Abstract: The present invention comprises a rigid device capable of separating whey from yogurt when inserted into yogurt. The bottom of the device and a portion of the lower sides are walled to a height great enough to create a whey collecting reservoir. An accompanying ladle which fits within the device and is at a sufficient height to allow the collection of liquid into the ladle when inserted in the device may be included as part of a sales package.

Abstract: The present invention comprises a rigid device capable of separating whey from yogurt when inserted into yogurt. The bottom of the device and a portion of the lower sides are walled to a height great enough to create a whey collecting reservoir. An accompanying ladle which fits within the device and is at a sufficient height to allow the collection of liquid into the ladle when inserted in the device may be included as part of a sales package.

Abstract: A method of protecting metals from corrosion by applying an alternating voltage to them, thereby reversing the metal's polarity with respect to its surroundings. Particular applications are for metals which are buried in soil or are exposed to an electrolyte. Amphoteric metals Steels, which are subject to hydrogen embrittlement when made cathodic, are also protected by polarity reversal.

Abstract: A method and apparatus for providing a clean working area within an enclosure while simultaneously permitting open access to the working area from outside and also preventing any toxic substances from escaping the enclosure to contaminate a worker area. A higher pressure region within the enclosure near the aperture of the enclosure prevents dirt from entering and toxic materials from escaping.

Abstract: This invention is embodied in an apparatus for assessing the effects of controlled amounts of well-characterized ionic or other particles on the reliability of electronic components. The chamber includes a high efficiency filter that purifies the input air and a recirculating system which ensures substantially laminar, constant velocity air flow, controllable humidity, and steady state conditions throughout at least a portion of the chamber. Particles are introduced into the chamber from a particle generator through a series of output ports that ensure a uniform concentration of particles throughout at least a portion of the chamber. Substantially constant conditions are achieved by constantly introducing new particles into the chamber, withdrawing a continuous flow of particle-laden air from the chamber, removing essentially all the particles from the particle-laden air withdrawn from the chamber and introducing a continuous flow of filtered air into the chamber.

Abstract: Disclosed is an apparatus which can serve to detect, count, size discriminate and analyze the chemical composition of particles in the air or process gases. In a preferred embodiment, the particles enter via a capillary into a differentially pumped chamber. A pulsed laser which is continuously fired is focused at an opening in the chamber. When the particles come into the path of the laser beam, the particles are fragmented and ionized. A dual time of flight mass spectrum is produced, recorded with an oscilloscope and analyzed with a computer. The mass spectrum information enables the determination of the chemical nature and concentration of the species of the particles, the particle size and the elemental composition of airborne particles in real time. Once these parameters are determined the source of the particles can be determined and eliminated from the environment and process. Thus, the inventive apparatus is advantageously used in conjunction with a facility, i.e.