摘要:
Control of defrost cycle initiation in a refrigeration apparatus is based on the difference between the last two defrost times, taking into account the sign of the difference so that the increase or decrease in the time between defrosts corresponds to the trend in defrost times rather than on any particular defrost time or the average of defrost times. A variety of limits are included to ensure that the time between defrosts is reactive to sudden aberrational changes in defrost times, and does not exceed minimum or maximum values.
摘要:
A bit breaker and handle for use in conjunction with a drill bit. The bit breaker is in the form of a plate member which is provided with an outside edge having a configuration to be drivingly received within the kelly drive of a drilling rig turntable. The plate is apertured to telescopingly receive a marginal length of the main body of the bit therethrough. A plurality of lugs are circumferentially placed about the aperture. The lugs are slidably received within an enlarged marginal length of the external bit passageways, and abuttingly engage a shoulder formed at the outlet end of the passageway. The drill tubing is held while the turntable is rotated in the appropriate direction to "make up" or "break out" the tubing threads respective to the threads of the bit. The external passageways are further provided with radially extending counterbores which receive the marginal end of a handle therewithin so that the bit can be easily lifted respective to the plate member.
摘要:
A compressed air system is provided for automotive or motorcycle use, wherein compressed air is utilized to assist clearing a windshield or a windscreen during foul weather. The system comprises an electrically driven or belt driven air compressor, a compressed air reservoir tank, a network of air lines throughout the vehicle or attached to a rider's helmet, and a plurality of air nozzles that release the air from the air lines on command. The ejected air is highly pressurized and exits at a high velocity to remove water droplets and particles for improved clarity through the windshield or wind screen. A user-operated switch controls at least one valve to release the compressed air from the network of air lines and through the nozzles, wherein the compressed air tank is continually replenished to allow for consistent and repeated bursts of compressed air over an extended period.
摘要:
The present invention provides a system for presenting media content. A user device (such as a personal computer, tablet, or smart phone) receives media elements from a media repository. The media repository may be remote. The device displays references associated with the media elements in a display area. The device outputs media content (e.g., music or video) associated with each of the media elements for a limited duration (e.g., 30 seconds). While outputting, the references displayed in the display area are scrolled. The display area may be provided as a 3D drum.
摘要:
A compressed air system is provided for automotive or motorcycle use, wherein compressed air is utilized to assist clearing a windshield or a windscreen during foul weather. The system comprises an electrically driven or belt driven air compressor, a compressed air reservoir tank, a network of air lines throughout the vehicle or attached to a rider's helmet, and a plurality of air nozzles that release the air from the air lines on command. The ejected air is highly pressurized and exits at a high velocity to remove water droplets and particles for improved clarity through the windshield or wind screen. A user-operated switch controls at least one valve to release the compressed air from the network of air lines and through the nozzles, wherein the compressed air tank is continually replenished to allow for consistent and repeated bursts of compressed air over an extended period.
摘要:
A polishing pad having a body comprising fibers embedded in a matrix polymer formed by a reaction of polymer precursors. The loose fibers define and the precursors were mixed first with curatives, then mold into a pad form. The pad may include a thin layer of free fibers at its polishing surface. A segment of at least a portion of the free fibers are embedded in the adjacent body of the polymer and fibers.
摘要:
Apparatus for use in orthopaedic surgery includes disposable or partially disposable cutting jigs for use on restructuring the femur and tibia as well as equipment for use in reshaping the patella, thus providing a complete kit for use in knee surgery.
摘要:
Continuous processes for forming cyanoacrylate from polycyanoacrylate include stripping a solvent from a reaction mass; cracking a polymer in the reaction mass to form a cracked cyanoacrylate monomer and residue substances; and distilling the cracked cyanoacrylate monomer to produce a cyanoacrylate monomer product. These steps can be performed in short-path, wiped-film evaporators. Polycyanoacrylate used in the processes can be formed using cyanoacetate produced by processes for continuously producing cyanoacetate by forming a higher homologue cyanoacetate from a lower homologue cyanoacetate. The cyanoacetate can be formed in short-path, wiped-film evaporators.