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 |
| 5914156 | Method for coating a carbonaceous material with a molybdenum carbide coating A carbonaceous material coated with a molybdenum carbide coating, the molybdenum carbide coating protecting the carbonaceous material against attack by molten metal while simultaneously providing a wetting action for the molten metal to infiltrate the car... | 06/22/1999 |
| 5834115 | Metal and carbonaceous materials composites A composite of a metal infiltrated into a carbonaceous material. The carbonaceous material is coated with a molybdenum carbide coating, the molybdenum carbide coating protecting the carbonaceous material against attack by molten metal while simultaneously... | 11/10/1998 |
| 5806588 | Heat transfer apparatus and method for tubes incorporated in graphite or carbon/carbon composites A novel heat transfer apparatus and method including a body of carbon/carbon material with cooling tubes brazed therein. The carbon/carbon material includes carbon, graphite, carbon fibers, graphite fibers and combinations of the same and silicon carbide ... | 09/15/1998 |
| 5665047 | Multiple function centrifuge apparatus with index plate and method A multiple function centrifuge for use in the centrifugation of sets of centrifugation containers within preselected size ranges and centrifugation speeds. The centrifuge rotor is configured with a plurality of receptacle sets therein, each set having a p... | 09/09/1997 |
| 5516249 | Exoskeleton with kinesthetic feedback and robotic control A control apparatus and method for controlling a remote actuator, the control apparatus having a kinesthetic feedback system for providing a kinesthetic sensation to the operator as a physical sensation representative of the resistive forces encountered b... | 05/14/1996 |
| 5410796 | Copper/copper alloy and graphite fiber composite and method A method for producing a composite having graphite fibers in a matrix of copper/copper alloy. The graphite fibers are coated with a refractory metal which both protects the graphite fibers from the molten copper/copper alloy while also acting as a wetting... | 05/02/1995 |
| 5396266 | Kinesthetic feedback apparatus and method A kinesthetic feedback apparatus and method whereby braking forces are imposed on a hand-movable lever. The lever is either a joystick or a uniplanar lever, and the braking forces are imposed by a friction plate being pressed against a portion of the leve... | 03/07/1995 |
| 5389845 | Linear actuator apparatus and method A linear actuator and method whereby linear movement of a drive rod is achieved in a step-wise fashion using a pair of clamping members in conjunction with extension members. The body of the linear actuator is configured as a pair of housings, each with a... | 02/14/1995 |
| 5316952 | Blood sample apparatus and method An improved blood sample apparatus having a capillary channel formed in a basal element and enclosed with a transparent overlay to create a capillary tube. A chamber for receiving a sample of blood is formed in the basal element at one end of the capillar... | 05/31/1994 |
| 5244748 | Metal matrix coated fiber composites and the methods of manufacturing such composites A fiber coating which allows ceramic or metal fibers to be wetted by molten metals is disclosed. The coating inhibits degradation of the physical properties caused by chemical reaction between the fiber and the coating itself or between the fiber and the ... | 09/14/1993 |
| 5151368 | Dual axis, continuous flow bioreactor apparatus A dual axis bioreactor system wherein a bioreactor vessel is mounted at its longitudinal axis to a horizontal axle with the bioreactor vessel thereby being rotatable about its longitudinal axis. The horizontal axle is rotatably mounted to a vertical shaft... | 09/29/1992 |
| 4983189 | Methods and apparatus for moving and separating materials exhibiting different physical properties Methods and apparatus for controlling the movement of materials having different physical properties when one of the materials is a fluid. The invention does not rely on flocculation, sedimentation, centrifugation, the buoyancy of the materials, or any ot... | 01/08/1991 |
| 4932132 | Electronic level apparatus and method This invention relates to an electronic level apparatus wherein a hollow torus is rotatably mounted in the level. A body of ferromagnetic fluid creates a horizontal reference and is sensed to provide an audible signal when a predetermined angular orientat... | 06/12/1990 |
| 4812289 | Oxide dispersion hardened aluminum composition Refractory metal oxide particles are dispersed in an aluminum melt which is then cast to form a dispersion hardened aluminum alloy composition. A master mix of carrier metal particles surrounding individual oxide particles is pressed into a billet. The bi... | 03/14/1989 |
| 4731132 | Oxide dispersion hardened aluminum composition Refractory metal oxide particles are dispersed in an aluminum melt which is then cast to form a dispersion hardened aluminum alloy composition. A master mix of carrier metal particles surrounding individual oxide particles is pressed into a billet. The bi... | 03/15/1988 |
| 4554686 | Polymethylmethacrylate bone cements and methods for preparing such bone cements The present invention is directed to polymethylmethacrylate bone cement that is premixed and frozen so as to arrest the polymerization reaction at a suitable point. The frozen bone cement is treated by electromagnetic radiation to insure sterility. In use... | 11/26/1985 |
