Patents Assigned to Missouri Research Laboratories, Inc.
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Patent number: 4394106Abstract: A lift truck mechanism for handling glass sheets having a glass pack lifting frame. Gripping devices at the sides of the lifting frame engage sides of a glass pack. Feet at the bottom of the lifting frame support the glass pack on the frame. A framework of the mechanism attaches it to the lift mast of the lift truck, there being an operator control station platform extending rearwardly from the lifting frame above the lift mast. An intermediate frame is carried by the framework in selectively extendable relationship in front of the mast and there is a first pair of swinging frames swingably affixed to the intermediate frame for swinging movement on upright axes at the opposite sides of the intermediate frame. A second pair of swinging frames is provided, swingably affixed at proximal ends to the distal ends of the first pair of frames. Distal ends of the second pair of frames are pivoted to the lifting frame. A drag link interconnects the distal ends of the first pair of frames.Type: GrantFiled: August 24, 1981Date of Patent: July 19, 1983Assignee: Missouri Research Laboratories, Inc.Inventors: Kenneth A. Frees, Thomas E. Quick
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Patent number: 4300867Abstract: A modular push-pull unit is provided for installation upon a walkie type fork lift pallet truck of the type having a power unit with tiller-operated drive wheel at one end and a pair of controllably liftable forks at the other with an apron proximate the power unit liftable with the forks. The forks are provided with bearings for tiltably mounting a split platen of the push-pull unit, which includes an upright frame interconnected with the apron by hydraulic cylinders for controlling tilt of the platen. The upright frame carries a scissors mechanism having a pusher plate adapter for pushing and pulling movement across the platen.Type: GrantFiled: March 20, 1980Date of Patent: November 17, 1981Assignee: Missouri Research Laboratories, Inc.Inventor: Kenneth A. Frees
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Patent number: 4287966Abstract: A compact industrial truck includes a chassis having a power unit at the front and a single steerable drive wheel under the power unit. A pair of nonsteerable wheels is located at the rear of the chassis. Rearward of the power unit is a platform upon which an operator may stand while operating the truck, there being a steering arm interconnected with the drive wheel and accessible by the operator. A fork lift assembly is carried at the rear of the chassis and has a pair of forks extending rearwardly for lifting palletized loads, there being a fork actuation device preferably in the form of a hydraulic cylinder for selectively raising and lowering the forks. A coupler can be carried at least at one end of the chassis, and optionally at both ends, for coupling a trailer to the truck independently of the fork lift assembly. Control devices are accessible to the operator from the platform for controlling both the movement of the wheel and the raising and lowering of the forks.Type: GrantFiled: November 6, 1978Date of Patent: September 8, 1981Assignee: Missouri Research Laboratories Inc.Inventor: Kenneth A. Frees
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Patent number: 3998345Abstract: A side loader for use with fork lift trucks or the like having a support frame and a rotatable frame mounted on the support frame for rotation with respect to the support frame about a vertical axis. A reach apparatus is mounted at its inner end upon the rotatable frame for extending and retracting movement along a substantially horizontal axis, and a fork bar frame carried upon the reach apparatus includes fluid actuated means for tilting the fork bars thereon. A unique actuator system is provided for rotating the rotatable frame with respect to the support frame.Type: GrantFiled: June 2, 1975Date of Patent: December 21, 1976Assignee: Missouri Research Laboratories, Inc.Inventors: Raymond H. Fiehler, Thomas E. Quick, Kenneth A. Frees
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Patent number: D262613Type: GrantFiled: November 6, 1978Date of Patent: January 12, 1982Assignee: Missouri Research Laboratories Inc.Inventor: Kenneth A. Frees