Patents by Inventor Leonard D. Rood
Leonard D. Rood 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: 7022374Abstract: A liquid which has a negative static electrical charge is pre-coated onto a paper or fabric towel and the coated, negative static electrically charged paper or fabric towel is rubbed onto positive, static electrically charged glass windows, automobile and truck windshields, and glass mirrors in sufficient quantity to cause the surfaces to become negatively charged. Since like static electrical charges will repel each other, the negative static electrically charged liquid will repel negative static electrically charged human fibers, dust and other negatively charged fibers. If the film is not thin, the coating will be streaked. The coating is water insoluble and preferably is a water insoluble silicone oil, preferably in an amount of at least 70% silicone and most preferably comprises liquid polydimethylsiloxane. The coating can be mixed with a water insoluble, silicone soluble, liquid comprising the remaining 30% or less.Type: GrantFiled: July 21, 2005Date of Patent: April 4, 2006Inventor: Leonard D. Rood
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Publication number: 20040185178Abstract: A liquid which has a negative static electrical charge is coated onto positive static electrically charged glass windows, automobile and truck windshields and glass mirrors, causing the surfaces to become negatively charged. Since like static electrical charges will repel each other, the negative static electrically charged liquid coating will repel negative static electrically charged human fibers, dust and other negatively charged particles. The liquid can be coated onto the surface and then rubbed to a thin film by using a paper or fabric sheet or a circular rotating polisher. The liquid can also be pre-coated onto a paper or fabric sheet or a circular rotating polisher and then rubbed onto the surface to produce a thin film. If the film is not thin, the coating will be streaked.Type: ApplicationFiled: March 20, 2003Publication date: September 23, 2004Inventor: Leonard D. Rood
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Patent number: 6641750Abstract: An improved fire retardant cellulose insulation with reduced density and reduced settling. A method consists of adding a material, the fibers of which have a positive electrostatic charge, is added onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of an inorganic, non-hygroscopic powder and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Increasing the amount of antistat will decrease settling at the expense of increasing density. Adding water to the insulation system will neutralize static electricity and minimize settling. Fibers such as ground cardboard, wood mulch, sawdust, and fiberglass fibers are examples of materials with electrostatically positively charged fibers.Type: GrantFiled: January 10, 2003Date of Patent: November 4, 2003Inventor: Leonard D. Rood
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Patent number: 6641749Abstract: A method for manufacturing a tire retardant cellulose insulation with reduced density and reduced settling. The method consists of adding a material, the fibers of which have a positive electrostatic charge, onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of limestone and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Fibers such as ground cardboard, wood mulch, sawdust, and fiberglass fibers are examples of materials with electrostatically positively charged fibers.Type: GrantFiled: April 29, 2002Date of Patent: November 4, 2003Inventor: Leonard D. Rood
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Publication number: 20030098435Abstract: An improved fire retardant cellulose insulation with reduced density and reduced settling. A method consists of adding a material, the fibers of which have a positive electrostatic charge, is added onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of an inorganic, non-hygroscopic powder and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Increasing the amount of antistat will decrease settling at the expense of increasing density. Adding water to he insulation system will neutralize static electricity and minimize settling. Fibers such as ground cardboard, wood mulch, sawdust, fiberglass fibers and polyester fibers are examples of materials with electrostatically positively charged fibers.Type: ApplicationFiled: January 10, 2003Publication date: May 29, 2003Inventor: Leonard D. Rood
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Publication number: 20030039818Abstract: A method for manufacturing a fire retardant cellulose insulation with reduced density and reduced settling. The method consists of adding a material, the fibers of which have a positive electrostatic charge, onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of limestone and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Fibers such as ground cardboard, wood mulch, sawdust, fiberglass fibers and polyester fibers, are examples of materials with electrostatically positively charged fibers.Type: ApplicationFiled: August 24, 2001Publication date: February 27, 2003Inventor: Leonard D. Rood
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Publication number: 20030039751Abstract: A method for manufacturing a fire retardant cellulose insulation with reduced density and reduced settling. The method consists of adding a material, the fibers of which have a positive electrostatic charge, onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of limestone and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Fibers such as ground cardboard, wood mulch, sawdust, fiberglass fibers and polyester fibers are examples of materials with electrostatically positively charged fibers.Type: ApplicationFiled: April 29, 2002Publication date: February 27, 2003Inventor: Leonard D. Rood
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Patent number: 5455065Abstract: A method for manufacturing fire retardant cellulose fibers. The method comprises mixing limestone with shredded cellulosic fibers, mixing an acidic agent with the fibers, and depositing water on the mixture of fibers, limestone and acidic agent. A chemical reaction results from the limestone and the acidic agent being combined in a sufficiently moist environment. The reaction liberates carbon dioxide gas which causes a mechanical foaming action, thereby breaking down and distributing the produced particles of the chemical reaction. The preferred acidic agent is ammonium sulfate combined with boric acid. The method preferably includes the application of an anti-static agent in the step that includes mixing the limestone with the fibers. The water deposited preferably comprises an amount substantially in a range from 6%-16% of the weight of the fibers.Type: GrantFiled: September 12, 1994Date of Patent: October 3, 1995Inventor: Leonard D. Rood
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Patent number: 5399375Abstract: The coating of shredded paper insulation with a powdered or particulate fire retardant agent mixed with an anti-static agent to enhance coating is further improved by applying a precoat of a mixture of fire retardant agent and anti-static agent, the precoat mixture containing only a relatively minor portion of the final fire retardant coating, and subsequently coating the paper particles with the remaining fire retardant agent.Type: GrantFiled: March 14, 1994Date of Patent: March 21, 1995Inventor: Leonard D. Rood
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Patent number: 4645696Abstract: In connection with the manufacture of cellulosic insulation of the type utilizing shredded newspaper which is treated with a fire retardant chemical composition and used for the thermal insulation of building structures, an anti-static agent is mixed and adhered to the fire retardant agent prior to depositing the fire retardant agent on the shredded cellulosic material. The anti-static agent may also be introduced into the finished product with desirable but not as significant improvements in the insulation and its manufacture.Type: GrantFiled: December 6, 1985Date of Patent: February 24, 1987Inventor: Leonard D. Rood
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Patent number: 4184311Abstract: A flame retardant thermal insulation material comprising a dry, shredded cellulosic material, such as newsprint, which is coated with a dry phosphorous-containing, flame retardant composition. The composition is one which is capable of decomposing near the ignition temperature of the shredded paper, which is between 120 degrees and Celsius and 250 degrees Celsius and preferably includes a plurality of compounds which decompose at different temperatures spaced within this range to provide the stagewise release of combustion inhibiting agents. The composition can be a single compound such as calcium phosphate but preferably is a combination of similar compounds such as (NH.sub.4).sub.2 HPO.sub.4, CaH.sub.4 (PO.sub.4).sub.2, CaHPO.sub.4 and triple super phosphate. Further, the phosphorous composition is preferably combined with urea. Elemental sulfur powder may be included with any of the previous compositions as a smoke retardant.Type: GrantFiled: January 11, 1978Date of Patent: January 22, 1980Inventor: Leonard D. Rood
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Patent number: 3981654Abstract: Urethane plastic foam reinforced with glass fibers is provided, the glass fibers being combined with the plastic foam material prior to foaming. The foaming of the plastic material is physically controlled and restrained to achieve particular desired physical characteristics of the final product. By restricting the extent of foaming, and by using particular layers of fibers, high fiber concentration and more dense skin areas can be obtained in the foam; the fibers can also be initially distributed in a manner to increase their concentration near the surfaces of the foam body. Apparatus is provided for producing reinforced foam in a continuous manner and a method is also provided for combining the fiber reinforcement and the foamable plastic material in a manner such that the plastic material is disposed between two layers of the fiber reinforcement to assure proper distribution of the fibers in the foam.Type: GrantFiled: November 13, 1974Date of Patent: September 21, 1976Assignee: Owens-Corning Fiberglas CorporationInventors: Leonard D. Rood, Ronald E. Kissell