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| Number | Title | Issue Date |
| 5690330 | Toy basketball game with self-jumping player A toy basketball game having a court floor, a stand attached to the floor for a backboard ring and net, an articulated player and a movable base for the player. The player contains a compressible spring in one leg which is held compressed by a lever on th... | 11/25/1997 |
| 5518371 | Automatic fluid pressure maintaining system from a well A fluid pressure system comprising an electric motor-driven pump for maintaining a predetermined pressure range in a system, including a remote solid-state encapsulated triac motor control circuit having a micro pressure sensor switch in the outlet duct f... | 05/21/1996 |
| 5393192 | Underfloor extendible ramp for vehicles The disclosure comprises a tray mountable under the floor of a vehicle, which tray contains an extendible ramp mechanism. This mechanism comprises a ramp and a driving panel for the ramp. The ramp is fulcrummed intermediate its ends on the outer ends of p... | 02/28/1995 |
| 5333387 | Color drawing toy Disclosure concerns a portable drawing toy comprising an openable rectangular box having manual rotatable knobs in the two lower opposite corners, which knobs move by strings and pulleys a horizontal and a vertical bar orthogonally with respect to each ot... | 08/02/1994 |
| 5322571 | Method and apparatus for cleaning hoses An improved method and apparatus for cleaning liquid-carrying hoses, and the like. A suitable cleaning solvent is passed under pressure through the hose. The pressure of the solvent delivered to the hose is measured and used to control the pressure of com... | 06/21/1994 |
| 5318231 | Rotary shredding cutters The disclosure concerns a peripherally-toothed cutting wheel for parallel series of intermeshed cutting wheels, such as employed for the shredding of tires. Each cutting wheel comprises three congruent disks axially bolted together in which the two outer ... | 06/07/1994 |
| 5316432 | Wheelchair lifts with automatic barrier Steps are convertible into a platform of an elevator for wheelchairs such as installed in vehicles and buses, during which conversion a barrier is automatically raised from the bottom step to be at the outer edge of the platform. The barrier is operated b... | 05/31/1994 |
| 5287867 | Apparatus and method for insuring and controlling turbulent flow for cleaning ducts This invention concerns a system for insuring and accurately controlling the turbulent flow of a pressurized mixture of a gas and a cleaning fluid for purging and cleaning ducts. The pressures of cleaning fluid and the gas are continuously sensed and tran... | 02/22/1994 |
| 5275862 | Multi-ply panel board with shaped edge The disclosure concerns a hard multi-ply laminate, at least two of the plies comprising primarily wood fibers compressed with a plastic, and an intermediate ply of a different chemical composition than the wood fiber plies, and top and bottom plies of sub... | 01/04/1994 |
| 5259438 | Framed printout core for die and casting The framed printout is connected to an expendable core for a high-pressure die casting die, which printout is spaced outside and surrounds the cavity in the die. The casting and its cavity in the die has at least one open side into which the core is posit... | 11/09/1993 |
| 5236034 | Web reinforced expendable core This disclosure concerns an expendable core for molds such as die casting dies, which core has a central aperture which may be elongated. The outside of this core is provided with a plurality of parallel grooves across the elongated sides of the core para... | 08/17/1993 |
| 5213150 | Core knock-out fixture The special angular fixture or jig for mounting a casting, such as a die cast engine block, resiliently holds the casting both inside and outside of a cabinet, in which cabinet the casting is high-frequency-vibrated for removing an expendable and disinteg... | 05/25/1993 |
| 5207037 | Wall partition units The partition wall units include panels with mitered tubular frame strips, posts, raceways which also can be adapted for baseboards, and covering edge strips. Most of these units include a groove along an outer edge into which are removably mounted interl... | 05/04/1993 |
| 5125002 | Furnace electrode protector A sealed connection for a sleeve and jacket for protecting a molybdenum electrode mounted through the wall of an electric glass furnace. Around the electrode in the wall is a stainless steel sleeve coated on the inside with a fused alumina and having an o... | 06/23/1992 |
| 5115856 | Core box with large diameter vents and plugs The core box has a drag and a cope forming a mold cavity for forming a sand base core. This sand is injected into the cope and the air in the cavity is vented through vents remote or spaced away from where the sand is inserted. These vents are usually in ... | 05/26/1992 |
| 5080327 | Area displacement device for molten metal ladle An open-top, heat-resistant container, such as a molten metal ladle for filling the shot sleeve of a die casting machine, having a block rigidly attached to the ladle and partly submerged into the surface of the molten metal in the container or ladle for ... | 01/14/1992 |
| 5078202 | Floating wedge lock for slide on movable die This disclosure concerns dies for die casting machines having a stationary or cover die and a movable or ejector die which has a movable slide mounted thereon. A tapered trough is provided across the slide and into opposite sides of the movable die, and t... | 01/07/1992 |
| 5024551 | Resilient slalom gate A pair of parallel slalom posts connected by a flag, which flag is connected by an elastic strip with one of the posts, and the other post is provided with a tilting joint. Thus, if a skier touches the post with the tilting joint, the post can bend withou... | 06/18/1991 |
| 4986334 | Bottom vertical slide on a horizontal movable die of a vertical injector die casting machine A horizontally movable die has a bottom slide and cooperates with a stationary die in a die casting machine, which machine has a vertical injector for molten metal mounted underneath the dies and oscillatable to an acute angle to the vertical from under t... | 01/22/1991 |
| 4986335 | Dies for horizontal-vertical die casting machines A stationary die for a horizontal die casting machine has an oscillatable molten metal injector below the die that oscillates from an acute angle outside the die for filling with molten metal to an acute angle under the die or injecting the molten metal i... | 01/22/1991 |
| 4981168 | Mandrel holds expendable core in casting die This disclosure concerns a casting die for a cylinder, including engine blocks having a plurality of cylinders such as for internal combustion engines, including an expendable core for forming a jacket around the cylinders. This core has a printout portio... | 01/01/1991 |
| 4967531 | Wall partition units The partition wall units include panels with mitered tubular frame strips, posts, raceways which also can be adapted for baseboards, and covering edge strips. Most of these units include a groove along an outer edge into which are removably mounted interl... | 11/06/1990 |
| 4961772 | Method and apparatus for continuously melting glass and intermittently withdrawing melted glass A glass melting furnace comprises a base structure (6) defining a melting chamber (8) an intermediate chamber (10), and a working chamber (12), in which chambers heaters are located. An opening (22) is provided into the melting chamber (8), through which ... | 10/09/1990 |
| 4961458 | Method of forming a die casting with coated expendable cores A method for producing high pressure die castings with undercut regions comprises forming an expendable coated core of specific composition, placing it in the die in a die casting machine, injecting molten metal into the die to form the casting and separa... | 10/09/1990 |
| 4951731 | Process for washing a casting core The disclosure concerns a process of producing expendable coated cores for castings comprising mixing sand with a resinous binder, polymerizing the binder, and then washing the resulting bound sand core with an organic solvent to remove unpolymerized resi... | 08/28/1990 |
| 4942917 | Expendable casting core for a cylinder The hollow frusto-conical expendable core is used for forming a jacket around a cylinder in a casting die for forming a cylinder block. The core has a printout portion comprising an inwardly extending annular flange connected to the narrower end of the fr... | 07/24/1990 |
| 4942342 | Parallel sweeping system for electrostatic sweeping ion implanter A parallel sweeping system for electrostatic sweeping ion implanters comprising an ion source for generating an ion beam, first and second multipole beam deflectors along and around a common optical axis and a target wafer to be raster-scanned by the defl... | 07/17/1990 |
| 4913217 | Locators for expendable core in die casting die The locating pins have notched ends, each of which simultaneously restricts the movement of an expendable core in two orthogonal directions in a die casting die. A plurality of these pins alone and with other pins project into the space between the printo... | 04/03/1990 |
| 4894546 | Hollow cathode ion sources A hollow cathode ion source for in a vacuum chamber wherein it comprises a cylindrical cathode through one end of which a gaseous medium of at least a discharge maintaining gas or said discharge maintaining gas and a metal vapor is or are introduced, and ... | 01/16/1990 |
| 4871279 | Slalom post A slalom post (1) is described comprising at least one eccentrically pivoted disc-like anchor element (5, 8) normally positioned substantially within the cross-sectional area of the lower end of the post. By simply twisting the slalom post (1) around its ... | 10/03/1989 |
| 4867225 | Coated expendable cores for die casting dies The coatings are for an expendable sand core for die casting dies, which sand core has spaces between its contacting sand grains at least partially filled with resin binder. The first, base, hard, or refractory coating for this core is applied from an aqu... | 09/19/1989 |
| 4825603 | Elevated floor plate The disclosure concerns a square die-cast elevated floor plate having a top continuous or perforated panel reinforced underneath by a polygonal tessellation grid of ribs. All of the ribs of the grid, including their integral ejector pin bosses, and, if de... | 05/02/1989 |
| 4795076 | Soldering iron tip This disclosure concerns an improved tip for a soldering iron comprising a material which is both a good heat conductor, as well as a good electric insulator, such as for example an AlN ceramic. This ceramic may contain one or more metal coatings wettable... | 01/03/1989 |
| 4766943 | Expendable die casting sand core Sand cores containing an acid curable binding agent are used in the production of die castings having undercut regions because of the favorable combination of shakeout properties, resistance to washout, and resistance to surface penetration.... | 08/30/1988 |
| 4764066 | Light gauge self-tapping sheet metal screw This disclosure concerns a light gauge self-tapping sheet metal screw having a threaded shank and cap-type head, which head has a tool-engaging surface. Between the cupped recess of the head and the shank are a plurality of pyramidal ribs that extend part... | 08/16/1988 |
| 4745715 | Elevated floor plate The disclosure concerns a square die-cast elevated floor plate having a top continuous or perforated panel reinforced underneath by a polygonal tessellation grid of ribs. All of the ribs of the grid, including their integral ejector pin bosses and border ... | 05/24/1988 |
| 4718812 | Wheelchair lift with positive automatic handrail This concerns a wheelchair lift for a vehicle having upper and lower telescopic frames pivoted about an upper horizontal axis to swing out of the side of the vehicle. The lower telescopic frame is raised and lowered by sprocket chains connected around pul... | 01/12/1988 |
| 4660325 | Flexible window regulator assembly This disclosure deals with a window regulator assembly as a unit such as for vehicles and specifically vehicle doors, which doors have rigid frames so that the assembly may be installed in any type or shape of door, and the three parts of this assembly th... | 04/28/1987 |
| 4606477 | Portable pressure sprayer The disclosure concerns a reinforced plastic bottle or vessel with a relatively large neck with buttressed threads and bevelled rim on its neck onto which threads is screwed a cap assembly. This cap assembly comprises a plastic cap base member having a pa... | 08/19/1986 |
| 4606433 | Step convertible platform lift The disclosure concerns steps interchangeable into a platform lift, such as for wheelchairs for vehicles. Such a convertible step lift comprises a frame mounted in a rectangular notched-out floor section, which frame comprises corner posts which also act ... | 08/19/1986 |
