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| Number | Title | Issue Date |
| 5917064 | Filter with heated tube sheet A tube type hot gas filter having a ceramic tube sheet supporting a plurality of tubular filter elements in a filter chamber includes an annular heating chamber surrounding the edge of said tube sheet and through which hot gas from the downstream side of ... | 06/29/1999 |
| 5845547 | Tool having a tungsten carbide insert An excavating tool has a tungsten carbide insert which is more wear resistant and not subject to breakage because of being too brittle. The insert has a semispherical tip, a divergent midsection and a base with a conical rear surface. The insert is made w... | 12/08/1998 |
| 5823635 | Method and apparatus for attaching a cover to the wheel of a vehicle where the wheel has hand holes Brackets are fitted on the inner surface of a wheel cover to attach the wheel cover to a wheel having a plurality of hand holes. Each of the brackets has at least one finger adapted to fit through a hand hole on a wheel and extend behind the web of the wh... | 10/20/1998 |
| 5823255 | Tubular casing cutter A machine for cutting a length of pipe has a body with cross-sectional dimensions which are less than the inner diameter of the pipe to be cut. The machine has a plurality of legs which extend radially from the body such that the machine can be fitted wit... | 10/20/1998 |
| 5822980 | Device for reducing molecular pollutants in the gases from a combustion engine A device for removing molecular pollutants from exhaust gasses has a cylindrical chamber and a rotating probe extending axially through the length of the chamber. A spark pin projects from the outer surface of the probe, and a train of high voltage electr... | 10/20/1998 |
| 5814996 | Leakage detector having shielded contacts The noise received by the unused connectors limits the accuracy of a device for measuring the leakage from a piece of electronic medical equipment. To reduce noise the device is surrounded by a Faraday shield which encloses unused connectors of the device... | 09/29/1998 |
| 5799738 | Doweling hole drilling machine A doweling hole drilling machine includes a vehicle such as a tractor having a frame pivotally mounted to the side of the tractor. The frame is moveable around an axis parallel to the longitudinal axis of the vehicle from a first horizontal orientation to... | 09/01/1998 |
| 5795027 | Furniture made of foldable materials Blanks of stiff material such as corrugated cardboard are foldable to form an ottoman and an arm chair.... | 08/18/1998 |
| 5794949 | Collet A collet for retaining a work piece comprises a plurality of wedge segments, and each of the wedge segments has inner and outer surfaces which, when the segments are assembled, form a collet having a cylindrical bore and a frustonconical outer surface, an... | 08/18/1998 |
| 5761241 | Process and device for measuring the jitter of a digital signal The jitter of a serial digital signal is measured by determining a recurrent time window and generating a measurement ramp for each window for which the amplitude of the ramp grows proportional to the positive transition of the digital signal. The amplitu... | 06/02/1998 |
| 5717338 | Method and apparatus for testing television yokes and flyback transformers A method and apparatus for testing flyback transformers counts the number of cycles of a decaying ringing signal generated in a resonant circuit including the secondary winding of the flyback transformer beginning with the second cycle and ending with the... | 02/10/1998 |
| 5703598 | Method and system for tracking stolen property A method of tracking stolen property uses a continously powered radio receiver for receiving encoded signals from a central station. When the received signal corresponds to a unique code stored at the receiver, a GPS receiver and a radio transmitter locat... | 12/30/1997 |
| 5697617 | Game A game includes the head of an animal having a pair of jaws therein which are movable from an opened condition to a closed condition. The jaws are adapted to close upon a play object tossed between them, and a conveyor returns fallen play objects back to ... | 12/16/1997 |
| 5692422 | Squaring machine A squaring machine has an elongate housing with a rotatable spindle extending from one end thereof and attached to which is a tool for squaring the end of work piece. At the opposite end of the housing are first and second feed members, the first feed mem... | 12/02/1997 |
| 5690183 | Drill head unit The present invention is an improved drill head unit in which the lower portion of the drill chuck has a lobed shaped cross section which fits into a corresponding lobed shaped opening in a shaft connected to a spiral bevel gear mounted for rotation about... | 11/25/1997 |
| 5639268 | Through the wall connector Through the wall hot and ground type stud connectors are disclosed for use being positioned through truck and other heavy duty motor vehicle battery box side walls, engine firewalls, dashboards and the like. The stud connector includes a unitary conductiv... | 06/17/1997 |
| 5634296 | Remote control door operating device A door controlling device for opening and closing a door in a wall has a first arm, one end of which is mounted to the wall and the other end of which is pivotally attached to the second end of a second arm. The first end of the second arm is pivotally at... | 06/03/1997 |
| 5630653 | Wheel cover mounting bracket To attach a wheel cover to a vehicle wheel, mounting brackets are provided which are attached to the lug nuts which retain the wheel to the vehicle hub. Each bracket includes a threaded bore for receiving a screw extended through the wheel cover to retain... | 05/20/1997 |
| 5619893 | Tube squaring machine A squaring machine has an elongate generally cylindrical housing with an axially mounted motor at one end of the housing which rotates a shaft extending through the axis of the housing. The shaft is longitudinally moveable within the housing, and a non-ro... | 04/15/1997 |
| 5605084 | Squaring machine for various sized tubes A squaring machine has an elongate housing with a rotatable spindle extending from one end thereof and attached to which is a tool for squaring the end of work piece. At the opposite end of the housing are first and second feed members, the first feed mem... | 02/25/1997 |
| 5564706 | Practice putting green A practice putting green has an upper surface of material which simulates the green of a golf course and a support which raises the material of the upper surface upon which the practice putting green is positioned. The practice putting green has a general... | 10/15/1996 |
| 5564304 | Tool for rounding the end of a tube A tool for rounding the end of a tube has an anvil with a cylindrical midsection and a tapered forward end. Extending rearwardly from the rear end of the anvil is an elongate shaft, and around the elongate shaft is a cylindrical hammer which slides axiall... | 10/15/1996 |
| 5559874 | Telephone service protection device A device is provided to prevent an unauthorized telephone unit from initiating a telephone call, where the unauthorized telephone unit is connected between the central office of the telephone company and the authorized telephone units of the user. The dev... | 09/24/1996 |
| 5551760 | Tungsten carbide insert for a cutting tool A tungsten carbide tip for a cutting tool has a tapered body with a forward cutting end and a rearward base for mounting in a socket. The body has a plurality of grooves along the length thereof, which in one embodiment extend from the lower surface of th... | 09/03/1996 |
| 5546941 | Patient operated tonometers An improved tenometer provides for a bellows and a stepper motor to pressurize the interior of a probe in the barrel into which the probe is fitted for moving the probe outward towards a patient's eye. The device also includes a laser for improved centeri... | 08/20/1996 |
| 5528845 | Attraction boards and the mounting therefor A frame is attachable to a vertical wall of a building and includes a plurality of arms which extend outwardly from the wall. An attraction board is supported at the distal ends of the outwardly extending arms, and an awning is extended across the arms an... | 06/25/1996 |
| 5520395 | Shape identification game using sense of touch A game has a first plurality of different interlockable play pieces and a second plurality of cards depicting plans for assembling some of the interlockable pieces into a rectangular pattern. The play pieces are placed in a flexible bag having a plurality... | 05/28/1996 |
| 5519955 | Muzzle loading rifle A muzzle loading rifle has a cocking member which is rotatable about an axis perpendicular to the central axis of the barrel of the rifle and has a cam mounted on the distal end thereof. When the cocking member and the cam are rotated, the cam will move t... | 05/28/1996 |
| 5513529 | Housing assembly for flow meter An improved industrial meter housing assembly includes a compactly designed metal housing having a central trefoil shaped chamber and minimal length inlet and outlet ports in fluid communication with the chamber with the ports ending at inlet and outlet p... | 05/07/1996 |
| 5508098 | Two-layer knitted fabric for active and leisure wear A two-layer weft knitted fabric of a three-thread fleece construction has an inner layer of polypropylene yarn, which is raised to form a fleece, and an outer layer of cotton yarn. The fabric is of a plain plaited structure consisting of a cotton face and... | 04/16/1996 |
| 5500029 | Filter element and method of manufacture A unitary candle filter employs a wrapping of continuous filamentary ceramic material in the form of a yarn or twine wrapped over a porous ceramic support tube to hold the support structure intact during a high pressure backwash operation. A thin filterin... | 03/19/1996 |
| 5492183 | Drill head unit The present invention is an improved drill head unit in which the lower portion of the drill chuck has a lobed shaped cross section which fits into a corresponding lobed shaped opening in a shaft connected to a spiral bevel gear mounted for rotation about... | 02/20/1996 |
| 5487231 | Attraction board for retaining an enlarged figure panel thereon An attraction board has a substantially vertically oriented back with a plurality of horizontal tracks thereon, each track having a downwardly extending upper lip and a upwardly extending lower lip for retaining a figure panel therebetween. A downwardly e... | 01/30/1996 |
| 5485707 | Method and apparatus for relieving hydrostatic pressure from under a swimming pool A fitting for relieving hydrostatic pressure under a swimming pool includes a sleeve and an associated removable plug, both of which have planar upper surfaces. Fittings in accordance with the invention are installed in the shallow end of a swimming pool ... | 01/23/1996 |
| 5484191 | Insert for tungsten carbide tool Tungsten carbide inserts which are the cutting tips of a rotating excavating tool have a forwardmost cutting end and an intermediate cutting surface which are formed of tungsten carbide alloys having different degrees of hardness. In a preferred embodimen... | 01/16/1996 |
| 5484088 | Presettable indexed adjustable dose dispenser An adjustable liquid dose dispenser utilizes complimentary, interfitting parts on a rotationally adjustable actuator on the cover of a pressurized container to index a rotationally adjustable valve stem relative to a plurality of reference marks on the ac... | 01/16/1996 |
| 5469580 | Shampoo cape A shampoo cape has a generally rectangularly shaped web of pliable material and along the sides of the web are semi-rigid elongate side members. The device is held in position against the neck of a person whose hair is being shampooed by a detachable stra... | 11/28/1995 |
| 5469063 | Method and apparatus for testing for a high voltage on the chassis of an electronic apparatus A test instrument for determining whether an apparatus has a high voltage on the chassis thereof includes a meter, a probe and a socket for receiving a plug from the device being tested. The device also has a plug for insertion into an AC outlet. The test... | 11/21/1995 |
| 5461317 | Device for testing for a high voltage on the chassis of a piece of electronic apparatus A device for testing for leakage of electronic equipment has a female AC connector for receiving the male AC connector of the electronic equipment to be tested and a male AC connector for attaching the test device to a source of AC power. The device also ... | 10/24/1995 |
| 5458210 | Drill bits and blades therefor A drill blade for a drill bit intended to be used to bore holes in the roofs of mines is made of hardened tungsten carbide. The blade has two end sections, one on each side of a central section, and the end sections have a higher degree of hardness than t... | 10/17/1995 |
