Patents Assigned to Multi-Shifter, Inc.
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Patent number: 8025474Abstract: A battery-changing vehicle includes a mobile carriage, a frame disposed above the mobile carriage, and a boom assembly connected to the frame. The mobile carriage defines a loading deck for receiving and transporting a battery. The boom assembly includes a lift hoist that lifts a battery to and from the loading deck. The lift hoist is capable of lateral movement between an extended disposition, at which the lift hoist is cantilevered away from the loading deck, and a withdrawn disposition, at which the lift hoist is disposed above the loading deck. The battery-changing vehicle may also include a transfer arm capable of transferring a battery to and from the loading deck.Type: GrantFiled: March 30, 2011Date of Patent: September 27, 2011Assignee: Multi-Shifter, Inc.Inventors: Eric D. Springston, John R. Pratt, Dale A. Williams
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Patent number: 7938612Abstract: A battery-changing vehicle includes a mobile carriage, a frame disposed above the mobile carriage, and a boom assembly connected to the frame. The mobile carriage defines a loading deck for receiving and transporting a battery. The boom assembly includes a lift hoist that lifts a battery to and from the loading deck. The lift hoist is capable of lateral movement between an extended disposition, at which the lift hoist is cantilevered away from the loading deck, and a withdrawn disposition, at which the lift hoist is disposed above the loading deck. The battery-changing vehicle may also include a transfer arm capable of transferring a battery to and from the loading deck.Type: GrantFiled: September 7, 2007Date of Patent: May 10, 2011Assignee: Multi-Shifter, Inc.Inventors: Eric D. Springston, John R. Pratt, Dale A. Williams
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Publication number: 20090014219Abstract: There is provided a cart for lifting and moving materials. The cart includes a lift mechanism for raising and lowering a support surface to lift the materials during transport. The cart also includes a motorized drive wheel assembly which provides a drive force in a forward or backward direction to assist the operator in moving the materials. The motorized drive wheel assembly has a variable vertical position relative to the cart wheels to enable the drive wheels to provide a drive force over contoured surfaces, such as near the base or top of a ramp. The motorized drive wheel assembly also includes a weight to maintain a minimum normal force for traction and includes a differential to allow the drive wheels to rotate at differing speeds to facilitate convenient steering of the cart. The cart is powered by one or more rechargeable batteries.Type: ApplicationFiled: January 19, 2006Publication date: January 15, 2009Applicant: MULTI-SHIFTER INC.Inventors: Eric D. Springston, John R. Pratt, Dale A. Williams
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Patent number: 7220222Abstract: There is provided a cart for transporting dies, molds, and similar objects. The cart includes a lift mechanism for raising and lowering a support surface to the height of the surface onto which or from which the die will be moved. The support surface includes a transfer mechanism for coupling to the die, either with an electromagnet or a suction device, to thereby slide the die as desired without damaging critical components on the exterior of the die. The cart also includes a motorized drive wheel assembly which provides a drive force in a forward or backward direction to assist the operator in moving a die that has been transferred onto the cart. The cart is powered by one or more rechargeable batteries. The cart enables a single operator to safely and conveniently remove, insert, and transport dies or other similar objects.Type: GrantFiled: November 10, 2005Date of Patent: May 22, 2007Assignee: Multi-Shifter Inc.Inventors: Eric D. Springston, John R. Pratt, Dale A. Williams
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Patent number: 6543986Abstract: The present invention discloses either an apparatus that is adapted for selective mounting to and demounting from a pallet jack for use therewith or a transport vehicle having an apparatus permanently mounted thereto, which can effectively and efficiently transport articles or stacks of objects, such as boxes, furniture, trays, or the like from one location to another. The apparatus comprises a housing and an article engaging and lifting member, which includes a base and a back support member for supporting the article or stacks of objects. The article engaging and lifting member is pivotally mounted to the housing, preferably adjacent the bottom of the back support member. In one embodiment, the apparatus further includes a first clamp member for maintaining the article adjacent the back support member.Type: GrantFiled: April 30, 2001Date of Patent: April 8, 2003Assignee: Multi-Shifter, Inc.Inventors: Eric D. Springston, John R. Pratt, John Schoenma ker, Dale A. Williams
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Patent number: 6247887Abstract: The present invention discloses either an apparatus that is adapted for selective mounting to and demounting from a pallet jack for use therewith or a transport vehicle having an apparatus permanently mounted thereto, which can effectively and efficiently transport articles or stacks of objects, such as boxes, furniture, trays, or the like from one location to another. The apparatus comprises a housing and an article engaging and lifting member, which includes a base and a back support member for supporting the article or stacks of objects. The article engaging and lifting member is pivotally mounted to the housing, preferably adjacent the bottom of the back support member. In one embodiment, the apparatus further includes a first clamp member for maintaining the article adjacent the back support member.Type: GrantFiled: February 25, 1999Date of Patent: June 19, 2001Assignee: Multi-Shifter, Inc.Inventors: Eric D. Springston, John R. Pratt, John Schoenmaker, Dale A. Williams
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Patent number: 4795358Abstract: Apparatus and methods for aligning, mating and unmating connectors as a result of relative motion between apparatus operatively associated with the two parts of the connector is disclosed. Specifically, as the apparatus operatively associated with the two parts of the connector move with respect to each other, the parts of the connector move along at least first and second angularly displaced paths to align, mate and unmate the connector as a result of such motion.Type: GrantFiled: August 7, 1987Date of Patent: January 3, 1989Assignee: Multi-Shifter, Inc.Inventor: John C. Lyles