Patents by Inventor Charles Coleman
Charles Coleman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7259622Abstract: A radio frequency (RF) generator comprises a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an output node coupling the first and second half bridges and RF signals to a load; positive and negative rails coupled to an AC power source via rectifier; a first blocking capacitor provided between the positive rail and the load; and a second blocking capacitor provided between the negative rail and the load. The first and second blocking capacitors are configured to isolate the load from the AC power source.Type: GrantFiled: May 27, 2005Date of Patent: August 21, 2007Assignee: IXYS CorporationInventor: Charles Coleman
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Patent number: 7259623Abstract: A radio frequency (RF) generator comprises a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an output node coupling the first and second half bridges and RF signals to a load; positive and negative rails coupled to a power source; a first blocking capacitor provided between the positive rail and the load; a second blocking capacitor provided between the negative rail and the load; and an offline rectification circuit configured receive an alternating current (AC) from an AC power source and output a direct current (DC) to the first and second bridges, wherein the first and second blocking capacitors are configured to isolate the load from the AC power source.Type: GrantFiled: May 27, 2005Date of Patent: August 21, 2007Assignee: IXYS CorporationInventor: Charles Coleman
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Patent number: 7243706Abstract: A heatsink for a power device comprises an upper conductive plate providing a first surface; a lower conductive plate providing a second surface; a middle conductive plate provided between the upper and lower plates, the middle plate having a hollow portion and a solid portion, the hollow portion defining an area to receive coolant, wherein the power device is provided on the first or second surface, so that heat generated by the power device can be transferred to the coolant. The heatsink further comprises an input port coupled to the hollow portion of the middle plate to provide the coolant into the hollow portion; and an output port coupled to the hollow portion of the middle plate to remove the coolant from the hollow portion.Type: GrantFiled: May 26, 2005Date of Patent: July 17, 2007Assignee: IXYS CorporationInventor: Charles Coleman
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Publication number: 20060281009Abstract: The present invention is related to treated filler and processes for producing said treated filler. Untreated filler slurry can be treated with a treating material and, optionally, a coupling material and then subjected to conventional drying method(s), to produce the treated filler of the invention. Treated filler has a wide variety of applications including but not limited to battery separators and rubber compositions such as tires.Type: ApplicationFiled: May 26, 2006Publication date: December 14, 2006Inventors: James Boyer, Charles Coleman, Timothy Okel, Narayan Raman
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Publication number: 20060228632Abstract: The present invention is related to treated filler and processes for producing said treated filler. Untreated filler slurry can be treated with a treating material and then subjected to conventional drying method(s), to produce the treated filler of the invention. Treated filler has a wide variety of applications including but not limited to battery separators and rubber compositions such as tires.Type: ApplicationFiled: April 11, 2005Publication date: October 12, 2006Inventors: James Boyer, Narayan Raman, Charles Coleman, Timothy Okel
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Publication number: 20060229386Abstract: The present invention is related to treated filler and processes by which it can be produced. Untreated filler slurry can be treated with a treating material and then subjected to conventional drying method(s), to produce the treated filler of the invention. Treated filler has a wide variety of applications including but not limited to battery separators and rubber compositions such as tires.Type: ApplicationFiled: April 11, 2005Publication date: October 12, 2006Inventors: Narayan Raman, James Boyer, Charles Coleman, Timothy Okel
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Publication number: 20060225615Abstract: The present invention is related to treated filler, processes for producing said treated filler and the use of said treated filler in polymeric compositions. In particular, filler can be treated with at least one non-coupling material and at least one coupling material, then subjected to conventional drying method(s), to produce the treated filler of the present invention. The resultant treated filler has a wide variety of applications including polymeric compositions such as but not limited to rubber compositions such as tires.Type: ApplicationFiled: April 11, 2005Publication date: October 12, 2006Inventors: Narayan Raman, James Boyer, Timothy Okel, Charles Coleman
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Publication number: 20060162276Abstract: A method for beautification of an uninhabited or condemned building in an urban area utilizing camouflage sheeting placed over sealing materials (such as plywood) which have been secured across door and window penetrations to prevent egress by unauthorized persons. The camouflage depicts a realistic rendering of an external door, or a view through a window to the interior of a room, making it appear to a casual external observer that proper doors and windows are in place. The rendering may be made of UV-resistant coloring and covered with UV-resistant laminate. The camouflage sheeting may be made from paper, plastic or fabric and is sized to suit its respective opening and may be adhered to said egress-preventing materials or to the edges of said penetrations. The disclosed method of urban beautification is an economical solution to the loss of aesthetics caused by the boarding up of abandoned or condemned housing.Type: ApplicationFiled: January 13, 2005Publication date: July 27, 2006Inventor: Charles Coleman
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Publication number: 20050284609Abstract: A heatsink for a power device comprises an upper conductive plate providing a first surface; a lower conductive plate providing a second surface; a middle conductive plate provided between the upper and lower plates, the middle plate having a hollow portion and a solid portion, the hollow portion defining an area to receive coolant, wherein the power device is provided on the first or second surface, so that heat generated by the power device can be transferred to the coolant. The heatsink further comprises an input port coupled to the hollow portion of the middle plate to provide the coolant into the hollow portion; and an output port coupled to the hollow portion of the middle plate to remove the coolant from the hollow portion.Type: ApplicationFiled: May 26, 2005Publication date: December 29, 2005Applicant: IXYS CorporationInventor: Charles Coleman
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Publication number: 20050275456Abstract: A radio frequency (RF) generator comprises a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an output node coupling the first and second half bridges and RF signals to a load; positive and negative rails coupled to a power source; a first blocking capacitor provided between the positive rail and the load; a second blocking capacitor provided between the negative rail and the load; and an offline rectification circuit configured receive an alternating current (AC) from an AC power source and output a direct current (DC) to the first and second bridges, wherein the first and second blocking capacitors are configured to isolate the load from the AC power source.Type: ApplicationFiled: May 27, 2005Publication date: December 15, 2005Applicant: IXYS CorporationInventor: Charles Coleman
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Publication number: 20050275980Abstract: A radio frequency (RF) generator comprises a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an RF output node coupling output nodes of the first and second half bridges, the output node outputting RF signals to a load; positive and negative rails coupled to a power source; and a first commutation inductor provided to store energy to commutate at least one of the half bridges.Type: ApplicationFiled: May 26, 2005Publication date: December 15, 2005Applicant: IXYS CorporationInventor: Charles Coleman
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Publication number: 20050270097Abstract: A radio frequency (RF) generator includes a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an output node coupling the first and second half bridges and RF signals to a load; positive and negative rails coupled to an AC power source via a rectifier; a first blocking capacitor provided between the positive rail and the load; a second blocking capacitor provided between the negative rail and the load; and a voltage regulator configured to output a given voltage to the first and second bridges, wherein the first and second blocking capacitors are configured to isolate the load from the AC power source.Type: ApplicationFiled: May 26, 2005Publication date: December 8, 2005Applicant: IXYS CorporationInventor: Charles Coleman
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Publication number: 20050270096Abstract: A radio frequency (RF) generator comprises a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an output node coupling the first and second half bridges and RF signals to a load; positive and negative rails coupled to an AC power source via rectifier; a first blocking capacitor provided between the positive rail and the load; and a second blocking capacitor provided between the negative rail and the load. The first and second blocking capacitors are configured to isolate the load from the AC power source.Type: ApplicationFiled: May 27, 2005Publication date: December 8, 2005Applicant: IXYS CorporationInventor: Charles Coleman
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Publication number: 20040170743Abstract: Soy-containing confectioneries or nutritional compositions (especially nutritional bar) containing deflavored soy protein material are provided. The deflavored soy protein materials may be dispersed through out the preferred nutritional bars or, more preferably, dispersed with chocolate or caramel layers or bits covering or containing within the nutritional bars.Type: ApplicationFiled: September 4, 2003Publication date: September 2, 2004Applicant: Kraft Foods Holdings, Inc.Inventors: Ahmad Akashe, Ronald Louis Meibach, Edward Charles Coleman
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Patent number: 6011704Abstract: Autoranging power supply apparatus may comprise a power output section having a plurality of pairs of output terminals, each of which has a maximum voltage and current rating. A switching network associated with the power output section connects and disconnects the plurality of pairs of output terminals to the external load. A control system connected to the switching network operates the switching network in response to changes in the impedance of the external load to connect and disconnect to the external load selected ones of the plurality of pairs of output terminals of the power output section to compensate for impedance variations in the external load and to prevent from being exceeded the maximum voltage and current ratings for each of the plurality of pairs of output terminals.Type: GrantFiled: November 7, 1997Date of Patent: January 4, 2000Assignee: Sierra Applied Sciences, Inc.Inventor: Charles Coleman
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Patent number: 5990668Abstract: A circuit for producing an alternating output current may comprise a first current regulator and a second current regulator. The first current regulator produces a first phase of the alternating output current and regulates the current of the first phase. The second current regulator produces a second phase of the alternating output current and regulates the current of the second phase. A first polarity reversing circuit operatively associated with the first current regulator periodically reverses the polarity of the first phase. A second polarity reversing circuit operatively associated with the second current regulator periodically reverses the polarity of the second phase. A control system operatively associated with the first and second current regulators and the first and second polarity reversing circuits controls the operation of the first and second current regulators and the first and second polarity reversing circuits.Type: GrantFiled: September 18, 1998Date of Patent: November 23, 1999Assignee: Sierra Applied Sciences, Inc.Inventor: Charles Coleman
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Patent number: 5931581Abstract: A method and apparatus for making a self-sealable packaging, and the self-sealable packaging and method of use are disclosed. The apparatus includes dispensing a web and converting it by folding or by welding two webs together to provide upper and lower layers defining a pocket therebetween. A line of weakness is provided in an extension on the lower web, and a release liner is positioned over the line of weakness in spanning relationship, with a pattern of adhesive applied between the release liner and the extension below the line of weakness. The release liner is secured to the extension above the line of weakness, and the web is sealed along side boundaries and separated therealong to provide individual bags. The pocket of the bag is sized to receive an article, such as a newspaper therein. After insertion of the newspaper, the extension is separated along the line of weakness to provide a flap carrying the adhesive.Type: GrantFiled: May 19, 1997Date of Patent: August 3, 1999Assignee: Dennis Garberg & Associates, Inc.Inventors: Dennis D. Garberg, Thomas J. Butler, Charles Coleman, Lester Land, Danny Hendricks, Tim Ryan, Carl Medlin
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Patent number: 5910886Abstract: Power supply apparatus according to the present invention may comprise a direct current source and a phase-shift converter circuit connected to the direct current source. A rectifier is connected to the output of the phase-shift converter circuit and rectifies a modulated output signal produced by the phase-shift converter circuit. An average current sensor connected to the rectifier senses the time average current in the rectifier and produces an average current feedback signal. A control device connected to the average current sensor and to the phase-shift converter circuit is responsive to the average current feedback signal and operates the phase-shift converter circuit in accordance with the average current feedback signal.Type: GrantFiled: November 7, 1997Date of Patent: June 8, 1999Assignee: Sierra Applied Sciences, Inc.Inventor: Charles Coleman
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Patent number: 5889391Abstract: A combined regulator and pulsing circuit may comprise a first diode having a cathode that is electrically connected to a positive terminal of a supply of direct current and to a first output terminal of the combined regulator and pulsing circuit. A first switching device is electrically connected between the anode of the first diode and a negative terminal of the supply of direct current. An inductor is electrically connected between the anode of the diode and a second output terminal of the combined regulator and pulsing circuit. The first plate of a capacitor is electrically connected to the first output terminal, and a second switching device is electrically connected between the second plate of the capacitor and the second output terminal. A control system is operatively associated with the first and second switching devices and operates the first and second switching devices between the conducting and non-conducting states.Type: GrantFiled: November 7, 1997Date of Patent: March 30, 1999Assignee: Sierra Applied Sciences, Inc.Inventor: Charles Coleman
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Patent number: 4434549Abstract: An improved, selective, radiation sensing device is provided which includes a thin strip of pyroelectric material. One side of the material is coated with a continuous layer of metallic material to form an electrode while the opposite side is coated with at least a pair of electrodes and the output of the electrodes are electrically connected to a differential amplifier. A layer of energy filter material is applied over the continuous electrode. This layer is transparent to all energy outside of a desired energy frequency band to which the device is to be sensitive but absorbs and converts to heat all energy applied which is within this band. This heat is conducted quickly into the pyroelectric material which produces a voltage change in the output from the corresponding electrodes.Type: GrantFiled: September 30, 1982Date of Patent: March 6, 1984Assignee: Statitrol, Inc.Inventors: Peter R. Smith, Charles Coleman