Patent US4026076A successfully refreshed from Google Patents.
US4026076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable stage
Assignee: Individual
•
Filing: 1976-08-25
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Granted: 1977-05-31
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Expires: 1996-08-25
Abstract
Abstract A portable stage has supporting structure extending lengthwise of a trailer dimensioned for highway travel and provided with a central turntable and tracks leading therefrom to both ends of the trailer. Each of a series of joists has a carriage and the turntable is dimensioned to enable all the carriage to be stored thereon side by side. In a first position of the turntable, the joists extend lengthwise of the trailer and in a second position, the joists extend transversely thereof and the carriage is thus positioned to travel along the tracks and be spaced therealong to enable floor members to be detachably attached thereto.
Inventors
- 👤 Joseph Analetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:30
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/22; E04H3/24; E04H3/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
148 words
A transportable stage comprising a vehicle dimensioned for highway travel and provided with framework extending lengthwise thereof, a turntable supported by said framework located between the ends thereof, tracks extending from said turntable towards both ends of the framework and supported thereby, a series of joists of a length greater than the width of the vehicle, each joist including a carriage adapted to travel along said tracks, and said turntable including carriage storage means dimensioned to accommodate all of said carriages side-by-side, said turntable having first and second positions of use in the first of which said joists when on the turntable are lengthwise of the vehicle and in the second of which said joists are transversely thereof, said carriages then positioned for engagement with and movable along said tracks, some forwardly and some rearwardly of said turntable into predetermined positions and floor units supported by said joists.
Claim 2
Dependent Claim
148 words
A transportable stage comprising a vehicle dimensioned for highway travel and provided with framework extending lengthwise thereof, a turntable supported by said framework located between the ends thereof, tracks extending from said turntable towards both ends of the framework and supported thereby, a series of joists of a length greater than the width of the vehicle, each joist including a carriage adapted to travel along said tracks, and said turntable including carriage storage means dimensioned to accommodate all of said carriages side-by-side, said turntable having first and second positions of use in the first of which said joists when on the turntable are lengthwise of the vehicle and in the second of which said joists are transversely thereof, said carriages then positioned for engagement with and movable along said tracks, some forwardly and some rearwardly of said turntable into predetermined positions and floor units supported by said joists.
Claim 3
Dependent Claim
29 words
The transportable stage of claim 1 in which the carriage storage means of the turntable is a track arrangement matching the tracks leading to the ends of the framework.
Claim 4
Dependent Claim
47 words
The transportable stage of claim 1 in which there are two tracks leading from the turntable towards each end of the framework and the carriage storage means of the turntable is in the form of two tracks spaced and dimensioned for alignment with the framework supported tracks.
Claim 5
Dependent Claim
37 words
The transportable stage of claim 3 in which each track includes a pair of channel portions disposed with the channels opening towards each other and each carriage includes a plurality of supporting rollers protruding into the channels.
Claim 6
Dependent Claim
52 words
The transportable stage of claim 4 in which each joist includes upper and lower beams and bracing interconnecting said beams, the length of said carriage greater than the width of said joist, and braces mounted on at least one end of said carriage and connected to the upper part of the joist.
Claim 7
Dependent Claim
43 words
The transportable stage of claim 5 in which there are two upper beams, each a channel, the channels opening in opposite directions in the same horizontal plane, and the floor units are slidably supported by the proximate channels of a pair of joists.
Claim 8
Dependent Claim
39 words
The transportable stage of claim 1 in which each joist includes a pair of channels opening in opposite directions in the same plane and each floor unit is slidably supported by the proximate channels of a pair of joists.
Claim 9
Dependent Claim
28 words
The transportable stage of claim 1 and means to lock each joist to each framework when disposed transversely of the framework and in a predetermined position lengthwise thereof.
Claim 10
Dependent Claim
30 words
The transportable stage of claim 1 in which each joist has a camber such that it does not engage the framework until disposed transversely thereof and placed under a load.
Claim 11
Dependent Claim
42 words
The transportable stage of claim 9 and means to support the ends of a joist when disposed transversely of the framework, each joist including oppositely disposed transverse flanges along its bottom and the supporting means includes a holder slidably receiving said flanges.
Claim 12
Dependent Claim
36 words
The transportable stage of claim 7 in which each floor unit includes a surface layer and reinforcement therefor including two corrugated metal sheets, the corrugations of one disposed at right angles to those of the other.
Claim 13
Dependent Claim
61 words
The transportable stage of claim 1 in which the turntable includes a bottom plate, a circular top plate, supporting structure for said bottom plate including a beam underlying the center of said top plate, a pivotal connection between said plates and said underlying beam, and a circular retaining flange mounted on said structure and overlying the margin of said top plate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |