초록 ▼

A liquid heating device particularly adapted to the heating of sealed bottles containing liquids which are maintained in sterile condition until used, such as dialysates and the like. The device employs sealed bottles having a temperature sensitive element in intimate contact with the liquid being h

A liquid heating device particularly adapted to the heating of sealed bottles containing liquids which are maintained in sterile condition until used, such as dialysates and the like. The device employs sealed bottles having a temperature sensitive element in intimate contact with the liquid being heated, which changes to a predetermined color and hue as the desired temperature is obtained. This color is compared with a color standard using a single source of light which is reflected against the indicator and the standard. The light reflected from these elements is photoelectrically compared, and the operation of the heating element is interrupted when a match is made. An independent timer interrupts said operation in the event of a failure of the photoelectric comparison.

대표청구항 ▼

As a new article of manufacture, a transparent bottle for containing surgical dialysate and similar fluids comprising: a main body defining a cavity for the holding of said fluid, a neck portion communicating with said cavity, a stopper selectively engageable within said necked portion, an air inlet

As a new article of manufacture, a transparent bottle for containing surgical dialysate and similar fluids comprising: a main body defining a cavity for the holding of said fluid, a neck portion communicating with said cavity, a stopper selectively engageable within said necked portion, an air inlet tube supported by said stopper, a hollow transparent sleeve carried by a segment of said air inlet tube, and a color variable temperature sensitive means including a quantity of temperature sensitive liquid crystals carried by said sleeve and visible through said body.