Abstract: A medicament delivery device is presented having an elongated body having a longitudinal axis, a proximal end and a distal end that is provided with a distal surface. The distal surface is arranged and configured such that the elongated body of the medicament delivery device can steadily stand on the distal surface.

Abstract: A device for pre-treating and injecting a liquid specimen includes a first syringe including an open top first tube including a first hole in the bottom and protrusions, a second syringe including an open top second tube including a second hole in the bottom and an inner diameter greater than an outer diameter of the first tube, a second piston movable along an inner wall of the second tube and including a third hole and a communication channel providing fluid communication between the first hole and the third hole, and a joint portion attachable to and detachable from a top of the second tube and including an opening corresponding to a transverse cross-section of the first tube and grooves corresponding to the shape of the protrusions such that the first tube passes through the joint portion when the protrusions are matched with the grooves.

Abstract: A method for continuously monitoring and controlling the etch rates within integrated circuits of silicon nitride insulator layers and silicon nitride insulator structures in aqueous ortho-phosphoric acid (H3PO4) solutions. To practice the method of the present invention, there is first provided an etch bath chamber containing therein an aqueous ortho-phosphoric acid (H3PO4) solution. There is provided continuously from the etch bath chamber to a hydrometer cell a sample stream of the aqueous ortho-phosphoric acid (H3PO4) solution. The sample stream of the aqueous ortho-phosphoric acid (H3PO4) solution is analyzed continuously within the hydrometer cell to provide a continuous specific gravity analysis of the sample stream of the aqueous ortho-phosphoric acid (H3PO4) solution.

Abstract: A combined hydrometer for measuring the specific gravity of a radiator fluid and a battery fluid including a fluid chamber having a transparent front window, a substantially horizontal axis in the chamber, an upper battery fluid scale having readings corresponding to the specific gravity of a battery fluid and a lower calibrated scale having readings corresponding to the freezing temperature of a radiator fluid. An indicator float and a second float are mounted eccentrically in the fluid chamber for pivotal movement about the axis, the indicator float having a relatively smaller specific gravity than the second float and being mounted on the axis between the second float and the front window. The indicator float normally rests with a tip end therof facing a lowermost point on the radiator fluid scale and the second float normally rests with a tip end thereof facing a lowermost point on the battery fluid scale.

Abstract: A specific gravity tester for antifreeze solutions including a transparent tube, a bulb on one end, and a sample-collecting hose on the other end; the transparent tube being of molded plastic and defining an interior guideway with broad, flat surfaces having projecting ribs to maintain the floats in spaced relation to the surfaces, the sidewalls of the tube having flat inner surfaces defining the guideway and rounded convex exterior surfaces to provide the sidewalls of the transparent tube with a magnifying lens characteristic.