Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7458170 | Automatic cord length measuring device An apparatus that accurately measures rope, wire, tubing and other materials is herein disclosed. A variety of different-sized models would possess different sized openings. One model with a one-inch opening would be used to measure small wire and cable. Another mod... | 12/02/2008 |
| 7377051 | Coiled tubing counter A tubing counter for counting coiled tubing inserted into a well includes an outer housing having a through passage for receiving the coiled tubing therethrough. In some embodiments, pressure rated connectors at both of the ends of the outer housing sealably connect... | 05/27/2008 |
| 7350313 | Device for cutting and marking a metal cable Device for cutting and marking a metal cable (16), comprising means (12, 18) for cutting the cable (16) and marking means (20) for marking the cable (16) with a mark at a predetermined distance (d) from the cutting plane (C), cutti... | 04/01/2008 |
| 7263782 | Cable actuated position sensor with spring located inside the cable drum As a rule, measuring cable position sensors consist of an axial arrangement of flat spiral spring, cable drum, and encoder. By locating the flat spiral spring within the interior of the cable drum, the construction length is reduced on one hand, and it becomes possi... | 09/04/2007 |
| 7216439 | Length measuring method and device Devices configured to measure a length of rope moving through the device are disclosed. The devices of the present invention employ a sheave mounted for rotating within a housing. A rotation measuring assembly may determine the number of rotations of the sheave, and... | 05/15/2007 |
| 7173197 | Handheld fish measuring apparatus with integral camera A handheld apparatus for measuring fish, game, and the like is provided and includes a scale, a camera, and a length measuring device. The scale includes a support member that extends outwardly from the apparatus housing, and a display that is visible through the ho... | 02/06/2007 |
| 7007399 | Conduit measuring tool—device for measuring the length of electrical conduit My invention described is an electronic and mechanical tool used to measure jet line or string for the purpose of measuring electrical conduit lengths. This new process eliminates the manual labor required before calculating how long the conduit is and how much feed... | 03/07/2006 |
| 6209852 | Removable chain hoist position encoder assembly A chain hoist having a casing into which and with respect to which a chain travels is provided with an externally mounted position encoder assembly. A releasable connector, such as a ratchet strap, is employed to firmly but removably couple the position e... | 04/03/2001 |
| 5438762 | Means to establish and maintain an engagement chord for pliable and inflatable members in a desired plane in a measuring apparatus A measuring device having a mounting arrangement for adjusting the space relationship between first and second shafts in a housing to maintain an engagement chord created between first and second inflatable and pliable members in the plane of the path of ... | 08/08/1995 |
| 5351531 | Depth measurement of slickline A depth measuring system for a slickline utilized in a well bore operation where the slickline is in a non-slip relationship with the circumference of a calibrated measuring wheel and the revolutions of the wheel are utilized to provide a first length mea... | 10/04/1994 |
| 5152158 | Apparatus for measuring and controlling the amount of yarn withdrawn from a warp beam of a warp knitting machine An apparatus for measuring and controlling the amount of yarn withdrawn from the warp beam of a warp knitting machine is disclosed. A pressure roll engages the yarn wound on the warp beam. The pressure roll drives a second drive roll connected to a signal... | 10/06/1992 |
| 5065527 | Length measuring and positive drive apparatus A mechanism for accurately measuring the length of a continuously produced product, i.e. cable, hose, chord, tube, rope, strip, wire, fiber and etc. The mechanism has a housing for retaining first and second shafts. A first rotatable member attached to th... | 11/19/1991 |
| 5048196 | Position sensing arrangement in a working device A guided working device (1) is driven by an operable traction motor (2) for movement along a travel rail (3). The working device carries a driver (4) provided with articulated heads for a measuring carriage (5), which measuring carriage always travels the... | 09/17/1991 |
| 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 |
| 4798003 | Thread measuring device A thread meter comprising a holder for a thread reel, a counter provided with a rotary measuring wheel and guides for a thread, and an outer casing for enclosing said details. The invention is characterized in that a first guide (19) for a thread (20) is ... | 01/17/1989 |
| 4715550 | Method and apparatus for controlling the effective length of thread packages An apparatus for controlling the effective length of thread wound into a thread package during a winding operation includes a sensor which senses the rotation of a driving roller that drives the package being wound and issues signals representative of the... | 12/29/1987 |
| 4635216 | Length measuring device for a thread A length measuring device for thread-like structures, especially textile threads, which are wound onto a cross-wound package or bobbin, possesses a substantially greater accuracy than heretofore known length measuring devices due to a more exact allowance... | 01/06/1987 |
| 4598479 | Timing wheel for card encoder Apparatus for magnetically encoding a card which includes a timing wheel frictionally engaging the card as the card is moved along a slot. The wheel has about its peripheral annulus a series of evenly spaced magnetic timing bits which are read out by a re... | 07/08/1986 |
| 4570348 | Measuring apparatus Apparatus for measuring length of an elongate cable. A frame having a hole therethrough includes a pair of rollers mounted for rotation thereon. The circumferences of the rollers are rollingly engaged with one another over the hole and a cable which is to... | 02/18/1986 |
| 4382336 | Line length measuring device Length of a line or, more particularly, depth of a fishing line is digitally indicated by a fishing depth gauge when a clip mounting bracket carries thereon a digital counter activated by cooperation between a fishing line paid out from a rod and a counte... | 05/10/1983 |
| 4373266 | Equipment for continuously measuring the length of an endless material being wound up into a circular package Equipment for continuously measuring the length of an endless material, such as a yarn, which is being wound up on a machine into a circular package, the machine comprising a movable member whose position depends upon the diameter of the package. The meas... | 02/15/1983 |
| 4085509 | Apparatus for compensating for the heaving of a floating drilling platform for connection with apparatus for measuring the rate of penetration of pipe run into an offshore well Apparatus adapted to compensate for the heaving of a floating offshore drilling platform, which heaves relative to the ocean bottom due to wave action of the water in which the platform is floating, which heave-compensation apparatus is adapted to be conn... | 04/25/1978 |
| 3972124 | Device for measuring the length of a member A device for measuring the length of a tubular member as it is run into or pulled from a well bore includes a support means which defines ends in spaced relation. Elastomer members are secured on each of the ends with axially, aligned openings therein for... | 08/03/1976 |
