# US 8,782,959 B2 · Powered telescopic seating riser assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,782,959 B2 - Document ID: US8782959B2 - Status: Granted - Kind: B2 - Application number: 13/899,727 - Filed: 2013-05-22 - Published: 2013-11-21 - Granted: 2014-07-22 - Earliest claimed: 2006-10-04 - Assignees: Stageright Corporation - Applicants: Stageright Corporation - Inventors: Kenneth Edward Staten; Orley David Rogers - Web page: https://patentgrep.com/patent/US8782959B2 ## CPC - E04H 3/123: {Telescopic grandstands} - E04B 1/38: Connections for building structures in general - E04H 3/126: {Foldable, retractable or tiltable tribunes (E04H3/123 takes precedence)} - E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D) - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) ## Abstract A riser assembly according to an exemplary aspect of the present disclosure includes, among other things, a first skin. A second skin is spaced from the first skin. A core is disposed between the first skin and the second skin. A framework is disposed between the first skin and the second skin. A portion of the framework is positioned laterally outside the core. ## Claims ### Claim 1 A riser assembly comprising: a first skin; a second skin spaced from said first skin; a core disposed between said first skin and said second skin, said core including a plurality of subpanels; and a framework including a plurality of beams disposed between said first skin and said second skin, said core being received within a space defined by said framework, and a portion of said framework positioned laterally outside said core, each of said plurality of subpanels being received within one of a plurality of spaces defined by said framework, and said plurality of beams defining a perimeter about each of said subpanels, wherein said first skin, said second skin and said framework are configured to enclose said core, said first skin and said second skin being separate and distinct from said framework; and said framework comprising an upper framework and a lower framework, said upper and lower framework being spaced by a plurality of ribs, each of said plurality of ribs extending substantially between a front facing edge and a rear facing edge of one of said upper and lower frameworks. ### Claim 2 (depends on 1) The assembly as recited in claim 1, wherein said first skin includes a first material, said second skin includes a second material, and said core includes a third material different from first and second materials in composition. ### Claim 3 (depends on 2) The assembly as recited in claim 2, wherein said third material includes an end-grained balsawood. ### Claim 4 (depends on 1) The assembly as recited in claim 1, wherein said core comprises a honeycomb structure. ### Claim 5 (depends on 1) The assembly as recited in claim 1, comprising an access track beam arranged adjacent to said framework, said access track beam defining a longitudinal slot extending at least partially between each end of said access track beam, wherein said longitudinal slot is configured to selectively receive a mountable accessory. ### Claim 6 (depends on 1) The assembly as recited in claim 1, wherein each of said first and second skins is glued to said core. ### Claim 7 (depends on 1) The assembly as recited in claim 1, wherein each of said first and second skins is attached to said framework. ### Claim 8 (depends on 1) The assembly as recited in claim 1, wherein each of said first and second skins is welded to said framework. ### Claim 9 (depends on 1) The assembly as recited in claim 1, comprising: a deck surface; and an access track beam that is exposed, the access track beam defining a longitudinal slot together with said upper framework to receive a riser assembly accessory, and said lower framework extending below said access track beam and at least partially below said upper framework. ### Claim 10 (depends on 9) The assembly as recited in claim 9, wherein said deck surface includes a first skin. ### Claim 11 (depends on 9) The assembly as recited in claim 9, wherein said deck surface is a first deck surface and a second deck surface is positioned in a stepped arrangement relative to said first deck surface. ### Claim 12 (depends on 11) The assembly as recited in claim 11, wherein said first deck surface is attached to said second deck surface to minimize relative movement therebetween. ### Claim 13 (depends on 9) The assembly as recited in claim 9, wherein said deck surface is attached to said lower framework. ### Claim 14 (depends on 9) The assembly as recited in claim 9, wherein said access track beam is arranged adjacent to said upper and lower frameworks, said access track beam defining a longitudinal slot extending at least partially between each end of said access track beam. ### Claim 15 (depends on 14) The assembly as recited in claim 14, wherein a side of said access track beam is attached to said upper and lower frameworks. ### Claim 16 (depends on 14) The assembly as recited in claim 14, wherein said access track beam defines at least one flange extending inward from said longitudinal slot. ### Claim 17 (depends on 9) The assembly as recited in claim 9, wherein said riser assembly accessory is a chair beam mounting system secured to said access track beam. ### Claim 18 (depends on 9) The assembly as recited in claim 9, wherein said longitudinal slot is defined by a first channel formed in an upper surface of said access track beam and is also defined by a second channel formed in a lower surface of said upper framework. ### Claim 19 (depends on 9) The assembly as recited in claim 9, wherein said access track beam extends across and is attached to said plurality of ribs. ### Claim 20 (depends on 1) The assembly as recited in claim 1, wherein an accessory is selectively attached to a longitudinal slot defined by a forward facing access track beam that is positioned in a vertical relationship relative to a first deck panel, said longitudinal slot also defined by a framework of a second deck panel spaced vertically from said first deck panel. ### Claim 21 (depends on 1) The assembly as recited in claim 1, wherein each of said first and second skins has a substantially identical cross-section profile spanning said core and said framework. ### Claim 22 (depends on 1) The assembly as recited in claim 1, wherein said first skin, said second skin and said framework define a first deck surface, and said framework is configured to extend below a second deck surface vertically spaced from said first deck surface. ### Claim 23 (depends on 20) The method as recited in claim 20, wherein said longitudinal slot is defined by a first channel formed in an upper surface of said access track beam and is also defined by a second channel formed in a lower surface of said framework. ### Claim 24 (depends on 20) The method as recited in claim 20, wherein said longitudinal slot is a first longitudinal slot spaced from a second longitudinal slot also defined by said access track beam. ### Claim 25 (depends on 20) The method as recited in claim 20, wherein said access track beam is attached to said framework.