Abstract: A heat exchanging apparatus includes a composite structure of a ferrosoferric oxide and a molybdenum oxide at the internal surface of a heat exchange cycle tube located in a generator. A process of suppressing corrosion of this heat exchanging apparatus includes the step of preparing an ammonia solution including dissolved oxygen of a concentration of approximately 3-8 ppm. Approximately 1 wt %-5 wt % molybdate is added into the ammonia solution. This ammonia solution is sealed within the heat exchange cycle tube to be heated to at least a predetermined temperature in the generator of the heat exchanging apparatus. Thus, a composite structure of a ferrosoferric oxide and molybdenum oxide is formed on the internal surface of the generator. This composite structure allows the suppression of corrosion in the internal surface of the generator.
Abstract: A method for performing chemical warfare and similar cleanup activities and apparatus enabling the performance of such activity in high-temperature environments while maintaining safe and worker comfortable body temperatures. The disclosed method and apparatus rely on alternate periods of work and rest with the rest periods being additionally used for worker body temperature regulation such as cooldown. A portable temperature regulated liquid source is provided. Avoidance of worker encumbrance by personally-borne apparatus and the maintenance of non-tethered independent condition during work portions of the operating cycle provide advantages over the most closely related prior methods and apparatus. Human subject test results are also included.
July 2, 1990
Date of Patent:
November 15, 1994
The United States of America as represented by the Secretary of the Air Force
Abstract: A single pass refrigerant recovery device recovers refrigerant from a refrigeration system. The device includes at least one hose for withdrawing refrigerant from the refrigeration system and a first oil separator disposed downstream of the refrigerant hose. A filter is disposed downstream from the oil separator and a compressor is disposed downstream from the filter. A second oil separator is disposed downstream from the compressor, and the condenser is disposed downstream from the second oil separator. A moisture indicator is disposed downstream from the condenser, and a storage tank is disposed downstream from the moisture indicator. The refrigerant recovery device also contains an oil return line having a first end disposed downstream from the second oil separator, and a second end disposed upstream from the compressor. A solenoid valve in the oil return line controls the flow of material in the oil return line.
Abstract: The basic apparatus of the invention is a triple effect absorption cycle apparatus, comprising first, second and third generators each containing an aqueous absorption fluid and operating at successively higher temperatures; first, second and third condensers operating at successively higher temperatures, and operatively communicating with the generators; first heat exchange means cooperating between the third condenser and second generator, and between the second condenser and first generator, for directing energy therebetween; one, two or three absorbers and one, two or three fluid loops for directing aqueous absorption fluid between absorbers and second heat exchange means for exchanging energy between aqueous absorption fluid flows in said loops; and one, two or three evaporators operatively communicating with the absorbers.
Abstract: histological tissue freezing process is provided. The process includes spraying a chemical, tetrafluoroethane, onto a portion of a histological tissue specimen before sectioning thereof. The use of tetrafluoroethane has the advantages of not causing ozone depletion, reduced global warming potential and producing a colder spray. A spray can for spraying the chemical is also provided.
October 18, 1991
Date of Patent:
March 1, 1994
John H. Cornwell, Daniel E. Behler, Jr.
Abstract: A reflector includes multiple segments that can be interconnected by a flexible extrusion and connected to a top collar to form a reflective shell around a light source. The segments are corrugated for increased strength, the corrugations forming elongate facets characterized by reflective surfaces that reflect light laterally beside the light source as well as downwardly from the light source to minimize light reflected back toward the light source and maximize the service life of the light source. The corrugations add strength and stability to the segments permitting the sheet thickness, overall reflector weight, and cost to be minimized. The segments are preferably formed from a stamped aluminum sheet of about 0.020 inch thickness, and can be pre-or-post anodized to form the reflective surfaces, the pre-anodized surfaces being protected by a polycoat during stamping.
Abstract: The capacity control range of an interior unit of a multiple type absorption air conditioning system is increased, and turning on and off of cooling/heating and switch over between the cooling and heating can be readily and safely performed. The capacity control range is increased by reserving a liquid refrigerant in an absorption cool/warm water unit. An interior unit is connected to the absorption cool/warm water unit by a communication device. The operation of the cool/warm water unit caused by turning on and off the system and switch over between cooling and heating are automatically controlled by an operation control device. Consequently, the operation is simplified, and safety is improved.
Abstract: A surgical-type glove and illuminator assembly particularly adapted for use by health care professionals when examining or operating upon an anatomical part of a patient. A spotlighting illuminator is securely mounted on the fingers portion of the glove and oriented to project a light beam distally of the glove toward the work surface when the glove is in use. The illuminator may have a self-contained light source, or utilize fiber optic-transmitted light from a light source remote from the glove.
Abstract: Disclosed is a multi-airconditioner including a plurality of outdoor units and at least one indoor units in which refrigerant conduits connecting the outdoor units and the at least one indoor units are united in the form of two or three conduits. In the case of the multi-airconditioner for effecting either room-cooling or room-heating, each of the outdoor units and each of the indoor units have a liquefied refrigerant conduit and a gasified refrigerant conduit, which are connected with a single common liquefied refrigerant conduit and a single common gasified refrigerant conduit, respectively.
Abstract: A cooling stand for preconditioning a cooling probe containing a refrigerant that includes a well in which the probe is removably mounted against a heat transfer interface and a heat pump in the stand for removing energy from a thermal storage material to pre-cool the probe prior to use. In one embodiment of the invention, a cold reservoir containing a phase change material is mounted in the stand which acts as a heat sink for the heat pump. The heat pump is reversed when the probe is removed to cool the reservoir.
Abstract: A thermoelectric semiconductor element is disclosed which is particularly low in toxicity and inexpensive. The element is mainly composed of a complex oxide comprising strontium and titanium. An oxide semiconductor possessing oxygen deficiency is used as the n-type element. According to the invention, as compared with a thermoelectric semiconductor element for thermoelectric cooling using a conventional Bi-Te thermoelectric semiconductor which is particularly toxic due to addition of Se or the like, the toxicity of the n-type semiconductor element part is lowered, and a thermoelectric semiconductor element excellent in performance is obtained.
September 11, 1992
Date of Patent:
January 4, 1994
Matsushita Electric Industrial Co., Ltd.
Abstract: A heat pump system (10, 210) includes a power section (11, 211) having a generator (15, 215) for converting a first working fluid from a liquid to a relatively high pressure gas, a power unit (25, 222) providing energy by the conversion of the relatively high pressure gas to relatively low pressure gas to power a drive piston (27, 228') for intermittently delivering a power stroke, a power section condenser (51, 251) converting the first working fluid from relatively low pressure gas to the liquid, a compressor section (12, 212) intermittently driven by the drive piston, the compressor section having a compressor (75, 275) converting relatively low pressure gas second working fluid to relatively high pressure gas second working fluid for circulating the second working fluid through a compressor section condenser (108, 308) and a compressor section evaporator (115, 315) to effect heating and cooling operations.
Abstract: A light sculpture device, and more specifically, an article of furniture which displays light patterns, includes a box-like enclosure mounted on a hollow base. The enclosure includes a plurality of planar mirrored panels joined together at right angles to form a substantially rectangular structure in such that the reflective surfaces are directed interiorly of the enclosure. At least one of the planar mirrored panels is translucent to permit an observer to view inside of the enclosure. A plurality of lights are secured to the hollow base which emit light within the enclosure. The light pattern is produced by the light source along with the reflections of the light source produced on the reflective surfaces. This light pattern is viewed through the translucent planar mirrored panel. The light source can be but is not limited to a plurality of incandescent sources, low voltage sources, light emitting diodes, or even a visual display.
Abstract: A glass globe for the purpose of preventing insects from blocking out the source of light in a portable lantern has two prearranged doors. The doors cover approximately 30 to 40% of the surface area of the globe and are made of a fire resistant material with a light reflective surface. The doors open back to back from the same hinge area and are biased by springs circumscribing their hinge rod assemblies. The doors, when open, prevent the wind from blowing out the lantern flame and yet permit bugs and insects to enter to the inside area of the glass globe whereby they become burned and liquidated. The doors are mounted within a fire proof frame and made of a polished metal material so as to give light reflection and reduce the light loss from the light source. The glass globe is made of various sizes to replace the various size globes in the conventional commercial portable lanterns. The doors are mounted on a hinge rod and biased by helical springs circumscribing the rod.
Abstract: A removable mirror device for motor vehicle interior has a fixed outer frame, a removable mirror unit snugly housed in the fixed outer frame, electric illumination element provided in the mirror unit, dry cells located in the mirror unit, and a switching element operative for supplying the electric illuminating element of the mirror unit either from the drive cells located in the mirror unit from a battery of a motor vehicle.
Abstract: A method of charging a hydrostatic transmission with deaerated transmission oil wherein a hollow-bodied bellows attached to a housing plate for placement within the hydrostatic transmission housing, and a bleed plug for a bleed hole are removed, and the deaerated oil is caused to fill the transmission housing. Once the transmission has been completely charged such that the oil is at the bleed hole level, the hollow-bodied bellows attached to the housing plate is then secured to the hydrostatic transmission housing causing excess oil and air initially trapped within the hydrostatic transmission housing, to be purged through the bleed hole, while the transmission bleed hole plug is then secured into the transmission bleed hole.
Abstract: A fluorescent lamp cover molded as a unitary hollow structure made of light-transparent synthetic acrylic resin having an opening for receiving the fluorescent lamp in the interior of the cover. A prismatic diffuser plate of the lamp cover has an interior flat major side surface and on an opposite side surface of the plate an exterior major side surface having a pattern of adjacent pyramidal projections having flat sides through which the illumination light energy from the fluorescent lamp incident on the interior flat major side surface passes outwardly of the cover. The pyramidal projections are of two types and each have an apex which defines the outermost exterior point of the corresponding pyramidal projection.
Abstract: Intermittent sorption cycles with fixed heat supply and removal and comprised of a generator/absorber (4), a condenser (2), and a receiver/evaporator (10) are adapted and simplified so as to require at most only two control valves (8) and (15) for their operation. With an integral thermosyphon (6) for absorption heat removal, only a single refrigerant charge is necessary. The two valves are advantageously combined into a single three-way ball valve, and key gravity drains (14) and (17) are provided. Applications include hot water heating, solar refrigeration, and steam generation.
Abstract: A drinking mug or tumbler-like device self equipped to rapidly transform its contents into a congealed, or very low temperature liquid condition comprising an inner container enclosed within a larger outer container that is filled with a water based refrigerant in the space therebetween, and hermetically sealed with a special seal gasket arrangement. In preparation for use, the device in placed in a refrigerator freezer until the refrigerant is solidified. The contents are then poured into the container and cooled as heat is absorbed by the refrigerant through the walls of the inner container. The specially proportioned inner container aids transfer of heat energy to speed cooling of the contents, along with a fabric which aids in the distribution of thermal energy throughout the refrigerant, and also controls the degree of congealment within the beverage, and refrigerant.
Abstract: A portable lighting unit comprising a three wheeled transportation vehicle having a low slung bed frame mounted over two axially aligned wheels while a third wheel thereof is pivotally mounted at one end of the vehicle frame and is steerable in response to movements of a pulling tongue. Plural high intensity flood lamps are mounted in parallel horizontal banks atop two elongated light bars which in turn are pivotally carried on top of vertically adjustable telescopic masts for pivoting the lamps. Additionally portable flood lights are detachably mounted on the light bars for hand held mobile spot light operation or selective positioning remotely of the vehicle on ground engaging stands. A heavy duty battery powers the lamps and flood lights over switch controlled circuits available via insulated cables and a distribution panel.