Abstract: A luggage container which conveniently converts for use as wheeled suitcase, a backpack and a hand-carry bag having a first and second compartment for storage of belongings. A pair of wheels are rotatably mounted to an axle which is at an edge along the bottom of the first compartment. A pair of shoulder straps are provided in the second compartment and are concealed by a cover. When the container is used as a backpack, the cover is opened to reveal the shoulder straps. The cover is wrapped over the wheels and secured to the bottom side of the first compartment. In this manner the traveler and the traveler's belongings are protected when cartage is on the traveler's back from filth that accumulates on the wheels.

Abstract: An automatic emergency alarm reception apparatus for a broadcasting receiver which has a radio frequency part and a low frequency part, comprising an ON/OFF switch connected between the radio frequency part and the low frequency part, for turning on the broadcasting receiver when a specific frequency signal indicative of a state of emergency is received at an antenna of the broadcasting receiver, and an emergency alarm signal detection circuit for detecting the specific frequency signal from the radio frequency part to control the ON/OFF switch. The emergency alarm signal detection circuit includes an air defense alarm signal detection part and an air-raid alarm signal detection part. The air defense alarm signal detection part is provided with a band pass filter, a level comparator, an inverter, a pulse generator and a counter. The air-raid alarm signal detection part is provided with first to third band pass filters, first to third level comparators and a sequential detector.

Abstract: A composite double-wall underground tank comprises an internal rotatable metal mandrel tank frame structure surmounted by two individual concentric corrugated cylindrical nonmetallic pressure vessels having hemispherical ends. The metal tank frame structure provides the buckling resistance and compression strength to resist soil loads when the tank is buried. The pressure vessels are made of identical materials and include an internal primary container enclosed by an external secondary container of equal tensile strength and corrosion-resistance. The composite double-wall underground tank is a substantial improvement over conventional steel and fiberglass tanks, and provides a more reliable method of protecting the environment by preventing the release of contaminating hazardous liquids stored in the tank. Each of the two pressure vessels is made from a multiple ply composite laminate having a unique arrangement of fabrics containing filament reinforcements impregnated with a thermosetting polymeric matrix.

Abstract: A headboard support bracket is disclosed that, when used with independent legs on a box springs, can eliminate the need for a metal frame for support of the headboard associated with the box springs. Further, the use of the bracket eliminates the need for affixing the headboard to the wall of the room, thereby precluding relocation of the bed without removal of the headboard from the wall. The headboard support bracket is symmetrical so that it can be used on either corner of the box springs without the need to resort to "right" and "left" were the bracket asymmetrical. The bracket includes indicia means for positioning the headboard support bracket properly on the box springs.

Abstract: A novel rack for holding test tubes, elongated objects and the like in an upright position. The rack is formed in a one-piece construction having upper and intermediate panels, both panels having holes which are aligned with one another to receive tubes passing through both panels. The holes securely retain the tubes upright and separate from each other during shipping and dispensing by means of easily deformable holes having integral slits radiating from each hole. The carton is lightweight, collapsible and can be easily scored and recycled.

Abstract: A refrigerator door assembly is mounted on a stationary frame of a refrigeration unit and comprises a door frame integrally molded about a thermo-pane in sealing relationship therewith. The door frame is hingedly mounted on the stationary frame of the refrigeration unit by a pair of upper and lower hinge pins. A torsion bar, integrally molded within the door frame and secured to one of the hinge pins, functions to constantly apply a closing force on the door frame to move the door assembly into sealing contact with the stationary frame of the refrigeration unit.

Abstract: A bed support for use with box springs is disclosed which consists of a plate member for fixture to a box springs and a leg. The plate member has a relatively large threaded bore through the center to threadably receive a threaded leg portion extending downwardly from the plate member. The leg portion includes an enlarged foot having a smooth bottom.

Abstract: A retainer and hanger for lens containing devices, particularly eyeglasses, which enables eased adjustment of the vertical position of the device when suspended around the neck from a chest level position to an unobtrusive, elevated position.

Abstract: A retainer and hanger for lens containing devices, particularly eyeglasses, which enables eased adjustment of the vertical position of the device when suspended around the neck from a chest level position to an unobtrusive, elevated position.

Abstract: This invention relates to a machine to ensure that the amount of food product in a can meets the volume and weight standards without altering the natural characteristics of the product necessary for the market. The invention encompasses a combination of scrapers or sweepers and a primary pocket turret assembly and including a rotating cylinder body having sweeper blades positioned thereon in a helical form so the amount of food product in associated cavities in the rotating table meets weight, volume, and product appearance standards. In addition, pneumatic cylinders and cam-driven cylinders from below compress the product in the device prior to the final leveling accomplished by the rotating helical sweepers.

Abstract: A process to add carbon dioxide under low shear conditions to an already formed food to produce a semi-solid or solid carbonated food. The carbonated semi-solid or solid spoonable food has the following properties:(a) a viscosity of between about 2000 and 200,000 centipoise at between about 1.5.degree. and 25.degree. C., and(b) a carbonation level of between about 0.5 and 4.0 volumes of carbon dioxide per volume of food. The process includes contacting the formed food with carbon dioxide gas with low shear agitation.

Abstract: A pipette tip rack loader is disclosed that will load a flat of pipette tips into a rack for use on a laboratory bench. The flat for the pipette tips is substantially the same dimensions as the top surface of the tip rack to be loaded, and has an identical hole pattern so that the ends of the tips loaded in the flat can be positioned one-to-one in the holes of the tip rack. The loader consists of an upper platform that holds the flat and a lower platform or base that holds the unloaded tip rack. The upper platform is biased in a first position sufficiently high enough above the tip rack that the tips do not hit the rack. The upper platform can be depressed so that the tips in the flat thread into the tip rack holes. As the upper platform nears the tip rack, the flat is released from the upper platform to rest on the tip rack with the tips registered in the rack. Several flats with tips may be positioned in the loader with tips in the upper flats.

Abstract: An acoustic reflector is disclosed, which is formed from the surface generated by an ellipse rotated about 180.degree. about a line passing through one of the focal points of the ellipse, where this line of rotation intersects the major axis at an acute angle. A transducer placed at the focal point on the line of revolution will, when energized, generate waves that will be reflected from the surface back through the arc of second focal points of the generating ellipse.

Abstract: A vacuum tumble mixer is provided with a hollow drive shaft at one end thereof. The hollow drive shaft provides access by means of a probe to the cylindrical center section of the vacuum tumble mixer in order to inject the ingredients to be mixed, to introduce cooling material such as liquid nitrogen or carbon dioxide, and finally to permit cleaning fluids to be circulated about the interior of the tumbler while the tumbler is rotating. The use of the hollow shaft greatly improves the efficiency and operation of the tumbler for vacuum massaging and tumble chilling of meat, poultry, seafood and other products that are mixed at the commercial level.

Abstract: The present invention relates to a group of organic chelators whose affinity for calcium ion in solution is decreased by electromagnetic radiation. Specifically, the chelators are related to fura-2 and utilize the addition of an azide group to the 3-position of the benzofuron ring of a fura-2 type structure. Photolysis of the azide group causes the calcium ion affinity to decrease 100 to 1000 fold. These chelators when incorporated into rat fibroblasts either by microinjection or by incubation as the membrane-permeable, enzymatically-labile esters and flash-photolyzed cause large increases in intracellular free calcium ion. These chelators are used to generate controlled fast elevation of intracellular free calcium ion concentration to mimic or modulate a number of important cellular responses, especially in nerve or muscle.

Abstract: A composite double-wall underground tank comprises an internal rotatable metal mandrel tank frame structure surmounted by two individual concentric corrugated cylindrical nonmetallic pressure vessels having hemispherical ends. The metal tank frame structure provides the buckling resistance and compression strength to resist soil loads when the tank is buried. The pressure vessels are made of identical materials and include an internal primary container enclosed by an external secondary container of equal tensile strength and corrosion-resistance. The composite double-wall underground tank is a substantial improvement over conventional steel and fiberglass tanks, and provides a more reliable method of protecting the environment by preventing the release of contaminating hazardous liquids stored in the tank. Each of the two pressure vessels is made from a multiple ply composite laminate having a unique arrangement of fabrics containing filament reinforcements impregnated with a thermosetting polymeric matrix.