Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7900402 | Powered dual level telescopic seating riser assembly A telescopic seating system generally includes an innermost lower riser assembly and successive outer elevated riser assemblies. Each elevated riser assembly includes a dual deck surface and a telescopic leg assembly. Each elevated riser assembly supports a toothed ... | 03/08/2011 |
| 7814708 | Portable riser apparatus having a lifting and locking assembly There is provided a portable riser having an operator actuated lifting assist assembly operatively coupled to a riser deck. In one aspect, there is a first pivot mechanism coupled to a first support leg and adapted to initiate upward movement of the portable riser f... | 10/19/2010 |
| 7546705 | Portable riser apparatus having a lifting and locking assembly There is provided a portable riser having an operator actuated lifting assist assembly operatively coupled to a riser deck. In one aspect, there is a first pivot mechanism coupled to a first support leg and adapted to initiate upward movement of the portable riser f... | 06/16/2009 |
| 7303235 | Chair for venues with tiered seating A chair that can be mounted to a bleacher comprises a dual-pivot structure to enable movement of a seat between an up position, wherein the seat compactly fits within the bleacher envelope, and a down position, wherein the seat is substantially aligned with the blea... | 12/04/2007 |
| 7195486 | Reconfigurable simulation structure A simulator structure with a deck for mounting various components including controls, one or two seats, an instrument panel and an image projector. The components are mounted to the deck using suitable fasteners, such as bolts and nuts. The image projector displays ... | 03/27/2007 |
| 7172245 | Removable seats system A removable seats system includes a number of vertically movable platforms supported by a platform support and displacement device which engages the platforms and which positions the platforms in a horizontally successively spaced configuration defining a gap betwee... | 02/06/2007 |
| 7131522 | Stair lift system A stairs lift system capable of converting stairs climbing operation into a walking movement along a horizontal plane. The system comprises an existing substrate, flight of stairs, and a second, overlying layer of stairs. Each one of the overlying stairs comprises a... | 11/07/2006 |
| 7077360 | Passenger sitting/sleeping arrangement In accordance with the present invention, there is provided a passenger accommodation arrangement for aircraft which provides both a highly efficient use of available aircraft space and a high level of comfort for passengers. In particular, the novel arrangement all... | 07/18/2006 |
| 7007428 | Vertical telescopic stage accessories device A device having multiple support members telescopically contained therein, with each member having a set of lights, a set of curtains and various compartments for numerous stage accessories and allows for quick change of the lights and curtains that are used for dif... | 03/07/2006 |
| 6694677 | Transportable podium The invention relates to a transportable podium (1) with step elements (2) which in an operating position of the podium (1) have different heights above a floor (6). To facilitate the assembly and disassembly of a mobile podium (1) the invention provides ... | 02/24/2004 |
| 6625932 | Variable rise vertically retractable arena seating assembly The invention in the simplest form is a retractable variable rise arena seating apparatus and method. It employs gravity displacement to facilitate adjusting and setting the various platforms, and uses a single drive motor assembly. The seating platforms ... | 09/30/2003 |
| 6601358 | Floor for housing and supporting exercise equipment An equipped floor having at least one cavity opening outwards and for housing at least one exercise fixture.... | 08/05/2003 |
| 6591554 | Floor mounted flush folding device A device, which may be placed in a floor such that the floor remains flush in the situation where the device is raised above the level of the floor or where the device is folded into the floor, is described herein.... | 07/15/2003 |
| 6474024 | Variable riser seating system The seating section of a seating system is variable in slope between high riser and low riser positions forward ends of the pivotable treads forming a deck surface overlap confronting ends of adjacent treads, and lever arms maintain the treads substantial... | 11/05/2002 |
| 6415551 | Non friction direct drive powered telescoping bleacher seating system A non friction motor driven telescoping row based seating system having a direct drive motor apparatus for engaging a drum which winds and unwinds interconnected drive carriages on said drum to provide telescoping and retraction movement to the seating sy... | 07/09/2002 |
| 6293053 | Non friction direct drive power system The present invention relates to a power system for extending and retracting a telescopic row seating system, comprising a drum operably anchored to a drum frame, wherein a drum has at least two drum shafts rotatably engaged thereto. Further, it includes ... | 09/25/2001 |
| 6286264 | Horizontally slidable sports field A sports field, in particular for team sports such as football, has a playing field (20) which consists of a overing made of grass, granulates or other natural and/or artificial materials, placed on an infrastructure (21), in particular made of earth and/... | 09/11/2001 |
| 6199325 | Power system for extending and retracting a structure A power system is provided for extending and retracting a telescopic seating structure. The power system includes a frame, a drum operably mounted on the frame for rotational movement, and a plurality of slidably interconnected telescoping members having ... | 03/13/2001 |
| 6055780 | Retractable stairs-like stand A retractable stairs-like stand has rows of seats on moveable floor-bases arranged in a stair-like manner for use in an auditorium or stadium-like application. A variety of seating styles can be accommodated due to the retracted storage position used wher... | 05/02/2000 |
| 6003270 | Variable riser seating system A seating system having a plurality of seating sections in which the slope of the understructure thereof can be varied, the treads of the seating sections being pivotable to permit the riser height to vary so as to enable a single seating system to provid... | 12/21/1999 |
| 6000174 | Retractable stairs-like stand A retractable, stairs-like stand includes plural steps of floor-bases which are moved horizontally between the advanced position where the floor-bases are mutually shifted into a form of stairs and the retracted position where the floor-bases are mutually... | 12/14/1999 |
| 5979125 | Foldable and mobile steps or bleachers structure A system of grandstand with foldable bleachers, comprises an under-frame (1) mounted on wheels (2) and supporting a central horizontal floor (3). The floor (3) is provided with upright elements (8, 9), upon which are externally mounted, around horizontal ... | 11/09/1999 |
| 5921032 | Convertible sports and exhibition facility and conversion method A convertible sports and exhibition facility includes stadium and arena configurations. Playing fields or surfaces are provided for both the stadium and arena configurations, with at least a portion of the stadium playing field being removable to provide ... | 07/13/1999 |
| 5913776 | Variable-slope tier devices allowing the configuration of a sports stadium or auditorium to be changed Devices for changing the slope of rows of tiers, whose bearing structures are definitively or temporarily fast, by a single elevating operation. The devices include tiers whose bearing supports are constituted by first long columns and second short column... | 06/22/1999 |
| 5829201 | Theater with seat and wheelchair platform movement An amusement attraction has a theater with an audience seating area. The audience seating area faces a projection screen and a film presentation is projected onto the projection screen. The audience seating area contains seats that are arranged in rows. T... | 11/03/1998 |
| 5819475 | Turning up and down apparatus for telescopic tiered spectator's seats To provide a turning up and down apparatus for telescopic tiered spectator's seats capable of preventing the foot members of a chair from being turned down forward, a turning up and down apparatus for telescopic tiered spectator's seats of the present inv... | 10/13/1998 |
| 5802773 | Handicap accessible stair A stair which has independent, infinitely variable height steps. The steps collectively form a platform for raising or lowering an individual and return to form a configuration of a stair.... | 09/08/1998 |
| 5794383 | Reconfigurable seating system for multi-purpose stadium A multi-purpose stadium includes a seating system which is reconfigurable between seating configurations corresponding to different playing fields, for example, football and baseball. Reconfiguration of the seating system is accomplished by removing remov... | 08/18/1998 |
| 5765314 | Sensory interactive multi media entertainment theater This invention relates to a sensory interactive multi media entertainment theater for presenting innovative, sensory oriented interactive productions combining live theater and motion picture technology in a 360° visual effects theater building. The pres... | 06/16/1998 |
| 5689917 | Vertically movable stage assembly A circular stage platform capable of accommodating one to four dancers is cyclically, vertically reciprocable, a distance of about three feet within a cage which encloses the dancers, the latter remaining visible to the spectators. The system is used in n... | 11/25/1997 |
| 5660000 | Movable two-fold seating assembly A movable two-fold seating assembly includes an upright support structure, a forward seating section pivoted to the support structure, and a rearward seating section pivoted to the structure. Forward and rearward frame structures are pivoted to the free e... | 08/26/1997 |
| 5559411 | Nonfriction power system for extending/retracting a structure A power system is provided for extending and retracting telescopic seating. The power system includes a frame, a drum operably mounted on the frame for rotational and translational movement, and an extendable chain having a first end operably attached to ... | 09/24/1996 |
| 5517789 | Variable floor height telescopic multi-staged spectator seating system To assure that each spectator sitting on his seat enjoys a performance in a theater or the like at his desired height, a floor height adjusting mechanism is mounted on each of a plurality of movable platforms constituting a variable floor height telescopi... | 05/21/1996 |
| 5517091 | Modular electrical system for device units A modular electrical system (10) supplies power to and controls a plurality of electric motors (M1, M2, M3, M4) associated with a plurality of drive units folding or extending rows in a telescopic seating system... | 05/14/1996 |
| 5467840 | Drive unit for movement of telescopic seating system A drive unit (10) is provided for extending or retracting a telescopic seating system and includes a frame (14) into which a front axle (24) and a rear axle (26) are journaled, a plurality of transversely spaced wheels (28) mounted on the front axle (24) ... | 11/21/1995 |
| 5374878 | Modular electrical system for drive units A modular electrical system (10) supplies power to and controls a plurality of electric motors (M1, M2, M3, M4) associated with a plurality of drive units folding or extending rows in a telescopic seating system... | 12/20/1994 |
| 5277001 | Multiple configuration grandstand seating system A telescopic grandstand is provided including a central support structure and two sets of interconnected telescopic grandstand seating tiers. One set of tiers is located adjacent one side of the support for telescopic movement between a closed position ad... | 01/11/1994 |
| 5271190 | Apparatus for opening and closing covering means for furniture raising/lowering type floor equipment An apparatus for opening and closing covering means for a furniture raising/lowering type floor equipment employable for a building such as a hall, a theater, a gymnasium or the like wherein the covering means in the form of a rigid cover plate is accommo... | 12/21/1993 |
| 5245799 | Apparatus for opening and closing covering means for furniture raising/lowering type floor equipment An apparatus for opening and closing covering means for a furniture raising/lowering type floor equipment employable for a building such as a hall, a theater, a gymnasium or the like wherein the covering means in the form of a rigid cover plate is accommo... | 09/21/1993 |
| 5069006 | Electrically-operated folding stage system An electrically-operated folding stage system which embodies the invention in one preferred form comprises (a) a stage body with (i) a platform, (ii) plural rows of upright legs pivotally connected to a bottom of the platform, and (iii) plural connecting ... | 12/03/1991 |
