Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7090270 | Method and apparatus for suspending an object, such as a hot glass object An assembly/apparatus 10 which allows an object 12 to be suspended and supported with a minimal amount of structural deformation. The assembly accomplishes this object by the inclusion of substantially identical and commercially available constant forc... | 08/15/2006 |
| 7007992 | Internal tube gripping device An internal tube gripping device having first and second gripping arms including elongated sections with a central axis and gripping ends attached thereto and angled sections extending non-parallel to the central axis and including connecting ends attached thereto. ... | 03/07/2006 |
| 6568731 | Pipe lifting apparatus and method A pipe lifting apparatus and method utilizes gripper arms (A) having upwardly diverging links (B) pivotally connected to an upwardly extending operator member (C) for receiving a lifting attachment and for moving a stirrup (D) from side to side to lock an... | 05/27/2003 |
| 6012363 | Extended reach pliers A manuallly operated tool, wherein the manipulation of handles at one end of the tool results in a corresponding movement in jaws at the opposite end. The tool includes two handle elements, wherein each handle element has a first end and a second end. A f... | 01/11/2000 |
| 6012752 | Concrete pipe lifting apparatus A pipe lifter with lockable and releasable scissors grip structure, for laying large pipes. The apparatus includes a solid stabilizing plate over cooperating tongs, the base of the plate being capable of rotating about an axis parallel to the central axis... | 01/11/2000 |
| 5795004 | Hand held device for elevating objects A device for scooping or grasping an object on the floor and then lift it to hand level. This device is primarily for use by a person who cannot bend to pick up an object from the floor. An extendable/retractable lazy tong assembly is connected at one end... | 08/18/1998 |
| 4805493 | Hot radiator cap and pressure remover A tool for the release of pressure in a hot automobile radiator comprises elongated tongs having jaws at one end for gripping the radiator cap and handgrips at the other end. The tool may be manipulated to loosen the cap from a position removed from the r... | 02/21/1989 |
| 4169622 | Tong for supporting glass sheets having their edges welded together Tongs suspended from an overhead conveyor have porous metal surface engaging pads for vertically supporing a pair of glass sheets having their edges welded together and transporting the welded sheets from a welding station through an annealing lehr. There... | 10/02/1979 |
| 4108624 | Supporting a glass sheet for press bending In a mold for press bending glass sheets hung from glass-gripping tongs in which the shaping surfaces have notches along their top edges to provide clearance for the tongs, kinking of the portions of the glass adjacent to the notches during the bending op... | 08/22/1978 |
