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Hard faced aluminum alloy impeller for use in centrifugal pumps for handling fluids containing solids or debris, has impeller main body provided with aluminum alloy core, and hard facing layer formed in surface of aluminum alloy core
2024-12-23
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Tree climbing equipment for use by arborist, has foldable seating arrangementfixed in climber, closed coil helical-shaped spring for absorbing shock, stainless steel for lifting heavy load, and safety rope for lifting to long height
2023-12-12
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Radio frequency identification (RFID) door lock for controlling access to door, has RFID reader/writer which reads information stored on RFID tag, when RFID tag is presented to RFID reader/writer, where lock is unlocked, if information on RFID tag matches information stored in door lock system
2023-10-16
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Radio frequency identification (RFID) door lock using RFID technology to grant access to authorized users, is more secure than existing key-based locks because RFID cards are difficult to duplicate and programmed to only work with specific locks
2023-10-16
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Electrically powered wheelbarrow for transporting heavy material over short distances, has electronic unit housed within section of chassis, and powering and operating wheelbarrow, and transmission arrangement coupled to electronic unit
2023-06-23
