In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7301433 | Fuse and truck cable assembly for a rail vehicle third rail current collector A fuse and truck cable assembly for a rail vehicle third rail current collector comprising a truck cable, a cable-engaging element, a fuse canister, a canister closure, a fuse contact element, and a flexible gland arranged so that the fuse can be replaced in the fus... | 11/27/2007 |
| 7188716 | Current collector Current collector for a third rail, including a base parallelogram extending from a vehicle, with a mounting for a collector shoe extending from the parallelogram, wherein the base parallelogram has a first leg running on the rail side, a second leg running along th... | 03/13/2007 |
| 7118384 | Model train coupling with integrated electrical contact A coupling for connecting model cars of a model train includes an integrated resilient contact supported by a first coupling member disposed against a mating electrical connector of a second coupling member. The first and second coupling members are configured to be... | 10/10/2006 |
| 6927971 | Ground elastic strap for compact flash housing A ground elastic strap for a compact flash card housing, for serving as a ground elastic strap of a connector inserted by a compact flash card, or inserted into a host housing, includes corresponding left and right elastic protruding pieces, so as to come into conta... | 08/09/2005 |
| 6557676 | Innovia vehicle lock-on device Disclosed is a lock-on device including a member and a grounding pad. A first end of the member is configured to be connected to a guide frame of a rail vehicle. The grounding pad is attached to a second end of the member. The grounding pad may be attache... | 05/06/2003 |
| 6105741 | Electric distribution systems and electrical take-off apparatus therefor An electric distribution system which includes an elongated generally channel-shaped busway having a top wall and a pair of side walls with bus bars secured to the interior of the side walls. An electrical take-off is slidably secured within the busway wi... | 08/22/2000 |
| 6079335 | Unsprung third rail collector beam support for a swing arm primary suspension railway truck There is an electric railway truck comprising an unsprung third rail collector beam for a swing arm primary suspension. The collector beam and attached current collector is mounted to the truck frame through the use of mounting adapters, links, and elasto... | 06/27/2000 |
| 6070703 | Adjustable contact shoe assembly for a train A contact shoe assembly for a train movable along a support track having an electrically-energized power rail extending substantially parallel with the support track. The contact shoe assembly includes a support member with two spaced-apart guide channels... | 06/06/2000 |
| 5676224 | Electrical collector shoe assembly An electrical collector shoe assembly for a rail electrification system, including a metal holder member in the form of an elongate block body having spaced-apart gripping flanges projecting from its opposite sides upwardly and inwardly of the body, an el... | 10/14/1997 |
| 5673774 | Auxiliary vehicle current collector An energy collector allows flow of electrical energy between a vehicle and a rail of a railway track. The energy collector includes a vehicle mounting device for mounting the energy collector to such vehicle; a collector shoe for sliding electrical contac... | 10/07/1997 |
| 5669472 | Contact shoe assembly for a train A contact shoe assembly for a train movable along a support track having an electrically-energized power rail extending substantially parallel with the support track. The contact shoe assembly includes a support member with two spaced-apart guide channels... | 09/23/1997 |
| 5464082 | Electrical vehicle transportation system An electrical vehicle transportation system in which a steerable electrically powered automotive vehicle receives electrical power from electrified conductors located above a roadway or affixed to the roadway, through an electrical pickup on the vehicle h... | 11/07/1995 |
| 5454456 | Third rail collection assembly and beam therefor The present invention is a third rail assembly that includes a beam made of synthetic material which will not crack upon exposure to the elements so that conductive material such as water, grease, or the like will not settle in the cracks. Also, the beam ... | 10/03/1995 |
| 5193656 | Collector shoe for collector and process for producing it A collector shoe for a collector with a carbon brush and a support has, between the carbon brush and supporting element, a galvanically applied metallic layer. The galvanic layer anchors a head portion of a conductor member to the carbon brush. The conduc... | 03/16/1993 |
| 5152380 | Collector shoe for collector and process for producing it A collector shoe for a collector with a carbon brush and a support has, between the carbon brush and supporting element, a galvanically applied metallic layer, which, at least at one end, either extends itself over the carbon brush at an angle, its extens... | 10/06/1992 |
| 4851617 | Device for mounting third rail engaging equipment on railway trucks A device for mounting third rail engaging equipment on a railway truck comprises a fixed part mounted on and extending outwardly from a side member of a railway truck and a vertically moveable part pivotally mounted on the fixed part and mounting the thir... | 07/25/1989 |
| 4723641 | Contact collector shoe assembly A collector shoe assembly for transmitting current from an electrified rail to a mobile unit such as a trolley, crane, conveyor, or the like. In a preferred embodiment the electrical collector comprises an electrically conductive shoe for slidably engagin... | 02/09/1988 |
| 4572929 | Assembly for the transmission of electrical energy to vehicles An assembly for the transmission of electrical energy to a vehicle comprises two current rails with respective contact surfaces inclined at an angle toward each other in a roof-like arrangement and a current collector having a sliding shoe with a pair of ... | 02/25/1986 |
| 4546706 | Equipment mounting structure for inside bearing railway car trucks For supporting equipment which must be maintained at constant height above the rails, such as third rail collection gear, on inside bearing trucks in which the truck frame is spring-supported from journal boxes vertically movably mounted in downwardly ope... | 10/15/1985 |
| 4526108 | Means for supporting third rail collector gear and the like on inside bearing railway trucks For supporting equipment such as third rail collection gear, which must be maintained at constant height above the rails, on inside bearing trucks in which the truck frame is spring-supported from journal boxes vertically movable relative to box section t... | 07/02/1985 |
| 4464546 | Power collection apparatus for a vehicle A transportation vehicle power collector apparatus is operative with a power rail having position changes and misalignments in relation to that vehicle travel path and includes a power collector shoe movable in each of three cartesion coordinates to maint... | 08/07/1984 |
| 4324301 | Bumper car amusement ride A bumper car amusement ride includes a floor to which is adhesively bonded over their entire under surfaces a plurality of elongated electrically conductive plates separated by electrically non-conductive strips and with adjacent plates connected across a... | 04/13/1982 |
| 4300666 | Current collecting means in an aerial cableway system A current collecting means in an aerial cableway system collecting electric power for driving a self-propelled aerial carriage, is capable of maximization of the lifetime of a current collecting shoe. The current collecting means comprises a current-carry... | 11/17/1981 |
| 4286698 | Sliding contact for a toy vehicle A sliding contact for a toy rail vehicle has a body part having a convex slide face and a depression which is provided in the convex slide face and arranged so as to form on the latter an edge by which said slide face linearly contacts with a current-cond... | 09/01/1981 |
| 4267906 | Sliding contact for a toy train A sliding contact for collecting current from a two-rail track system of a toy railroad to a toy train, has a holding plate, two contact pins mountable on the toy train by the holding plate and arranged to be located above the rails, and a sliding bridge ... | 05/19/1981 |
| 4254851 | Bus bar switch for trolley-type transportation system Two shiftable bus bar unit point sections are simultaneously shifted to allow one of the sections to align with a stationary bus bar unit point section. A coupler slides on the stationary point section toward the just aligned one of the shiftable point se... | 03/10/1981 |
| 4246986 | Current collection system for travelling body A current collection system for a travelling body comprising main rigid trolley rails continuously arranged one after another in the direction of the track of the travelling body; an auxiliary rigid trolley rail which is arranged between the confronting e... | 01/27/1981 |
| 4234065 | Means for feeding electric power to track guided vehicles Three phase power feeding device for a track guided vehicle including three power feeding lines provided along one side of the track, the center one of the feed lines being located closer to the track than the other two of the lines. The vehicle is provid... | 11/18/1980 |
| 4168770 | Power collection apparatus for a transportation system A power collection apparatus is disclosed for the purpose of power distribution from a central power supply to the propulsion motors of at least one mass transit vehicle operative with a predetermined roadway track, including one or more rail gaps and/or ... | 09/25/1979 |
| 4155434 | Electric conductor system for rapid transit railways A rail electrification system for electric railways utilizing 3-phase power, comprising three conductor rails arranged in a group characterized by a staggered relationship, commonly known as a delta configuration, so that two of the rails face in one dire... | 05/22/1979 |
| 4108288 | Current collector shoe suspension for externally powered electric vehicle A current collector shoe suspension for sliding contact with an electric power line in an externally powered electric vehicle. Current collecting shoes are resiliently biased toward a power rail through a plurality of interconnected vibration absorbing un... | 08/22/1978 |
| 4042081 | Manual control of third rail power knockout Manual closure of a switch in a power-supply circuit to an explosive type bolt causes detonation of the bolt which releases a caged spring that thereupon is rendered effective to rock a lever in the direction to lift a current-collecting shoe out of engag... | 08/16/1977 |
| 4023658 | Detachable wear pad for the third rail shoe on an electric railway car The wear pad of a third rail shoe for an electric railway car has the electrode opening therein so configured as to tip the electrode substantially to the attitude of the overhead cable attached to the electrode.... | 05/17/1977 |