Patents Represented by Law Firm Dorr, Carson, Sloan and Peterson
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Patent number: 5319199Abstract: A gas analysis device (10) for the remote detecting, measuring and recording of NO.sub.x, CO, CO.sub.2, HC and H.sub.2 O levels from the exhaust (30) of moving motor vehicles (28) utilizes a source (11) of collimated infrared and ultraviolet radiation (15) and includes a detector unit (16) positioned on the opposite side of the roadway for receiving and measuring the infrared and ultraviolet radiation from the source (11) tranmitted through the vehicle exhaust. The detector unit splits the combined infrared and ultraviolet radiation into separate infrared and ultraviolet beams (42) and (40). An ultraviolet sensor (44) receives the separate ultraviolet beam and generates a signal indicative of NO.sub.x. A rotating reflector (27) time-multiplexes the infrared beam to a plurality of infrared sensors that generate electrical signals indicative of, for example, CO, CO.sub.2, HC and H.sub.2 O in the vehicle exhaust. A computer (17) then computes the relative concentrations of CO, CO.sub.2, HC, NO.sub.x, and H.sub.Type: GrantFiled: June 8, 1992Date of Patent: June 7, 1994Assignee: Colorado SeminaryInventors: Donald H. Stedman, Gary A. Bishop
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Patent number: 5313220Abstract: An integrated semi-parabolic antenna/down converter receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are electrically connected to the printed circuit board carrying the down converter electronics. The down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains a low noise amplifier connected to an RF filter located at the input end of the printed circuit board. The RF filter is surrounded by an input ground shield which covers the RF filter circuit. The shield is soldered to the top and bottom ground planes of the printed circuit board. At the opposite end of the printed circuit board are two output I.F. amplifiers whose outputs are serially connected together.Type: GrantFiled: May 27, 1993Date of Patent: May 17, 1994Assignee: Conifer CorporationInventors: Dale L. Hemmie, Marc D. Mills
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Patent number: 5240156Abstract: A modular system of interchangeable compartments mounted on a support member. The support member, such as a belt or vest, includes a support surface portion formed of a continuously looped, brushed polyester weave material. The outer surface is smooth and will not accidently snag other surfaces. Compartment modules, provided in a variety of shapes and sizes according to the activity in which the modular system is to be used, include at least one fastening strip of upstanding hook elements. The upstanding hook elements are able to engage the continuously looped brushed polyester weave to secure the compartment modules onto the support surface portion of the modular system. The compartment modules can be attached to the support surface in any desired position as well as any angular orientation by simply pressing the fastening strips onto the support surface. The compartment modules are easily removed from the support surface by forcibly disengaging the fastening strips from the support surface.Type: GrantFiled: February 3, 1992Date of Patent: August 31, 1993Inventors: Louis T. Sicotte, Vernon L. Morris
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Patent number: 5218340Abstract: An audible turn signal canister unit for automobiles incorporates an audible alarm in the form of a unitary, self-contained module which can be plugged into the existing socket in the automobile in place of a standard flasher unit. The alarm is a pure tone in the mid-speech frequency range (e.g. 1000 to 2500 Hz) in order to be more readily heard over background noise or by hearing impaired individuals. Optionally, the unit can be provided with a time delay circuit in the form of an electronic counter that is reset each time that the turn signal switch is turned on or closed in order to establish the beginning count for the activation of the alarm a predetermined time interval after the turn signal unit is activated.Type: GrantFiled: August 23, 1991Date of Patent: June 8, 1993Inventors: Malcolm L. Shannon, Jr., James W. Heller
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Patent number: 5169503Abstract: Metal values are solubilized from ore by a lixiviant having a pH from 5 to 8, comprising an aqueous solution of a chloride salt and a hypochlorite salt. Cyanuric acid may be added to retard decomposition of the lixiviant. In one alternative embodiment, any remaining hypochlorite ions are then eliminated by adding hydrogen peroxide or a reducing agent to the pregnant lixiviant. Metal values are recovered by reduction using carbon, electrowinning, or other conventional techniques. In an alternative embodiment for extraction of gold or silver, the steps are combined by using finely ground ore containing sulfides or carbonaceous material to both reduce any remaining hypochlorite ions and precipitate the metal values from the lixiviant. The lixiviant can then be regenerated either by electrolysis or addition of hypochlorite salt.Type: GrantFiled: June 24, 1988Date of Patent: December 8, 1992Inventors: David R. Baughman, Ray V. Huff, Steven G. Axen
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Patent number: 5108979Abstract: Spinels can be synthesized by uniformly dispersing predetermined quantities of ingredient compounds whose particles have sizes no greater than about 5 nanometers in a liquid medium, arresting the ingredient compounds in a solid matrix by spray drying said liquid medium and then calcining the resulting particles to form a solid solution of oxides of said compounds in a crystalline lattice which is substantially free of undesired complex compounds of the ingredient compounds.Type: GrantFiled: February 25, 1991Date of Patent: April 28, 1992Assignee: Intercat, Inc.Inventors: Louis M. Magnabosco, Edward J. Demmel
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Patent number: 4980882Abstract: An improved coarse access and tracking servo system for use with an optical disk storage system is disclosed. Concentric servo tracks placed on the disk are readily distinguished from data tracks placed on the disk which may or may not be present on the disk depending upon the amount of information that has been written on the disk, i.e., how "full" the disk is with respect to its maximum capacity for storing data. A predetermined signal is embedded within each of the plurality of concentric servo tracks found on the disk. A radial strip or line, sufficiently long to always include at least one servo track, but also long enough to include data tracks, if any, on either side of the illuminated servo track is projected on the surface of the disk in order to detect the servo tracks.Type: GrantFiled: November 28, 1988Date of Patent: December 25, 1990Assignee: Storage Technology Corporation Partners IIInventors: James W. Baer, Majed K. Abed
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Patent number: 4871335Abstract: A water-ski locator device is comprised of a buoyant body fixed in position on the top surface of the water-ski's toe piece by a number of straps. So positioned, the buoyant body does not create water drag while the ski is in use. The device is also particularly adapted to restore the body uppermost over the ski and to visibly project above the water's surface in the event the ski becomes detached, or is purposely left by the skier, and comes to rest in an upside down orientation, i.e., if the ski initially comes to rest, as a water-ski is otherwise often inclined to do, with its bottom surface floating on the water and its shoe piece facing downward.Type: GrantFiled: May 13, 1988Date of Patent: October 3, 1989Inventor: Charles E. Grams
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Patent number: 4710370Abstract: A method for the detection of Cushing's syndrome in domestic animals is provided by first injecting glucagon into an animal suspected of having Cushing's syndrome and then monitoring the animal's blood glucose levels against an appropriate control over a two hour period. A blood glucose value above about 295 mg/dl is diagnostic for Cushing's syndrome.Type: GrantFiled: April 25, 1985Date of Patent: December 1, 1987Assignee: Colorado State University Research FoundationInventor: Dennis W. Macy