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Dennis I.
Dennis I. Couzin, Evanston, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20080211120 | CUBE CORNER RETROREFLECTOR WITH LIMITED RANGE - Retroreflective articles having cube corner elements are disclosed, with the dihedral angle errors of the cube corner elements selected to limit the visibility range of the retroreflective article. Also disclosed are methods for making the cube corner elements and the retroreflective articles. | 09-04-2008 |
Dennis I. Couzin, Berlin DE
| Patent application number | Description | Published |
|---|---|---|
| 20110255306 | LIGHT ENHANCING STRUCTURES WITH A PLURALITY OF ARRAYS OF ELONGATE FEATURES - Various embodiments comprise light recycling films comprising an array of parallel ridges and grooves that form prisms that selectively reflect or transmit light. In some embodiments, the light recycling film may be used in displays that include spatial light modulators comprising a plurality of pixels. The light recycling film can limit the field-of-view of the display and enhance the luminance within that field-of-view. Various embodiments comprising multiple arrays of ridges and/or grooves can enhance uniformity of illumination of the pixels in the spatial light modulator and reduce Moiré effects. | 10-20-2011 |
Dennis I. Mariasis, Hanover, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20090236913 | AUDIO AND VIDEO BACK-UP POWER BLOCK - An uninterruptible power supply having an input connector for receiving AC power from a centralized source of electric power such as a power grid of an electric utility company, a first electric outlet, and a second electric outlet for delivering AC power, a first switch for selectively allowing AC power therethrough to the first outlet, a second switch for selectively allowing AC power therethrough to the second outlet: and a controller operable to control the second switch so that AC power is delivered to the second outlet a predetermined amount of time after AC power is delivered to the first outlet (i.e., after a time delay). | 09-24-2009 |
Dennis I. Stewart, Boise, ID US
| Patent application number | Description | Published |
|---|---|---|
| 20080196809 | Tool and method for tire traction device installation - A tire chain installation tool comprises an elongated member that is connectable to a traction chain or other traction device and that acts as an extension and guide for leading or pulling the traction chain onto a tire. The tool receives one end of the tire traction chain, and an elongated belt of the tool is placed around the tread surface of a vehicle tire. Upon rotation of the tire due to movement of the vehicle, friction between the tire and belt (and capture of the belt between the tire and the ground/road) cause the belt and hence the tire traction chain, to be drawn around the circumference of the vehicle tire. Thus, the traction chain is placed in good position to be fastened without the struggle and discomfort frequently associated with installing chains on a vehicle. The preferred belt is easier to lift and manipulate than the traction chain and does not need to be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires. | 08-21-2008 |
| 20090294004 | TOOL AND METHOD FOR TIRE TRACTION DEVICE INSTALLATION - A tire chain installation tool comprises an elongated member that is connectable to a traction chain or other traction device and that acts as an extension and guide for leading or pulling the traction chain onto a tire. The tool receives one end of the tire traction chain, and an elongated belt of the tool is placed around the tread surface of a vehicle tire. Upon rotation of the tire due to movement of the vehicle, friction between the tire and belt (and capture of the belt between the tire and the ground/road) cause the belt and hence the tire traction chain, to be drawn around the circumference of the vehicle tire. Thus, the traction chain is placed in good position to be fastened without the struggle and discomfort frequently associated with installing chains on a vehicle. The preferred belt is easier to lift and manipulate than the traction chain and does not need to be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires. | 12-03-2009 |