...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 |
| 4918996 | Turbine flowmeter A turbine flowmeter comprises an impeller which has a rotary shaft rotatable together with the impeller and is provided within a flow passage through which a fluid to be measured flows, a pair of bearing members for axially supporting the rotary shaft, an... | 04/24/1990 |
| 4599006 | Cartridge bearing assembly A self-aligning, self-contained, self-lubricating cartridge bearing assembly including a nonporous bearing member having a central bore sized to receive a rotatable shaft. The bearing member has an aperture extending radially from its central bore to its ... | 07/08/1986 |
| 4409714 | Methods of assembling a wick and bearing In a method of assembling a wick and bearing, the wick is passed into a bore of the bearing through one end thereof, and bridge means on the bearing spanning the bore thereof is captured between bifurcated sections of the wick. In another method of assemb... | 10/18/1983 |
| 4215285 | Splash shield for electric motor A splash shield for an electric motor, particularly a squirrel cage motor with a die cast rotor. The rotor has a circular flange extending endwise from one or both end faces of the rotor. Each of these flanges is intergally die cast with the end ring of t... | 07/29/1980 |
| 4174139 | Bearing assembly with improved contactor The bearing assembly includes a bearing and a member mounted in the bearing and adapted for movement relative thereto. The bearing has a window therein and a contactor is positioned to substantially fill the window. There is a housing means for defining a... | 11/13/1979 |
| 4055370 | Dynamoelectric machine lubrication system and method of assembling the same An illustrated lubrication arrangement substantially prevents end leakage oil from flowing along the shaft to an oil thrower, and also causes end leakage oil to recirculate through wicking material to a feed wick which in turn feeds oil to a bearing clear... | 10/25/1977 |