Abstract: A quiet, inexpensive pump especially adapted for transporting fluid having particulate matter entrained therein comprises a one-piece housing having a chamber therein with an epitrochoidal planform satisfying the equation: x=(a+b)·cos(t)−c·cos((a/b+1)·t), and y=(a+b)·sin(t)−c·sin((a/b+1)·t), x and y being plotted from a center of said chamber, wherein 0≦t≦2&pgr;, a/b is an integer defining the number of lobes of said chamber, and b/c=2. A stator gear at the center of the chamber has (a/b)·n teeth, wherein n is an integer. A one-piece rotor, with a generally polygonal planform having a/b+1) curved sides, rotates eccentrically within the chamber. Apexes of said rotor are spaced from walls of said chamber to maintain a clearance between said apexes and said walls as said rotor rotates in said chamber, for permitting fluid flow through said clearance.

Abstract: A medical device comprises a model of a male child with a urination-simulating mechanism including a removable reservoir disposed interiorly of the model for holding a liquid and a pumping mechanism for expelling the liquid from the reservoir into a passage upon actuation of the pumping mechanism. A penis member on the model has an opening simulating the urethral opening in a human penis, and the passage is in communication with the opening. The arms of the model are movable and Velcro.RTM. fastening material on the penis member and on the hands of the model attach the hands to the penis member in a manner that illustrates how an adult male grasps his penis during urination. The model is placed in front of a toilet with the opening in the penis member pointed toward the toilet bowl and with the hands attached to the penis member, and the adult performing the demonstration actuates the pumping mechanism to expel liquid from the opening and simulate urination.

Abstract: A vacuum cleaner has a vacuum pump with a housing including a lobed chamber having an epitrochoidal planform satisfying the equationx=(a+b).multidot.cos (t)-c.multidot.cos ((a/b+1).multidot.t),andy=(a+b).multidot.sin (t)-c.multidot.sin ((a/b+1).multidot.t),where 0.ltoreq.t.ltoreq.2.pi., a/b=2 (thus defining the number of lobes in the chamber) and b/c=2. The chamber has outlet ports and inlet ports in each lobe of the chamber, and a central stator gear with 2n teeth. A triangular rotor with curved sides is disposed for eccentric rotation in the chamber such that an inlet port and outlet port in each lobe of the chamber are always in direct fluid communication during a portion of the rotor travel, which prevents excessive pressure build-up at the chamber inlet ports, and a central rotor gear with 3n teeth meshed with the stator gear.

Abstract: An axial flow hair dryer comprises a generally circular main housing with a transitional portion that smoothly reduces the housing diameter to an outlet. A first fan stage in the main housing generates an axial air flow through the housing. An outer duct has two axial extensions secured to the housing near the beginning of the transitional portion, and the housing air outlet introduces air exiting the housing into the outer duct. The housing and the outer duct form two additional ambient air intakes extending between the axial extensions in a smooth arc toward the main housing outlet. A second fan stage includes a second axial flow impeller in the outer duct for generating air flow through the ambient air intake. The second axial flow impeller includes inner and outer blades separated by an annular shroud that forms an extension of the main housing flow passage. A guide duct in the outer duct forms a further extension of the extended air flow passage, and the guide duct includes stator vanes at its outlet.

Abstract: An adjustable device for hanging a wire-supported object on a wall device comprises a first bar for attachment at to the wall in a horizontal position, a second bar perpendicular to the first bar and having a hook or hooks for accepting a wire secured to the object to be hung, and a connector with channels that hold the bars for sliding movement relative to each other. The first bar is secured to the wall at its ends and then the connector can be moved horizontally along the first bar and the second bar can be moved vertically within the connector. This permits the object to be positioned at precisely the desired position even after the hanger device is secured to the wall, unlike conventional devices that must be removed from the wall for repositioning. A spring-loaded pin on the connector is accepted into openings in the bars to lock them into the position that places the object on the desired position.

Abstract: A reversible, backlit grooming mirror has a planar mirror and a concave mirror mounted back-to-back in a reflector unit in parallel relation, with a space between the mirrors. The reflector unit is mounted for rotation in a mirror frame between a first position presenting the planar mirror to a user and a second position presenting the concave mirror to the user. A light source such as a halogen lamp is disposed in the space between the mirrors. A switch responsive to rotation of the reflector unit terminates electrical power to the lamp unless the reflector unit occupies a position in which one of the mirrors is in an operative position before the user.

Abstract: A co-ordinate matrix addressing system is used to address a liquid crystal display cell containing a positive dielectric anisotropy smectic material. For this purpose one or more direct voltage pulses are applied across selected elemental volumes of the display to convert them from a focal-conic scattering state to a homeotropically aligned state. Prior to this all elements are electrically driven into the turbulent scattering state which relaxes into the focal-conic scattering state upon removal of the driving field. The driving field may also take the form of direct voltage pulses.

Abstract: A copper phosphate water soluble glass composition. The composition of the glass may be adjusted so as to release copper at a uniform preselected rate and to produce a desired pH in the resultant solution. In one application of the glass copper may be supplied to an animal from an implant formed from a cupric oxide/phosphorus pentoxide glass which also incorporates one or more glass modifying oxides such as alkali metal oxides and alumina, to control the glass solubility. Suitable glasses comprise 5-55 mole % cupric oxide + alkali metal oxides. 45-75 mole % phosphorus pentoxide, and not more than 15 mole % alumina, where the copper oxide concentration is not less than 5 mole %.

Abstract: The present invention involves a doughnut fryer guide to guide advancing dough forms through the hot oil bath in a doughnut frying machine. The doughnut fryer guide comprises a rack that supports a plurality of guide bars that limit movement of the advancing dough forms transverse to the direction of advance when the guide bars are in an operative position. Retracting means are provided for raising and lowering the rack to move the guide bars between a retracted and an operative position. In the retracted position the guide bars do not interfere with the dough forms advancing through the oil bath.

Abstract: Liproprotein emulsion system composed of protein, edible oil and other selected food ingredients are proposed and used to replace egg yolk and other natural materials in various food products. New and improved processes are described for the preparation of lipoprotein emulsions in a liquid or dry form for use in cake; protein beverages and other food compositions. These processes include methods to improve the solubility and functional properties of the protein component. The lipoprotein system can be used alone or in combination with egg white or other heat coagulable proteins to be a complete or partial substitute for whole eggs. Examples illustrate the practice of this invention to replace egg yolk in cake, donut, muffin, custard and like products.

Abstract: A solder flux composition comprises a mixture of sarcosine and tartronic or tartaric acid dissolved in water and an aliphatic alcohol. Typically the acid-sarcosine weight ratio lies within the range 90:10 to 30:70 and the solution may contain between 5 and 20 weight percent of solids. The flux is employed for tin/lead soldering of a range of metals and alloys including copper, nickel and nickel-iron. Bidegradation of the flux is inhibited by the inclusion of lead carbonate, phenol or salicylic acid in the composition.

Abstract: A cartridge-type electric immersion heating element having an integrally contained, self-limiting thermostatic control included in its electrical circuit includes an electric resistance heating element embedded in compacted powdered insulating material partially filling a tubular metallic sheath open at one end. A preset thermostat is located within a thermostat sleeve positioned in close proximity with the sheath wall and has an end embedded in the insulating material. The thermostat is connected in series circuit with the heating element and the ends of power supply leads enter the sheath through the open end thereof. A body of potting compound, such as epoxy resin, completely fills the remainder of the sheath, seals the open end thereof and encapsulates the other end of the sleeve and the power supply lead ends whereby the sleeve and thermostat are securely held in position in the sheath.

Abstract: A singler device which includes an input position with a first and second suction means mounted along one face of a traveling suction belt, a passage, and a delivery position with first and second detector members. The second detector member operates the first or second suction means depending on the first detector member being in its non-operated or operated condition, respectively. The use of this device permits flat articles to be separated from a stack in the correct order even when they are misaligned to a certain extent.

Abstract: An input circuit of a bucket brigade circuit consists of an input transistor and an input capacitor. The input capacitor is shunting the drain-source path of the input transistor.

Abstract: In a liquid crystal cell parallel homogeneous alignment of the liquid crystal molecules is provided by rubbing a silica or silica containing film produced by firing a silica containing organic coating applied in liquid form. The alignment provided by this process can withstand firing temperatures in the range 450.degree. to 500.degree. C. normally employed for making fused glass frit perimeter seals. By incorporating titania into the film the refractive index can be matched with that of the underlying electrodes and so render them substantially invisible.

Abstract: A subcutaneous implant for supplying one or more trace elements to an animal. The implant is made from a zinc oxide based glass which is prepared in rod form, a short section of the rod being implanted under the skin of an animal. Typically the glass may contain selenium dioxide for supplying small quantities of selenium to the animal.

Abstract: The system includes a portable data entry and storage device for gathering and storing data with a containing rack for the portable data device to be attached to an inside wall of a vehicle. The portable data device and the rack have mating connectors which are automatically connected when the portable data device is inserted into the rack to supply power from the vehicle power supply system to the portable data device.

Abstract: An ion implantation process uses exclusively photoresist masks to cover a substrate except in the regions to be implanted with ions. The photoresist masks are removed after each ion implantation by plasma etching.

Abstract: A process for coating a particulate insulating material, e.g. alumina, with a uniform layer of a valve metal. The particles are exposed to a gaseous nitrogen compound, or to nitrogen gas together with hydrogen and a volatile halide of the valve metal. It is thought that nitrogen provides nucleation of the surface for subsequent metal deposition. The coated powder may be used in the fabrication of electrolytic capacitor anodes.

Abstract: Silicon semiconductor devices, e.g. integrated circuits are metallized with a silicon/aluminum alloy by exposure to silane and an aluminum alkyl vapour at an elevated temperature and reduced pressure. The process eliminates the prior hydrogen plasma treatment and subsequent annealing of conventional vacuum deposition of aluminum and provides good step and crack coverage.