![]() ![]() In most of these instances, reception of goods and supplies by the plant, or shipment of manufactured goods from the plant or warehouse, is done through large openings in various walls of the plant building that provide an unobstructed opening through which forklift trucks may move. Alternatively, where railroad cars are used to receive and ship goods at these plants, the ramp is usually spaced from the open door of the railroad car by approximately 3 or 4 feet, and a heavy steel plate or apron is extended between the building ramp and the railroad car to fill the gap and permit the transfer or reception of goods between the railroad car and the plant. To facilitate receiving and shipping goods from these plants, it is the practice to provide shipping and receiving ramps that are elevated above grade level so as to approximate the height of the bed of a truck backed up to the ramp. ![]() We have found that many manufacturing plants and warehouses utilize vast square footage areas to perform their various functions, and that delivery of supplies and the shipping of materials from these plants is frequently by truck or railroad car. B66F9/24- Electrical devices or systems.B66F9/20- Means for actuating or controlling masts, platforms, or forks.B66F9/0755- Position control Position detectors.B66F9/075- Constructional features or details.B66F9/06- Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g.B66F9/00- Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes.DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD B66F- HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g.G08B13/24- Electrical actuation by interference with electromagnetic field distribution.G08B13/00- Burglar, theft or intruder alarms.G08B- SIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US5926208P external-priority Application filed by Magic Force Inc filed Critical Magic Force Inc Priority to US12/171,075 priority Critical patent/US8314686B2/en Publication of US20090303035A1 publication Critical patent/US20090303035A1/en Application granted granted Critical Priority to US13/682,045 priority patent/US20130293380A1/en Publication of US8314686B2 publication Critical patent/US8314686B2/en Status Expired - Fee Related legal-status Critical Current Adjusted expiration legal-status Critical Links Original Assignee Magic Force Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Current Assignee (The listed assignees may be inaccurate. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US12/171,075 Other versions US8314686B2 Google Patents Radio controlled safety stop system for forklift trucks with rfidÄownload PDF Info Publication number US20090303035A1 US20090303035A1 US12/171,075 US17107508A US2009303035A1 US 20090303035 A1 US20090303035 A1 US 20090303035A1 US 17107508 A US17107508 A US 17107508A US 2009303035 A1 US2009303035 A1 US 2009303035A1 Authority US United States Prior art keywords rfid person monitored capacitor forklift truck Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US20090303035A1 - Radio controlled safety stop system for forklift trucks with rfid US20090303035A1 - Radio controlled safety stop system for forklift trucks with rfid ![]()
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