Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7509754 | Caliper A caliper includes a first leg and a second leg pivotably connected together at first ends thereof. First and second abutting portions are respectively formed on second ends of the first and second legs. First and second slots are respectively defined in the first a... | 03/31/2009 |
| 7293363 | Dual line protractor for biometric measurements A dual line protractor fixed to a central axis which has two housings, each housing having a spool with retractable lines, the housings and spools being rotatably attached to the central axis. The spools and housings rotate independently of each other on the central... | 11/13/2007 |
| 7275336 | Distance measuring instrument for pedicle screws The invention relates to a distance measuring instrument for pedicle screws which detects the spacing between two pedicle screws (3, 3′) with the ends (26, 27) of two crossing limbs (11, 12) and displays it on a cross-bar (25) fixedly c... | 10/02/2007 |
| 7178260 | Measuring head A unit damper apparatus 18 is used as a damper apparatus 18 which absorbs an impact and a vibration conveyed from a contact 14 to a seesaw member 12, and a structure of this unit damper apparatus 18 is the structure which absorbs c... | 02/20/2007 |
| 7127938 | Measuring head A unit damper apparatus 18 is used as a damper apparatus 18 which absorbs an impact and a vibration conveyed from a contact 14 to a seesaw member 12, and a structure of this unit damper apparatus 18 is the structure which absorbs c... | 10/31/2006 |
| 7051451 | Facet joint prosthesis measurement and implant tools The present invention provides tools and methods designed to aid in the placement of facet joint prosthesis at virtually all spinal levels. One aspect of the present invention is a measurement tool for installing a cephalad facet joint prosthesis including a fixatio... | 05/30/2006 |
| 6948252 | Light projecting goniometer This device is a handheld, battery-operated instrument that utilizes light beams to project visible lines for increasing the accuracy in determining angles. A linear potentiometer is incorporated at the pivot point between the two diodes and measures a voltage chang... | 09/27/2005 |
| 6916325 | Femoral sizing guide A sizing guide for facilitating the sizing of prosthetic devices that are implanted. The sizing guide is designed for consistent mounting at a fixed anatomical reference point to facilitate accurate and repeatable sizing estimations for a variety of bone types and s... | 07/12/2005 |
| 6766583 | Tool to measure and set angles using calipers or other linear measuring devices This invention provides an angle gauge that, when used in conjunction with a caliper or other linear measuring device, improves both the precision and ease with which angles can be measured and set by allowing the user accurately to measure and set angles in fractio... | 07/27/2004 |
| 6694636 | Electrocardiogram compass The specification discloses a compass for obtaining measurements from an electrocardiogram tracing, the comprising a compass body, a display screen, compass legs pivotally connected to the body, and a computer operatively coupled to the display screen. Th... | 02/24/2004 |
| 6381864 | Gauge especially adapted for measuring the frame height of race cars and method of using the same An improved frame height gauge for race cars includes a substantially hollow housing having an open top end. A spring urges a stop member pivotally mounted within the housing to an extended position in which the stop member projects through the top openin... | 05/07/2002 |
| 6301799 | Electronic fat gauge An electronic fat gauge includes a main body and a clamping lever pivotally mounted on the main body. The clamping lever includes a shorter depressing arm and a longer measuring arm extended from a middle pivot portion of the clamping lever in opposite di... | 10/16/2001 |
| 5454175 | Internal caliper A caliper gauge comprised of an elongated body having a pistol-type grip formed at one end and a caliper arm formed at the other end. An elongated slot is formed in the body adjacent the pistol-type grip, and an opening extends through the body communicat... | 10/03/1995 |
| 5345309 | Precision three dimensional profiling and measurement system for cylindrical containers A system for generating a solid model of the sidewall of the container. A mandrel selectively holds the container in first and second locations. In the first location, a non-contact measurement apparatus utilizing a digital camera produces digital informa... | 09/06/1994 |
| 5210955 | Cylinder bore measuring apparatus A unique measuring apparatus designed especially for measuring the interior diameter of cylinder bores. The apparatus includes a divider-like measuring tool that provides both a coarse measurement scale and a dial indicator to enable highly accurate measu... | 05/18/1993 |
| 5203091 | Caliper apparatus A caliper arrangement includes a first leg member pivotally mounted to a second leg member. The first leg member includes a C-shaped first leg in confronting relationship in a coplanar orientation relative to a C-shaped second leg. The pivot axle pivotall... | 04/20/1993 |
| 5070623 | Prosthetic gauge A manually operated gauge for the simultaneous measurement of two orthogonal diameters of a spherical member. The gauge comprises four uniquely shaped bars all pivotably connected together about four parallel pivot axes, the bars arranged to enclose a mea... | 12/10/1991 |
| 4908955 | Direct reading gauge for the measurement of fasteners and fittings A tool adapted to be manipulated single-handed for providing a direct reading of the size of small objects, particularly nuts and bolt heads. The tool includes a pair of tongs which are activated by a thumb slide. The latter is disposed in a slot formed i... | 03/20/1990 |
| 4761887 | Temperature insensitive gauge A temperature insensitive gauge is disclosed. The temperature insensitive gauge includes a frame having a first and second caliper assembly movably mounted on the frame. The first and second caliper assemblies engage a workpiece. A mechanism for measuring... | 08/09/1988 |
