Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7066512 | Hole engaging multiple block lifting device A concrete block lifting device used to lift at least two blocks off a pallet for repositioning on a wall. The device includes a rigid, horizontal, support bar with a block gripping assembly attached thereto designed to selectively attach to blocks on a pallet and t... | 06/27/2006 |
| 6820907 | Multi-unit concrete block tongs A concrete block tong assembly which is designed to lift and transport a plurality of concrete blocks. The assembly is provided with three top support members pivotally connected at one end thereof to one end of three bottom support members. A lifting apparatus is o... | 11/23/2004 |
| 6601892 | Gravity grip A machine for lifting and moving heavy slabs includes two channels connected only by a cable. The channels are placed against opposite edges of a slab. Each channel has a lower flange which is beveled so that the flange will scoop under the edge of the sl... | 08/05/2003 |
| 6550833 | Multi-unit concrete block tongs A concrete block tong assembly which is designed to lift and transport a plurality of concrete blocks. The assembly is provided with three top tubes pivotally connected at one end thereof to one end of three bottom tubes. A lifting apparatus is operativel... | 04/22/2003 |
| 6513847 | Simple multiple concrete block lifting device A device used to simultaneously lift three concrete blocks from a pallet using a backhoe or crane and reposition them for exact placement on a wall. The device comprises a lifting bar that is suspended in a horizontally aligned position from a cable or ch... | 02/04/2003 |
| 5419601 | Lifting device A lifting device for lifting a load positioned on a platform in which a hollow protective framework has a coupling at its upper end and a slidable lifting element is mounted at the lower end of the framework. The framework is formed by a rigid assembly of... | 05/30/1995 |
| 5197847 | Device for automatic handling of objects The device mounted at the end of an operating arm comprises one or more suckers for supporting objects, for example refractory bricks for the brick-lining of a metallurgical converter, means for linear and angular displacement of the suckers, sensors for ... | 03/30/1993 |
| 4946335 | Suction lifting device A suction lifting device for lifting and laying a layered plurality of individual slabs, bricks, stones and the like in unison to provide an exterior paved surface of a road, walk, roof or the like. A plurality of vacuum pucks are supported by the vacuum ... | 08/07/1990 |
| 4836731 | Method and apparatus for cubing stones of diverse geometries A method and apparatus for cubing paving stones or similar stones which are not adapted to forming a self-supporting unit through the means of pressure applied to opposite sides of a tier of such stones. In the present invention, the stones on a flat pall... | 06/06/1989 |
| 4720226 | Automated apparatus for lining the inner wall of a vessel with bricks The apparatus comprises a work platform vertically movable within a vessel and capable of rotating about the vertical axis of the vessel. The work platform is provided with two storage areas for pallets of bricks, and an automatic device for manipulating ... | 01/19/1988 |
| 4583879 | Paving method and grab for use in said method A paving method and a grab for carrying out the method. A group or unit of paving stones or bricks, arranged in a selected pattern, is clamped, picked up, and laid on a prepared sand bed, in contiguity with paving components already laid, by releasing the... | 04/22/1986 |
| 4475758 | Lifting fork A lifting fork intended to be suspended from a lifting member, e.g. a lifting hook (4) of a hoisting crane, and which includes forks (2), a lifting shank (3) to which a movable attachment (7,11,14) for the lifting hook (4) is attached, and a connecting ba... | 10/09/1984 |
| 4360100 | Apparatus for setting formed articles An apparatus for setting of formed articles is provided wherein a transport belt carries cross rows of closely located ceramic briquettes into the region of a provision for separating the briquettes. When the briquettes are separated the cross rows are mo... | 11/23/1982 |
| 4340247 | Gripper unit for clamping and aligning a layer of concrete paving bricks with compound elements for forming a stretcher bond of the bricks into a setting unit A gripper unit for clamping and aligning a layer of concrete paving bricks with compound elements for forming a stretcher bond of the bricks into the form of a setting unit by means of clamping bars which can each engage at their longitudinal edges a row ... | 07/20/1982 |
| 4221517 | Brick dehacker and stacker A method and apparatus for dehacking and stacking brick or the like is disclosed for automatically removing arrays of brick from a hack and for producing stacks of arrays suitable for packaging. A gripper transfer grips full arrays of brick resting on the... | 09/09/1980 |
| 3992049 | Apparatus for stacking bricks in preparation for strapping Bricks are continuously received in double-layer courses, which courses are shifted one at a time onto a receiving plate whereupon a gripper apparatus is activated to grip the opposite sides of the course and retain the course as the receiving plate is re... | 11/16/1976 |
| 3967737 | Depalletizing and pallet stacking apparatus A depalletizer and pallet stacking system includes an inlet station which an elevatable U-shaped loaded pallet support frame which permits a forklift unit to be lowered to deposit a loaded pallet with tiers of articles thereon. The loaded pallet support f... | 07/06/1976 |
| 3958506 | Apparatus for packaging concrete brick Each of a series of small groups of cured bricks, each such group to be joined to others to form a completed hack of such bricks, are automatically handled to stabilize the pressure bearing contact surfaces between adjacent vertical and horizontal surface... | 05/25/1976 |
