...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 |
| 7997317 | Hub-enclosed tire pump A tire pump that is housed within the hub of a wheel is described. The pump includes a piston that moves axially with respect to the wheel's axle. The pump also includes a pressure switch configured to stop the pump when sufficient tire pressure is reached. ... | 08/16/2011 |
| 7581576 | Automatic air-feeding mechanism for pneumatic tire To provide an automatic air-feeding mechanisms which can produce a large amount of compressed air with a small number of rotations of a wheel body and with a small force. The automatic air-feeding mechanisms has first and second compressed air producing sections ... | 09/01/2009 |
| 7161476 | Electronic tire management system An electronic tire maintenance system is provided for measuring a parameter of a device at a first location. The system includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter. The system also includes a ... | 01/09/2007 |
| 7117910 | Air supply device, wheel, and tire unit An air supply device is provided on a rotating body having an air filling portion into which air is filled. The air supply device has a device body provided with a cylinder, and a piston mounted movably in the cylinder, the device body being joined at the middle of ... | 10/10/2006 |
| 7059372 | Assembly for inflating a tire An assembly for inflating a tire includes a pump assembly that includes a housing having an air inlet and an air outlet. A conduit is fluidly coupled to the air outlet. The housing has a first end wall, a second end wall and a peripheral wall. A bracket is attached ... | 06/13/2006 |
| 6994136 | Wheel end tire air pump A wheel end assembly includes a self-contained air pump mechanism that maintains tire pressure at a desired level. The pump mechanism includes a piston and cylinder assembly that rotate with the tire. A linkage assembly drives the piston within the cylinder as the w... | 02/07/2006 |
| 5667606 | Tire pressurizing and regulating apparatus An apparatus for pressurizing a pneumatic tire mounted on a vehicle wheel which includes a displacement type air pump having a spring loaded piston and cylinder combination for generating air under pressure. The air pump is axially attached to the vehicle... | 09/16/1997 |