Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8122898 | High-pressure apparatus and method for removing scale from a tank A rotating and telescoping cleaning system improves high pressure water cleaning of the inner surfaces of vessels or tanks. Vessels can be vertically divided with dividing plates with centered through-holes. Synchronized and controlled transverse and rotary movement... | 02/28/2012 |
| 8085617 | System and method for reducing the effects of ghosts from the air-water interface in marine seismic exploration A system mechanically alters the geometry of the surface of the water by breaking the water surface with a mechanical device. The mechanical device may comprise a plurality of propellers, a plurality of aquafoils in the shape of plows, a wire whip, or other mechanic... | 12/27/2011 |
| 8083865 | Tube lancing machine A pair of parallel metal lances is driven by a transversal drive into and out of heat exchanger tubes. The lances are supported by a plurality of spaced apart, retractable door supports so that the transversal drive mechanism can approach the tube sheet of the heat ... | 12/27/2011 |
| D649511 | Charcoal briquette | 11/29/2011 |
| D649510 | Charcoal briquette | 11/29/2011 |
| 7983742 | Multi-channel system for beat to beat QT interval variability A PC-based ECG software program that in real time, acquires, analyzes and displays QTV and PQ interval variability (PQV) in each of the independent channels that constitute the 12-lead conventional and/or Frank X, Y, Z lead ECG. The system also analyzes and displays... | 07/19/2011 |
| 7770526 | Railcar man-way cover lift-assist system A lift-assist system for a man-way cover includes a unitary spring mounted to the axis of rotation for the man-way cover. The spring includes a coil portion on either side of the axle of rotation, with a unitary bridge portion spanning between the coil portions. The... | 08/10/2010 |
| 7749308 | Method for reducing hydrocarbon emissions A system for recovering and recycling otherwise vented or flared volatile and non-volatile reactive organic materials from pipeline and plant operations associated with oil and gas recovery, refining and petrochemical manufacture, processing and transportation inclu... | 07/06/2010 |
| 7721570 | Primary spacer emblematic for a golf ball marker An ornamental device comprising a primary rigid plate with a space between the primary rigid plate and the surface of an object such as an article of clothing or cap, the space providing a receptacle to releasably hold a secondary rigid ball marker either frictional... | 05/25/2010 |
| 7630447 | System of communication between synchronized submarine devices The invention relates to a system and a method of digital communication between synchronized submarine devices, system including means of sending a signal in modulated bit form, at least one sender (100) and at least one receiver (200), characterized i... | 12/08/2009 |
| 7614907 | Contact terminal with self-adjusting contact surface A self-adjusting contact includes a plurality of conductive fibers, such as wires, arrayed along an axis perpendicular to the major plane of the battery terminal. The contact may include straight or corrugated wires, aligned substantially along the axis. The wires m... | 11/10/2009 |
| 7612886 | Fiber-optic seismic sensor The invention relates to a fiber-optic seismic sensor (200) with a test body (110), characterized in that the test body (110) comprises several separate dishes (113, 114, 115, 116) that are distributed around the direction of the sensitiv... | 11/03/2009 |
| 7523644 | Method and apparatus for verifying the integrity of a joint seal A system for verifying the integrity of a seal comprises an elastomeric seal on either side of a metal sealing gasket. A pressure test penetration is provided into an axial channel at a position between the metal sealing gasket and the lower of the elastomeric seals... | 04/28/2009 |
| 7502120 | Fiber optic interferometric sensor array The invention relates to an apparatus for multiplexing Fiber Optic Interferometric Sensors (FOISs), which apparatus comprises means (1) forming the an optical source for providing m*n distinct wavelengths λ11, λ12, . . . , λ1n, λ... | 03/10/2009 |
| 7474591 | Six-component seismic data acquisition system A seismic data acquisition system includes a plurality of sensors which are arranged so they can be used to measure translation movements of a medium with three independent spatial components and of the rotation movements around each of the three independent spatial... | 01/06/2009 |
| 7472429 | Stationary guard and brace for a baseball cap-type visor A visor guard and brace adapted to shape and protect the visor of a baseball cap is provided. The brace is preferably comprises a rigid “U” shaped plate slid over the edge of the visor. The brace releasably attaches and constrains the surface of the visor and fo... | 01/06/2009 |
| 7421757 | Pump valve mechanism A method for cleaning tubes and heat exchangers provides an oscillating pump/valve mechanism to provide a periodic waveform of shocks to fouled tubes. Preferably, a pair of pneumatic control valves operates an actuator to oscillate a valve within a valve block, and ... | 09/09/2008 |
| 7418744 | Noise reducing float for toilet bowl A float with a mesh over it floats on the surface of the water in a toilet bowl. The float is preferably toroidal and the mesh is held by the toroid by a distance above the water in the toilet. The toroidal float is preferably circular or tear drop shaped in cross s... | 09/02/2008 |
| 7382689 | Flexible hydrophone A hydrophone includes a body formed of a flexible, plastic material. The body includes a plurality of channels and each channel may have one or more wells. The wells are adapted to receive an active element which includes mounting hardware. The mounting hardware inc... | 06/03/2008 |
| 7319638 | Hydraulic oscillator for use in a transmitter valve An oscillating valve driven by the pressure in a mud pulser develops a pressure variation in the mud pulse signal that is at a frequency that is different than the frequencies of the mud system. The oscillating valve is coupled to or integral with the pulse drive cy... | 01/15/2008 |
| 7306001 | Cleaning apparatus with cavitation enhancement unit A method for cleaning tubes and heat exchangers provides a cavitation enhancement unit between a source of pressurized fluid an a lance. The pressurized fluid flows through jets, which impart a high speed rotation to a set of propellers, preferably square in profile... | 12/11/2007 |
| 7270190 | Variable size coil tubing gripping elements A variable ram for coiled tubing comprises a pair of opposing rams, each ram having a ram body with a vertical channel formed therein; a pair of opposing pins within each ram head, the pins extending into the channel; and a toothed gripper having a hole therein size... | 09/18/2007 |
| 7261155 | Cable side-entry sub with grease injection flow tubes An integrated side-entry sub with grease injection flow tubes is adapted for making up in a drill string and includes a port to receive a cable, such as a wire line. A first pedestal, mounted within a cutout of the side entry sub, provides entry for the cable into t... | 08/28/2007 |
| 7255670 | Three phase decanter centrifuge A three-phase decanting centrifuge is provided. Solids are removed from a slurry in the centrifuge in the conventional manner, as described above. The liquid separated from the slurry moves into a fluids reservoir. Centrifugal action classifies the fluids, with ligh... | 08/14/2007 |
| 7249383 | Method of detecting piracy of proprietary material A method is provided for detecting and tracking piracy of proprietary materials marketed and distributed on various types of media and multi-media products. A particular media product is assigned a product identification number, and each copy of the media product is... | 07/24/2007 |
| 7181808 | Buckle or clasp A fastener is adapted to retain one or more holes of a belt or strap beneath a belt frame without passing through the frame. The fastener comprises primarily a frame and a back plate, coupled together for relative rotational movement about an axis parallel to the ax... | 02/27/2007 |
| 7143115 | Method and apparatus for finding differences between two computer files efficiently in linear time and for using these differences to update computer files A method of updating a computer file from an old file into a new file comprises blocking the new file and the old file into fixed-size blocks, maintaining a window (collection of contiguous blocks) for each file on which lookup preprocessing has been performed, and ... | 11/28/2006 |
| 7123201 | Radar antenna leveling system A remotely controllable, tiltable platform supports a radar transmitter/receiver for rotational movement of the radar relative to a mounting on a vessel, such as a mast of a sailboat or the superstructure of a power boat. A cowling extends upward from the foundation... | 10/17/2006 |
| 7025580 | Method and apparatus for lining a conduit Method and apparatus for installing a liner material into a host conduit such as, e.g., a sewer pipe, hydrocarbon pipeline, gas line, water line, industrial chemical pipe, or a saltwater line. The liner material may include a compression liner and/or a preliner that... | 04/11/2006 |
| 7026627 | Neutron/gamma ray survey instrument with directional gamma ray sensitivity A portable survey instrument and methodology yield intensity of neutron radiation, intensity of gamma radiation, and a direction of impinging gamma radiation. The instrument uses a neutron detector surrounded by an essentially rectangular moderator with preferably f... | 04/11/2006 |
| 7016524 | System for authenticating and processing of checks and other bearer documents A bearer document processing system includes preparation, verification, redeeming and depositing of the document. An encrypted symbol is imprinted on the document using ink that is not visible in invisible light. The symbol includes information used to authenticate ... | 03/21/2006 |
| 7001324 | Method of retrofitting a decanting centrifuge A method of retrofitting a centrifuge is provided. The method includes disassembling a known centrifuge and replacing a bowl section of the centrifuge outer body with a longer bowl section. The method further comprises replacing the conical beach section with a shor... | 02/21/2006 |
| 6959603 | Ultrasonic testing system and method A comprehensive system for the cleaning, inspection, and testing of tubulars, particularly riser pipes, is provided. In a first aspect, a method of inspecting a tubular comprises cleaning, visually inspecting, corrosion mapping, and TOM testing the tubular. In anoth... | 11/01/2005 |
| 6957147 | Data management for seismic acquisition using variable compression ratio as a function of background noise A seismic data acquisition unit includes a data acquisition and digital circuit which receives an analog seismic signal and digitizes the signal. The digitized seismic data uses data telemetry and a repeater device to receive the compressed data and transmit the com... | 10/18/2005 |
| 6918407 | Pneumatic reset relief valve A safety device protects a mud pump from an over pressure condition, which can occur during normal operation. The mud pump discharge couples to a high pressure inlet at the bottom of a valve body and the discharge outlet from the valve discharges to the side of the ... | 07/19/2005 |
| 6904984 | Stepped polycrystalline diamond compact insert The present invention addresses this need in the art by providing a cutter insert comprising a plug section and a cutter pedestal. The cutter insert is preferably formed of tungsten carbide, except for two exterior surfaces covered with PDC. The plug section may be ... | 06/14/2005 |
| 6902014 | Roller cone bi-center bit A roller cone bi-center bit for economically drilling an enlarged borehole below casing in earth formation is provided. The bi-center bit includes a rolling cone cutter or other appropriate cutter to enlarge a pilot bore also made by rolling cone or other type of cu... | 06/07/2005 |
| 6877720 | Compact geometry tensiometer using a segmented sheave assembly A tensiometer for measuring tension in a tubular, such as a cable, using segmented sheave assemblies is provided. The precision of a tension measurement, and the bending stress to which the tubular is exposed during the tension measurement, are functions of the effe... | 04/12/2005 |
| 6867706 | Frequency regulation of an oscillator for use in MWD transmission An oscillating valve driven by the pressure in a mud pulser develops a pressure variation in the mud pulse signal that is at a frequency that is different than the frequencies of the mud system. The oscillating valve is coupled to or integral with the pulse drive cy... | 03/15/2005 |
| 6848994 | Automated wagering recognition system A system and method for acquiring and analyzing the bets at a plurality of locations at a plurality of tables is provided. The system includes a gaming table with a raised platform, underneath which is positioned a video camera for each of the wagering locations on ... | 02/01/2005 |
