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 |
| 7159772 | Apparatus and method for mounting an RF tag on a conveyor trolley A system for mounting an RF tag to a conveyor trolley wherein the tag is embedded in a block of material shaped to fit within an annular recess formed between the hub and outer rim of the trolley wheel. The shaped block is secured to the wheel. ... | 01/09/2007 |
| 6547128 | Hub odometer A hub odometer is disclosed, which includes: an eccentric weight rotably supported in a center axis position of an axle hub; a case attached to the axle hub to surround the eccentric weight; a non-contact measuring mechanism disposed to measure the number... | 04/15/2003 |
| 5069624 | Contact arrangement for electrical interrogation of the data of a wheel revolution counter A contact arrangement for interrogating the data and counting values of a wheel revolution counter. The contact arrangement is accessible from the outside at an otherwise hermetically closed housing. The wheel revolution counter is conventionally fastened... | 12/03/1991 |
| 5003704 | Distance measuring device and method for use with vehicles A means is provided for measuring distance travelled by a vehicle having a wheel coupled to a vehicle axle disposed within a vehicle axle housing, with the wheel haivng at least one nonmagnetized metal region which rotates with the wheel defining an orbit... | 04/02/1991 |
| 4989222 | Electronic hubodometer A hubodometer (10) for attachment to a vehicle's wheel structure for sensing a rotation of the wheel structure and for converting the sensed rotation to a distance travelled. The hubodometer comprises an outer housing (12) having a permanent magnet (28) a... | 01/29/1991 |
| 4970802 | Wheeled measuring device A wheeled measuring device having selectively usable and positionable hub elements for use with a plurality of different measuring wheels and corresponding gearing for utilization of a counter to provide different readouts in effecting desired measurement... | 11/20/1990 |
| 4918295 | Combination hubodometer protective housing and step A combination hubodometer protective housing and step assembly having a cylindrical metal housing, to which the hubodometer is mounted, and a cylindrical metal adapter, which couples the housing and hubodometer to the axle of a wheel for rotation therewit... | 04/17/1990 |
| 4697278 | Electronic hub odometer An electronic hub odometer employs a permanent magnet and a magnetic reed switch for recording the number of revolutions of a vehicle wheel to which the odometer is mounted. A programmable integrated circuit electrically communicates with a clock crystal ... | 09/29/1987 |
| 4680454 | Odometer for golf cart An odometer for use by a golfer in the measurement of distance covered by each shot. The odometer attaches to the wheel of the cart and counts revolutions or parts of a revolution of the wheel through the use of a magnetic head that rotates past a Hall ef... | 07/14/1987 |
| 4563574 | Hub odometer A hub odometer having a protective case adapted to be mounted axially on an axle cap of a vehicle with a substantially cylindrical carrier plate rotatably mounted in the case for supporting a counting mechanism having figure wheels. The shaft of the figur... | 01/07/1986 |
| 4506147 | Hubodometer adapted for selectable gear ratios A hubodometer having a wide range of selectable gear ratios so that the same basic structure can be used to indicate distance traveled by wheels of greatly different wheel diameters in either miles or kilometers. The hubodometer has an elongated bore exte... | 03/19/1985 |
| 4430561 | Hubodometer A hubodometer having a casing supported solely by, and balanced on, its mounting bracket by a ring-like shock mount. Additionally, an odometer mechanism assembly is carried by, and balanced on, a drive-gear shaft located within the casing on the axis of r... | 02/07/1984 |
| 4308453 | Odometer for a vehicle An odometer i.e. a distance recorder, for a vehicle has a counting mechanism driven by a stepping mechanism which is in turn driven with rotation of a vehicle wheel. The stepping mechanism has a plurality of pawls which reciprocate with wheel rotation and... | 12/29/1981 |
| 4156131 | Hub odometer damping mechanism A hub odometer having a pendulous recording mechanism with loose ball anti-orbiting means with two damping balls mounted within a radial ball track diametrally of the center of gravity of the pendulous recording mechanism and having a width in the circumf... | 05/22/1979 |
| 4103332 | Mile post location display system The specification discloses a mile post location system which can be adjusted in accordance with a particular vehicle having a citizens band radio. The system includes circuitry for generating a distance signal in response to rotation of a wheel of the ve... | 07/25/1978 |
| 4101762 | Recording distance measuring instrument at vehicle wheel hub A hub meter for recording distance covered includes a housing and counter both of which rotate, along with a hub of a wheeled vehicle. A shaft is held generally stationary, with respect to the hub by an annular pendulum, fixed to the shaft and containing ... | 07/18/1978 |
