Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7278806 | Two edge deburring tool A rotating tool for simultaneously deburring two surfaces of a workpiece is disclosed including a rotatable shaft having a first end and a second end with a first deburr surface on the first end facing towards the second end and having a first angle. A second deburr... | 10/09/2007 |
| 7207752 | Reamer and method for reaming The present invention discloses a reamer (20) and a method for reaming, for enlarging a pre-existing hole in a workpiece by rotational and axial cutting. The reamer (20) includes a body (24) extending from a shank (22). The body (24 | 04/24/2007 |
| 6902525 | Dual-motion auto-stimulation device A device designed to take rotary power from an external power source such as a cordless electric screwdriver and transmit that energy into both rotary and reciprocating linear activation of sexual devices used by both males and females for the purpose of masturbatio... | 06/07/2005 |
| 6651348 | Drill powered reciprocating saw A drill powered reciprocating saw including a safety gear assembly which disengages the saw's drive mechanism should the operator lose his or her grip on the saw housing. The gear assembly includes a motor drive shaft that is connected to an electric dril... | 11/25/2003 |
| 5676497 | Power drill-saw with simultaneous rotation and reciprocation action The invention disclosed herein is a simple but versatile sawing device for effectively and efficiently cutting or sawing hard solid materials. A driving mechanism consisting of three slidably-associated elements converts a rotational force into a dual rot... | 10/14/1997 |
| 5626446 | Flat drill bit with opposing vertical cutting edges A flat drill bit having a shaft with an axis of rotation and a flat drill bit head connected to the shaft. The flat drill bit head includes opposing flat front and back faces, left and right edgewalls between the front and back faces, and a bottom endwall... | 05/06/1997 |
| 5197540 | Boring device for lining material in branched portions of lined conduit The present invention relates to a boring device adapted to bore the lining material blocking a branched portion where there is an opening for connecting a main pipeline with a branched pipeline (33), after the inner surface of a pipe (31), such as a gas ... | 03/30/1993 |
| 5105882 | Lateral cutter device A system for cutting lateral holes in plastic pipe liners at the locations of lateral taps in a surrounding pipe comprises a cylindrical body which is inserted into the pipe liner, and remote devices for observing and controlling operation of the body. A ... | 04/21/1992 |
| 5088553 | Lateral cutter device A system for cutting lateral holes in plastic pipe liners at the locations of lateral taps in a surrounding pipe comprises a cylindrical body which is inserted into the pipe liner, and remote devices for observing and controlling operation of the body. A ... | 02/18/1992 |
| 4842451 | Deburring drill bit A deburring drill bit having a shank, an elongated shaft, a drill bit head having forward drilling surfaces formed in the head, and rearward deburring surfaces formed behind said forward drilling surfaces, whereby drilling and deburring can be performed i... | 06/27/1989 |
| 4712952 | Drill for generating of holes in a work piece The invention relates to a drill for generating of holes in a work piece, preferably in a composite material. The drill comprises a cylindrical shank portion, two cutting portions projecting in the axial and radial direction of the drill and two chip gull... | 12/15/1987 |
| 4598744 | Universal machine for wood and/or synthetic plastic working A universal machine for the wood and/or synthetic plastic working has a base model for mounting of various working aggregates which can also be used as independent working aggregates, and includes a working motor supported in a height-adjusting device ins... | 07/08/1986 |
| 4589805 | Boring and deburring head and boring and deburring tool capable of being fastened therein, and method for boring and deburring a workpiece The boring and milling head (11) is designed to receive a boring and mill tool (91) provided with a clamping device (55) having a hollow clamping cone (57) and a conical clamping wedge (61), the device being connected in order to resist torsion, to a dri... | 05/20/1986 |
| 4395168 | Multiple cutter rotary tool A tool for use with a rotary drive is provided with a number of differently formed slots therein to receive different cutting blades in various orientations. The tool is adaptable for cutting in a radial direction and in an axial direction and can accommo... | 07/26/1983 |
| 4123189 | Rotary-plunge tube notching system A system for notching tubes to facilitate their joinder to other tubes or rods, in which a first portion of the notch is formed by a rotary cutting action extending progressively inwardly into the tube side wall and then outwardly in an arcuate path, and ... | 10/31/1978 |
