Patents by Inventor Colin D. Campbell
Colin D. Campbell 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: 8266851Abstract: A mullion system includes a universal reinforcement key, that joins window frame members and when anchored in a window frame opening or against other window frame joining members, contributes to bearing the load on the window frame unit. The system also includes a mull strip member with end caps designed to weep moisture away from and out of the window frame unit.Type: GrantFiled: February 3, 2009Date of Patent: September 18, 2012Assignee: Ply Gem Industries, Inc.Inventors: Colin D. Campbell, James M. Bowling
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Publication number: 20100192488Abstract: A mullion system includes a universal reinforcement key, that joins window frame members and when anchored in a window frame opening or against other window frame joining members, contributes to bearing the load on the window frame unit. The system also includes a mull strip member with end caps designed to weep moisture away from and out of the window frame unit.Type: ApplicationFiled: February 3, 2009Publication date: August 5, 2010Applicant: PLY GEM PACIFIC WINDOWS CORPORATIONInventors: Colin D. CAMPBELL, James M. BOWLING
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Patent number: 7122081Abstract: The present invention is directed to an aqueous process for reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant, optionally a defoamer, optionally an additive, and greater than about 10 wt. % water, and isolating the organic pigment.Type: GrantFiled: November 12, 2004Date of Patent: October 17, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Yingxia He, Colin D. Campbell
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Patent number: 7044479Abstract: A simple and positive drill steel retainer comprises a retainer and a latch. The retainer cannot be opened until the latch is disengaged. The latch is held in the engaged position by a spring. The retainer and latch can be easily operated with one hand.Type: GrantFiled: June 25, 2002Date of Patent: May 16, 2006Inventors: Paul B. Campbell, Jr., Colin D. Campbell
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Patent number: 6571935Abstract: A monolithic conveyor belt structure comprising an elongate, substantially planar base belt having a pair of integrally formed, flexible, fabric reinforced, longitudinal sidewalls protruding from its top face. The integral construction prevents delamination of the sidewalls from the base belt, and the fabric reinforcement in the sidewalls strengthens the sidewalls against deterioration due to repeated flexure of the belt, and due to contact with pulleys, turn disks, sliding surfaces, etc. The belt may include cleats between the sidewalls, such as transverse paddles or upstanding nubs, to assist in conveying material on very steep inclines.Type: GrantFiled: June 22, 2000Date of Patent: June 3, 2003Assignee: Cambelt International CorporationInventors: Colin D. Campbell, Mark Schmidt
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Publication number: 20020195779Abstract: A simple and positive drill steel retainer, comprising a retainer (402) and a latch (403). The retainer cannot be opened until the latch is disengaged. The latch is held in the engaged position by a spring (406). The retainer and latch can be easily disengaged in one continuous motion with one hand.Type: ApplicationFiled: June 25, 2002Publication date: December 26, 2002Inventors: Paul B. Campbell, Colin D. Campbell
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Patent number: 6095742Abstract: An enclosed granular or powdered material storage reclaimer, having a floor, a vertical column at the center of the floor, conveyor means disposed below the floor, elongate transfer device hingedly attached to the column, an anchor pedestal for anchoring the bottom end of the column to a footing structure below, and a downwardly directed annular opening formed in the center of the floor, said opening having an inside wall and an outside wall, said annular opening being concentric with the vertical axis of the column and designed to receive granular or powdered material transported there by the elongate transfer device, such that the column may be directly supported by the anchor pedestal and the footing structure, and the conveyor means need not be located directly beneath the center of the column. Such an enclosed granular or powdered material storage reclaimer wherein the conveyor means comprises an air slide conveyor.Type: GrantFiled: September 9, 1998Date of Patent: August 1, 2000Assignee: Cambelt International CorporationInventor: Colin D. Campbell
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Patent number: 5944168Abstract: A crescent shaped support cover for an elongate material reclamation mechanism in a granular or powdered material storage enclosure, the support cover comprising: a first elongate tube having a longitudinal opening formed in its side along the full length of the tube; a second elongate tube having a longitudinal opening formed in its side along the full length of the tube, the longitudinal opening having a width that is approximately equal to the width of the longitudinal opening in the first tube, the second tube being larger in cross-section than the first tube, and the first tube being longitudinally disposed within the second tube such that the longitudinal openings of the first tube and the second tube are aligned, the first tube being continuously attached to the second tube along the edges of the longitudinal openings, forming an elongate structure defining a partially open elongate tubular space within the first tube suitable for partially enclosing an elongate auger, and defining an enclosed cross-seType: GrantFiled: September 28, 1998Date of Patent: August 31, 1999Assignee: Cambelt International CorporationInventors: Colin D. Campbell, Venny J. Williams
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Patent number: 5596479Abstract: A power director enables a user to apply power through one or more power outlets via one or more switches to a cluster of electrical devices, for example, the components of a desk top computer system. A typical computer system may have a CPU chassis, monitor, printer, CD-ROM and a document scanner each of which may have its own power line cord. The housing of the current power director has internal storage spaces or bays for coiling the excess portions of the power cords of the various computer components to eliminate the tangled mess associated with such systems. The electrical outlets are located in a component bay within the housing separate from but adjacent to the line cord storage bay to be accessible to the plugs of the line cords of the electrical devices sought to be controlled. The component bay contains a first printed circuit board (PCB) which carries the electrical outlets and a second PCB that contains an electrical surge protection circuit, a fault isolation circuit and the switches.Type: GrantFiled: July 20, 1995Date of Patent: January 21, 1997Assignee: American Power Conversion CorporationInventors: Colin D. Campbell, James H. Bleck
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Patent number: 5457600Abstract: A power director enables a user to apply power through one or more power outlets via one or more switches to a cluster of electrical devices, for example, the components of a desk top computer system. A typical computer system may have a CPU chassis, monitor, printer, CD-ROM and a document scanner each of which may have its own power line cord. The housing of the current power director has internal storage spaces or bays for coiling the excess portions of the power cords of the various computer components to eliminate the tangled mess associated with such systems. The electrical outlets are located in a component bay within the housing separate from but adjacent to the line cord storage bay to be accessible to the plugs of the line cords of the electrical devices sought to be controlled. The component bay contains a first printed circuit board (PCB) which carries the electrical outlets and a second PCB that contains an electrical surge protection circuit, a fault isolation circuit and the switches.Type: GrantFiled: July 20, 1994Date of Patent: October 10, 1995Assignee: American Power Conversion CorporationInventors: Colin D. Campbell, James H. Bleck
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Patent number: 5449263Abstract: An apparatus for removing bulk materials from a laterally enclosed storage area wherein the apparatus may be substantially buried within the bulk material (11). The apparatus includes a support column (16) mounted at a base into a support floor (25). An auger (17) is attached with an axial mount at the base of the support column for enabling rotational declination of the auger from (i) a vertical orientation wherein the auger is nearly parallel with the vertical axis of the support column, (ii) through intermediate angles of declination (54), to (iii) a substantially horizontal orientation (55) wherein the auger is adjacent to the support floor. The suspension cable (61) is coupled between the support column and auger to enable selective adjustment of auger declination. A rotational displacement drive (35) is coupled to the support column to rotate the column about its vertical axis, along with the attached auger. A rotational drive motor (51) is mounted at a distal end of the auger.Type: GrantFiled: June 7, 1994Date of Patent: September 12, 1995Assignee: Cambelt International CorporationInventors: David R. Campbell, Colin D. Campbell
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Patent number: 5334727Abstract: Pyrazole derivatives of a variety of polycyclic pigments, particularly quinacridone pigments, corresponding to the general formula ##STR1## wherein Q is the primary pigment structure; and the use of such derivatives as additives to pigment systems to provide a broad range of performance benefits to the resulting pigment compositions.Type: GrantFiled: January 11, 1993Date of Patent: August 2, 1994Assignee: Ciba-Geigy CorporationInventor: Colin D. Campbell
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Patent number: 4981888Abstract: A pigmented thermoplastic resin composition comprising:(A) a thermoplastic resin;(B) a metal phthalocyanine pigment; and(C) 0.5 to 30% by weight, based on the weight of the pigment (B), as agent imparting heat stability to component (B), of a sulphonated imidomethyl phthalocyanine having the formula I: ##STR1## wherein Pc is a phthalocyanine residue optionally substituted by up to 4 chlorine or bromine atoms;M is hydrogen or a metal capable of forming a metal phthalocyanine;m is a vlaue within the range of from 0.05 to 1.0;n is a value within the range of from 0.1 to 4.0; andX is a residue such that, in combination with the group ##STR2## it form a 5-, 6- or 7-membered cyclic imide.Type: GrantFiled: May 15, 1989Date of Patent: January 1, 1991Assignee: Ciba-Geigy CorporationInventors: Robert Langley, Colin D. Campbell
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Patent number: 4920217Abstract: The present invention provides a process for the production of dimethylaminomethyl copper phthalocyanine having an average of 1 to 4 dimethylaminomethyl groups per molecule which comprises reacting aminomethyl copper phthalocyanine having an average of 1 to 4 aminomethyl groups per molecule with formaldehyde and aqueous formic acid at a concentration of 2 to 60%, at atmospheric pressure, and at an elevated temperature.Type: GrantFiled: September 19, 1988Date of Patent: April 24, 1990Assignee: Ciba-Geigy CorporationInventors: Ian A. Lambie, Paul I. W. Yarrow, Robert Langley, Colin D. Campbell
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Patent number: 4892968Abstract: The invention provides compounds having the formula I or II ##STR1## and their salts and hydrates, having high value as intermediates for dyestuff additives for pigment compositions and as intermediates for metal-containing pigments.Type: GrantFiled: July 29, 1988Date of Patent: January 9, 1990Assignee: Ciba-Geigy CorporationInventor: Colin D. Campbell
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Patent number: 4714151Abstract: A system for covering and supporting a conveyor belt system. The conveyor belt system is supported in large measure by a structural support tube. The structural support tube is simply a tube or pipe of the conventional type. Disposed through the center of the tube are a plurality of internal support pipes. In turn, auxiliary support pipes, smaller in diameter than the internal support pipes, may traverse the interior of the internal support pipe and extend out either end. Attached to the auxiliary support pipes is a conventional belt conveyor system. The belt conveyor system is, in turn, enclosed by a top cover and a lower enclosure. All of the parts are held securely together using readily available materials such as angle iron. The present invention is extremely flexible providing the capability of easily constructing 40, 60, 80 and 120 foot spans of conveyor system. In addition, it is possible to provide an open conveyor, a partially enclosed conveyor, or a totally enclosed conveyor.Type: GrantFiled: April 30, 1986Date of Patent: December 22, 1987Assignee: Cambelt International CorporationInventors: Colin D. Campbell, David R. Campbell
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Patent number: 4205977Abstract: Agent for influencing plant growth, in particular a herbicidal and plant growth-inhibiting agent containing in addition to carriers and/or other additives, at least one compound of the formula: ##STR1## in which R is hydrogen an alkyl group having from 1 to 5C atoms, which is unsubstituted or substituted by hydroxyl, salts thereof with either strong monobasic or polybasic acids or with inorganic or organic bases, or optical isomers thereof, as the active component.Type: GrantFiled: November 13, 1978Date of Patent: June 3, 1980Assignee: Ciba-Geigy CorporationInventors: John G. Dingwall, Eric K. Baylis, Colin D. Campbell
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Patent number: 4153601Abstract: A compound having the formula ##STR1## wherein A denotes an optionally substituted aromatic, isocyclic or heterocyclic residue; R is H, an alkyl residue having from 1 to 6 carbon atoms, an aryl residue having from 6 to 10 carbon atoms or an aralkyl residue having from 7 to 10 carbon atoms; Q is H or a methyl group; X and Y are the same or different and each is a non-water solubilizing group, or X and Y together form a fused aromatic ring system; and R.sub.1 and R.sub.2 are the same or different and each is H or an alkyl radical having from 1 to 22 carbon atoms, and R.sub.3 is hydrogen, an alkyl radical having from 1 to 22 carbon atoms or an aryl radical having from 6 to 10 carbon atoms, the alkyl radicals in R.sub.1, R.sub.2 and R.sub.3 being unsubstituted and uninterrupted or being substituted by an OH, NH.sub.2 or CN group and/or being interrupted by an ethylenic group or an oxygen, sulphur or nitrogen bridge, or two or all three of R.sub.1, R.sub.2 and R.sub.Type: GrantFiled: June 27, 1977Date of Patent: May 8, 1979Assignee: Ciba-Geigy CorporationInventors: Terence R. Chamberlain, Colin D. Campbell, James M. McCrae
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Patent number: 4147780Abstract: The present invention relates to new phosphonous acid derivatives, especially to .alpha.-amino-phosphonous acids and processes for their production. The new phosphonous acids are valuable chemotherapeutica in the treatment of pathogenic bacteria, gram-negative bacteria and yeast.Type: GrantFiled: May 23, 1977Date of Patent: April 3, 1979Assignee: Ciba-Geigy CorporationInventors: John G. Dingwall, Eric K. Baylis, Colin D. Campbell
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Patent number: D411981Type: GrantFiled: November 14, 1997Date of Patent: July 13, 1999Assignee: American Power Conversion CorporationInventors: Olympio G. Jeon-Chapman, Joseph J. Loberti, Ronald R. Catanzaro, Colin D. Campbell, Clinton D. Veino, Charles J. Pastorello, Glen Walter, Benjamin J. Beck, David G. Harting, Douglas A. Marsden