Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7284330 | Cutting device for workpieces such as rods, bolts and the like, especially for threaded rods A cutting device for rod-shaped workpieces has two actuating levers each in the form of a two-arm pivot lever. The two-arm pivot levers each have a first arm as an actuator and a second arm having a shearing edge. The actuators move the shearing edges relative to on... | 10/23/2007 |
| 7191525 | Two-stage attachment for cutting, crimping etc, and mechanical method thereof A two-stage attachment includes two stages of levers arranged to apply a cutting, shearing, squeezing and/or piercing force. The first stage includes a cam lever that has a segmented arcuate pushing surface. The second stage includes a blades support that has an arc... | 03/20/2007 |
| 6971179 | Cutting tool A cutting tool capable of cutting work pieces which are thicker than what comparably-sized conventional cutting tools are capable of cutting has a jaw with a cutting edge which does not completely abut or overlap over the full length of an opposing edge of a second ... | 12/06/2005 |
| 6516523 | Punch A punch for making holes in sheet stock is disclosed having three main components, a frame, a lever arm, and a plunger. The frame defines a tool head with a handle extending therefrom. The tool head defines a lower jaw and an upper jaw. The upper jaw is s... | 02/11/2003 |
| 5245755 | Force-multiplying mechanism A force-multiplying device includes a base or stationary structure and three levers all pivotally mounted on the base and each having a force input end and a force output end and being arranged in a folded configuration such that each lever extends from t... | 09/21/1993 |
| 5187869 | Nipper instrument for cutting surgical nails, wires or the like A nipper instrument (10), in particular for cutting surgical nails, wires or the like, having a cutting mouth (14) which is defined by two cutting members (15, 15a) at the head end of the nipper instrument, which at the other end has two handle... | 02/23/1993 |
| 4221048 | Hand-grip cutting tools A hand-grip tool for cutting, crimping, swaging or gripping is disclosed, having a multi-stroke action provided by a ratchet and pawl operating arrangement whereby sufficient mechanical advantage to permit one-handed performance of heavy duty tasks can be... | 09/09/1980 |
| 4058893 | Bolt cutter A cutter comprising a first rigid elongate bar, a second shorter bar pivotally mounted on the first bar with an end of the longer bar and an end of the shorter bar coinciding for pivotal movement about an axis spaced from the coinciding ends, said coincid... | 11/22/1977 |
