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US 5,491,584 AGranted
Pivotal, large area cinematographic screen for open-air performances
AssigneeCinerent Open Air AG
InventorAlbert Schlienger
Life of this patent
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AssigneeCinerent Open Air AG
InventorAlbert Schlienger
Estimating the term…
The projection wall comprises a screen section carrying the screen and resting on two supports. The screen section can be pivoted by means of hydraulic drives about a first horizontal axis in both directions of rotation. The supports can be folded about a second horizontal axis by actuating hydraulic braces. Since the screen section can be pivoted in both directions, it is possible to yield to winds coming from the front and the back side. Furthermore, the projection wall can be moved to a horizontal position for assembly and disassembly. The device is easy to install and requires no anchoring.
A projection wall, especially for open air cinemas, comprising a substantially rigid screen section, said screen section being pivotally supported by pivoting means for pivoting said screen section from a substantially vertical operating position into a forward and a backward direction about a horizontal pivot axis, said screen section comprising a screen frame and a screen surface, said screen surface being held by said screen frame, wherein said screen frame comprises a single torque absorbing traverse.
A projection wall, especially for open air cinemas, comprising a substantially rigid screen section, said screen section being pivotally supported by pivoting means for pivoting said screen section from a substantially vertical operating position into a forward and a backward direction about a horizontal pivot axis, and a pivoting drive acting directly on said pivot axis.
A projection wall, especially for open air cinemas, comprising a substantially rigid screen section, said screen section being pivotally supported by pivoting means for pivoting said screen section from a substantially vertical operating position into a forward and a backward direction about a horizontal pivot axis, at least one support means for supporting said screen section in said pivot axis, each support means comprising an upper support means and a lower support means, said upper support means being connected to said screen section at said pivot axis and being pivotal in respect to said lower support about a support axis, said support axis being parallel to said pivot axis.
Dependencies are inferred from the claim text.
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Accessories: projection screens
Apparatus or arrangements for taking photographs or for projecting or viewing them
Term ended 16 Jun 2014 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
1. Field of the Invention
The invention relates to a projection wall for open-air cinemas.
2. Description of the Prior Art
The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings, wherein:
FIG. 1 is a view of the preferred embodiment of the invention in its operating position;
FIG. 2 is a view of the screen of FIG. 1 in its forward horizontal position;
The basic setup of the preferred embodiment of the projection wall can be seen in FIG. 1. This figure shows a large area screen having a surface of e.g. 400 square meters.
The projection wall consists substantially of a screen section 1 and two lateral supports 2 and 2'. The screen section comprises a rigid screen frame, which carries the screen 3. The screen section 1 is pivotal about a pivot axis 4.
Each support 2 and 2' has a lower support member 5, an upper support member 6 and a bracing element 7. The upper support member 6 is can be pivoted about the support axis 8.