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 |
| 7343873 | Step voltage regulator polymer position indicator with non-linear drive mechanism A position indicator may include a position indicator display and mechanism. A polymer housing houses the position indicator display and mechanism and a one-piece clear polymer cover encloses the position indicator display and mechanism in the polymer housing. The p... | 03/18/2008 |
| 7322744 | Temperature measurement device A temperature measuring device includes a temperature-responsive element that mechanically moves a first inductive assembly component relative to a second inductive assembly component in response to temperature changes. The movement of the first inductive assembly c... | 01/29/2008 |
| 7305932 | Pointer instrument with a double pointer A pointer instrument has two instrument mechanisms arranged independently of one another on a printed circuit board such that the printed circuit board in between the two instrument mechanisms. Each of the instrument mechanisms act on an associated pointer. To minim... | 12/11/2007 |
| 7232961 | Portable hand held luggage weight and size measurement device A portable hand held device for weighing and measuring the size of a luggage item includes a handle designed to provide support yet comfort with respect to the use of the weighing device and further includes a mechanism which enables recordal of the weight of luggag... | 06/19/2007 |
| 7080942 | Bimetal thermometer The bimetal thermometer according to the invention comprises a bimetal helix arranged inside a protective tube, one end thereof being attached to the protective tube and the other end thereof being connected to a pointer shaft to which a pointer arranged inside a ca... | 07/25/2006 |
| 7066644 | Apparel indicating thermometer The apparel indicating thermometer has a housing, a circular dial board disposed within the housing, a pointer situated on the face of the dial board, and a thermometer movement attached to a back surface of the housing. The thermometer movement has an arbor which r... | 06/27/2006 |
| 7004032 | Pressure gauge measuring multiple pressure values A method for measuring multiple pressures by a single gauge (6) for simultaneously measuring separate pressures by respective pressure sensing elements (7, 8); and simultaneously indicating measurements of the separate pressures by respective pointers ... | 02/28/2006 |
| 6234106 | Position indicator A position indicator for a motor drive for actuating a step switch, tap changer, or dipping coil, has a display board having front and back faces and a first circular array of symbols on the front face corresponding to individual switching phases traverse... | 05/22/2001 |
| 5650566 | Pressure gauge showing a current and a preset pressure A pressure gauge includes a base portion on which a cap is mounted, the base portion having a first indicating needle rotatably disposed to a center thereof, a frame disposed to the base portion and having two tubes extending therefrom, two activating bar... | 07/22/1997 |
| 4196690 | Device for indicating the maximum reading of a measuring instrument A device for indicating the maximum reading of a measuring instrument of the type having a needle turnable over a dial marked with a graduated scale extending for more than 360° includes an auxiliary needle mounted on a pivot pin carried by a transparent... | 04/08/1980 |
| 3996881 | Rotary indicating instrument with magnetic reset A rotary hand indicating instrument including a maximum hand and having a solid crystal formed with stub shafts projecting axially from its front and rear faces, upon which shafts the maximum hand and associated magnetic resetting control elements are mou... | 12/14/1976 |
