초록 ▼

A water chiller includes a cooling tank and a cooling device positioned at an upper portion of the cooling tank. The cooling device includes a cooling probe positioned within the cooling tank at an upper region thereof and being operable to cool the water at the upper region of the cooling tank. The

A water chiller includes a cooling tank and a cooling device positioned at an upper portion of the cooling tank. The cooling device includes a cooling probe positioned within the cooling tank at an upper region thereof and being operable to cool the water at the upper region of the cooling tank. The cooled water increases in density and descends toward the bottom or lower region of the cooling tank, while warmer water positioned in the lower region rises upwards toward the cooling probe, where it is cooled by the cooling probe. The water cooler thus continually cools and mixes the water within the cooling tank to maintain the water at a cool temperature. The cool water at the lower region of the tank is discharged from the cooling tank at an outlet positioned at or near the bottom of the cooling tank.

대표청구항 ▼

A water chiller includes a cooling tank and a cooling device positioned at an upper portion of the cooling tank. The cooling device includes a cooling probe positioned within the cooling tank at an upper region thereof and being operable to cool the water at the upper region of the cooling tank. The

A water chiller includes a cooling tank and a cooling device positioned at an upper portion of the cooling tank. The cooling device includes a cooling probe positioned within the cooling tank at an upper region thereof and being operable to cool the water at the upper region of the cooling tank. The cooled water increases in density and descends toward the bottom or lower region of the cooling tank, while warmer water positioned in the lower region rises upwards toward the cooling probe, where it is cooled by the cooling probe. The water cooler thus continually cools and mixes the water within the cooling tank to maintain the water at a cool temperature. The cool water at the lower region of the tank is discharged from the cooling tank at an outlet positioned at or near the bottom of the cooling tank. ang portion having a notch and an aperture formed therein, the adapter comprising: a base member having first and second ends, first and second surfaces extending between the first and second ends, an opening formed in the first and second surfaces proximate the first end, the opening receiving an axle of the tool, a slot formed in the first surface, the slot extending from proximate the opening to the second end receiving the tang portion of the saw, and first and second projections extending into the slot, the first projection engaging the notch of the saw, the second projection received in the aperture of the saw to align the saw with the adapter; and a clip pivotally coupled to the base member, the clip movable between a closed position in which the saw is retained in and secured to the base member and an open position in which the saw is removable from the base member, the clip including means for locking the clip in the closed position. 6. The tool of claim 5, wherein the locking means includes an opening formed in the clip, the opening receiving the second projection when the adapter is in the closed position. 7. The tool of claim 6, wherein the locking means further includes one of a detent boss and a detent hole formed in the clip, the one of the detent boss and the detent hole cooperating with the other of the detent boss and the detent hole located on the base member when the clip is in the closed position. 8. The tool of claim 7, wherein the detent boss is on the clip and the detent hole is formed in the second surface of the base member. 9. A saw attachment mechanism for a tool, comprising: a tool; a base member pivotally attached to the tool by an axle extending through an opening of the base member, the base member having a slot and a projection extending into the slot; a clip pivotally coupled to the base member, the clip having an opening coaxial with the opening of the base member, the two openings receiving the axle of the tool; and a saw having a tang received in the slot and removably held in position by the clip, the saw having an aperture disposed over the projection to align the saw. 10. The saw attachment mechanism of claim 9, wherein the clip has a second opening formed therein, the second opening receiving the projection when the clip is in the closed position. 11. The saw attachment mechanism of claim 9, wherein the base member includes one of a detent boss and a detent hole, and the clip includes the other of the detent boss and the detent hole, the detent boss and the detent hole cooperating to retain the clip in the closed position. 12. The saw attachment mechanism of claim 11, wherein the detent boss is on the clip and the detent hole is formed in the base member. e and contiguous stake-directed side surface, c) track means in lengthwise association with said stake-directed side surface and interactive with said retaining means to permit vertical sliding movement of said positioning rod, d) a scale of linear measurement indicia associated with said front surface, said scale facilitating repeat measurements of constant length, e) a rod-eye slidably associated with said front surface and adapted to receive a leveling beam from a distantly located laser transmitter and produce a visual and/or audible signal in response to receipt of said leveling beam, said signal dictating the elevational distance of said positioning rod above said horizontal foundation, and f) marking guide means associated with the bottom extremity of said positioning rod to facilitate placement of a mark upon said grade stake representing the location for tying a level string that tautly extends between sequentially contiguous stakes. 2. The apparatus of claim 1 further including a story rod slidably associated with said front surface. 3. The apparatus of claim 2 wherein said scale of linear measurement is disposed on said story rod. 4. The apparatus of claim 3 wherein said rod-eye is attached to said story rod. 5. The apparatus of claim 1 wherein said stake engaging means comprises a block containing a vertical bore which fits onto said stake. 6. The apparatus of claim 5 wherein said retaining means is a slide plate attached to said block. 7. The apparatus of claim 6 further equipped with securing means including a threaded shaft interactive between said slide plate and track means to lock the elevational position of said positioning rod. 8. The apparatus of claim 7 wherein said track means is provided with a vertical slot to permit elevational movement of said positioning rod past said threaded shaft. 9. The apparatus of claim 1 wherein said marking guide means extends laterally from said stake-directed side surface and encircles said stake.