Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4842744 | Method for continuous filteration of fluids By this method, the fluid to be filtered is led through a filter bed formed of particulate filter particles, such as sand, which filter bed is retained in an upstanding annular space. The fluid is introduced to the interior part 15 of the annular space an... | 06/27/1989 |
| 4817666 | Fluid flow control valves A fluid flow control valve in a fluid flow control circuit comprises a cavity, first, second and third ports open to the cavity, and a valve member for selectively closing the first port or the second port. The third port serves as an input for receiving ... | 04/04/1989 |
| 4813747 | Rack assembly for advancing a winning machine A rack assembly for allowing movement of a winning machine utilized in underground, long-wall mining operations. The rack assembly is comprised of a plurality of rack sections positioned end-to-end and suitable for attachment to trough sections of a face ... | 03/21/1989 |
| 4811854 | Knuckle structure to ensure failure at knuckle throat portion An improved knuckle design for railway couplers wherein the knuckle pin is supported midway between its ends to prevent premature failure of the pin. The kidney core which forms the hollow cavity in the throat portion of the knuckle is isolated from the c... | 03/14/1989 |
| 4804006 | Washing water dispersion assembly for a dishwasher A portable, countertop dishwasher having a washing media dispensing nozzle structure which includes radially-projecting, washing media-dispensing arms located in surrounding relationship with the axis of the nozzle structure and axially intermediate upper... | 02/14/1989 |
| 4801217 | Construction mat formed from discarded tire beads and method for its use A mat construction usable in the construction, mining and the like industries wherein tire beads from used tires are tied together into an array with the use of strips of used tire casing. The mat can be used as an underlayment for roadways built over uns... | 01/31/1989 |
| 4799412 | Method for severing the ends of tubing Method for severing the ends of tubing by feeding the end of a tube through a die such that its end to be sheared extends beyond the die while presenting a shear blade with a pointed end in the interior of the tube end. After the shear blade is inserted i... | 01/24/1989 |
| 4796143 | Electric transformer for underground mining machine A transformer for use on an underground mining machine, such as a shearer loader. The transformer is cylindrical in shape and contains a central cavity extending therethrough to allow positioning of the transformer about a drive shaft of the motor of the ... | 01/03/1989 |
| 4787505 | Workpiece carrier assembly An adjustable workpiece carrier assembly for carrying workpieces on a conveyor system. Upstanding V-blocks used for supporting workpieces on the assembly, and are changeable so as to allow workpieces of different configurations to be supported thereon. By... | 11/29/1988 |
| 4775507 | Method for compacting spent nuclear reactor fuel rods A method for withdrawing spent fuel rods from a nuclear fuel rod assembly into a different nuclear fuel rod container wherein the spent fuel rods have a higher fuel rod density, whereby a greater number of spent fuel rods can be stored in a water storage ... | 10/04/1988 |
| 4773641 | Yieldable restraining members for barbell weights Collars are provided for yieldingly restraining weights from leaving the ends of a barbell. Each collar surrounds the barbell shaft and contains a set of grooves which receive snugly O-rings made of resilient material. In the unstressed condition of each ... | 09/27/1988 |
| 4773710 | Rack device for advancing a mining machine A rack device for advancing a drum cutter mining machine used in underground mining operations. The rack is comprised of a plurality of rack sections positioned end-to-end wherein the discrete sections are held together by brackets which connect two adjac... | 09/27/1988 |
| 4765940 | Method of transporting and forming tapered ends on piquets A conveyor-transfer apparatus for transferring artificial Christmas tree piquets (branches) from a first conveyor on which the piquets are parallel to the direction of travel of the conveyor to a second conveyor where they are arranged transverse to the d... | 08/23/1988 |
| 4762664 | Method and apparatus for compacting spent nuclear reactor fuel rods A method and apparatus for withdrawing spent fuel rods from a nuclear fuel rod assembly into a different nuclear fuel rod container wherein the spent fuel rods have a higher fuel rod density, whereby a greater number of spent fuel rods can be stored in a ... | 08/09/1988 |
| 4747351 | Solid-state whistle and horn activation system for model railroads Apparatus for actuating a sounding device for model railroad engines powered by an alternating-current voltage impressed across two rails, which apparatus is completely solid state in nature. The system includes input and output transistors which are norm... | 05/31/1988 |
| 4746487 | Storage rack for nuclear fuel assemblies A storage rack for spent nuclear fuel rods is provided having multiple parallel tubes of polygon cross-section with their confronting surfaces having embossed buttons in engagement and having at least one pad of neutron poison material interposed between ... | 05/24/1988 |
| 4744940 | Apparatus for compacting nuclear reactor fuel rods An apparatus for withdrawing spent fuel rods from a nuclear fuel rod assembly into a different nuclear fuel rod container wherein the spent fuel rods have a higher fuel rod density, whereby a greater number of spent fuel rods can be stored in a water-stor... | 05/17/1988 |
| 4741179 | Multi-post earring structure for pierced ears An ear ornament allowing attachment to an ear lobe containing more than one hole pierced therethrough. The ornament contains two or more bent portions for extension through the holes on the ear lobe allowing the ear ornament to be secured on the ear lobe ... | 05/03/1988 |
| 4733914 | Apparatus to deliver high pressure liquid from nozzles on a shearer drum for a mining machine A shearer drum for a mining machine used in underground mining is provided with cutter picks and nozzles on the periphery of the drum. The nozzles are subdivided into groups which extend substantially parallel to the rotational axis of the drum and each g... | 03/29/1988 |
| 4733692 | Tube coupling A tube coupling having a socket and a plug, each having a fluid flow passage extending therethrough, and a valve mounted in the flow passage of at least one of the socket and plug for axial movement between a first position for closing the flow passage an... | 03/29/1988 |
| 4727632 | Article and method for enclosing and protecting entombment caskets To overcome problems concerning storage of entombment caskets in crypts or mausoleums, particularly garden crypts, there is provided an air-tight end-capped casket-enclosing article made of suitable material, such as rotation-molded polyethylene or other ... | 03/01/1988 |
| 4723897 | Rotary engine A rotary engine includes a housing having a cylindrical internal surface on which seals are supported to prevent the flow of gases from spaces between two rotating pistons on separate but concentrically-arranged shafts. Three sets of gearing control relat... | 02/09/1988 |
| 4723192 | Automatic electricity control monitoring exit/entry device A device turns ON and OFF electrical power in a building in response to entry and exit of people. Four sets of infra red light emitters and receivers supply receiver signals to entry and exit monitor circuits having integrated circuits connected together ... | 02/02/1988 |
| 4721044 | Rail car skid insertion device A rail car skid insertion device for remotely inserting a skid onto a rail head of a rail spur to impede movement of a rail car is disclosed. The device includes a skid removably attached to a carrier arm mounted on a slide bar. The skid is attached to th... | 01/26/1988 |
| 4714583 | Method and apparatus for compacting spent nuclear reactor fuel rods A method and apparatus for withdrawing spent fuel rods from a nuclear fuel rod assembly into a different nuclear fuel rod container wherein the spent fuel rods have a higher fuel rod density, whereby a greater number of spent fuel rods can be stored in a ... | 12/22/1987 |
| 4704247 | Method and apparatus for compacting spent nuclear reactor fuel rods A method and apparatus for withdrawing spent fuel rods from a nuclear fuel rod assembly into a different nuclear fuel rod container wherein the spent fuel rods have a higher fuel rod density, whereby a greater number of spent fuel rods can be stored in a ... | 11/03/1987 |
| 4704612 | System for recovering a hunting arrow A method and apparatus for tracking an arrow and/or game animal shot in the sport of archery hunting is disclosed. The arrow contains a radio-frequency transmitter in a circuit also containing a power supply, and an inertia-activation switch in the shaft ... | 11/03/1987 |
| 4700697 | Cervical appliance to ameliorate sleep apneas A cervical appliance for preventing ventral flexion of the head to reduce the possibility of sudden infant death syndrome and/or adult sleep apnea, both of which have common characteristics which are at least partially obviated with the use of the inventi... | 10/20/1987 |
| 4674217 | Firearm with reversible barrel For firing bullets or cartridges of different lengths but the same caliber, there is provided a barrel which is threaded at both ends and reversible, with different-length bores in each end. There is desirably also a protective cap for the threads at the ... | 06/23/1987 |
| 4638650 | Rotary drive lock An adjustable lock for rotating drives, more particularly pipework fittings such as screwdown valves, gate valves or the like wherein the drive is required to make a number of revolutions. In the adjustable lock, a planetary transmission is provided as a ... | 01/27/1987 |
| 4630477 | Thermistor liquid-level sensing probe A thermistor-type liquid level probe formed entirely of corrosive-resistant material and having characteristics which make it highly reliable in service. The probe is particularly adapted for use in measuring the liquid level of corrosive liquids such as ... | 12/23/1986 |
| 4625646 | Aerial missile having multiple submissiles with individual control of submissible ejection An aerial missile carrying multiple launching tubes for submissiles in a circular locus about the longitudinal axis of the aerial missile has independent activating means for each said launching tube to pivot the rear discharge end of each launching tube ... | 12/02/1986 |
| 4622730 | Apparatus to mechanically stress a bolt-type fastener A plurality of jack bolts are threadedly engaged with openings in a flange on a fastener to stress a shank part of the fastener. The flange can be a collar retained on a shaft by a retainer, a nut on a threaded end of a bolt or the head portion of a bolt.... | 11/18/1986 |
| 4616500 | Method for producing tubing of varying wall thickness A method for producing tubing of variable wall thickness, and particularly for producing double-butted tubing, wherein the wall thickness or gage at the ends of the tube is greater than that in the intermediate portion of the tube. This is accomplished by... | 10/14/1986 |
| 4599110 | Process for the production of valve seat rings A process for the production of valve seat rings by powder metallurgy wherein molybdenum disulfide in the range of about 0.5% to 1.5% by weight is added to a powder mixture containing 0.8% to 1.5% by weight graphite, 1.0% to 4% by weight lead, 0.5% to 5% ... | 07/08/1986 |
| 4588230 | Control for mining machine A control for a mining machine having means for traversing a ground surface and a universally-pivotal carrier arm of variable length which carries at its forward end a cutter drum. A displacement pickup is responsive to forward or aft movement of the cutt... | 05/13/1986 |
| 4582297 | Tape and method for measuring and/or pulling cable A cable is pulled in a duct or along an overhead support line according to a method and through the use of a tape comprised of warp and weft threads. Indicia printed on the web is used to indicate the length of the course of travel for the cable along whi... | 04/15/1986 |
| 4565351 | Method for installing cable using an inner duct An inner duct is disclosed which can fit inside a duct and extend along a length thereof for receiving communication cable, particularly a light-guide cable. The inner duct has a continuous side wall with protruding ribs on the inside and outside surfaces... | 01/21/1986 |
| 4553925 | Flow distribution header system A dual flow distribution header system in which the flow is divided into two paths before the distribution header but after a metering device. The flow is controlled by separate butterfly valves in each path, whereby the control function is magnified and ... | 11/19/1985 |
| 4552622 | Cleaning apparatus for the sealing surfaces of leveling doors and leveling door frames of battery-type coke ovens Means for cleaning the sealing surfaces of coke oven leveling doors and frames, the cleaning means being installed on a coke-pushing machine without any increase in the normal overall length thereof. A carriage extends between and is movable along guidewa... | 11/12/1985 |
