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 |
| 7234906 | Threaded insert for fasteners A threaded insert for providing stronger threads to a parent material. The threaded insert includes a bushing portion having male threads on the external surface and female threads within an internal bore. The threaded insert also includes keys which lock the thread... | 06/26/2007 |
| 6994503 | Quick-lock nut for a disc-like tool A quick lock nut (1) for positive friction locking securement of a disc-like tool (2) to an external thread (3) on a working spindle (4) driven about an axis of rotation (A), having an associated inner threaded part (5) and a manua... | 02/07/2006 |
| 6969221 | Threaded insert for fasteners A threaded insert for providing stronger threads to a parent material. The threaded insert includes a bushing portion having male threads on the external surface and female threads within an internal bore. The threaded insert also includes keys which lock the thread... | 11/29/2005 |
| 6672811 | Threaded insert for fasteners A threaded insert for providing stronger threads to a parent material. The threaded insert includes a bushing portion having male threads on the external surface and female threads within an internal bore. The threaded insert also includes keys which lock... | 01/06/2004 |
| 6158936 | Self retaining nut A self retaining nut which has an aperture with internal threads positioned within the aperture, and a longitudinal slot intersect at least some of the internal threads. A bowed spring is positioned within the slot and is compressed as the nut is placed o... | 12/12/2000 |
| 5395131 | Anti-theft hitch ball A generally spherical hitch ball has a downwardly extending neck and an outwardly extending flange which engages against the trailer hitch of a towing vehicle. A threaded shaft extends downwardly from the flange through an opening in the hitch. The coupli... | 03/07/1995 |
| 5028191 | Self-locking threaded member and method A self-locking threaded member which may be internally or externally threaded at least along a portion of its surface includes an aperture provided longitudinally along the axis of the member but spaced radially from the center thereof. The aperture is pr... | 07/02/1991 |
| 4895485 | Locking key for threaded insert A key for locking a threaded insert in a carrier material is provided with an improved tang portion. The improved tang portion includes spring retention means for reducing the friction required to position and hold the key within an insert slot prior to f... | 01/23/1990 |
| 4636121 | Holding screw A holding screw rotatable in an inward direction having means to prevent or retard rotational movement in the opposite direction. The screw device includes a conventional screw body having external helical threads to move the screw inwardly by rotating in... | 01/13/1987 |
| 4427352 | Mounting structure for die, punch and core rod assembly for compacting powder material In a die, punch and core rod assembly for a powder compacting press wherein the core rod or rods remain stationary while the punch or punches are reciprocable relative to the die, the invention provides individual longitudinal position adjustment for the ... | 01/24/1984 |
| 4390335 | Die, punch and core rod assembly for compacting powder material A die, punch and core rod assembly for a powder compacting press wherein the core rod or rods remain stationary while the punch or punches are reciprocable relative to the die. The invention provides individual longitudinal position adjustment for the cor... | 06/28/1983 |
