| Patent application number | Description | Published |
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| 20080198624 | LIGHT GUIDE ORIENTATION CONNECTOR - A light guide assembly and method of forming the assembly. The light guide assembly includes an elongate light guide having an optically smooth surface for propagating light along its length and a light emitting region extending along at least a portion of the light guide length. The light emitting region has light extraction structures extending into the elongate light guide to extract or reflect light radially from the light guide. The assembly also includes a light source connector coupled to the light input end of the light guide. The light input end has primary encoding orientation geometry. The light source connector has a first end with secondary encoding orientation geometry, configured to mate with the primary encoding orientation geometry, and an opposing second end configured to accept a light source. | 08-21-2008 |
| 20080232740 | EFFICIENT LIGHT INJECTOR - A light injector includes a tapered solid light guide having a light input end, an opposing light output end, and a total internal reflection surface defining a longitudinal outer surface there between. The light input end includes an aperture extending into the tapered solid light guide defined by an aperture surface. A specularly reflective layer or film is disposed adjacent to the total internal reflection surface. A distance between the specularly reflective layer or film and the total internal reflection surface defines a first air gap. The aperture is configured to accept a lambertian light source. | 09-25-2008 |
| 20110134347 | STEREOSCOPIC 3D LIQUID CRYSTAL DISPLAY APPARATUS WITH SLATTED LIGHT GUIDE - A scanning backlight for a stereoscopic 3D liquid crystal display apparatus includes a light guide formed from a plurality of segments. Each segment has a first side and a second side opposite the first side, and a first surface extending between the first and second sides and a second surface opposite the first surface. The first surface substantially re-directs light and the second surface substantially transmits light. The plurality of segments are arranged substantially in parallel and with the second surfaces transmitting light in substantially the same direction to provide backlighting for a stereoscopic 3D liquid crystal display. A first light source is disposed along the first side of each segment for transmitting light into the light guide from the first side, and a second light source is disposed along the second side of each segment for transmitting light into the light guide from the second side. Each segment first and second light source is selectively turned on and off in a particular pattern and each segment light source selectively transmits light into the light guide first side or light guide second side to form a scanning backlight. | 06-09-2011 |
| Patent application number | Description | Published |
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| 20090155035 | SEMI TRAILER DOLLY - A dolly is disclosed for a semi-trailer that has a compromised structure due to a load shift or an accident. The semi-trailer dolly can also be used to extricate a semi-trailer stuck under a bridge without damaging the wheels or tires of the semi-trailer. In accordance with an important aspect of the present invention, the dolly is configured to provide transverse support of a semi-trailer in an area between the rear axles of the semi-trailer and the front of the semi-trailer. More particularly, the dolly is configured to provide a uniform transverse lifting force to a semi-trailer in an area between the rear axles of a semi-trailer and the front of a semi-trailer where a structural failure of the semi-trailer is likely to occur. The semi-trailer dolly includes a removable saddle and a wheeled cart that includes lifting mechanisms. The removable saddle can be removed from the wheeled cart and positioned under the trailer. Tow truck boom winches connected to opposite sides of the saddle can then be used to lift the saddle and thus the trailer to enable the wheeled cart to be put in position under the saddle. Once the wheeled cart is positioned under the saddle, adjustable lifting mechanisms on the wheeled cart enable the height of the saddle to be varied. The lifting mechanisms are then used to level the floor of the semi-trailer and provide support for the floor of the semi-trailer | 06-18-2009 |
| 20090250901 | CONVERTER DOLLY FOR A TANDEM TRAILER - A converter dolly is disclosed for use with a tandem trailer arrangement. In accordance with an important aspect of the invention, the converter dolly is multi-functional and is user configurable. In particular, the converter dolly in accordance with the present invention includes an adjustable saddle can be adjusted to fit any conventional trailer. The saddle is carried by a wheeled cart, which includes a fifth wheel assembly for coupling to a tandem trailer. The saddle is configured to seat a tandem trailer. The height of the saddle relative to the underside of the tandem trailer is user configurable. In an extended position, the tandem trailer is seated in the saddle which prevents rotation of the tandem trailer with respect to the converter dolly thus eliminating one of the three pivot points in a conventional tandem trailer arrangement. In order to provide steering for the tandem trailer, the wheels on the wheeled cart are carried by self steering axles. | 10-08-2009 |
| 20100001489 | SEMI TRACTOR DOLLY ASSEMBLY - A tractor dolly assembly is disclosed for use with a semi tractor or other vehicle to be towed in either a forward or reverse direction. The tractor dolly assembly is configured to be coupled to the rear frame of a semi tractor or other vehicle and lift the rear wheels off the ground for towing. In a forward tow direction, a conventional tow truck with a hydraulically operated boom for lifting the front of the semi tractor off the ground. In a reverse direction, virtually any truck with a pintle or other means for connection to a tow bar can be used for towing the disabled vehicle. In accordance with an important aspect of the invention, the tractor dolly assembly is provided with self steering wheels which allow the disabled vehicle to be towed in a reverse tow direction. The tractor dolly assembly is configured so that in a reverse tow direction, the semi tractor can be towed by any truck with a pintle hook, which are fairly common on semi tractors and other over the road vehicles or other means for connection to a tow bar. The pintle hook would be connected to a draw or tow bar, which, in turn, would be connected to the tractor dolly assembly on accordance with the present invention. In accordance with another important feature of the invention, since the tractor dolly assembly is configured to be secured to the frame of a disabled vehicle, use of the tractor dolly assembly is independent of the configuration of the tractor or other vehicle or whether the disabled vehicle has a fifth wheel assembly. | 01-07-2010 |
| 20100253042 | SEMI TRACTOR DOLLY ASSEMBLY - A tractor dolly assembly is disclosed for use with a semi tractor or other vehicle to be towed in either a forward or reverse direction. The tractor dolly assembly is configured to be coupled to the rear frame of a semi tractor or other vehicle and lift the rear wheels off the ground for towing. In a forward tow direction, a conventional tow truck with a hydraulically operated boom for lifting the front of the semi tractor off the ground. In a reverse direction, virtually any truck with a pintle or other means for connection to a tow bar can be used for towing the disabled vehicle. In accordance with an important aspect of the invention, the tractor dolly assembly is provided with self steering wheels which allow the disabled vehicle to be towed in a reverse tow direction. The tractor dolly assembly is configured so that in a reverse tow direction, the semi tractor can be towed by any truck with a pintle hook, which are fairly common on semi tractors and other over the road vehicles or other means for connection to a tow bar. The pintle hook would be connected to a draw or tow bar, which, in turn, would be connected to the tractor dolly assembly on accordance with the present invention. In accordance with another important feature of the invention, since the tractor dolly assembly is configured to be secured to the frame of a disabled vehicle, use of the tractor dolly assembly is independent of the configuration of the tractor or other vehicle or whether the disabled vehicle has a fifth wheel assembly. | 10-07-2010 |
| 20110135438 | SEMI TRAILER DOLLY - A dolly is disclosed for a semi-trailer that has a compromised structure due to a load shift or an accident. The semi-trailer dolly can also be used to extricate a semi-trailer stuck under a bridge without damaging the wheels or tires of the semi-trailer. In accordance with an important aspect of the present invention, the dolly is configured to provide transverse support of a semi-trailer in an area between the rear axles of the semi-trailer and the front of the semi-trailer. More particularly, the dolly is configured to provide a uniform transverse lifting force to a semi-trailer in an area between the rear axles of a semi-trailer and the front of a semi-trailer where a structural failure of the semi-trailer is likely to occur. The semi-trailer dolly includes a removable saddle and a wheeled cart that includes lifting mechanisms. The removable saddle can be removed from the wheeled cart and positioned under the trailer. Tow truck boom winches connected to opposite sides of the saddle can then be used to lift the saddle and thus the trailer to enable the wheeled cart to be put in position under the saddle. Once the wheeled cart is positioned under the saddle, adjustable lifting mechanisms on the wheeled cart enable the height of the saddle to be varied. The lifting mechanisms are then used to level the floor of the semi-trailer and provide support for the floor of the semi-trailer | 06-09-2011 |
