Patents Represented by Attorney Richard C. Litman
  • Patent number: 8190402
    Abstract: The method of modeling flexural characteristics of a bar subjected to local heating utilizes thermal diffusion equations and the finite element method to model vibrational frequency and amplitude variation in a substrate material subjected to local heating. Both heated and non-heated cases are considered.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: May 29, 2012
    Assignee: King Fahd University of Petroleum & Minerals
    Inventors: Bekir Sami Yilbas, Iyad Al-Zaharnah
  • Patent number: 8188773
    Abstract: The voltage-controlled dual-slope square and triangular waveform generator is an electronic circuit that includes a plus-type second-generation current conveyor operably connected to a single operational amplifier. At the input stage to the operational amplifier, two metal-oxide semiconductor (MOS) transistors are configured as switches. Three resistors and a grounded capacitor are included in the electronic circuit, thereby maintaining a low component count. The leading and trailing slopes of the waveform are independently adjustable by selection of the voltages V1 and V2 that are selectively connectable to the y-input of the CCII+ via switching action of the MOS transistors. The frequency of the waveform is adjustable via the voltage divider ratio between the output and noninverting input of the operational amplifier. The simple and elegant nature of the circuit design provides a low-cost waveform generator that can be adjusted both for frequency and for independent leading edge and trailing edge slopes.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: May 29, 2012
    Assignee: King Fahd University of Petroleum & Minerals
    Inventor: Muhammad Taher Abuelma'atti
  • Patent number: 8186031
    Abstract: The bushing replacement kit includes components for reaming out a bushing passage in a mechanical structure, and for installing a new bushing in the passage. The reamer portion of the kit includes a reamer guide, which is secured precisely and immovably to the seal sleeve of the passage, the reamer having a pilot shaft that fits precisely within the guide. The guide is held in place by a guide retaining plate, which is clamped to the mechanical structure over the guide. When the reaming operation has been completed, the ream is removed and a threaded bushing installation shaft is passed through the guide and bushing passage. A new bushing is placed at the back of the passage, with a bushing installer placed in back of the bushing. A threaded fastener is installed on the installation shaft and tightened to force the new bushing into its passage.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: May 29, 2012
    Inventors: Warren A. Whitney, Robert W. Hanna, Jr.
  • Patent number: 8190307
    Abstract: The control optimization method for helicopters carrying suspended loads during hover flight utilizes a controller based on time-delayed feedback of the load swing angles. The controller outputs include additional displacements, which are added to the helicopter trajectory in the longitudinal and lateral directions. This simple implementation requires only a small modification to the software of the helicopter position controller. Moreover, the implementation of this controller does not need rates of the swing angles. The parameters of the controllers are optimized using the method of particle swarms by minimizing an index that is a function of the history of the load swing. Simulation results show the effectiveness of the controller in suppressing the swing of the slung load while stabilizing the helicopter.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: May 29, 2012
    Assignee: King Fahd University of Petroleum & Minerals
    Inventor: Hanafy M. Omar
  • Patent number: 8188734
    Abstract: The 555 timer-based phase-to-voltage converter is a circuit that can be used for phase-to-voltage conversion for phase angles in the range between 0 and 2?. A first input signal triggers the 555 timer. A second input signal resets the 555 timer, and thus an output signal having a pulse width proportional to the phase difference between the first and second input signals is formed at the output of the 555 timer. A low pass filter may be placed at the output to pass a DC voltage having a magnitude proportional to the phase difference between the first and second input signals for phase angles between 0 and 2?.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 29, 2012
    Assignee: King Fahd University of Petroleum & Minerals
    Inventors: Muhammad Taher Abuelma'atti, Husam Al-Shammari
  • Patent number: 8181775
    Abstract: The sports equipment hanger is a receptacle for storing and transporting sports gear or equipment. The receptacle includes a member fabricated from duck cloth. The member has opposed planar surfaces. A plurality of pockets, each constructed from open mesh material, is disposed on the opposed surfaces. Barrel locks are provided to close the pockets. A structure is attached to the top of the receptacle for hanging the receptacle when desired.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: May 22, 2012
    Inventor: Joel W. Bunn
  • Patent number: 8181400
    Abstract: The gas fill device for multiple pane windows includes a tube installed through the peripheral spacer bar between two glass panes in an insulated glass assembly for a window, door glass, skylight, or the like. An elbow is pivotally attached to the external end of the tube. A supply of an inert, insulating gas may be attached to the elbow to refill the space between the two panes with the insulating gas, as needed. Two such tubes may be installed in each multiple pane window assembly, one to refill the space with insulating gas and the other to vent air from the space to the atmosphere as the space is refilled with the insulating gas. When the multiple pane window has more than two panes, the tube may be branched and supplied through a common elbow.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: May 22, 2012
    Inventor: Rodney G. Kindschuh
  • Patent number: 8185441
    Abstract: The method of auctioning license plates provides for the public auctioning of state-issued, motor vehicle license plates. The method includes the step of first establishing a market value data set for a plurality of license plates. Next, the market value data set is stored in a market value database, which is recorded in computer readable memory associated with an auction server. An online auction is then established for at least one license plate to be sold. Once up for auction, bidders bid on the at least one license plate. Once bidding has closed, the at least one license plate is sold to the highest bidder, and funds are transferred from buyer to seller. Following the sale, transfer of ownership of the at least one license plate is recorded in a motor vehicle administration database, and both sales and property taxes associated with the sale of the license plate are assessed.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: May 22, 2012
    Inventor: Charles G. Tate
  • Patent number: 8182568
    Abstract: The two-stage air filter is formed of a nonwoven glass fiber first or inlet filter element and a second or outlet filter element formed of nonwoven fiber. The outlet filter element is preferably formed of either polyester material, or a blend of polyester and cotton fiber material. The first or inlet filter element is coarser than the second or outlet filter element, with the first element serving to capture larger particles while allowing smaller particles to pass therethrough to be captured by the finer second filter element. The two filter elements have a continuous and unbroken, homogeneous interface therebetween, with the attachment of the two filter elements with one another being solely at their mutual peripheries by a peripheral frame. Additional air freshening and cleaning, deodorizing, odor neutralizing, scent applying, fungicidal, bactericidal, and/or germicidal chemicals or materials may be applied to either or both filter elements.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: May 22, 2012
    Inventors: Giovanni D. Volo, Salvatore R. Carabetta
  • Patent number: 8184803
    Abstract: The hash functions using elliptic curve cryptography are hash functions that are produced using both an elliptic curve and a twist of the elliptic curve. Hash points are assigned values that either correspond to points on the elliptic curve or to points on the twist, depending upon whether the scalar value of the corresponding message block produces a quadratic residue or a quadratic non-residue when substituted as the x-value into the elliptic curve equation. The corresponding hash point x-coordinates are concatenated to form the hash bit string. The hash points may be doubled, and the hash functions may be applied to multimedia data by applying a media compression method to the message data before computing the hash points.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: May 22, 2012
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Lahouari Ghouti, Mohammad K. Ibrahim, Atef J. Al-Najjar
  • Patent number: 8185259
    Abstract: The fuzzy logic-based control method for helicopters carrying suspended loads utilizes a controller based on fuzzy logic membership distributions of sets of load swing angles. The anti-swing controller is fuzzy-based and has controller outputs that include additional displacements added to the helicopter trajectory in the longitudinal and lateral directions. This simple implementation requires only a small modification to the software of the helicopter position controller. The membership functions govern control parameters that are optimized using a particle swarm algorithm. The rules of the anti-swing controller are derived to mimic the performance of a time-delayed feedback controller. A tracking controller stabilizes the helicopter and tracks the trajectory generated by the anti-swing controller.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: May 22, 2012
    Assignee: King Fahd University of Petroleum & Minerals
    Inventor: Hanafy M. Omar
  • Patent number: 8182895
    Abstract: The padded edge cover has a hemispherical top portion and a cylindrical bottom portion extending from the top portion, the two portions forming a core of cushioning material. Prongs extend from a rear face of the bottom core portion to insert into hollow extruded metal frame members. The padded edge cover is resilient in order to cushion physical contact of personnel with the frame members. The padded edge covers are easily removable from the frame members and can be stored on a metal bracket designed specifically for the covers. Alternative embodiments of the padded edge covers are substantially rectangular and have either prongs or magnetic members to retain the padded covers to the frame members.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: May 22, 2012
    Inventor: Robert L Myler
  • Patent number: 8181415
    Abstract: The modular construction block is a modular construction element for forming structures such as earth retaining walls, for example. A plurality of modular construction blocks are provided for the formation of the desired structures, with each block being hollow so as to fill the structure with concrete. Rather than acting as a removable form for the construction of a concrete wall, for example, the blocks are left in place, forming part of the permanent structure. Each modular construction block includes a hollow parallelepiped frame having first and second laterally opposed walls secured to a pair of laterally opposed ends of the hollow frame. The upper end, the lower end and a pair of longitudinally opposed ends of the hollow frame all remain open for receiving poured concrete. Both horizontally and vertically adjacent ones of the blocks are secured to one another to form the structure.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: May 22, 2012
    Inventor: Steven J. Mancine
  • Patent number: 8185131
    Abstract: The method of providing location-based information from portable devices allows for the tracking of the location of portable devices (14), such as cellular telephones, for example, for the recordation and subsequent analysis of demographic, location-based information. The method includes the steps of: determining (200) a geographic location of at least one portable device (14); recording geographic location coordinates (250) of the portable device (14) in computer readable memory (140); establishing a set of public geographic regions (20) and a set of non-public geographic regions (30) within a geographic area in which the portable device (14) is located; and dividing each non-public geographic region (30) into a plurality of geographic non-public zones (52), where if the portable device (14) is located within a non-public geographic region (30), the geographic location coordinates are replaced (260) with a generalized set of geographic coordinates associated with the non-public geographical region (30).
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: May 22, 2012
    Inventor: Jeremy Wood
  • Patent number: 8181826
    Abstract: The scent sprayer is a device for attracting animals. The device incorporates a scent spray dispenser. The dispenser includes an optionally camouflaged housing with a wind vane for rotating the sprayer in the direction of the wind. A radio frequency (RF) receiver is enclosed in the housing. The receiver is connected to a circuit that operates an electromechanical coupler to release a scent from the scent spray dispenser that attracts game. The scent sprayer also includes an RF transmitter that transmits a control signal on the same frequency as the RF receiver to trigger release of the scent. The scent contained in the scent spray dispenser may be urine, blood, pheromones, or any other scent suited to the game being hunted.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: May 22, 2012
    Inventor: Thomas G. Wainwright
  • Patent number: 8172163
    Abstract: This system and method for producing nanomaterials allows for the production of relatively high concentrations of nanoparticles with a minimum of expense, time and energy. Ultrasonic waves, produced at a power of approximately 50 W with a frequency of 26.23 kHz, are projected on a material sample while, simultaneously, a fluid stream jet is projected on the material sample. The ultrasonic waves, in the presence of the fluid jet, create cavities that explode at the surface of the solid material, leading to creation of cracks in the material surface. With the increase in the number of cracks in the material, the solid material erodes. The eroded material, which is on the nanometer scale, is collected on a suitable substrate, such as silicon. This method allows for the preparation of nanoparticles from any solid material, in particular very hard materials, such as diamond, silicon carbide and the like.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: May 8, 2012
    Assignee: King Abdulaziz University
    Inventors: Soliman Mahmoud Soliman Abdalla, Fahad M. M. Al-Marzouki, Ali Mohamed Abdel-Daiem
  • Patent number: 8172478
    Abstract: The double-deck covered roadway (5) has an upper road (30) for light vehicle traffic and a lower road (25) for heavy, industrial vehicle traffic. The roadway is an intelligent system, having an access control computer (ACC) (55) limiting access of the roadways to the appropriate vehicles. Signal emitters, receivers and/or repeaters (40) for microwave, cell phones short-range radio, or the like may be provided. The roadway is covered, and has a slanted roof structure (7). Solar panels (10) are disposed atop the slanted roof structure (7). Spindles (8) may be provided that can pull off or pull on an optional protective cover for the solar panels (10). An indoor services module (50) houses the ACC (55) and other service systems. The underside of the upper roadway (30) can provide attached or embedded monitoring systems, road lighting, signal light boards (60) to communicate with drivers, etc.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: May 8, 2012
    Inventor: Robert L. Sing
  • Patent number: 8172241
    Abstract: The handcart has various embodiments, each embodiment having a pair of larger wheels at the back of the load-carrying platform and a rear axle located above the plane of at least the forward portion of the platform. Smaller caster wheels are mounted on arms extending forward and outward from the forward corners of the platform. The outward ends of the arms are displaced upwardly to place the platform bottom only very slightly higher than the bottoms of the forward casters, thus increasing stability by lowering the center of gravity of the cart and contents, and facilitating loading and unloading of the cart due to the very low platform. The cart need not be tilted rearward to lift the platform from the floor, but may be pushed over the underlying surface with the load-carrying platform remaining level and with all four wheels rolling over the underlying surface.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: May 8, 2012
    Inventor: Frank Salvucci, Jr.
  • Patent number: 8175951
    Abstract: The automated bid ask spread negotiations method is a computer process and system for negotiating transactions combining a bargain sale strategy with the normal negotiating process. The system effectively adds a bonus to the package of benefits, thereby closing the gap from a previous nominal price asked and bid, but payable to a charity of the seller's choice, over a long term and at a favorable rate of interest, at the same time, providing a tax deduction for the seller, as well as an interest deduction for the buyer of the asset or services.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: May 8, 2012
    Assignee: American Charter, LLC
    Inventor: James B. Wootton
  • Patent number: 8172458
    Abstract: A shape memory material activated device of the present invention uses a shape memory material activator to create a path through a shell wall of the device. The path through the shell wall may release a substance contained in the shell or allow a substance to enter the shell. The path may be created by fracturing, puncturing, exploding, imploding, peeling, tearing, stretching, separating, debonding, abrading or otherwise opening the shell and, may be permanent or reversible. The substance may be released in one location while the device is stationary or along a path while it is traveling, self-powered by the shape memory material activator. In addition, the substance may be delivered to an object upon contact with its surface. The self powering abilities allow these devices to be used as substance delivery devices as well as actuators, transporters, and energy conversion systems with modular characteristics and growth potential.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: May 8, 2012
    Inventor: Dennis N. Petrakis