation of said wheel as detected by said wheel rotation detection means into a linear amount of displacement corresponding to the distance traversed by said wheel after an actuation of said input data switch;
• means for storing said linear amount of displacement in a first memory location of said memory storage device if said input data switch actuation count is one after said input data switch actuation count has been incremented by said input data count means;
• means for storing said linear amount of displacement in a second memory location of said memory storage device if said input data switch actuation count is two after said input data actuation count has been incremented by said input data count means;
• means for storing said linear amount of displacement in a third memory location of said memory storage device if said input data switch actuation count is three after said input data actuation count has been incremented by said input data count means;
• box volume determination means for multiplying each linear displacement value stored in said first, second, and third memory locations after said linear displacement value generated by said linear conversion means has been stored in said third memory location so as determine the box volume of a box of the shipment of freight just measured by-said hand-held measuring device;
• and
• total volume determination means for using said box volume determined by said box volume determination means to arrive at a total box volume of the boxes of the shipment of freight measured thus far by said hand-held measuring device.