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| Number | Title | Issue Date |
| 5239783 | Drywall sander A motorized rotary sander is provided with an efficient dust pick-up system which particularly adapts it to drywall sanding. The abrasive discs used in the system are designed to provide an improved finish on drywall and similar surfaces. The discs are qu... | 08/31/1993 |
| 5239784 | Cavitied abrading device with smooth lands area and layered grit An improved abrading device made with predetermined cavities. In this device, metal grit is magnetically positioned and then brazed on a metal surface to form a generally uniform distribution of the metal grit on the land area and not on the cavities of t... | 08/31/1993 |
| 5239785 | Method and tool for finishing of sharpened skate blades A skate blade finishing tool includes a holder adapted to be hand-held by a user. The holder includes at least one slot therein. Arranged in the slot is a strip of leather. In use, the leather strip in the slot is rubbed along the length of a sharpened sk... | 08/31/1993 |
| 5239786 | Inside pipe cleaner This relates to a pipe cleaner for cleaning pipe interiors such as gas and oil pipelines. The pipe cleaner is adjustable for cleaning pipes of different diameters beginning as low as 12" inside diameter. However, the usual requirement for gas and oil line... | 08/31/1993 |
| 5239787 | Foot control for an abrasive blast system An abrasive blasting system which utilizes a central control panel together with controls operable by the operator's feet. Dual control, at the system panel and the foot operable panel, permit the operator to adjust such parameters as the air pressure and... | 08/31/1993 |
| 5239788 | Abrasive feed system In accordance with illustrative embodiments of the present invention, a hopper containing a sodium bicarbonate abrasive is pressurized with a dry gas such as nitrogen. The abrasive is fed into a transport line through which compressed air flows toward a n... | 08/31/1993 |
| 5239789 | Vibration damping system A vibration damping system adapted for use on top of a structure, comprises: a weight disposed on the top of the structure in a manner such that it can undergo simple harmonic oscillation; an acceleration sensor provided at the structure top for detecting... | 08/31/1993 |
| 5239790 | Attic shelf A preassembled attic shelf unit includes a pair of shelf support members connected to each other with wooden connectors so that outward facing surfaces of the support units are engageable with portions of adjacent roof trusses located on fixed centers. Ea... | 08/31/1993 |
| 5239791 | Adjustable coping assembly A fully-adjustable coping assembly capable of conforming to a wide variety of parapets, walls, and other structures is disclosed. Embodiments of the assembly comprise two toothed, interconnected elements which not only telescope as necessary but, when con... | 08/31/1993 |
| 5239792 | Eavesdropping-proof room and sound dampening devices therefor An eavesdropping-proof room comprises boundary components that are substantially transparent, at least from one surface thereof, whereby any device implanted therein is immediately visible. Sound dampening devices for aerating closed rooms are also provid... | 08/31/1993 |
| 5239793 | Hinge element and deployable structures including hinge element A stowable and self-deployable array antenna includes flat, rectangular antenna panels hinged side-by-side so that when deployed they are coplanar, and they fold like an accordion for stowing. The deployed array antenna is stiffened by lateral stiffening ... | 08/31/1993 |
| 5239794 | Habitable structure with water catachment, storage and distribution A habitable structure has a ground-supported, water-impervious floor and upright foundation walls which together define an open top water enclosure. Flooring is supported on the foundation walls essentially covering the open top. Roofing is supported abov... | 08/31/1993 |
| 5239795 | Combination pull-down attic stairs and ceiling light A combination pull-down stairs and lighting assembly with the lighting assembly attached to the underside of the stairs such that, when retracted, the lighting assembly provides both cover for concealing the stairs and illumination for the space below the... | 08/31/1993 |
| 5239796 | Staircase cabinet A staircase cabinet comprises a plurality of treads each having an outer edge, an inner edge and a back surface; a pair of outer stringers both for defining opposed walls of the cabinet and supporting the outer edges of each tread; an inner stringer for s... | 08/31/1993 |
| 5239797 | Protective bridge for window sills The reinforcing bridge is intended to prevent crumbling of plaster at the lateral ledges of window sills under the influence of vibrations, wind and thermal expansions. The reinforcing bridge has a piece of elastic, plastic profile, which serves to embrac... | 08/31/1993 |
| 5239798 | External wall panel and mounting structure thereof An exterior wall panel as the basic component of a curtain wall for a multi-storied building. The wall panel includes a steel frame and fastening means for securing the frame to steel girders of a building. Mounting means to secure the wall panel to the e... | 08/31/1993 |
| 5239799 | Insulated door with synthetic resin skins A door has a pair of spaced stiles at its side edges, a top rail extending between the upper ends of the rails, and a pair of synthetic resin skins providing the faces of the door and adhesively bonded to the stiles and rail. The skins have opposed flange... | 08/31/1993 |
| 5239800 | Decorative file cabinet door A file cabinet door is disclosed whose front carries a contrasting design or pattern. Decorative openings are provided through a front panel in the door in the form of a pattern. A decorative interior panel of contrasting appearance to the front panel is ... | 08/31/1993 |
| 5239801 | Clip-on wooden drop ceiling A wooden drop ceiling system is provided which is readily attached to an existing metal T-rail system. A uniquely shaped grooved ceiling tile support is clipped on to the existing T-rail supports by means of U-shaped clips. Cross supports are then clipped... | 08/31/1993 |
| 5239802 | Adhesive arrangement for shingles and the like A shingle or other roof covering is provided, comprising a tab portion and a butt portion. The shingle surface is provided with a band zone, in which adhesive zones are applied. The band zones run the entire width of a shingle, and are preferably located ... | 08/31/1993 |
| 5239803 | Single-component-type structural system A symmetrical structural component (FIGS. 1A-1D), which when replicated can be used to create a 2- or 3-dimensional framework. Each end of the component comprises two projections 10 that serve as the primary means for multiple component coupling; two inte... | 08/31/1993 |
| 5239804 | Method for wrapping a floral grouping A material dispenser for dispensing sheets of material with an adhesive applied thereto. The material is passed through a material applicator and the material applicator includes a contact portion with adhesive in contact with a portion of the material fo... | 08/31/1993 |
| 5239805 | Method of packing a developer cartridge The object of the present invention is to provide a method of packaging a developer cartridge especially for use in the image-forming of the electrophotographic process, the method by which the operativity of users can be improved and the pollution due to... | 08/31/1993 |
| 5239806 | Thermoplastic semiconductor package and method of producing it A semiconductor package includes a lead frame with a die or chip mounted on a die pad, a base made of a thermoplastic material and having a cavity, and a lid made of thermoplastic material ultrasonically welded to the base to cover the cavity and protect ... | 08/31/1993 |
| 5239807 | Flex-pack case packer A pneumatically operated flex-pack case packer for servicing a form-fill-seal machine. The flex-pack case packer employs a two-stage displacement cylinder to move an interchangeable head assembly having grippers that, when moved into position to receive s... | 08/31/1993 |
| 5239808 | Vacuum packaging machine A vacuum packaging apparatus is provided for use in evacuating the air in an open package and sealing the evacuated package. The apparatus includes a chamber and a lid movable between an open position exposing the chamber and a closed position sealing the... | 08/31/1993 |
| 5239809 | Apparatus for feeding packages from a web of packages to a receptacle A web of variable shaped packages is pinch fed in a delivery path by an underlieing endless belt and an overlying endless belt, the latter having flexible tubes thereon which conform to the shapes of the packages. The web is thus fed to a cutting station ... | 08/31/1993 |
| 5239810 | Centrally mounted driver carrier control unit In reference to a grass cutting machine of the kind comprising a self-propelling device supported on four wheels rotatably mounted to rotate around a common axis and supporting a chassis carrying a power source and provided with rigid or adjustable rearwa... | 08/31/1993 |
| 5239811 | Anti-wrap blades for line trimmer Secondary cutting blades are mounted on a line trimmer between the hub carrying the cutting line and the shield. The cutting blades extend parallel to the axis of rotation of the hub carrying the cutting line. The blades have one end adjacent to the perip... | 08/31/1993 |
| 5239812 | Frame structure for a front mower A front mower having a grass cutting unit connectable to a front portion and a grass catcher connectable to a rear portion thereof, comprises a main frame structure extending longitudinally of a mower body. The main frame structure includes a pair of righ... | 08/31/1993 |
| 5239813 | Process and apparatus for sheathing cables formed of a plurality of conductors twisted together A cable made up of a plurality of conductors twisted together is drawn through the extrusion head of an extruder which applies a sheath of plastic or elastomeric material to the cable. From the extruder, the cable passes through a tube having a heated sec... | 08/31/1993 |
| 5239814 | Creel mechanism for a ring spinning frame provided with displaceable roving guides In a ring spinning frame provided with two parallel alignments of bobbin hangers, a plurality of roving guides is arranged in an alignment at an intermediate position between the two alignments of bobbin hangers, wherein a first group of roving guides is ... | 08/31/1993 |
| 5239815 | Sync-ring assembly for a gas turbine engine exhaust nozzle A sync-ring assembly for use on a axisymmetric gas turbine exhaust nozzle, the sync-ring having a semi-spherical outward surface received within and slidably contacting the cylindrical inner surface of a liner. The sync-ring runs along guide tracks mounte... | 08/31/1993 |
| 5239816 | Steam deflector assembly for a steam injected gas turbine engine A steam deflector assembly for a steam injected gas turbine engine having an annular manifold as a part of the combustion chamber casing. The manifold has a port through the exterior of the casing and a plurality of evenly spaced steam passage holes leadi... | 08/31/1993 |
| 5239817 | Fire zone ventilation shut-off system A fire emergency ventilation shut-off system for an aircraft having at least one fire zone, includes at least one shut-off valve having an element disposed in an inlet of the fire zone, the valve element being movable between open and closed positions and... | 08/31/1993 |
| 5239818 | Dilution pole combustor and method An annular combustor includes a plurality of circumferentially spaced, radially extending dilution poles disposed in an intermediate zone thereof between a forward combustion zone and an aft combustion zone. Adjacent ones of the dilution poles define ther... | 08/31/1993 |
| 5239819 | Sterol ice nucleation catalysts This invention provides for improved sterol nucleators of ice crystals. The improvement is the use of water stable crystalline forms of the sterols. These forms advantageously provide predictable nucleation temperatures which are stable for long periods o... | 08/31/1993 |
| 5239820 | Electric propulsion using C60 molecules Fullerene propellants, which are stable carbon cage structures composed of even numbers of carbon atoms in the range of about 32 to 200 atoms, particularly a combination of conveniently obtainable C60 and C70, may be carried in solid... | 08/31/1993 |
| 5239821 | Underwater turbojet engine A solid particle fuel is introduced into a reaction zone of a continuous w conduit between pump and turbine flow sections thereof within a turbojet engine. The fuel reacts on contact with the motive liquid within the reaction zone and produces bubbles of... | 08/31/1993 |
| 5239822 | Composite structure for thrust reverser torque box A one-piece composite material torque box for the thrust reverser assembly of a jet engine. The torque box is made up of three composite material subassemblies, a generally planar flange subassembly, a tubular torque tube subassembly, and a cap subassembl... | 08/31/1993 |
