Abstract: This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.

Abstract: This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.

Abstract: Embodiments are configured to manage memory, including detecting one or more memory leaks. The various embodiments are configured to detect memory leaks and/or associated data without adding extra space or overhead for each associated memory allocation as compared with current implementations. In an embodiment, memory is managed including the detection a memory leak by using a fixed memory overhead, such as a fixed block or buffer of N pointers, instead of adding extra space per memory allocation. The contents of the fixed block can be altered and used to detect when memory has been allocated but not freed based on an analysis of a polynomial associated with one or more allocation and free operations. The polynomial can be solved to determine leaked pointers under certain conditions.

Abstract: Embodiments of lighting assemblies disclosed herein are particularly designed for installation in display units to more effectively distribute light towards, and thereby better illuminate, the products housed in the display unit. The lighting assemblies include at least one, but preferably a plurality of, light emitting diodes mounted on a frame. The frame is preferably formed so as to have a number of mounting arms on which to mount the LEDs. In this way, the LEDs can be positioned on the arms and their emitted light can be directed to focus on different aspects of the display unit (i.e., the products housed in the unit, banners or advertisements on the unit, etc.). The lighting assemblies may include, but do not have to include, various optical features to enhance the distribution of light emitted from the LEDs, including, but not limited to, lenses, reflectors, etc.

Abstract: A lighting assembly having a plurality of light sources and a lens matrix having a plurality of lenses. The lens matrix may be positioned relative to the light sources so that each light source resides in a first orientation within one of the lenses and emits a light distribution. Relative translation between the light sources and the lens matrix alters the orientation of the light sources within the lenses, creating a different light distribution. A light source's orientation may change within the same lens, or the light source may translate to a different lens to alter the distribution of its emitted light.

Abstract: A book comprises two or more pages at least one of which is operable to visually display information about a subject, a first speaker mounted to a first page and operable to generate a sound, a second speaker mounted to a second page and operable to generate a sound, and an audio device operable to cause the first speaker to generate a first sound and the second speaker to generate a second sound, wherein the first and second sounds generate a sound-field having more than one spatial dimension. By generating a sound-field having more than one spatial dimension, the book can provide a reader an aural experience that is more accurate with the actual aural experience of the book's subject or aspect of the subject. Thus, the reader is more likely to accurately comprehend and appreciate the information that the book provides.

Abstract: A vertically adjustable overhang bracket uses an elongate base component adapted to be supported from a support column. A frame member is slidably secured to the base component to allow movement of the frame along the length of the elongate base component. The frame is of a shape to provide an outwardly extending support member for supporting concrete formwork members to one side of the base component. An actuator controls the position of the frame, relative to the elongate base component. With this arrangement, concrete formwork can be more easily supported in a cantilevered manner from support columns and vertically adjusted quickly to the proper position. Removal of the formwork is simplified as the frame can be lowered, relative to the base component providing clearance for removal of the bracket and the formwork.

Abstract: In one aspect of the invention, a book comprises at least one page visually displaying information about a subject, wherein the visually displayed information is conveyed from a first perspective; and an audio device operable to aurally display information about the subject, wherein the aurally displayed information is conveyed from a second perspective that is different than the first perspective, and wherein the information displayed aurally is different than the information displayed visually. By receiving different information from different perspectives, a user of the book can draw more and better inferences, develop more thorough conclusions and thus better understand the subject of the book.

Abstract: Embodiments are configured to manage memory, including detecting one or more memory leaks. The various embodiments are configured to detect memory leaks and/or associated data without adding extra space or overhead for each associated memory allocation as compared with current implementations. In an embodiment, memory is managed including the detection a memory leak by using a fixed memory overhead, such as a fixed block or buffer of N pointers, instead of adding extra space per memory allocation. The contents of the fixed block can be altered and used to detect when memory has been allocated but not freed based on an analysis of a polynomial associated with one or more allocation and free operations. The polynomial can be solved to determine leaked pointers under certain conditions.

Abstract: This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.

Abstract: A dry ice feeding apparatus comprises a hopper (10) adapted to store a supply of dry ice pieces. The hopper (10) has a substantially cylindrical upper portion (12), a frusto-conical lower portion (14) depending downwardly from the upper portion, and a head portion (18) disposed atop the upper portion. The hopper also has an upper opening (20) in the head portion to provide access for loading dry ice pellets into the hopper and a lower opening (17) at the bottom of lower portion. A lid (26) adapted to cover the upper opening of the hopper includes an 0-ring (30) providing a fluid seal between the lid and the hopper's upper opening. A mixing chamber (64) is disposed beneath the lower opening of the hopper.

Abstract: A safety ladder cage system is of a fabricated construction to reduce the time and expertise to provide a safety cage to one side of a scaffold system access ladder. The safety cage system is divided into two components each of which can be carried by a worker to the appropriate point and loosely hung from a ladder rung or the ladder uprights. The worker is then free to accurately position the safety cage component to one side of the ladder. The second component is then brought into position and attached to the opposite side of the ladder in a similar manner. The components are then attached to each other along vertical securing edges outwardly spaced from and generally centered on the ladder. Each component preferably includes its own captured connector for engaging the opposite component.

Abstract: The present invention provides an electrical isolation apparatus having independently controllable contactors. The isolation apparatus includes a contactor for each phase or pole of an electrical device as well as each phase or pole of a load. Each contactor is constructed so that each includes multiple contact assemblies that may be independently controlled to open and close. Moreover, the contactors within a single contactor assembly or housing can be independently controlled so that the contacts of one contactor can be opened without opening the contacts of the other contactors in the contactor assembly. Additionally, the contactors are construct and controlled such that a single line side contactor and a single load contactor open simultaneously when an open circuit condition is desired.

Abstract: A toeboard for a raised working platform advantageously cooperates with known construction systems to simplify securement and allow efficient setup. Each toeboard has connectors at either end of an elongate body member. Each connector has two fingers extending in a manner to intersect with a longitudinal axis of the elongate member. The connectors at opposite ends of the elongate body have an opposite orientation of said fingers where the fingers of one connector are 180 degrees out of alignment with the fingers of the other connector. This arrangement allows toeboards to connect easily in an end to end manner as well as in a perpendicular manner.

Abstract: An extruded metal structural component has a hollow generally rectangular section with the sides of the rectangular section adapted to interlock and engage with other structural components of the same cross section. The generally rectangular section includes on one side a shallow “U” shaped channel and the opposite side includes a projecting portion for mating receipt in the “U” shaped channel of a second structural component. The structural component includes a downwardly extending securing flange for engaging and securing connecting members when two such structural components form the top and bottom chord of a structural beam.

Abstract: A method and device for forming slabs of dry ice is shown. A dry ice extruding machine has been modified with a die that has a slot for extruding a slab of dry ice therethrough. The slot is blocked until a puck is formed in an end of a forming chamber of the dry ice extruding machine. The block is then removed and dry ice extruded to a desired length and then broken to give a slab of dry ice. The last step is repeated over and over as the extruded portion reaches the desired length to give the number of slabs wanted.

Abstract: Apparatus and a corresponding method for predistorting an input signal applied to a radio frequency (RF) power amplifier, to compensate for amplifier distortion at high powers. The RF amplifier input and output signals are continuously monitored and difference signals are generated in an RF phase discriminator. The difference signals are converted to digital form and stored in a lookup table in the form of running averages of an RF amplifier gain compression value and an RF amplifier output phase value for each observed RF input power value. A predistorter module retrieves these values and predistorts the RF amplifier input by way of compensation.

Abstract: An assembled structural beam according to the present invention comprises a top chord and a bottom chord mechanically connected by series of diagonal connecting members. The top chord includes, on an upper surface, a longitudinally extending bolt slot. The bottom chord includes, on a bottom surface, a longitudinally extending bolt slot. Each of the chords have two opposed side surfaces with a shallow channel recess in one side and extending the length of the chord, with a complementary projection on the opposite side and extending the length of the chord sized for receipt in the shallow channel recess. Each chord is an extruded component and includes a securing flange which cooperates with the diagonal connecting members to secure the top chord to the bottom chord. The structural beam is particularly useful in flying forms for concrete forming.