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公开(公告)号:US20060280898A1
公开(公告)日:2006-12-14
申请号:US11152317
申请日:2005-06-14
申请人: Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
发明人: Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
CPC分类号: C04B28/14 , Y10T428/232 , C04B14/04 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/003 , C04B24/2641 , C04B2103/408
摘要: An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates.
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公开(公告)号:US20060278134A1
公开(公告)日:2006-12-14
申请号:US11450068
申请日:2006-06-09
申请人: Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
发明人: Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
CPC分类号: C04B28/14 , Y10T428/232 , C04B14/04 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/003 , C04B24/2641 , C04B2103/408
摘要: An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates.
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公开(公告)号:US20060278135A1
公开(公告)日:2006-12-14
申请号:US11450086
申请日:2006-06-09
申请人: Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
发明人: Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
CPC分类号: C04B28/145 , C04B28/26 , C04B2111/0062 , C04B2111/60 , Y10T428/232 , C04B12/04 , C04B20/0048 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/2647 , C04B24/38 , C04B40/0028 , C04B2103/12 , C04B2103/22 , C04B2103/67 , C04B14/06 , C04B22/143
摘要: In a method of making a gypsum slurry, a polycarboxylate dispersant, a modifier and a hydraulic material comprising stucco are selected for use in the slurry. These components are then combined with water to form a slurry, where the modifier is added to the slurry prior to formation of a slurry phase by the water, the stucco and the dispersant. The modifier has been shown to be less effective when added after the dispersant and stucco have been contacted in an aqueous slurry. In a preferred embodiment, an amount of stucco is obtained and the modifier and dispersant are selected. A predissolved solution of a dispersant and modifier is prepared in water to form a solution prior to the addition of the stucco. After mixing the solution, the stucco is added to form the slurry. Optionally, the slurry is then shaped into a product and allowed to set.
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公开(公告)号:US20060278130A1
公开(公告)日:2006-12-14
申请号:US11449924
申请日:2006-06-09
申请人: Qingxia Liu , Michael Shake , David Blackburn , John Wilson , Brian Randall , Dennis Lettkeman
发明人: Qingxia Liu , Michael Shake , David Blackburn , John Wilson , Brian Randall , Dennis Lettkeman
CPC分类号: C04B28/145 , C04B2111/0062 , Y10T442/665 , C04B14/06 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/10 , C04B24/2647 , C04B24/38 , C04B24/42 , C04B38/10 , C04B2103/12 , C04B2103/22 , C04B2103/67 , C04B22/143 , C04B24/163
摘要: A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel.
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公开(公告)号:US20060280899A1
公开(公告)日:2006-12-14
申请号:US11152323
申请日:2005-06-14
申请人: Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
发明人: Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
CPC分类号: C04B28/145 , C04B28/26 , C04B2111/0062 , C04B2111/60 , Y10T428/232 , C04B12/04 , C04B20/0048 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/2647 , C04B24/38 , C04B40/0028 , C04B2103/12 , C04B2103/22 , C04B2103/67 , C04B14/06 , C04B22/143
摘要: In a method of making a gypsum slurry, a polycarboxylate dispersant, a modifier and a hydraulic material comprising stucco are selected for use in the slurry. These components are then combined with water to form a slurry, where the modifier is added to the slurry prior to formation of a slurry phase by the water, the stucco and the dispersant. The modifier has been shown to be less effective when added after the dispersant and stucco have been contacted in an aqueous slurry. In a preferred embodiment, an amount of stucco is obtained and the modifier and dispersant are selected. A predissolved solution of a dispersant and modifier is prepared in water to form a solution prior to the addition of the stucco. After mixing the solution, the stucco is added to form the slurry. Optionally, the slurry is then shaped into a product and allowed to set.
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公开(公告)号:US20060281837A1
公开(公告)日:2006-12-14
申请号:US11152661
申请日:2005-06-14
申请人: Dennis Lettkeman , Qingxia Liu , John Wilson , Brian Randall , David Blackburn , Michael Shake
发明人: Dennis Lettkeman , Qingxia Liu , John Wilson , Brian Randall , David Blackburn , Michael Shake
CPC分类号: C04B28/145 , C04B24/2647 , C04B2111/0062 , C04B7/02 , C04B12/04 , C04B22/064 , C04B22/10 , C04B22/143 , C04B22/16
摘要: A slurry is made including water, at least 50% by weight calcium sulfate hemihydrate, and a specific polycarboxylate dispersant prepared using at least three repeating units. A first repeating unit is a vinyl ether-type repeating unit. A second repeating unit includes a maleic acid-type repeating unit. A third repeating unit includes an acrylic acid-type repeating unit. The polymer dispersant has a molecular weight of from about 20,000 to about 80,000 Daltons. The slurry made from this composition can be made at reduced water levels to speed drying and reduce drying costs.
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公开(公告)号:US20060280970A1
公开(公告)日:2006-12-14
申请号:US11152324
申请日:2005-06-14
申请人: Dennis Lettkeman , John Wilson , William Bedwell
发明人: Dennis Lettkeman , John Wilson , William Bedwell
CPC分类号: C04B28/147 , C04B2111/00146 , C04B2111/10 , C04B2111/60 , C04B22/10 , C04B24/26 , C04B24/2647 , C04B24/38 , C04B2103/12 , C04B2103/22 , C04B2103/44 , C04B2103/50 , C04B2103/54 , C04B2103/67 , C04B7/02 , C04B22/064 , C04B22/16
摘要: A composition is disclosed for a mixture to be used in conjunction with water for preparing a slurry that hydrates to form a high strength flooring compound. The mixture includes from about 50% to about 98% by weight calcium sulfate hemihydrate. A three repeating unit polycarboxylate dispersant is included in the mixture in amounts from about 0.2% to about 10% by weight. The repeating units include a polyether repeating unit, an acrylic acid-type repeating unit and a maleic acid-type repeating unit. A modifier that enhances the efficacy of the dispersant is also a component of the mixture. When combined with recommended amounts of water, a slurry is formed that is useful as a flooring composition.
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公开(公告)号:US11619400B2
公开(公告)日:2023-04-04
申请号:US15340468
申请日:2016-11-01
申请人: John Wilson , Richard Osienski , Mark Rawson , Brian Hannigan , David Abad , Omar Fiallos
发明人: John Wilson , Richard Osienski , Mark Rawson , Brian Hannigan , David Abad , Omar Fiallos
摘要: A networked boiler system includes a first boiler, at least one secondary boiler in operative connection with the first boiler and having a plurality of internal sub boilers, a boiler control connected to one of the first or secondary boilers, and an external control connected to one of the first or secondary boilers. The boiler control enables the first boiler to control a boiler parameter of the first boiler, the at least one secondary boiler, and the plurality of internal sub boilers of the at least one secondary boiler. A method of operating a networked boiler system includes the steps of connecting a first boiler to at least one secondary boiler, the secondary boiler including a plurality of nested sub boilers; connecting the first boiler to an external control; and with a boiler control connected to one of said first boiler and said at least one secondary boiler, controlling a boiler parameter of said first boiler, said at least one secondary boiler, and said plurality of nested sub boilers of said at least one secondary boiler.
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公开(公告)号:US20220258375A1
公开(公告)日:2022-08-18
申请号:US17652289
申请日:2022-02-24
申请人: John Wilson
发明人: John Wilson
摘要: The present invention generally relates to improvements in chainsaws. In particular, the present invention relates to mechanisms for preventing the chain of a chainsaw from falling off the guide bar of the chain saw. According to one embodiment, a magnetic chainsaw chain retention mechanism comprising a magnetic guide bar is provided. The mechanism maintains the chain of a chainsaw on the chainsaw guide bar during use of the chainsaw. As heat expands the overall length of the chain while the chainsaw is running, a magnetic force attracts the chain to the guide bar thus preventing it from falling off. In another embodiment, a magnetic chain is provided, such that the chain remains attracted to the guide bar, wherein, a magnetic force attracts the chain to the guide bar if and when it expands thus preventing it from falling off the guide bar.
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公开(公告)号:US10065732B2
公开(公告)日:2018-09-04
申请号:US13590326
申请日:2012-08-21
申请人: William Simpkins , John Wilson , David Dorris
发明人: William Simpkins , John Wilson , David Dorris
摘要: A blade tracking system including a detector having one or more sensors to detect radiation from at least one field of view of the detector, the one or more sensors generating signals based on changes in incident radiation to the one or more sensors as a rotor blade passes the field of view, and a processor to determine a pass time for the rotor blade to pass through the at least one field of view based on the generated signals.
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