Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7300533 | Method and apparatus for repairing a wall covering A cutting implement has a body with a top and a bottom and one or more blades extending outwardly of the bottom and defining a closed cutting path. In one embodiment, the implement has a cutting depth control. The cutting implement is particularly useful in cutting ... | 11/27/2007 |
| 6979153 | Deep-grooving insert having stepped cutting edge A deep-grooving chip-forming cutting insert includes a rear mounting portion, a front cutting portion, and a pair of side walls, each side wall extending along the front and rear portions. The front cutting portion includes a front end surface, a top surface, and a ... | 12/27/2005 |
| 6644160 | Vertical blind cutting and hole-punching apparatus A vertical blind cutting and hole-punching apparatus for repairing the slats of vertical blinds. The vertical blind cutting and hole-punching apparatus includes a slat support assembly including a board-like slat support member having a main wall with a b... | 11/11/2003 |
| 6367362 | Apparatus for punching steel studs An apparatus for punching knock-outs out of light gauge steel framing studs used in building construction to form holes of sufficient size to allow building wiring and piping to extend therethrough includes a compact hand held frame (12) having a generall... | 04/09/2002 |
| 6295725 | Capping system and method A method and apparatus for the installation of interchangeable core lock caps that replace the prior art individual cap installation techniques with one that, with in a single highly repeatable operation, punches the caps for a plurality of pin chambers f... | 10/02/2001 |
| 6178861 | Single station cutting apparatus for separating semiconductor packages Apparatus for cutting single or multiple semiconductor packages from a multilayer substrate wherein the semiconductor packages are partially encapsulated by an elastomer sealant layer disposed on a polymer film layer of the substrate. The apparatus includ... | 01/30/2001 |
| 6173632 | Single station cutting apparatus for separating semiconductor packages Apparatus for cutting single or multiple semiconductor packages from a multilayer substrate wherein the semiconductor packages are partially encapsulated by an elastomer sealant layer disposed on a polymer film layer of the substrate. The apparatus includ... | 01/16/2001 |
| 5394782 | Shearing apparatus An apparatus is provided for selectively shearing angle iron and flat stock. The apparatus has a frame defining a receiving station for separately receiving angle iron or flat stock. The receiving station includes a stationary shear blade assembly having ... | 03/07/1995 |
| 5170689 | Metal working machine A metal working machine (10) is disclosed according to the preferred form including a punching station (48) associated with a first crank arm (18) pivotably mounted to the frame (12) by a first pivot pin (20) and including multiple shearing stations (50a-... | 12/15/1992 |
| 4638703 | Shear for different structural shapes A shear for structural shapes in which the shear body is pivotal on the machine body between an erect position and an inclined position to bring respective pairs of blades into play at one and the same working plane for cutting the different structural sh... | 01/27/1987 |
| 4567800 | Drive with single hydraulic cylinder for universal type punching shears A punching and shearing machine in which a single hydraulic cylinder (1) operates alternatively the punch or the shear of the machine. When the punch is operative, a manually operated eccentric lever (16) blocks the shear carrying member (8) so that the s... | 02/04/1986 |
| 4531439 | Metal working apparatus A metal working apparatus comprises a fixed frame and first and second metal working tools operatively mounted to the frame. A tool mounting structure is movable alternatively in one of a first direction for operating the first tool and a second direction... | 07/30/1985 |
| 4392400 | Trimming and piercing apparatus A trimming and piercing apparatus of an extremely high operation efficiency which is capable of trimming and piercing a work simultaneously. The apparatus comprises a fixed die provided with a work mounting surface and a piercing bore opened at the work m... | 07/12/1983 |
| 4250784 | Press for punching and cutting plate-shaped workpieces, especially sheet metal workpieces A combined press for punching and cutting respectively trimming a plate-shaped workpiece comprises at least one punching tool including a punch reciprocable along an axis and a first dirve for reciprocating said punch, at least one cutting tool including ... | 02/17/1981 |
