Abstract: An improved piano tuning hammer for use by piano technicians, that allows dramatically increased tuning accuracy, ease of use, and speed. The improved tuning hammer is comprised of relatively large cross-sections. The improved tuning hammer may be comprised of lightweight materials. The relatively large cross-sections provide increased stiffness, which serves to increase the effectiveness of the tuning process.

Abstract: A screen repair apparatus for a damaged screen cloth having vertical and horizontal strands. The apparatus includes a flexible body forming a closed periphery and a screen cloth bounding the body. A plurality of fasteners extend vertically from a plane formed by the flexible body and the repair screen cloth, wherein the fasteners are receivable in openings formed by the vertical and horizontal strands.

Abstract: The invention relates to an improvement in receivers for receiving broadcast video data for generating a video display from said data and also to the method of displaying said data. The invention provides for a memory into which received data can be directed and said data may also at the same time or previously have been used to generate a video display on a display screen. The data in the memory can be called up to generate a video display thereafter and the speed of the display may be selected so as to provide, for example, a slow motion or freeze frame display. The facility allows the user to select to regenerate a display which they may already have seen at the initial video display and further to generate the display in a slow motion sequence. The memory can be updated with newly received data.

Abstract: The design and fabrication of a highly integrated, intelligent integral horsepower, three-phase induction motor drive is based on multichip module (MCM) technology. A conventional three-phase induction motor is transformed into a stand-alone variable-speed drive by way of MCM technology. This solid-state controller-known as a multichip power module (MCPM)-uses known good die (KGD) to obtain minimal footprint, volume, and mass, while maximizing efficiency, reliability, and manufacturability. This is done by integrating the low-power control and high-power sections onto a single substrate. In accordance with one embodiment of the present invention, an integrated circuit assembly formed on a single substrate is capable of transforming and controlling AC power input to DC power output responsive to input signals.

Abstract: A hunting blind formed of a flat base panel having opposed first and second creases forming a first side panel and a second side panel, each of the side panels being foldable to first positions to lie parallel to the base panel or to second positions to extend at angles to the base panel, opposed surfaces of the panels having a camouflaged pattern thereon.

Abstract: The invention comprises a system for supplying carbon dioxide liquids while maintaining a desirable pressure in a liquid carbon dioxide storage vessel. In an exemplary embodiment, an improved vaporizer is deployed in a downstream line from the storage vessel. The vaporizer converts a portion of the withdrawn liquid carbon dioxide into replacement carbon dioxide vapor using heat from steam or electricity supplied by the facility. This replacement carbon dioxide vapor is returned to the storage vessel to maintain the desired internal tank pressure as liquified carbon dioxide is withdrawn. The vaporizer includes an elongated cylindrical steel shell with spaced apart ends. Each end has a steel end cap that is welded to the body. Either end cap may be removed to service the vaporizer. The vaporizer body is penetrated by three ports, a steam inlet, a liquid carbon dioxide inlet and a carbon dioxide vapor outlet.