referring to the drawings particularly by reference numbers wherein like numerals refer to like parts , fig1 and 2 illustrate the various views of the upper and horizontal surfaces of a debris dust pan 10 having an interior bottom surface 20 with a generally rectangular footprint ( as is best seen in fig2 ). as will be understood , the actual shape of the interior bottom surface 20 may be any desired shape , but a generally rectangular shape is shown in fig1 and 2 . the dust pan 10 also includes side walls 30 on either side of the bottom surface 20 . as shown , each side wall 30 includes an upper lip 35 for stability . each upper lip 35 may include a front portion 35 a and a rear portion 35 b . each rear portion 35 b of each upper lip 35 preferably includes a side handle 40 . as shown , rear portion 35 b may be wider than front portion 35 a to accommodate a side handle 40 formed therein . as is also shown , side handle 40 may be formed as a depression 45 in the rear portion 35 b of upper lip 35 . however , other structures and techniques for forming handles as are known in the art may instead be used . a rear wall 50 extends generally between the side walls 30 , and the side walls extend generally perpendicularly from the rear wall 50 to a front opening 60 . front opening 60 allows for debris to be swept onto the bottom surface 20 , where it is contained thereon by the side walls 30 and rear wall 50 . bottom surface 20 may further include a sloped front portion 65 which extends to the front opening 60 , to assist the user in moving debris onto the bottom surface 20 . as structured , the dust pan 10 has a center of gravity which is approximated by point 70 . of course , it will be understood that the center of gravity may change depending on the specific structure and weighting of the dust pan 10 . further , the exact center of gravity may change when the dust pan 10 is loaded with debris . however , point 70 is used simply as an example , and as a point of reference . a center handle 80 is preferably located extending from the rear wall 50 into the footprint of the interior bottom surface 20 . preferably , the center handle 80 extends toward and / or to the center of gravity 70 of the dust pan 10 . thus , the center handle 80 preferably extends generally perpendicularly to the rear wall 50 of the dust pan 10 , and generally parallel with the side handles 40 . as shown , the center handle 80 is formed from an extension 85 of rear wall 50 . the extension 85 extends generally perpendicularly from rear wall 50 . an opening 90 is provided in the extension 85 to form the center handle 80 thereabove , and to provide clearance for placement of the operator &# 39 ; s hand . alternatively , center handle 80 may be fixedly attached to rear wall 50 in a cantilever fashion thereby requiring no additional opening 90 or extension 85 other than center handle 80 . other structures for forming center handle 80 are also envisioned , as would be known in the art . by positioning the center handle 80 within the footprint of the bottom surface 20 of the dust pan , extending to and / or towards the center of gravity 70 , the dust pan 10 is more balanced when lifted by the center handle 80 even when loaded . additionally , for very heavy loads , the two side handles 40 which may also be positioned generally on either side of the center of gravity 70 allow for a balanced , two - handed lifting of the dust pan 10 . as noted above , as shown the dust pan 10 includes side walls 30 which each have an upper lip 35 . each such upper lip 35 may be curved outwardly from its respective side wall 30 to form the upper lip 35 . alternatively , upper lips 35 may take the shape of a 90 degree angle as it meets the top of side wall 30 , or a “ t ” shape at the top of side wall 30 , or any other suitable structure as would be understood in the art . alternatively , upper lip 35 may include no front portion 35 a , instead having only the rear portion 35 b to provide for a location for side handles 40 . alternatively , if side handles 40 are formed by a structure other than a depression 45 in upper lip 35 , upper lip 35 may be removed altogether . for a non - limiting example , side handles 40 may be formed simply by creating a void or hole in the side walls 30 . fig3 and 4 illustrate the exterior and bottom of the dust pan 10 . as shown in fig1 and 4 , the side walls 30 may slope downward as it approaches the front opening 60 . alternatively , side walls 30 may remain generally rectangular when viewed from the side , providing no sloped forward portion . fig4 further demonstrates the exterior underside surface 90 of the dust pan 10 . as can be seen , reinforcing ribs 95 may also be positioned along the front lower edge 100 of front opening 60 . fig4 further demonstrates anti - skid elements 110 which may be fixedly attached to the underside surface 90 of dust pan 10 . such anti - skid elements may be made of rubber or any other suitable material , and may be affixed to the dust pan 10 using adhesive or other comparable fastening method known in the art . thus , there has been shown and described several embodiments of a novel large debris dust pan . as is evident from the foregoing description , certain aspects of the present invention are not limited by the particular details of the examples illustrated herein , and it is therefore contemplated that other modifications and applications , or equivalents thereof , will occur to those skilled in the art . the terms “ having ” and “ including ” and similar terms as used in the foregoing specification are used in the sense of “ optional ” or “ may include ” and not as “ required ”. many changes , modifications , variations and other uses and applications of the present invention will , however , become apparent to those skilled in the art after considering the specification and the accompanying drawings . all such changes , modifications , variations and other uses and applications which do not depart from the spirit and scope of the invention are deemed to be covered by the invention which is limited only by the claims which follow .
the present invention relates to a dust pan with a handle generally centrally located within the footprint of the dust pan . the handle extends toward the center of gravity of the dust pan to better distribute the weight of the payload during transportation between loading and unloading locations . the dust pan may also incorporate side handles on the upper surface of opposing side walls to provide for enhanced two - handed carrying of heavy loads .