Abstract: A tribo-electro-gas-dynamic powder coating apparatus with an obstruction-free barrel having a semi-toroidal section throat at the inner end and having an opening at the outer end. An end cap is connected to the barrel end over the semi-toroidal section to form an annular chamber circumferentially surrounding the semi-toroidal section and having a clearance between the section and the end cap leading from the chamber to the barrel bore.

Abstract: A prefabricated building unit has a framed inner stud wall to which is joined an intermediate wall of insulation board and an exterior wall of concrete, the concrete being poured on the intermediate wall and over angled, protruding nails that fasten the intermediate wall to the stud wall. A plurality of the building units are combined to complete the walls of a structure, the method of joining being to weld together reinforcing bars extending from the concrete portion of each unit and then to pour a pilaster over the joined reinforcing bar. The exterior of the concrete wall is finished during prefabrication with exposed aggregate and exterior varnish.

Abstract: A device for filling the crank case or transmission of an internal combustion engine with oil dispensed from a can opened by the device. The device comprises an outer casing, a cup member in the casing spaced from the side walls and bottom of the casing, registering openings in the cup member and casing bottoms, and a piercing and dispensing tube mounted in the cup member having a beveled piercing end facing upwardly in the cup member. Air passages are provided by the space between the cup member and casing communicating with the interior of the piercing tube. The tube is mounted in the cup member by a pin of magnetic material which has two functions: to attract ferrous matter and to separate the fluid flow momentarily, thereby allowing air passing upwardly or downwardly with the fluid, to mix with the fluid. The spacing means between the cup member and the casing may be a plurality of bars connected to the side walls of the cup member and having legs extending beyond the cup member bottom.

Abstract: A hauling vehicle with side dump body comprising stationary opposite end walls, first and second opposite sides, a bottom, and an exterior flap attached below said second side, wherein said first side and an adjacent portion of the bottom are hingedly connected to form an ejector inwardly pivotal to provide an interior ramp prompting contents of the body against said second side which is free swinging and openable in response to pressure from within the hauling body; said flap being upwardly pivotal to prevent said second side from opening in response to pressure within the body and downwardly pivotal into a ramp guiding contents exiting said second side away from the hauling body. Means activating the ejector and means activating the flap for latching and unlatching the flap are provided.

Abstract: A method of strengthening glass comprising heating the glass to a temperature between approximately 700.degree. F. and the decomposition temperature of a selected fatty acid, and applying said fatty acid to the surface of the glass. The fatty acid, in regard to the carboxyl group, employed in the disclosed process is not reacted with any other chemical; it is chemisorbed on the surface of the glass for strengthening the microcrack structure on said surface.

Abstract: A pocket mandrel wheel having mandrels mounted on mandrel arms that pivot to move the mandrels laterally to prevent the mandrels from contacting an associated printing wheel. The mandrel arms are attached to the mandrel wheel by a pivot arm that controls the radius of the mandrels line of motion as the mandrel wheel rotates. The pivot arm causes the mandrel arm to rotate the mandrel in response to an electronic system that detects improperly seated cans on the mandrels. The pivot arm rests against an interposer block having a recessed step, and the mandrel is withdrawn when the block is moved in response to a signal from the electronic system so that the pivot arm rests against the recessed portion of the block. The movement of the block is controlled by a mechanical system that moves the pivot arm away from the block prior to the time when the mandrel may be tripped.

Abstract: An air line lubricator with safety device for automatically actuating an air actuatable member located outside of the lubricator. The air actuatable member may be a valve which controls a tool, or a signal which indicates that the oil level in the lubricator bowl has fallen below a predetermined level. The lubricator bowl contains oil and pressurized air and an air tube which receives pressurized air from the bowl when the oil level is below a predetermined level. The air tube has a relatively small intake end opening and a relatively wider internal diameter. An oil level controlled member may be a float or a float controlled piston which is movable relatively to said tube opening and is supported by the oil when the oil level is above a predetermined level. The face of the oil level controlled member has mounted thereon a tiltable member for engagement by the air tube open end.

Abstract: A shaft having a pair of oppositely angled projections on one end engages the head of a one-way screw for retracting the screw by rotation of the shaft. The shaft may integrally carry a stabilizing blade provided with said projections and assist in holding them in place against the screw head while the shaft is struck with a hammer to drive the projections into the screw head. A handle may be attached to the shaft, but the end of the shaft extends through the handle to be exposed so that the shaft may be struck by the hammer.

Abstract: A multi-container package in which containers are firmly bound together as a unit by means which retain the cylindrical bodies in substantially axially parallel relationship for safe transportation and handling but permit manual separation of one container from the rest of the package without dismantling the pack. The containers of each package are bound together adjacent their tops and adjacent their bottoms, with substantial lack of relative movement between the containers, but the connecting means between rows of containers and between containers of each row are weakened in such manner that only limited movement imparted in a predetermined direction is required for separating one container from the rest.

Abstract: A self-timing yogurt maker is used in combination with a container holding a mixture of milk and yogurt starter culture at an initial temperature between 120.degree. and 145.degree. F. The yogurt maker comprises an insulated wall forming an interior cavity enclosing said container and contents, said insulated wall having thermal properties which allow said initial temperature of the container and contents to decline, at average room temperature, to approximately 90.degree. F. over a period of 9 hours. The method of making exceptionally mild, low acid yogurt comprises heating milk to temperature from 120.degree. to 145.degree. F., adding yogurt starter culture, placing the mixture in a container and capping the container, and cooling the container contents in said yogurt maker by a natural temperature decline to approximately 90.degree. F. at the end of approximately 9 hours.