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US4912887A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable stage apparatus

Assignee: Individual
•
Filing: 1988-12-27
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Granted: 1990-04-03
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Expires: 2008-12-27
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Abstract

Abstract A portable stage apparatus which utilizes a plurality of open frame assemblies, each of which is constructed of a plurality of pivotally interconnected side panels. Each open frame assembly is mounted on wheels to facilitate movement from a collapsed position to an extended position. When in the extended position, a plurality of floor panels are to be mounted on the open frame assemblies with the floor panels being contiguous and the upper surface of the floor panels being in alignment. Adjoining floor panels are interlocked together with these floor panels also being locked to the open frame assemblies. For purposes of stowage and transportability, the open frame assemblies are connectable together in the collapsed position and readily movable onto a transporting vehicle. Also, a group of the floor panels are capable of being stowed together into a small space and mounted onto a storage dolly which is readily movable onto and off of a transporting vehicle.

Inventors

  • 👤 Brian J. Sullivan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 12:35
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/22; E04H3/24; E04H3/28

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 222 words
A portable stage apparatus comprising: an open frame assembly, said open frame assembly comprising a plurality of side panels, each said side panel being narrow and substantially planar defining a main plane, each said side panel being of a polygonal configuration within said main plane, each said side panel having a bottom edge and a top edge each of which are connected between a pair of said edges, said side panels being hingedly connected together at said side edges, said open frame assembly being movable between a stowage position and a use position, said stowage position being when all said side panels are located in juxtaposition, said use position being when said side panels are extended and connected together in an enclosing arrangement defining an enclosed area; a plurality of floor panels, said floor panels being mounted on said top edges of said side panels when said open frame assembly is in said use position, said floor panels being separate from each other and disconnected from said open frame assembly when said open frame assembly is in said stowage position, each said floor panel having a substantially flat upper surface; and first locking means for securing together to a said side panel a pair of said floor panels located in an edge abutting relationship with said upper surfaces being in horizontal alignment.
Claim 2
Dependent Claim 222 words
A portable stage apparatus comprising: an open frame assembly, said open frame assembly comprising a plurality of side panels, each said side panel being narrow and substantially planar defining a main plane, each said side panel being of a polygonal configuration within said main plane, each said side panel having a bottom edge and a top edge each of which are connected between a pair of said edges, said side panels being hingedly connected together at said side edges, said open frame assembly being movable between a stowage position and a use position, said stowage position being when all said side panels are located in juxtaposition, said use position being when said side panels are extended and connected together in an enclosing arrangement defining an enclosed area; a plurality of floor panels, said floor panels being mounted on said top edges of said side panels when said open frame assembly is in said use position, said floor panels being separate from each other and disconnected from said open frame assembly when said open frame assembly is in said stowage position, each said floor panel having a substantially flat upper surface; and first locking means for securing together to a said side panel a pair of said floor panels located in an edge abutting relationship with said upper surfaces being in horizontal alignment.
Claim 3
Dependent Claim 44 words
The portable stage apparatus as defined in claim 1 wherein: each said side panel including a plurality of wheels, said wheels being mounted on said bottom edge, said wheels being for the purpose of low-frictional movement of said side panels on a supporting surface.
Claim 4
Dependent Claim 39 words
The portable stage apparatus as defined in claim 1 wherein: with said open frame assembly in said stowage position there being utilized a securing means to connect together said side panels and hold such in the connected together position.
Claim 5
Dependent Claim 17 words
The portable stage apparatus as defined in claim 1 wherein: each of said floor panels being identical.
Claim 6
Dependent Claim 20 words
The portable stage apparatus as defined in claim 1 wherein: a second locking means for securing together said floor panels.
Claim 7
Dependent Claim 91 words
The portable stage apparatus as defined in claim 1 wherein: each said floor panel having an undersurface, a plurality of longitudinal brace members being fixedly mounted on said undersurface, said brace members being located in a spaced apart parallel arrangement, spacing of said brace members being such that upon the undersurfaces of a pair of said floor panels being placed together with the edges of said floor panels being in alignment that said brace members of both said floor panels are in direct alignment and will not interfere with one another.
Claim 8
Dependent Claim 32 words
The portable stage apparatus as defined in claim 1 wherein: a separate wheeled dolly, said floor panels to be located on said separate wheeled dolly during movement from one locale to another.
Claim 9
Dependent Claim 204 words
A portable stage apparatus comprising: an open frame assembly, said open frame assembly comprising a plurality of side panels, each said side panel being narrow and substantially planar defining a main plane, each said side panel being of a polygonal configuration within said main plane, each said side panel having a bottom edge and a top edge each of which are connected between a pair of side edges, said side panels being hingedly connected together at said side edges, said open frame assembly being movable between a stowage position and a use position, said stowage position being when said side panels are located in juxtaposition, said use position being when said side panels are extended defining an enclosed area; a plurality of floor panels, said floor panels being mounted on said top edges of said side panels, each said floor panel having a substantially flat upper surface; first locking means for securing together to a said side panel a pair of said floor panels located in an edge abutting relationship with said upper surfaces being in horizontal alignment; and said first locking means comprising a pin, said pin to connect with aligned openings formed between a said floor panel and a said side panel.
Claim 10
Dependent Claim 204 words
A portable stage apparatus comprising: an open frame assembly, said open frame assembly comprising a plurality of side panels, each said side panel being narrow and substantially planar defining a main plane, each said side panel being of a polygonal configuration within said main plane, each said side panel having a bottom edge and a top edge each of which are connected between a pair of side edges, said side panels being hingedly connected together at said side edges, said open frame assembly being movable between a stowage position and a use position, said stowage position being when said side panels are located in juxtaposition, said use position being when said side panels are extended defining an enclosed area; a plurality of floor panels, said floor panels being mounted on said top edges of said side panels, each said floor panel having a substantially flat upper surface; first locking means for securing together to a said side panel a pair of said floor panels located in an edge abutting relationship with said upper surfaces being in horizontal alignment; and said first locking means comprising a pin, said pin to connect with aligned openings formed between a said floor panel and a said side panel.
Claim 11
Dependent Claim 54 words
The portable stage apparatus as defined in claim 8 wherein: each said side panel including a pin retainer associated with each said first locking means, said pin to be movable to connect with said pin retainer when said pin is in the position securing together a said floor panel to a said side panel.
Claim 12
Dependent Claim 325 words
A portable stage apparatus comprising: an open frame assembly, said open frame assembly comprising a plurality of side panels, each said side panel being narrow and substantially planar defining a main plane, each said side panel being of a polygonal configuration within said main plane, each said side panel having a bottom edge and a top edge each of which are connected between a pair of side edges, said side panels being hingedly connected together at said side edges, said open frame assembly being movable between a stowage position and a use position, said stowage position being when said side panels are located in juxtaposition, said use position being when said side panels are extended defining an enclosed area; a plurality of floor panels, said floor panels being mounted on said top edges of said side panels, each said floor panel having a substantially flat upper surface; first locking means for securing together to a said side panel a pair of said floor panels located in an edge abutting relationship with said upper surfaces being in horizontal alignment; each said floor panel having an undersurface, a plurality of longitudinal brace members being mounted on said undersurface, said brace members being located in a spaced apart parallel arrangement, spacing of said brace members being such that upon the undersurfaces of a pair of said floor panels being placed together with the edges of said floor panels being in alignment that said brace members of both said floor panels will not interfere with one another and be located in an alternating aligned arrangement; and each said brace member having a pair of ends, each said end of each said brace member being chamfered, with a pair of said floor panels being connected together with said flat upper surfaces in alignment therebeing created a gap area between aligned brace members of one said floor panels, a said first locking means to be located within a said gap area.
Claim 13
Dependent Claim 325 words
A portable stage apparatus comprising: an open frame assembly, said open frame assembly comprising a plurality of side panels, each said side panel being narrow and substantially planar defining a main plane, each said side panel being of a polygonal configuration within said main plane, each said side panel having a bottom edge and a top edge each of which are connected between a pair of side edges, said side panels being hingedly connected together at said side edges, said open frame assembly being movable between a stowage position and a use position, said stowage position being when said side panels are located in juxtaposition, said use position being when said side panels are extended defining an enclosed area; a plurality of floor panels, said floor panels being mounted on said top edges of said side panels, each said floor panel having a substantially flat upper surface; first locking means for securing together to a said side panel a pair of said floor panels located in an edge abutting relationship with said upper surfaces being in horizontal alignment; each said floor panel having an undersurface, a plurality of longitudinal brace members being mounted on said undersurface, said brace members being located in a spaced apart parallel arrangement, spacing of said brace members being such that upon the undersurfaces of a pair of said floor panels being placed together with the edges of said floor panels being in alignment that said brace members of both said floor panels will not interfere with one another and be located in an alternating aligned arrangement; and each said brace member having a pair of ends, each said end of each said brace member being chamfered, with a pair of said floor panels being connected together with said flat upper surfaces in alignment therebeing created a gap area between aligned brace members of one said floor panels, a said first locking means to be located within a said gap area.
Claim 14
Dependent Claim 35 words
The portable stage apparatus as defined in claim 7 wherein: said first locking means comprising a pin, said pin to connect with aligned openings formed between a said floor panel and a said side panel.
Claim 15
Dependent Claim 54 words
The portable stage apparatus as defined in claim 11 wherein: each said side panel including a pin retainer associated with each said first locking means, said pin to be movable to connect with said pin retainer when said pin is in the position securing together a said floor panel to a said side panel.
Claim 16
Dependent Claim 19 words
The portable stage apparatus as defined in claim wherein: a second locking means for securing together said floor panels.
Claim 17
Dependent Claim 44 words
The portable stage apparatus as defined in claim 13 wherein: each said side panel including a plurality of wheels, said wheels being mounted on said bottom edge, said wheels being for the purpose of low-frictional movement of said side panels on a supporting surface.
Claim 18
Dependent Claim 39 words
The portable stage apparatus as defined in claim 14 wherein: with said open frame assembly in said stowage position there being utilized a securing means to connect together said side panels and hold such in the connected together position.

References Cited (Backward Citations)

US3091816A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-04-02 1993-10-02 1994-04-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-04-02 1997-10-02 1998-04-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-04-02 2001-10-02 2002-04-03 $7700.00 Window Closed / Lapsed

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