A flush toilet according to the present invention includes a bowl including a well portion, and a discharge trap conduit, the well portion includes a bottom wall formed above and in front of an inlet of the discharge trap conduit, a side wall formed to surround the bottom wall, and a connecting portion that connects an outer edge of the bottom wall and a lower edge of the side wall, the bottom wall of the well portion includes an inclined portion, and guiding portions that are formed on left and right outer sides of the inclined portion and that guide flush water or waste from front toward the inlet of the discharge trap conduit, and the inclined portion, in a side cross-sectional view, is entirely formed into an upwardly convex shape and formed to be inclined downward from front toward the inlet of the discharge trap conduit.

A flush toilet according to the present invention includes a bowl including a well portion, and a discharge trap conduit, the well portion includes a bottom wall formed above and in front of an inlet of the discharge trap conduit, a side wall formed to surround the bottom wall, and a connecting portion that connects an outer edge of the bottom wall and a lower edge of the side wall, the bottom wall of the well portion includes an inclined portion, and guiding portions that are formed on left and right outer sides of the inclined portion and that guide flush water or waste from front toward the inlet of the discharge trap conduit, and the inclined portion, in a side cross-sectional view, is entirely formed into an upwardly convex shape and formed to be inclined downward from front toward the inlet of the discharge trap conduit.

A rimless toilet pan (20) including a forward end (F), a rearward end (R), a pan bowl (28), a flushing outlet (32), a flushing water inlet (30), an inwardly facing first sidewall (34), an inwardly facing second sidewall (37) and a flushing water flow splitter (38). The flushing outlet (32) is in fluid communication with the pan bowl (28). The flushing water inlet (30) is in fluid communication with the pan bowl (28). The inwardly facing first sidewall (34) extends substantially around the top of the pan bowl (28). The substantially horizontal ledge (36) extends substantially around the bottom of the first sidewall (34). The inwardly facing second sidewall (37) extends substantially around the pan bowl (28) under the horizontal ledge (36). The flushing water flow splitter (38) is substantially adjacent a rearward end of the first sidewall (34), is in fluid communication with the flushing water inlet (30) and has a leftwards outlet (38a) and a rightwards outlet (38b). The flushing water flow balancer (40) is on a frontwards part of the first sidewall (34), includes an inwardly facing projection (40a/b/c) extending vertically through at least part of the height of the first sidewall (34) and is positioned substantially symmetrically in relation to a forward to rearward centerline (42) of the toilet pan (28).

A helical drain for a toilet is disclosed. The present invention relates to a novel toilet drain configuration. Specifically, the novel toilet drain configuration comprises a helical loop trapway. The drain of the present invention exits the toilet bowl and forms a substantially vertical tubular loop running generally parallel to the width of the bowl or stool, or perpendicular to the longitudinal axis of the bowl or stool, before being connected to a sewer. The drain of the present invention functions like a P-trap syphon in removing the contents of the bowl. The diameter of the looped tubular portion of the drain may vary by approximately 20 percent or less in the direction of the sewer connection. Sensors may be placed on the drain to monitor drain contents, fluid levels, and drain performance. The drain may be fitted with valves to control the flow of fluids and gases through the drain.

A helical drain for a toilet is disclosed. The present invention relates to a novel toilet drain configuration. Specifically, the novel toilet drain configuration comprises a helical loop trapway. The drain of the present invention exits the toilet bowl and forms a substantially vertical tubular loop running generally parallel to the width of the bowl or stool, or perpendicular to the longitudinal axis of the bowl or stool, before being connected to a sewer. The drain of the present invention functions like a P-trap syphon in removing the contents of the bowl. The diameter of the looped tubular portion of the drain may vary by approximately 20 percent or less in the direction of the sewer connection. Sensors may be placed on the drain to monitor drain contents, fluid levels, and drain performance. The drain may be fitted with valves to control the flow of fluids and gases through the drain.

In a power converter, each of a positive busbar and a negative busbar includes a first current path that has a first thermal resistance and is a current flow path between a power-source connection terminal and at least one terminal connection portion, and a second current path that has a second thermal resistance and is a current flow path between the power-source connection terminal and an element connection portion. The first thermal resistance of the first current path of at least one of the positive busbar and the negative busbar is lower than the second thermal resistance of the second current path of the at least one of the positive busbar and the negative busbar.

A flush toilet includes a bowl including a rim formed on the top edge of a bowl-shaped waste receiving surface; and a rim spout portion disposed on the rim for forming a circulating flow by spouting flush water into the bowl. The bowl further includes a shelf between the top edge of the waste receiving surface and the bottom end of the rim, and a connecting surface for connecting the outside edge of this shelf and the bottom end of the rim with a curved surface. The connecting surface is arranged so that the curvature radius of its curved surface in the vertical direction is essentially constant from the bowl front portion across both the left and right sides, and so that its position rises toward the left and right sides from the front portion of the bowl.

A flush toilet includes a bowl including a rim formed on the top edge of a bowl-shaped waste receiving surface; and a rim spout portion disposed on the rim for forming a circulating flow by spouting flush water into the bowl. The bowl further includes a shelf between the top edge of the waste receiving surface and the bottom end of the rim, and a connecting surface for connecting the outside edge of this shelf and the bottom end of the rim with a curved surface. The connecting surface is arranged so that the curvature radius of its curved surface in the vertical direction is essentially constant from the bowl front portion across both the left and right sides, and so that its position rises toward the left and right sides from the front portion of the bowl.

A flush toilet includes: a bowl including a rim formed on the top edge of a bowl-shaped waste receiving surface, a discharge path connected to the bottom of this bowl for discharging waste, and a rim spout portion disposed on this rim for spouting flush water within the bowl to form a circulating flow. The bowl further includes a shelf, formed in the circumferential direction from the rim spout portion between the waste receiving surface top edge and the rim bottom end, for guiding flush water spouted from the rim spout portion in the circumferential direction. The rim spout portion is disposed on either the left or right of either the side region or the front region of the bowl, and forms a rim spout port to spout flush water rearward. The width of the shelf is set to decrease from the side to the rear of the bowl.

A flush toilet includes: a bowl including a rim formed on the top edge of a bowl-shaped waste receiving surface, a discharge path connected to the bottom of this bowl for discharging waste, and a rim spout portion disposed on this rim for spouting flush water within the bowl to form a circulating flow. The bowl further includes a shelf, formed in the circumferential direction from the rim spout portion between the waste receiving surface top edge and the rim bottom end, for guiding flush water spouted from the rim spout portion in the circumferential direction. The rim spout portion is disposed on either the left or right of either the side region or the front region of the bowl, and forms a rim spout port to spout flush water rearward. The width of the shelf is set to decrease from the side to the rear of the bowl.