Abstract: A process for removing sulfur from coal comprising the steps of forming a slurry of coal, a carrier liquid, and a compound selected from the group consisting of carboxylic acid, percarboxylic acid, salts of carboxylic acid, and salts of percarboxylic acid, and any combination thereof.

Abstract: A hair curler including a hollow, cylindrical housing formed of a first and second semi-cylindrical sections hinged together along one of their longitudinal edges. The free longitudinal edge of the first semi-cylindrical section is formed with a thin resilient lip. The second semi-cylindrical section includes two circular end walls. When the two semi-cylindrical sections are closed in registered concavely facing relationship the lip along the free edge of the first semi-cylindrical section overlaps and exerts a force radially toward the free edge of the second semi-cylindrical section, and the opposite ends of the first semi-cylindrical section sealingly abuts the interior surface of the circular end walls of the second semi-cylindrical section. The semi-cylindrical sections are maintained in the closed position by a latch device. Each end wall is formed with a radially extending channel open to the perimeter of the end wall, and open to the exterior surface of the end wall.

Abstract: A process and method and composition for coating coal particles including mixing at least two molar equivalents of a fatty acid or fatty ester and at least one molar equivalent of alkali reactive with the fatty acid allowing the alkali to saponify a portion of the fatty material to form a soap mixture diluting the soap mixture to a selected viscosity, applying the resulting solution to the coal particles, and allowing the solution to dry on the coal to form a coating on the coal particles.

Abstract: A golf putting practice range apparatus includes a shooting area, a putting surface and a golf ball target hole at the down-range end of the putting surface. The golfer stands on the shooting area and hits a ball over the putting surface in an attempt to sink the golf ball into the target hole. The target hole is adapted to be selectively moved to present different target locations. Further, the putting surface is adapted to provide for selectively changing its contour. The practice range also includes a ball return system which returns golf balls back to the shooting area for reuse. In one embodiment the golf ball target hole is selectively movable linearly transversely of the longitudinal axis of the putting surface. In another embodiment, the putting surface includes a plurality of planar panels hinged together at their edge-to-edge interface.

Abstract: A break-away fence rail and support post for a horse race track fence is constructed to give way when impacted with a predetermined force so as to provide a yieldable barrier upon impact by a horse or jockey. Further, a fence for a race track constructed to provide a smooth non-abrasive surface without projections or discontinuities.

Abstract: A method for surface treating a continuous flow of workpieces includes the steps of fluidizing a stationary bed of surface treating media, aggitating the fluidized bed of surface treating to create a scrubbing action to the surface treating media, and moving the workpieces to be treated through the stationary, fluidized aggitated media bed subjecting the workpieces to the scrubbing action of the media. Further, an apparatus for surface treating workpieces which includes a trough for containing a bed or pool of surface treating media, a force vibration generating device for imparting a reciprocating force, having at least a vertical force vector, to the trough and, therefore, to the surface treating media contained in the trough, and a means of conveying the workpieces to be treated continuously through the trough and, therefore, through the media.

Abstract: A method and system for reclaiming coal by separating useable coal from refuse includes a pre-conditioning stage wherein a raw feed stock of coal and refuse is mixed with a liquid medium, and a separation stage wherein the pre-conditioned feed stock is processed to separate useable coal from the refuse. In the pre-conditioning stage, the raw feed stock is used to prepare a slurried medium containing particulate material of a predetermined particulate size and of a pre-selected specific gravity. In the washing stage, the slurried medium is separated into two separated slurries, one being of lesser specific gravity than the slurried medium and the other being of greater specific gravity than the slurried medium. Usable coal is separated from the slurry of lesser specific gravity and refuse is separated from the slurry of greater specific gravity. The effluent from the slurries of lesser and greater specific gravities is collected for use in preparing the slurried medium in the pre-conditioning stage.

Abstract: A portable refrigerated unit for a beverage container such as, for example a soft drink can or bottle includes an outer case having two hinged together the mating halves. A refrigerant pack consists of two separate refrigerant cartridges each formed with a container receiving cavity which are removably installed in mating halves of the outer case. When a beverage container is installed in the cavities of the cartridges and the case is closed, the cavities of the refrigerant cartridges cooperate to completely encompass the beverage container. The refrigerant cartridges are formed with finger insets at appropriate locations at the perimeter of the container receiving cavities to aid in removing the cartridges from the outer case halves.

Abstract: A liquid applicator includes a generally cylindrical container having an open neck end. A flexible bag adapted to hold a liquid to be applied is disposed within the container with the open mouth of the bag located within the open neck of the container. A valve assembly is situated in the open neck of the container to control the flow of liquid from the bag through the open container neck. A dauber tip of porous material is located at the exterior of the open container neck for receiving liquid flowing through the valve assembly and applying the liquid to an object.

Abstract: A shield device particularly useful in conjunction with a medicine containing vial or ampule to prevent medicine from spraying out of the vial as a hypodermic needle is extracted from the vial seal. The shield device includes a enclosure having a collapsable wall structure. One end of the shield device is formed with an opening for receiving the neck of the vial and sealing around the vial neck. The other end of the shield device from the vial neck receiving opening is formed with an aperture which is covered by a puncturable seal similar to the seal covering the opening into the vial neck. In use, the vial neck is inserted through the opening into the shield. Maintaining the shield device in the collapsed position with the shield seal in overlaying alignment with the vial seal, the needle of a hypodermic syringe is inserted through the shield seal and the vial seal, and into the vial for filling the vial with medicament or extracting medicament from the vial.

Abstract: A variable power control device for varying the operating duty cycle to an electrical load such as an electrical heating unit, for example, an electrical cooking range, heating pad and the like. The control device can be used to adjust the on time of the electrical load or the temperature of the electrical load. The control device includes a cycling cam which rotates at a constant velocity, and a rotatable movable adjustment cam. A cycling electrical contact switch is located with one contact thereof disposed to follow the contour of the cycling cam and the other contact thereof disposed to follow the contour of the adjustment cam. An on-off of electrical contact switch is associated with an on-off cam with one contact disposed to follow the contour of the on-off cam and the other contact being stationary.

Abstract: A drawing toy having a housing and a web of material upon which a child can draw, color or mark. The housing includes a generally cylindrically shaped shell formed of two generally semi-cylindrical halfs. A hollow spindle having the web of material wound thereon it is located in the shell in substantial coaxial relationship with one end of the spindle projecting from one end of the cylindrical shell. A cap is removably attached to the projecting end of the spindle so that as the cap is turned, the spindle is caused to rotate about the longitudinal axes of the shell to unwind the web from or rewind the web on the spindle. A slot is formed in the shell through which the web of material moves as the web is unwound and re-wound on the spindle.

Abstract: A safety closure and container which is childproof, but can be readily opened by an adult. The container has a cylindrical neck defining the opening into the container. Threads are formed in the container neck and at least one locking lug projects from the container neck below the threaded portion. The closure has an internally threaded cylindrical flange adapted to be threaded on the container neck, and a second cylindrical flange having a larger diameter than the threaded flange. At least one resiliently mounted lug engagement finger projects inwardly from the second cylindrical flange and is adapted to abut the locking lug when the closure is in place over the container neck to prevent the unthreading of the closure from the neck. A lever associated with the resiliently mounted finger is depressed to displace the finger out of abutment with the locking lug thereby allowing the closure to be unthreaded from the container neck.

Abstract: A filter material charging apparatus for adding a gas treating material into gas treating cells contained in a filter housing includes an open bottomed gas treating material conveying channel and air evacuation conduits located in the filter housing over the gas treating cells. Air-borne filter material is delivered to the conveying channel from a source outside the filter housing. Baffles are located in the channel to distribute gas treating material over the length and breadth of the filter housing, and into the gas treating cells as the gas treating material exits the channel through its open bottom. The air which carried the filter material into the housing is evacuated from the interior of the filter housing by the air evacuating conduit.

Abstract: A filtering device for removing particulate matter from a gas stream includes a housing with its interior divided by a horizontal partition into an upper plenum chamber and a lower plenum chamber. Planar panel filters arranged in V-shaped banks are suspended from the horizontal partition in the lower plenum chamber. These banks of panel filters coact with the horizontal partition to form a cleaned gas compartment. The housing also has a dirty gas stream inlet to the lower plenum chamber and a clean gas outlet from the upper plenum chamber. A first venturi is located at the horizontal partition and provides a passage for a gas between the cleaned gas compartment and upper plenum chamber, and a second smaller converging nozzle located in the upper plenum chamber coaxially aligned with and spaced from the first venturi. A high energy cleaning gas emitting nozzle is spaced above the second venturi and aligned to direct a jet of high energy cleaning gas axially into the second converging nozzle.

Abstract: A gas filter comprising a square frame and an interchangeable filter package containing a filter web of a folded zig-zag configuration forming a plurality of proximate filter pockets received on a support grid mounted on the frame and having a shape complementary to the folds of the filter web.

Abstract: A clamping device for removably clamping a unit filter cell in position in a gas flow-through housing against a stationary gas flow-through frame structure includes a filter cell support tray selectively movable toward and away from the gas flow-through frame structure, thus, moving a unit filter cell supported on the tray into and out of contact, respectively, with the flow-through frame structure. The tray is moved through a plurality of pivotable levers which are each pivotably attached at one end to a stationary support and connected between its ends to the filter cell support tray. The levers are caused to pivot by means of bars which are connected to the other ends of the lever and are themselves mounted for selective linear movement along their longitudinal axes. Biasing means structurally associated with the pivotable levers cause a uniform clamping force to be applied by the filter support tray forcing the unit filter cell against the stationary support frame.

Abstract: A gas separation device has peripheral flow-through frame with a sheet of gas separation filter media disposed across the frame and attached to the frame for filtering a gas stream passing through the filter media. As an aid in installing and removing the gas separation device from an installation, one advantageous embodiment has a handle centrally disposed of and attached to the filter media and projecting from one face of the filter media while another advantageous embodiment has two handles centrally disposed of and attached to the filter media and projecting from opposite faces of the filter media.

Abstract: A gas separation device has a peripheral flow-through frame with a sheet of gas separation filter media disposed across the frame and attached to the frame for filtering a gas stream passing through the filter media. As an aid in installing and removing the gas separation device from an installation, one advantageous embodiment has a handle centrally disposed of and attached to the filter media and projecting from one face of the filter media while another advantageous embodiment has two handles centrally disposed of and attached to the filter media and projecting from opposite faces of the filter media.

Abstract: A latch assembly for removably clamping a unit filter cell in position against a flow-through frame structure includes a shaft spaced from the flow-through frame structure and mounted for rotational movement about its longitudinal axis and for movement transverse to its longitudinal axis toward and away from the flow-through filter frame. The shaft also includes filter cell contacting elements. The shaft is also biased toward the flow-through frame structure. A unit filter cell is disposed between the shaft and flow-through frame structure and is held in place against the frame structure upon rotation of the biased shaft which brings the filter cell contacting elements into contact with the unit filter cell.