Abstract: A dental attachment assembly has an abutment member for attachment to a tooth root, implant, or adjacent tooth, and a retention member for engagement in a dental appliance. The retention and abutment members are designed for releasable snap engagement to secure the members together. A skirt projects from the upper end of the retention member and snap engages over an outer locating surface of the abutment member as the members are secured together, acting to align the retention member with the abutment members.

Abstract: A portable security housing is formed from a framework defining an interior space for enclosing items to be secured, such as vending machines. The framework has a rear wall, opposite side walls, an upper wall, and a front access opening. Opaque panels are secured over at least the side and upper walls to cover the housing, with the rear wall placed against a building wall or the like. A roll-up, sectional door is rotatably mounted at the upper end of the front access opening for movement between a rolled up, storage position above the front opening and an unrolled, downwardly extended deployed position covering and closing the front opening. The housing has floor mounting pads at its base for releasably mounting the housing on a floor or ground surface.

Abstract: The invention relates to a press-wheel assembly of the kind used with seed planting machines and which includes a press-wheel (11) formed by a pair of mating wheel halves (11′, 11″), the inner wheel half (11′) being provided with an integrally formed hub (13) which projects through a central bore formed in the outer wheel half (11″), the projecting hub portion being constructed and arranged so as to permit the fitment of a protective end cap (14) within its open outer end. The cap (14) when fitted to the hub (13) has its skirt surrounded and thereby protected by the walls of the projecting hub portion. Openings (28) in the projecting hub portion are provided to allow the insertion of a hand tool for manually removing the end cap from the wheel hub. Desirably the cap (14) is secured to the inside of the hub by means of an interference fit.

Abstract: A quick-release mounting system for a motorcycle saddlebag and a method for retrofitting a motorcycle with the system. The system includes two or more couplings with which one can retrofit a motorcycle by replacing each bolt of the original mounting system with one of the couplings. Each coupling includes a first coupling portion and a second coupling portion that can be removably coupled and uncoupled with one another in a quick-release manner.

Abstract: A fluid mixing device has an inlet passageway for connection to a primary fluid supply, an outlet passageway; and at least two separate venturi passageways each connected between the inlet and outlet passageways. Each venturi passageway has a throat portion, a first venturi inlet connected to the throat portion of the first venturi passageway and a second venturi inlet connected to the throat portion of the second venturi passageway. The first and second venturi inlets are connected to supplies of two different secondary fluids for mixing into the primary fluid, a first one of the secondary fluids being of lower viscosity than the second. The outlet passageway is spaced a predetermined distance downstream of the venturi inlets to prevent substantial backflow of the first secondary fluid mixture into the second venturi passageway prior to mixing together of the two streams in the outlet passageway.

Abstract: A release device for a tandem axle of a semi-truck is a compressible piston and cylinder, with the piston rod extending out of one end of the cylinder and biased into an extended position by a biasing mechanism such as compressed gas in the cylinder. A latch on the cylinder is releasably engageable with an indent on the piston rod to hold it in a retracted position. A hook on the cylinder engages over the handle of a manual release rod for a truck tandem axle, with an enlarged head on the end of the piston rod bearing against part of the frame adjacent the release rod with the piston rod in the latched, retracted position. Release of the latch puts biasing force on the piston rod, urging the cylinder outwardly away from the frame to pull out the release rod.

Abstract: The invention provides a process for the heat treatment of iron-based alloys, including irons and steels, such as carbon steels and low alloy steels, in a controlled oxidative environment, to modify the microstructure of the metal to obtain both improved mechanical properties and a protective surface oxide scale. In a first high-temperature treatment, a layer of wüstite (FeO) is formed on the surface of the material and austenite forms in the interior of the material. Rapid cooling follows the high temperature treatment so as to preserve the wüstite scale and to obtain at the same time an internal steel microstructure comprising martensite or bainite. In a second step of lower-temperature heat treatment, the scale is transformed so that it comprises an intermediate layer composed predominantly of wüstite (FeO), with a surface of predominantly magnetite (Fe3O4), while the mechanical properties of the material are tailored for specific applications.

Abstract: A lid support assembly for a trash bin lid rod has a plurality of rod supports engaging the lid rod and secured to the rear wall of the bin to resist bending of the lid rod. An elongate lid prop has an opening for engaging over the lid rod with a first portion of the lid prop extending away from the opening in a first direction to provide a support for the trash bin lid in a partially open position, and a second portion extending in a second direction away from the first direction to engage the rear wall of the trash bin. Rod supports are positioned on opposite sides of the lid prop to secure the lid prop in the desired position on the lid rod.

Abstract: A deburring, burnishing and polishing machine using a grinding or polishing medium rotating on an endless conveyor belt, especially for noble metals, with a service-friendly, at any time integratable collection device for the products to be polished and the polishing medium by means of a basket or a cage with holes, and with the inside of the machine being accessible at any time through a panshaped polishing trough, which on the one side is connected with the pipe frame and on the front sides exhibits a carrier profile for the storage of the conveyor rollers rotating on the backing side of the conveyor belt, whereby polishing dust or polishing solution is collected in a collection pan that can be pulled out below the polishing trough, and in the wet process the solution is transported by means of a rotating pump back into the polishing trough.

Abstract: A molar (1) shows a cusp (6), which occludes in a designated central fossa (7). The cusp (6) essentially shows even facets (8,12) of which each facet (9,11) has a coordinating central fossa (7). When biting down, there are at least two coordinating facets of the cusp and the central fossa that meet. At least one set of coordinating facets of the cusp (6) and the central fossa (7) are located outside/buccal (8,9) and/or in the back/distal (24,23) and have essentially a larger-scale surface, than the facets (12,26; 11,27) located in the slope of the opposing ridge. One of the larger facets (8; 9) preferably inclines essentially to the outside and the other one essentially to the back, while the smaller facets, preferably one (12; 11) essentially raises to the inside and the other one essentially to the front. This improves the stability of the denture and provides more space for the tongue.

Abstract: Leash apparatus providing a user the ability to conveniently secure and walk two or more animals, especially dogs, from a single leash handle, without encountering the usual frustration of impossibly intertwined leashes as the animals move about. The leash apparatus is a combination assembly of swivels to which each leash of a plurality of leashes is attached, with each leash either terminating in a loop collar for one of the animals or having further extending from its distal end, through a swivel, at least one successive leash, the most distal of which terminates in such a loop collar. The handle essentially includes a primary swivel ring of size to receive two snap-hooks of multiple leashes arranged either in “series” or in “duplex.” Incorporation of the loop collars allows use of the apparatus without needing to have a fixed collar on each of the animals, and also allows control of unruly animals by the choke function of some configurations of the loop collars described.

Abstract: Disclosed is a method and apparatus for improving airborne vehicle tracking and guidance systems by reducing boresight error induced by polarization of the RF energy impinging on the vehicle radome. The radome wall is formed with a taper which gradually increases from the base near the vehicle antenna to the tip according to a disclosed formula which accounts for frequency, incidence angle, look angle, and the dielectric constant of the radome material. This taper of the radome minimizes the crossplane boresight error component magnitude which is polarization sensitive and produces a polarization insensitive inplane boresight error component. Also disclosed is a method of electronically compensating such radomes for boresight error where the radome boresight error data accumulated during testing is digitized and processed for compensating data in the vehicle electronic system to provide compensated tracking data for the vehicle guidance system.

Abstract: An artificial capillary testing apparatus (ACTA) is provided for evaluation of gas transport/exchange properties of a fluid. A sample fluid, having a known of measured partial gas pressure, is introduced from a gas-tight dispenser into an artificial capillary of known diameter located within an exchange chamber containing a flowing exchange gas. The artificial capillary is formed from a permeable material which permits gas exchange between the interior and exterior of the capillary. After exit from the artificial capillary, the effluent fluid is collected in a gas-tight collection cell, then removed from the apparatus to a gas analyzer to measure partial gas pressure, The dispenser, exchange chamber and collection cell are all enclosed within a temperature controlled cabinet, useful in measurement of oxygen transport properties of hemoglobin in blood or blood-substitutes.

Abstract: A container having a container body, a thermic module at one end of the body, and a closure at the other end of the body initiates an internal exothermic (or, alternatively, endothermic) chemical reaction to heat its contents when auser actuates the thermic module. A plastic thermic module body is spin-welded to a plastic container body by rotating one relative to and in contact with the other. The container body has multiple layers, including an inner layer such as a so-called oxygen barrier layer that inhibits oxidation and spoilage of the contents, and spin-welding the container body to the module body seals the otherwise-exposed oxygen barrier layer against air or moisture intrusion. The container includes a rotatable cover adhered to the container end over the closure with heat-sensitive adhesive that prevents a user from accessing the contents until a certain temperature is reached.

Abstract: A process for filling containers simultaneously with their sterilization, including also the evacuation of the aeriform content of the containers that is exhausted directly to the outside without flowing back in the general tank containing the filling process fluids.

Abstract: A foldable exercise bench is pivotally mounted on a stationary frame; for movement between a retracted, generally upright storage position and at least one deployed position for supporting a person during exercise. A support foot located adjacent one end of the bench is pivotally mounted for rotation between a first, storage position extending generally alongside the bench when the bench is in the upright, storage position, and a second, support position in which the support foot extends forwardly at an angle to the bench and engages the floor to support the bench in the deployed position. A pivotal linkage between the support foot and frame automatically pivots the support foot from the second position to the first, storage position when the bench is moved into the upright, storage position.