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Thomas Edison ; 1922
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| Number | Title | Issue Date |
| 5538439 | Engine block heater and electrical connector thereto A combination of an engine block heater and electrical coupling includes the conventional cylindrical insert which slides into a sleeve on the mounting member for the block heater. An additional spring clip member is provided to hold the electrical coupli... | 07/23/1996 |
| 5450659 | Safety clamp for holding an animal trap against inadvertent actuation A safety clamp for mounting on wires of an animal trap to hold the trap against inadvertent actuation comprises a pair of flat plates arranged in spaced parallel position and squeezable together against resistance from a coil spring positioned there betwe... | 09/19/1995 |
| 5449175 | Manipulative puzzle A puzzle of the type including three tracks arranged on a sphere in radial planes mutually at right angles and elements movable along the tracks includes the elements in the form of balls rollable along cylindrical tracks with an open area of the track su... | 09/12/1995 |
| 5441147 | Plastic packaging collars for drink cans A conventional plastic packaging member of the type including a plurality of collars for engaging around the upper flange of a drink can to hold the cans together as a group for transportation is modified in that it is formed from two or more layers of pl... | 08/15/1995 |
| 5435689 | Conveyor for particulate materials A conveyor for particulate material such as grain comprises a conveyor duct with an improved hopper section which has side walls which can fold down flat to allow passage over the hopper section of a vehicle. The conveyor is the type including a belt Whic... | 07/25/1995 |
| 5433065 | Combine harvester with secondary cutter A conventional header of a combine is modified by the addition of a second sickle knife positioned rearwardly of the pan of the header. The second sickle knife is mounted on a bar which is connected to a pair of arms extending under the pan to a forward e... | 07/18/1995 |
| 5431201 | Robotic admixture system A system for filling containers with a prescribed medication includes a support head for receiving a disposable syringe which allows the syringe to be pumped to transfer liquid to an from the syringe. A robot arm is also provided to carry medication and d... | 07/11/1995 |
| 5428295 | Fault-locator for use in locating high-resistance ground faults in or on concentric-ground electrical power cables Faults in electrical coaxial power cables are detected by transmitting a pulsed signal into the cable at a frequency of 512 Hz at an amplitude of the order of 4000 volts peak-to-peak. The capacitance of the cable is adjusted by a separate capacitive tunin... | 06/27/1995 |
| 5424633 | Contactless test method and system for testing printed circuit boards This application describes a method of testing for manufacturing faults and quality of unpopulated or inactive populated electronic printed circuit boards (PCB). This method can be used to develop a new contactless test system (CTS). An electromagnetic fi... | 06/13/1995 |
| 5416930 | Air cleaning device for a toilet bowl An air cleaning device for attachment to a toilet bowl comprises a bracket mounted on the bolts behind the toilet seat and extending outwardly to one side. At the end of a bracket is mounted a cradle into which a housing is mounted including a fan housing... | 05/23/1995 |
| 5409191 | Sign support for engaging a suspended ceiling An apparatus for hanging a sign from a suspended ceiling of the type including T-runners and intervening ceiling panels comprises a ceiling engaging member defined by an extruded bar having a pair of tabs attached to each end so as to extend outwardly in ... | 04/25/1995 |
| 5410144 | Radiograph digitizer A dental film-based radiograph which is relatively small of the order of 40 mm by 30 mm is scanned and converted to a digital image by mounting the radiograph on a table movable in a single direction at a transparent aperture of the table and by transmitt... | 04/25/1995 |
| 5403024 | Foldable lightweight pallet carrier A hand pallet truck of the type comprising a head frame and a pair of forks projecting forwardly therefrom is modified by providing a hinge portion of the forks which can fold upwardly from the operating position to a storage position latched to the frame... | 04/04/1995 |
| 5402236 | Fiberoptic displacement sensor using interferometric techniques Displacement of an object from a sensor is detected using a fiber optic a discharge end of which is arranged adjacent to the space from the object. Light passing along the fiber optic is reflected at the discharge end and is also reflected by the object a... | 03/28/1995 |
| 5398349 | Pool cover A pool cover is formed by a plurality of hexagonal pads which float separately on the pool surface and orient themselves to cover the majority of the pool service in edge to edge floating relationship. The pads can be removed from the pool and stacked tog... | 03/21/1995 |
| 5396991 | Yarn spool holding tray A holding tray for spools of yarn suitable for embroidery machines comprises a molded body forming a flat horizontal base and a plurality of upstanding vertical pegs each of which is generally frustoconical in shape. At the top of each peg is formed a sli... | 03/14/1995 |
| 5384927 | Security rail attachment for a bed A security rail attachment for a bed comprises a post with an adjustable foot at the lower end, a rail portion mounted within the post and rotatable about the vertical axis of the post and an attachment rail which extends across the end of the bed and inc... | 01/31/1995 |
| 5375815 | Flexible fencing system In a fencing system for animals the conventional rigid fence panels are interconnected by flexible members which allow the fence panel to move each relative to the next to accommodate impacts by a fractured animal. Different embodiments are shown includin... | 12/27/1994 |
| 5361535 | Plant protection device Plants during an initial growth period are protected by a plurality of plastics drinks bottles arranged in a pattern surrounding an area in which the plant is growing. The drinks bottles are engaged by a locating device in the form of a flat sheet with a ... | 11/08/1994 |
| 5360075 | Steering drill bit while drilling a bore hole A conventional drilling system using continuous coiled tubing connected to a reel at its upper end and connected to a drilling tool at its lower end is steered by rotating the injector at the well head which drives the tubing into the well about an axis l... | 11/01/1994 |
| 5358266 | Wheel chair electric brake and pedal safety kit A conventional wheel chair is modified by the provision of a safety system for automatically actuating the brakes of the wheel chair and lifting the foot rests when the weight of the patient is lifted from the seat. An overcenter spring arrangement is use... | 10/25/1994 |
| 5358111 | Holder for used surgical needles Suture needles used in operations are stored after use on a holder which comprises a card strip having an adhesive layer across a top edge on the undersurface for attachment to a support surface and a foam strip along the top surface spaced from one side ... | 10/25/1994 |
| 5354256 | Apparatus for separating intermixed materials of different specific gravity An enhanced gravity laminar flow separation system is provided by a conical drum which has a plurality of flow channels along the inside surface of the drum. Feed material for separation is fed into the drum and accelerated by an impeller so as to enter t... | 10/11/1994 |
| 5353669 | Shear for sheet material and method for forming a transformer core from the sheet material A system is disclosed for manufacturing fully mitered step lap transformer cores which are formed from separate sheets which are laid face to face to form the separate pieces of the core. The system includes an X-shaped shear arrangement including four bl... | 10/11/1994 |
| 5350444 | Passenger vehicle with a filtered air intake The air intake of a conventional automobile which is mounted in front of the windshield under the air intake cover at the rear of the hood is modified by the introduction into the duct of the air intake of a filtration pillow. The pillow is formed from a ... | 09/27/1994 |
| 5349727 | Storage container for cremation ashes A storage container for cremation ashes comprises an outer decorative container with a hollow interior of generally rectangular shape. A similar rectangular inner container is formed of a transparent plastics material with a sealable end cap so that the a... | 09/27/1994 |
| 5343972 | Belly mount tractor An agricultural tractor comprises a front frame section, a rear frame section carrying the engine and cab and a horizontal beam connecting the front frame section to the rear frame section leaving a space between the front and rear wheels and underneath t... | 09/06/1994 |
| 5340040 | Disintegration of baled crop materials Apparatus for disintegrating baled material in the form of large cylindrical bales, a collection of small rectangular bales or large rectangular bales includes a hopper for receiving the baled material. At the base of the hopper is provided a flail cylind... | 08/23/1994 |
| 5339578 | Support form for a grade beam or slab A support form for use in the casting of a grade beam on piles comprises an elongate rectangular body having a width equal to the intended width of the grade beam. The body is located under the intended grade beam and the grade beam cast on top of the for... | 08/23/1994 |
| 5338284 | Centrifugal separator with substantially continuous discharge of fines A centrifugal separator with substantially continuous discharge of the concentrate comprises a centrifuge drum with axially spaced rings projecting inwardly from the peripheral wall of the drum. The material between the rings is fluidized by injection of ... | 08/16/1994 |
| 5338198 | Dental modeling simulator A three-dimensional model of the teeth of a patient is prepared by taking molded impressions of the mandibular and maxillar teeth, placing separately the impressions on a support table define an X-Y plane and detecting the Z distance from a probe by direc... | 08/16/1994 |
| 5334818 | Modular high density electric heating element arrangement for an air flow heater A heating element for an air flow comprises a channel shaped bracket including a base and side walls at right angles thereto within which is mounted a pair of mica sheets arranged parallel to the base and at right angles to the sides and connected to the ... | 08/02/1994 |
| 5332448 | Apparatus for cleaning air filters An air filter cleaning system comprises a support plate mounted on a frame with a clamping system for clamping an end face of the filter against the underside of the support plate. A supply tank can be filled with air up to a predetermined pressure. A duc... | 07/26/1994 |
| 5331719 | Door stop A door stop is formed from a single flexible band of sheet metal which is symmetrical about a transverse center line and includes an arch shaped central section and two end portions. An underside of one end portion includes a high friction material while ... | 07/26/1994 |
| 5332973 | Built-in fault testing of integrated circuits Built-in current mode quiescent current monitoring circuitry is provided for measuring a circuit's or a subcircuit's quiescent current. Anomalously high quiescent current (Iddq) generally results as a consequence of a manufacturing defect. These defects i... | 07/26/1994 |
| 5329651 | Bathing apparatus for the infirm A bathing apparatus is designed specifically for aged or infirm bathers to improve their independence. A conventional tub and shower enclosure is modified by a modular system including a pivotal support bar member which can move to a position projecting o... | 07/19/1994 |
| 5324097 | Bottom dump trailer A conventional bottom dump truck includes doors which in a closed position are suspended underneath the bottom opening of the hopper of the trailer. The doors are opened outwardly and upwardly by pivotal action about an upper suspension point of each of t... | 06/28/1994 |
| 5324598 | Storage rack for dry batteries A storage module for household type batteries of the "AAA", "AA", "C", "D" and "9-Volt" type comprises a generally rectangular body having a front face defining vertical receptacles each for receiving one of the different types. Across the top is provided... | 06/28/1994 |
| 5322582 | Pultruded part with localized regions of different resin materials A pultruded part is formed from thermosetting resin which is carried on continuous longitudinal fiber reinforcement into a die which shapes the resin and fibers into the required transverse cross sectional shape and then acts to set the resin. Some of the... | 06/21/1994 |
| 5322472 | Combine harvester with dust collection A conventional header of a combine harvester includes a sickle knife and a table onto which the crop material is deposited by a reel. The crop material is transported toward the feeder housing of the combine harvester by an auger transportation system. At... | 06/21/1994 |