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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 5150585 | Energy recovery system for cold storage warehouse Energy recovery systems for cold storage warehouses refrigerated by mechanical refrigeration apparatus coacting with a energy recovery unit including a turbine driving an electromotive generator. The cogenerator turbine is driven by the kinetic energy ext... | 09/29/1992 |
| 5149290 | Confetti cannon A portable, lightweight confetti cannon for projecting confetti to heights of 30-40 feet in the air is used to create spectacular displays for rock concerts or stage shows. The cannon consists of a hollow barrel having a length of at least 8", preferably ... | 09/22/1992 |
| 5145370 | Dental fiberoptic handpiece hose assembly A dental fiberoptic handpiece hose assembly comprises a flexible aspetic outer tubing that contains internally a plurality of conduits and wires for the drive air, exhaust air, coolant water and "chip" air, as well as a fiberoptic bundle and a sensing cab... | 09/08/1992 |
| 5136822 | Prefabricated building elements The prefabricated building element of the present invention is manufactured in a variety of modules. All of the exterior modules have a surface designed to be exposed to the outside environment and fabricated from exterior building materials typically use... | 08/11/1992 |
| 5123620 | Accessory container for ladder An accessory container is designed to be mounted over the top platform of a stepladder. The accessory container includes a forward compartment defined by a front wall, a back interior wall, a right side wall, a left side wall and a bottom wall. The forwar... | 06/23/1992 |
| 5120060 | Casino game method and apparatus A coin is inserted into a coin slot and another coin is dropped from the top center of a playing field into a pachinko-type maze. The pachinko-type maze includes animated diverter pins and a series of capture gates. Each capture gate has associated therew... | 06/09/1992 |
| 5115941 | Newspaper vending machines A newspaper vending machine has a newspaper holder with a dispensing housing that holds the newspaper in the holder. When the door of the vending machine is opened, the dispensing housing is mechanically moved from its closed position to an open position ... | 05/26/1992 |
| 5112060 | Gaming table apparatus A gaming table is provided with a coin slot and a coin detector at each of a plurality of player locations. Each coin slot and coin detector is connected to a conduit that leads to a hopper on the interior of the gaming table. The hopper collects each coi... | 05/12/1992 |
| 5109996 | Nursing bottle assembly with means to remove air A nursing bottle assembly of the type in which a collapsible liquid sack having an open end and a closed end and is contained in a protective tube open at both ends that is provided with a plunger for expelling air from a collapsing liquid containing sack... | 05/05/1992 |
| 5105741 | Portable equipment handling apparatus A portable equipment handling apparatus comprises a track assembly that can be laid out in any desired configuration throughout a manufacturing plant, on a construction site or other desired facility. A movable platform is mounted on the track assembly an... | 04/21/1992 |
| 5098339 | Coin feeding device The coin dispensing device is adapted to be disposed at the bottom of a vertical coin hopper and receives loose coins to be dispensed from the coin hopper. A first rotating agitator disk withdraws the loose coins from the coin hopper and feeds the coins t... | 03/24/1992 |
| 5088924 | Dental fiberoptic handpiece hose assembly and method A fiberoptic dental headpiece hose assembly has a smooth-walled, aseptic outer tubing that contains a plurality of internal components to provide drive air, an exhaust line, chip air and coolant water to the dental handpiece. The fiberoptic handpiece hose... | 02/18/1992 |
| 5085678 | Exhaust gases and particulate capture system An exhaust gases and particulate capture system comprises an aspirator unit and a secondary stack mounted in fluid cooperation with a large water tank. Exhaust gases, along with entrapped particulates from the combustion process, are removed from a smokes... | 02/04/1992 |
| 5083839 | Apparatus for grooving or grinding pavement A rotary grooving or grinding drum is mounted about a drive shaft. The drum has an inner core of steel, an intermediate sleeve of neoprene rubber and an outer sleeve of steel. The neoprene intermediate sleeve provides absorption of the shocks, jars and ha... | 01/28/1992 |
| 5081840 | Spool valve and piston power plant This power plant utilizes a multi-cylinder hydraulic engine that has a plurality of pistons and cylinders arranged for reciprocal movement. Each piston is powered by a hydraulic fluid or air pressure. The fluid exhausted from one cylinder is sent to anoth... | 01/21/1992 |
| 5078405 | Apparatus for progressive jackpot gaming A method and apparatus for including a progressive jackpot component in a live casino table game. In addition to playing a live casino table game, each player makes an additional wager at the beginning of each hand that makes that player eligible to win a... | 01/07/1992 |
| 5072946 | Method of playing a wagering casino-type card game The method of playing a game utilizes one or more decks of cards. One card is dealt to a first player and one card is dealt to a second player. The numerical value of the first player's card is compared to the numerical value of the second player's card. ... | 12/17/1991 |
| 5069610 | Drywall finishing tool adapter Adapter for a mastic applicator and finishing tool flat box having a guide plate and corner guide assembly adapted to be mounted on opposite side and end walls of the flat box. Each corner guide is slidable between an extended position in which it has an ... | 12/03/1991 |
| 5067570 | Auger and retaining shell assembly An auger assembly for drilling holes in the ground includes an auger blade mounted for vertical movement and a dirt retaining shell that surrounds the auger blade also mounted for vertical movement in relation to the auger blade. When the hole has been dr... | 11/26/1991 |
| 5067569 | Auger and sweeper assembly An auger assembly for drilling holes or similar openings in the ground includes an auger blade mounted for vertical movement and a dirt retaining shell that surrounds the auger blade also mounted for vertical movement independently of the auger blade. Whe... | 11/26/1991 |
| 5067058 | Skateboard having lighting system An improved skateboard having roller trucks attached to the underside of the skateboard deck. The trucks are insulated from the skateboard deck by riser pads of sufficient thickness to receive and house self-contained battery operated lamps. The lamps are... | 11/19/1991 |
| 5066261 | Coin hopper assembly A coin hopper is provided with a rotary pin wheel for feeding coins to a pay out mechanism. A wiper member is mounted adjacent the rotary pin wheel slightly removed from the position at which the rotary pin wheel feeds coins to the pay out mechanism. The ... | 11/19/1991 |
| 5058256 | Bearing carrier puller tool A bearing carrier puller tool has a central cylindrical body member that receives a threaded puller bolt. Disposed on each side of the central body member is a mounting member that receives a puller arm threaded therein. Each puller arm has a foot portion... | 10/22/1991 |
| 5054542 | Heat transfer system A heat transfer system for a building and the building's appurtenances utilizes a heat transfer medium that obtains heat from environmental panels. The heat transfer medium flows in a unidirectional mode through the system. The heat transfer medium is pas... | 10/08/1991 |
| 5052180 | Fluid pressure driven power system A fluid pressure driven power system having a plurality of rotors keyed to a shaft rotatably journaled within a casing having, the rotors each having a plurality of fins extending around its periphery with the fins projecting above the perimeter of the ro... | 10/01/1991 |
| 5049071 | Dental syringe tip and adaptor A clear rigid plastic syringe tip having a central water passageway and three arcuate section air passageways disposed circumferentially about the water passageway. The syringe tip has an extension that mounts the syringe tip into an adaptor which holds t... | 09/17/1991 |
| 5048849 | Change stroller A change stroller has a vertically upright framework mounted on wheels and a laterally extending upper cross member on which a change belt is supported. The stroller wheels are positioned to provide a center of gravity that will compensate for the off cen... | 09/17/1991 |
| 5040809 | Portable folding cart A portable folding cart can be collapsed into a compact storage assembly. The base of the cart is a generally rectangular platform for supporting items to be transported. A plurality of wheels are mounted to the underside of the platform. The platform has... | 08/20/1991 |
| 5031353 | Dominator wire A dominator wire comprises a plurality of braided strands forming a continous wire. Each separate strand is supplied with an electrical current that is different than the electrical current that is supplied to each of the other strands. A plurality of ins... | 07/16/1991 |
| 5022653 | Electronic poker game An electronic device is used to play a card game in which a player and a dealer are each dealt five cards. If the dealer has a poker hand having a value less than an Ace-King combination or better, the player automatically wins. If the dealer has a poker ... | 06/11/1991 |
| 5020672 | Basket grass container A mesh container holds plastic synthetic grass strips that are used to form a support cushion for candy and other items in an Easter basket. The mesh size is selected to be of the appropriate gauge to minimize the possibility of the grass strips from fall... | 06/04/1991 |
| 5020407 | Adjustable form tool head A form tool built to be used in a single station of a turret press machine for the sheet metal industry that comprises a punch body rigidly attached to an adjustable form tool head. The adjustable form tool head is quickly adjustable for different forming... | 06/04/1991 |
| 5018417 | Graphic tape slicer The graphic tape slicer comprises a frame having a feed guide at the rear end for receiving the graphic tape from a roll. A cutting blade is mounted in the center of the frame on a traveling blade holder that engages a threaded rod. Rollers through which ... | 05/28/1991 |
| 5016879 | Pachinko game A playing field has a plurality of pachinko mazes arranged side by side. Each pachinko maze has a scoring slot at the bottom of the maze. When each playing disk falls into a particular scoring slot, the value of the slot is determined. The value of each s... | 05/21/1991 |
| 5014647 | Fish culture system A fish culture system for cultivating fish contained in tank-like silos through which aerated water that may also contain food and/or medicine is circulated in such a way that the water circulates upwardly through the silos. Individual silos containing di... | 05/14/1991 |
| 5015211 | Confetti cannon A portable, light-weight confetti cannon for projecting confetti to heights of 30-40 feet in the air is used to create spectacular displays for rock concerts or stage shows. The cannon consists of a hollow barrel having a length of at least 3 feet and a l... | 05/14/1991 |
| 5013049 | Card game A deck of 54 cards is used comprising a standard deck of 52 playing cards plus two Jokers. Each Joker has a numerical value of 7 and has no suit value. The Face Cards and 10's count zero, the Aces count 1 and all other cards have their face value. A playe... | 05/07/1991 |
| 5009620 | Propeller guard A propeller guard is provided with replaceable ribs that form a cage is placed around the propeller of an outboard marine propulsion unit. The ribs are suspended from a flat upper plate adapted to be bolted to a cavitation plate above the propeller. The r... | 04/23/1991 |
| 5005378 | Liquid chilling apparatus An apparatus for the rapid chilling of bottled liquids, the apparatus being adapted to support and rotate the bottle in a low temperature medium contained in a bucket. The apparatus comprising a gear drive mechanism supported on a bridge over the bucket a... | 04/09/1991 |
| 5005339 | Coin roll boxing apparatus An apparatus for boxing coin rolls comprising a hopper feeding coin rolls to a rotary orienting feeder that discharges the coin rolls through a discharge chute. A conveyer belt system receiving the coin rolls and transporting the same to a manifold. A man... | 04/09/1991 |
