Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 8184369 | Screen unit A screen unit includes: a screen having a first side, a second side, and a pair of crossing sides which cross the first side and the second side; a winding shaft holding the first side and functioning as a shaft around which the screen is wound; a supporting portion... | 05/22/2012 |
| 8169702 | Screen unit A screen unit includes: a screen member; a first support member which supports one end of the screen member; a second support member which supports the other end of the screen member; a stretching and contracting device which expands the screen member; and a tension... | 05/01/2012 |
| 8159745 | Portable screen assembly and expanding and contracting column and handing tool used therefor A portable screen assembly is small, light and easy to handle and enables easy extension and contraction of a column stretching a screen. The column has at least a first cylindrical body, a second cylindrical body, and a third cylindrical body, wherein the first cyl... | 04/17/2012 |
| 8120846 | Projector screen equipped with means for applying vertical and horizontal tensile forces A projection screen (1) has a projection surface (2), support elements (4) for supporting the projection surface in the suspended state, elements for exerting vertical traction forces (FV) including elements (5) for weighting the bottom l... | 02/21/2012 |
| 8107166 | Cabinet projection screen with automatic cover-lifting function A cabinet projection screen with an automatic cover-lifting function is provided, which includes a cabinet body (1). A cover-lifting mechanism (2) is disposed on the cabinet body (1). The cover-lifting mechanism (2) includes a cover plate... | 01/31/2012 |
| 8031400 | Retractable frame of projection screen The present invention relates to a retractable frame of projection screen comprises, a receiving case; a cylinder; a supporting arm; a main retractable arm; and an upper support; when folding, the upper support is downwardly pressed, then the cylinder retractable ar... | 10/04/2011 |
| 8023187 | Cabinet projection screen with automatic push-pull structural function A cabinet projection screen with an automatic push-pull structural function is provided, which includes a cabinet body (1). A screen push-pull base (13) is disposed on the cabinet body (1) through sliding rails (2, 4, 10, and 11). ... | 09/20/2011 |
| 7995274 | Electric projector screen An electric projector screen is revealed. A linkage member is sleeved in a winding tube in a fixed seat and a locator is fixed on the winding tube. An interlock pipe mounted with a connection part therein is arranged between the linkage member and the locator. The i... | 08/09/2011 |
| 7911695 | Reflex-type screen, screen apparatus, and sheet-like article The present invention provides a reflex-type screen which is wound up by a winding shaft to be retracted and is unwound from the winding shaft in use. The reflex-type screen comprises a reflection layer which reflects an incident light, a transparent surface protect... | 03/22/2011 |
| 7907337 | Display device having an extendible screen A display device (1) has an extendible screen (2) and at least one extendible side member (3). The extendible screen (2) is extendible in an extension direction from a relatively compact form to an extended form. The screen (2) in ... | 03/15/2011 |
| 7872802 | Reinforced retractable projection screen with a tab tensioning system and a border Various embodiments of this invention disclose a retractable projection screen with a tab tensioning system, a textured textile border that is made from a different material as the screen, an adjustable coupling means, and a metal strip. ... | 01/18/2011 |
| 7864421 | Symmetrical projection screen Disclosed herein is a symmetrical projection screen. The screen includes a front screen member and a rear screen member. The front and rear screen members are made of a hard material, such as metal, or a hard film. Between the front and rear screen members is dispos... | 01/04/2011 |
| 7830600 | Electric roll-up limit detection device An electric roll-up limit device includes a tube coupled by a tube rotor to an electric motor. The tube rotor contains a rocker bar that extends from the tube and activates a lower limit switch when a sheet of material is fully unrolled from the tube. A base below t... | 11/09/2010 |
| 7782531 | Portable projector screen assembly A portable projector screen assembly includes a roller, two cylinders slidably connected to two ends of the roller respectively, a collapsible member connected to the roller, and a screen. The collapsible member includes a plurality of interconnected pieces. Two fre... | 08/24/2010 |
| 7706067 | Decelerating and locking mechanism for a projection screen and the manually operated projection screen using the mechanism The present invention provides a manually operated projection screen having a decelerating and locking mechanism which intergrates a decelerating mechanism and a locking mechanism as a whole. The decelerating and locking mechanism for a projection screen includes a ... | 04/27/2010 |
| 7515338 | Method for operating a motorized screen The method applies to a motorized screen device comprising a screen windable on a winding tube, and at least one means for latching the free end of the screen defining a position termed latched in the direction of winding, the latching being activated in this direct... | 04/07/2009 |
| 7489444 | Portable front projection screen assemblies with flexible screens Portable projection screen assemblies include a case comprising a flexible projector screen held on a roller, the screen has a high ARR and a high-gain and can be adapted for use in uncontrolled indoor ambient lighting conditions. The case is configured with releasa... | 02/10/2009 |
| 7489443 | Roll-up projection screen The front projection screen comprises firstly a support layer of substantially black color suitable for rolling onto a roll-up tube, and a weight at its bottom edge, and secondly a projection surface that is substantially white or pale gray, being smaller in size th... | 02/10/2009 |
| 7440187 | Portable screen device A portable screen assembly includes: a casing having an opening extending in a longitudinal direction on the upper surface thereof, and formed by a pair of separable case members that extend in the longitudinal direction; a spring-biased roll rotatably mounted in th... | 10/21/2008 |
| 7426077 | Portable screen device A portable screen device including a casing, an extendable screen, and an extendable screen supporting column which has one end pivotally supported at a center portion of a back surface of the casing. The column can be pivoted to an extended position for holding the... | 09/16/2008 |
| 7405876 | Portable screen device with dual shaft structure A portable screen device having a dual shaft structure is disclosed. A left and a right rotation shafts are installed to an upper rod and the center of a lower frame of a screen in the horizontal direction and are connected to a left and a right supports. The rotati... | 07/29/2008 |
| 7400499 | System and method for mechanically fastened information handling system foot A support foot is mechanically fastened to an information handling system chassis with a coupling device partially embedded in the support foot through injection molding of the support foot over the coupling device. For instance the coupling device is a staple made ... | 07/15/2008 |
| 7397603 | Deployable projection screen Embodiments of apparatuses, methods and systems for deployable projection screens are generally described herein. Other embodiments may be described and claimed. ... | 07/08/2008 |
| 7367682 | Color image projection arrangement and method A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. | 05/06/2008 |
| 7357512 | Color image projection system and method An image projection system projects an image on a projection screen having a phosphor for converting incident violet light into green light which, together with red and blue light, creates the image in full color. The screen includes an apertured mask having apertur... | 04/15/2008 |
| 7337567 | Retractable banner stand with curvature means A retractable banner stand has a banner, a support base, a mast, a retracting mechanism, and a means for imparting a curvature in the horizontal plane on the banner. Typically a cross member will be provided for supporting the banner in an extended upright position ... | 03/04/2008 |
| 7327516 | Mobile screen storage compartment (MSSC) A mobile screen storage compartment that stores a video display screen and is attached to one side of a truck trailer. The screen is extended, retracted and held in place using hydraulic lift devices and stabilizing devices stored in the compartment along with the d... | 02/05/2008 |
| 7324277 | Both-side image film screen Disclosed is a double-sided image film screen including a plastic material having a high optical transmission property and a light-refracting material, made of silica, having an optical transmission property and a refractivity of 1.4˜2.5, wherein a content and a pa... | 01/29/2008 |
| 7316257 | Portable screen assembly A portable screen assembly which is easily assembled and highly compact when disassembled is provided. The assembly includes a collapsible base having at least three leg members and a central support pole. The assembly includes top and bottom frame members in parall... | 01/08/2008 |
| 7314281 | Projection display device A projection display device having a plurality of transmission screens, each having an image display portion of different dimension, and each having light transmissivity and being provided with a back surface layer having optical directivity on a back surface side; ... | 01/01/2008 |
| 7314079 | Sunshade system having blind sheet A rotatable rod includes a plurality of cylindrical center rods and a plurality of joints. Each joint connects between corresponding two of the plurality of center rods. Each of opposed ends of each center rod has at least one engaging projection, which projects fro... | 01/01/2008 |
| 7299849 | Garage door, screen storing system The present invention provides a garage door screen storing system that is adapted for permanent mounting onto the exterior wall above a garage door. An aluminum steel cabinet with several advantages, including an electric moter being the power source that propels t... | 11/27/2007 |
| 7281561 | Multi-layered film window system A high R-rating window assembly storing multiple, reciprocating reflective flexible film layers in a sealed housing between rigid (e.g. glazed) layers. The glazed layers are separated on the order of 3 to 5-inches and are secured to low thermal conductivity framewor... | 10/16/2007 |
| 7274509 | Wall roll-up screen The device relates to a wall roll-up screen of which the upper and the lower are attached with the upper short rod and the lower short rod, respectively, wherein the screen is constituted to be rolled up when not in use and to be unrolled when used, by the lower sho... | 09/25/2007 |
| 7262911 | Reflex-type screen assembly A reflex-type screen includes a base which has saw-tooth appearance, and an optical absorption layer on one edge of each saw-tooth of the base. The base consists of white resin and includes a plurality of projector side inclined planes and non-projector side incline... | 08/28/2007 |
| 7259801 | Large-panel table-top rear projection television A table-top rear projection television employs a single large-panel (e.g., 7 inch-15 inch, 17.5 cm-38 cm, diagonal), multi-color transmissive imaging device (e.g., an amorphous silicon liquid crystal display). The rear projection television has a cabinet with a pede... | 08/21/2007 |
| 7203000 | Self-contained manual lifting screen It is an object of the present invention to provide a self-standing manually operated elevating screen which makes it possible to raise and lower the screen over a long period of time without encountering any trouble such as damage, deformation or the like, and whic... | 04/10/2007 |
| 7184209 | Method and arrangement for projecting images Images are projected onto a projection medium including a screen, which forms an open, light-penetrable structure having a plurality of light-reflecting surface parts. The projection medium may include a screen that is perforated or net-like, such as tulle or bridal... | 02/27/2007 |
| 7180665 | Display device having an extendible screen A display device (1) has an extendible screen (2) and at least one extendible side member (3). The extendible screen (2) is extendible in an extension direction from a relatively compact form to an extended form. The screen (2) in ... | 02/20/2007 |
| 7147030 | Operation group for curtains with winding up roll An operation group for use with a curtain winding roll is described relative to a first embodiment and a second embodiment (G1, G2), the first for automatically and the second for manually winding up curtains. According to the first embodiment (G1 | 12/12/2006 |
