Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8162083 | Crawler device and automatic attitude control of the same Theme To provide a small-sized crawler device that can stably ride over bumps or steps or stairs. Means to Solve The crawler device includes a device body (1) having main crawlers (20) on its left and right and auxiliary crawlers (... | 04/24/2012 |
| 8014050 | Agile holographic optical phased array device and applications A device that provides light beam switching, agile steering of the light beam over a range of angles, and generation of arbitrary wavefront shapes with high spatial and temporal resolution. The agile device can include a volume diffractive structure comprising Bragg... | 09/06/2011 |
| 7983868 | Fitting measured data points to tolerance zones having regard for the uncertainty of the measurements Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated wi... | 07/19/2011 |
| 7982917 | Document containing scanning survivable security features A document comprising a latent security image that is visible when the document is reproduced after being scanned by a standard commercial bank scanner. The security image comprises a plurality of lines, dots, or spots having a frequency and a density such that the ... | 07/19/2011 |
| 7791731 | Partial coherence interferometer with measurement ambiguity resolution A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. A... | 09/07/2010 |
| 7549272 | Sorbent canister with beveled edges A sorbent canister having a hollow body and porous end caps fused to opposite ends of the hollow body includes beveled surfaces at the fused sites to aid in the dispensing of the canisters into product packaging. ... | 06/23/2009 |
| 6932031 | Scavenging system for intermittent linear motor The intermittent linear motor of this invention incorporates features which enhance the exhaust scavenging and cooling processes, as well as simplifying overall construction including a compression plenum below the piston where air displaced during a power stroke by... | 08/23/2005 |
| 6840033 | Combustion chamber system A combustion chamber system of a spark-ignition linear engine includes a pre-combustion chamber and a main combustion chamber separated by a combustion control wall. The pre-combustion chamber has a length substantially greater than its width to support the propagat... | 01/11/2005 |
| 7536053 | Method and apparatus for the correction of nonlinear field of view distortion of a digital imaging system Nonlinear distortions of imaging optics within a computer vision system are quantified as corrective values within a viewing window defined by a pixel array. A test artifact is displaced within an object plane through increments of measured distances and the corresp... | 05/19/2009 |
| 7421818 | Firearm mount with embedded laser sight A laser sight is embedded in a mounting rail otherwise used for attaching accessories to small arms discharge devices such as pistols or rifles. The mounting rail has a transverse profile that extends along an axis of the mounting rail for engaging mating features o... | 09/09/2008 |
| 7176916 | Object identifying system for segmenting unreconstructed data in image tomography Tomographic projection data is segmented spatially by forming segmentation masks over the full outlines of objects appearing in isolation within selected data frame images. Further processing locates the object outlines in other data frames. Predictable effects of a... | 02/13/2007 |
| 7152446 | Method of forming internal gear, and internal gear At the time for forming an internal gear from a raw material 2 of an internal gear, first, the raw material 2 is externally inserted onto a forming die 3 and fixed to the forming die 3 through a pressing die 4. Next, a forming roll... | 12/26/2006 |
| 7133207 | Micro-display engine Virtual displays with micro-display engines are arranged in compact, lightweight configurations that generate clear virtual images for an observer. The displays are particularly suitable for portable devices, such as head-mounted displays adapted to non-immersive or... | 11/07/2006 |
| 7130059 | Common-path frequency-scanning interferometer Frequency-scanning interferometry is applied to common-path interferometers for measuring topographical features of test objects. A reference element located adjacent to a test object functions as both a beamsplitter and a reference surface. A first portion of a mea... | 10/31/2006 |
| 7111637 | Enclosure system for pressure relief device An enclosure for a pressure relief device, particularly pressure relief devices mounted on electrical equipment housings, is pre-assembled together with the pressure relief device. The enclosure, which provides for temporarily confining and directing fluids discharg... | 09/26/2006 |
| 7104913 | Differential gear device for vehicle A carrier is formed with a circular cylindrical supporting part 4a. This supporting part 4a is formed with a receiving hole 4b. A planetary gear 5 is rotatably received in the receiving hole 4. One side part in... | 09/12/2006 |
| 7105849 | Hydrocarbon fluid analysis module Apparatus and method for quantifying the oil and water fractions of a multi-phase flow stream and their respective flow rates. The hydrocarbon fractions are determined based on information gathered on their respective refractive indices when exposed to particular wa... | 09/12/2006 |
| 7097585 | Differential gearing for vehicle An internal gear 10 is rotatably received within a housing 8 (planetary carrier 2 and case 4), and a sun gear 12 is rotatably disposed on a circle located inside of and concentric with the internal gear 10. Planet gears 1... | 08/29/2006 |
| 7086985 | Differential gear device for vehicle An internal gear 4 and a sun gear 5 are arranged on one end side and the other end side within a housing 1 which is driven for rotation about a rotation axis L. The internal gear 4 and the sun gear 5 are rotatably disposed about th... | 08/08/2006 |
| 7077332 | Media verification system A unique conductivity pattern is applied to printable articles to provide a “signature” for later verifying the authenticity of the printable articles. Preferably, the conductivity pattern is hidden from sight and differs from other conductivity patterns applied... | 07/18/2006 |
| 7069685 | Diffractive head up display for firearms A head up display for firearms is provided, wherein a light valve is employed to create variable images in response to user input. The images from the light valve are entrained in an illuminating beam which intersects a diffractive optic. The diffractive optic inclu... | 07/04/2006 |
| 7059792 | Dispensing system for print media having differential perforation pattern A web of print media dispensable as individual sheets along lines of perforation includes a pattern of ties and slits that provide a more predictable resistance to manually separating the sheets from the web. The lines of perforation extend transversely with respect... | 06/13/2006 |
| 7057742 | Frequency-scanning interferometer with non-specular reference surface A frequency-scanning interferometer is modified to include a diffuse reference surface. An illuminating system produces an expanding measuring beam, portions of which reflect from a test object surface and the diffuse reference surface on converging paths to an imag... | 06/06/2006 |
| 7048980 | Meat label A label is bonded to the inner ply of a two ply barrier film in which an outer ply of the barrier film is removable, leaving the label in place against the inner ply of the barrier film. ... | 05/23/2006 |
| 7047600 | Egress 4-bar hinge assembly An egress 4-bar hinge assembly having two load-bearing links that pivot about spaced-apart bearing pivot points, wherein an entire length of at least one of the links overlies a planar bearing surface. The two links include a cooperating interface selected to engage... | 05/23/2006 |
| 7006219 | Biological imager Apparatus and method for quantifying the biological components of a biological system having at least two different refractive indices through detection of wave front distortions. The biological component fractions are determined based on information gathered on the... | 02/28/2006 |
| 6997145 | Recycler for linear motor A recycling system for linear motors includes a dual piston within a cylinder housing that is moved from an upper position to a lower position by combustion pressure such that a first portion of the piston pumps compressed air from a first air chamber within a first... | 02/14/2006 |
| D513031 | Virtual display eyeglasses | 12/20/2005 |
| 6935981 | Two-speed torque-splitting interaxle transfer case An interaxle transfer case distributes drive power from an input drive shaft to both a rear propshaft aligned with the input drive shaft and to a front propshaft that is offset from both the input drive shaft and the rear propshaft. Within the transfer case, a plane... | 08/30/2005 |
| 6912988 | Multiple-front combustion chamber system with a fuel/air management system A combustion chamber of a positive-displacement spark-ignited internal combustion engine is divided into a main combustion chamber and a pre-combustion chamber having proximal and distal ends. The proximal end is connected to the main combustion chamber and a spark-... | 07/05/2005 |
| 6907924 | Thermally conductive chuck for vacuum processor A chuck body mounts a substrate within a vacuum chamber. Contiguous portions of the substrate and the chuck body form a heat-transfer interface. An intermediate sealing structure seals the chuck body to the substrate independently of any contact between the chuck bo... | 06/21/2005 |
| 6896296 | Irreversible metal film display Display information is revealed from behind a metal film that can be cleared upon effective contact with a clearing agent. The metal film, while opaque, is generally less than 1000 Angstroms thick and can be cleared by exposure to innocuous agents including food or ... | 05/24/2005 |
| 6896268 | Shaped seal for sealing a power-operated closing device The invention relates to a shaped seal for sealing a power-operated closing device comprising a jam-protection zone, which has at least two electrically conductive areas, situated at a distance from each other. According to the invention, to save space and reduce we... | 05/24/2005 |
| 6887179 | Planetary gear apparatus A carrier 2 is fixed to one end opening part of a circular cylindrical apparatus main body 1. A plurality of receiving holes 2d, which extend in parallel with a rotation axis L, are formed in the carrier 2 at the same interval in a... | 05/03/2005 |
| 6874452 | Resonant combustion chamber and recycler for linear motors A combustion chamber system for a spark-ignited linear motor includes an open-ended primary combustion chamber located within a secondary combustion chamber. An unrestricted opening between the primary and secondary combustion chambers provides for more efficient sc... | 04/05/2005 |
| 6874612 | Media dispenser for vending machines Variably printed media units from an uninterrupted supply are dispensed from vending machines in association with the dispensing of products or services from the machines. The media units, which can take a variety of forms including coupons, vouchers, tickets, colle... | 04/05/2005 |
| 6866607 | Planetary gear device A receiving portion 2e for rotatably receiving therein a planetary gear 3, is formed between a plurality of retaining protrusions 2d of a carrier. A connection portion 2f extending annularly about a rotation axis L is... | 03/15/2005 |
| 6859326 | Random microlens array for optical beam shaping and homogenization Microlens arrays are defined with microlens elements that differ from each other in accordance with a probability distribution for shaping an optical beam having a prescribed intensity profile within a desired far-field scatter pattern. The differences include rando... | 02/22/2005 |
