Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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 |
| 8042675 | Self-supporting guiding system for moving walkways The invention relates to a system having: a first longitudinal member and a second longitudinal member arranged symmetrical to the first longitudinal member in relation to a longitudinal mid-plane of the conveyor system, to define a forward movement track and a retu... | 10/25/2011 |
| 7568571 | Conveyor device In order to suppress speed irregularity of step rollers (5) in a passenger conveyor, a bent section (17) is formed in a step guide rail (3) and a restraining member (18) is provided upstream thereof, the shape of the height of the bent se... | 08/04/2009 |
| 7533765 | Shock absorbing device for passenger conveyors A shock-absorbing device for passenger conveyors comprises shock-absorbing members, which are attached respectively to at least one side of each of an inner rail and an outer rail of a track and protrude from the inner and outer rails toward a step roller. Supportin... | 05/19/2009 |
| 7401692 | Device for restraining the rise of a step roller of an escalator A device for restraining the rise of a step roller of an escalator prevents the step roller from colliding with rails of a track in turn around areas at the top and bottom of the escalator. The device comprises: a supplementary roller, which is disposed between an o... | 07/22/2008 |
| 7357241 | Device for restraining the rise of a step roller of a people conveyor People conveyor (2) including an endless conveyor band (4) extending through an inclined portion (6), a first and a second turnaround portions (8) and a return portion (5) of an endless path and comprising a plurality of steps (... | 04/15/2008 |
| 7264565 | Transfer guide for high-speed power transmission A transfer guide for a high-speed power transmission, which can cancel a change in a transmission chain speed so that smooth transmission timing can be realized and a driving power and vibration noises of the transmission chain can be significantly reduced. A curve ... | 09/04/2007 |
| 7232028 | Cleaning unit for cleaning travel equipment, travel equipment with a cleaning unit and method for carrying out a cleaning sequence for cleaning travel equipment A cleaning unit for cleaning travel equipment allows the travel equipment to be shifted from an operating mode to a cleaning mode. The cleaning equipment is an escalator or a moving walkway which has tread units connected with an endless conveyor. The cleaning unit ... | 06/19/2007 |
| 7159705 | Passenger conveyor device A plurality of steps 33 are connected to a pair of step chains 32 wound around step chain sprockets 30. The step chain sprockets 30 drives the step chains 32 to turn the step chains 32 through a forward path 43a | 01/09/2007 |
| 7124875 | Escalator with high speed inclined section An escalator with a high speed inclined section, includes link mechanisms, each of which has a first link with a first end rotatably connected to a step link roller shaft, and a second link, a first end of which is rotatably connected to a middle portion of the firs... | 10/24/2006 |
| 7117988 | Positive displacement sorter A positive displacement sorter includes a plurality of interconnected slats defining an endless web, an upper run of the web defining a conveying surface conveying articles in a longitudinal direction. A plurality of pusher shoes move along the slats to laterally di... | 10/10/2006 |
| 6471034 | Guide device for escalator step or moving walkway plate An escalator or moving walkway is provided with a guide device to maintain the positions of the steps or plates with respect to the escalator sides. A respective guide device is provided at each step side which guides the steps laterally in the horizontal... | 10/29/2002 |
| 6382388 | Passenger conveyer apparatus A passenger conveyer apparatus including a plurality of steps connected to each other in an endless loop, traveling on a forward path, a backward path and a pair of turning paths connecting between opposite ends of the forward path and the backward path. ... | 05/07/2002 |
| 6016902 | Upper rail for passenger conveyor A passenger conveyor provided with a drive motor, a drive sprocket coupled to a shaft of the drive motor, a drive terminal gear coaxially engaged to the drive sprocket, a step chain driven by meshing with the drive terminal gear, a step connected to the s... | 01/25/2000 |
| 5924544 | Terminal rail system for escalator A terminal rail system for an escalator includes an escalator step including a step front roller and a step rear roller, an upper guide rail for guiding the step front roller, a lower guide rail for guiding the step rear roller, a semicircular inner casin... | 07/20/1999 |
| 5899314 | Terminal rail for passenger conveyor A terminal rail for a passenger conveyor including an inner and outer guide rails is disclosed. According to the terminal rail, a portion on which the rear wheel roller is initially contacted with the outer guide rail includes a damper placed between an e... | 05/04/1999 |
| 5890578 | Terminal rail system for escalator The terminal rail system for an escalator includes a pair of terminal rails including a corresponding pair of curved portions thereof having identical curvatures therebetween, a curve start point of either of the terminal rails being displaced from that o... | 04/06/1999 |
| 5697486 | Device for the guidance of an endless belt for escalators or moving walkways A device for the guidance of an endless belt for escalators or moving walkways in an endless belt of an escalator or a moving walkway, the chain rollers are guided by way of a support rail having a running track and by way of a compensating rail having a ... | 12/16/1997 |
| 5553697 | Overlay for a passenger conveyor roller track An overlay for a passenger conveyor roller track extends over the joints between segments to provide the engagement surface for the roller track. The overlay separates the engagement surface from the joints between adjacent segments to minimize vibration ... | 09/10/1996 |
| 5351800 | Escalator step axle attachment assembly Escalator steps are attached to their step axles by means of C-shaped clamps which are pivotally mounted on the steps and rotatable thereon to clamping positions where they embrace and clamp the step axles to the steps. One end of the clamp is then bolted... | 10/04/1994 |
| 5325955 | Escalator step chain support apparatus An apparatus for supporting the step chain of an escalator having a frame with a first and a second landing, an inclined section attached therebetween, and roller tracks fixed thereto, is provided and includes a pair of arcuated ramps for supporting the s... | 07/05/1994 |
| 5293982 | Step chain plug-in axle A step chain is provided for a person conveying device having a first strand, a second strand, a plurality of connecting axles and an attachment apparatus for detachably attaching the connecting axles to the first and second strands.... | 03/15/1994 |
| 5170875 | Conveyor machine A conveyer machine which has a forward conveyer part and a backward conveyer part continuous therewith, and which is simple in construction, small in size, and light in weight, and which can be applied to various fields. A reciprocal escalator serving as ... | 12/15/1992 |
| 5161668 | Guide mechanism for passenger conveyors A guide mechanism for a passenger conveyor which includes a series of passenger platforms supported on and movable along a frame which has a support track for support rollers mounted on the platforms. The guide mechanism includes a monotrack guide rail, a... | 11/10/1992 |
| 5148906 | Curved escalator A circular escalator which compensates the different angle velocities of the inner and outer step edges in the transition and landing zones of the escalator to maintain the axis (29) of each step (21) exactly radial to the path of travel (1) so that dange... | 09/22/1992 |
| 5137135 | Escalator step chain roller The step chain rollers for an escalator or moving walkway are provided with an annular elastomeric tread mounted on the rim of the roller. The roller rim is formed with a recess or groove which receives the tread. The main body of the roller is metal, and... | 08/11/1992 |
| 5033606 | Conveyor having pivotally connected step units There is disclosed a conveyor for transporting passengers. The conveyor comprises numerous step units which are interconnected. The step units move along guide passages. Each step unit consists of a front portion and a rear portion. These two portions are... | 07/23/1991 |
| 4953686 | Balustrade for a transportation apparatus especially an escalator or a passenger walkway The balustrade for transportation apparatus, such as an escalator or a moving passenger walkway contains upright balustrade panels directly laterally guiding tread elements, such as steps or tread plates so as to dispense with both of the conventionally e... | 09/04/1990 |
| 4805763 | Passenger conveyor guide arrangement A passenger conveyor guide arrangement comprises a guide rail which supports and guides step rollers mounted on the conveyor steps and a fastener which includes a nut and a bolt having a threaded shank and a substantially rectangular head for fastening th... | 02/21/1989 |
| 4730717 | Curved escalator A curved escalator comprising a plurality of segment steps having step axles connected to an inner and an outer endless loop of step chains so that the steps circulate along the endless loops, and inner and outer sprocket wheels having different diameters... | 03/15/1988 |
| 4635783 | Person-conveying device Person-conveying device of quiet operating design having a step-belt or pallet belt which is guided in guide rails by transport chains with step-chain or pallet-chain rollers as well as chain-guide rollers, the points of contact of the step-chain or palle... | 01/13/1987 |
| 4576276 | Escalator An escalator having a conveyor constructed of rigid, pivotally interconnected toothed links, step axles, steps on the step axles, axle rollers on the axles, and step rollers on the steps. The guide arrangement for the conveyor includes a truss having axle... | 03/18/1986 |
| 4484674 | Guiding apparatus for the travel elements of endless conveyors, such as escalators and the like The guiding apparatus comprises substantially rectangular rail holders and L-shaped rail holders. Main and follower travel rails or tracks are supported by such rail holders and there are provided side plates at which there are mounted the rail holders, t... | 11/27/1984 |
| 4249649 | Escalator having yieldable primary and non-yieldable secondary transverse guide points on one side thereof An escalator including an endless belt and a plurality of steps attached thereto. The endless belt and steps are guided about a loop which includes load bearing and return runs for the steps, by guide wheels rotatably mounted on a common side of the endle... | 02/10/1981 |
| 4175653 | Man conveyor In a man conveyor, a framework includes, as main frame members, beams of a steel material in the form of a letter I or of other shape in cross section, and struts for supporting guide members for endless handrails are rigidly secured to upper edge portion... | 11/27/1979 |
| 4175652 | Escalator with step levelers An escalator comprising steps linked in an endless belt, front wheels and rear wheels for each of the steps supporting the step through a front shaft and a rear shaft respectively, guide rails for guiding the rolling movement of the front and rear wheels ... | 11/27/1979 |
| 4139092 | Conveyor having horizontally sustained carriages A conveyer system having a pair of spaced roller chains driven by chain wheels and having carriages disposed between the chains and pivotally coupled thereto by means of shafts. The carriages while normally maintaining horizontal positions, each include a... | 02/13/1979 |
