Patents Assigned to Twinoak Products, Inc.
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Patent number: 4668475Abstract: A cleaning and disinfecting article of manufacture and method are provided wherein the cleaning and disinfecting article of manufacture comprises a cleaning and disinfecting ingredient which includes a cleaning and disinfecting agent, a solid color indicator composition which includes a color indicator agent and a matrix agent supporting the color indicator agent, wherein the matrix agent is a matrix salt; and a stabilizing salt. The cleaning and disinfecting ingredient has a bleaching tendency relative to the color indicator agent such that when the solid color indicator composition is in an aqueous solution of the cleaning and disinfecting ingredient, the presence of the cleaning and disinfecting ingredient in the solution minimizes the display of color in the solution for as long as significant amounts of the cleaning and disinfecting ingredient are present.Type: GrantFiled: January 24, 1985Date of Patent: May 26, 1987Assignee: Twinoak Products, Inc.Inventor: Gilbert K. Meloy
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Patent number: 4605534Abstract: A process for detecting the depletion of a cleaning and disinfecting ingredient in a solution such as the water present in a toilet tank and bowl. A solid composition comprising a color indicator in a matrix is located in the solution along with the ingredient. The porosity of the solid composition is maintained within limits to provide a means for controlling the rate of release of the color indicator into the solution. The cleaning and disinfecting ingredient has a bleaching tendency relative to the color indicator so that a display of color is minimal or non-existent for as long as significant amounts of the ingredient are present. The color indicator is provided in sufficient amounts so that, when considering the controlled rate of release, there will be continued release of color indicator after depletion of the ingredient. This will then provide a substantial display of color whereby depletion of the ingredient can be detected.Type: GrantFiled: November 2, 1983Date of Patent: August 12, 1986Assignee: Twinoak Products, Inc.Inventor: Gilbert K. Meloy
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Patent number: 4587069Abstract: A process for producing a color display means of the type used for detecting the depletion of a cleaning and disinfecting ingredient in a solution such as the water present in a toilet tank and bowl. The display means comprises a solid composition which includes a color indicator in a matrix, and this composition is located in the solution along with the cleaning and disinfecting ingredient. The cleaning and disinfecting ingredient has a bleaching tendency relative to the color indicator so that a display of color is minimal or non-existent for as long as significant amounts of the ingredient are present. The color indicator will, however, provide a substantial display of color after depletion of the ingredient whereby depletion of the ingredient can be detected. The porosity of the solid composition is maintained within limits to provide a means for controlling the rate of release of the color indicator into the solution.Type: GrantFiled: October 31, 1983Date of Patent: May 6, 1986Assignee: Twinoak Products, Inc.Inventor: Gilbert K. Meloy
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Patent number: 4539179Abstract: Method and apparatus for cleansing and disinfecting a toilet tank and toilet bowl by treating the water discharged from the toilet tank each time the toilet is flushed. A passive dosing dispenser that automatically dispenses a disinfectant with each flush is provided in the tank to carry out the cleansing and disinfecting method. The dispenser comprises a series of chambers in fluid communication including a reservoir containing the source of disinfectant, a vented volume control chamber, a delivery tube provided with a dispensing orifice in dynamic fluid communication with liquid in the toilet tank, and a vented standpipe. The respective chambers have volumes selected to provide a controlled dispensing action, and the arrangement of chambers is such that the concentration of the aqueous disinfectant solution discharged remains substantially constant upon repetitive flushing, and/or during extended quiescent periods.Type: GrantFiled: December 27, 1983Date of Patent: September 3, 1985Assignee: Twinoak Products, Inc.Inventor: Gilbert K. Meloy
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Patent number: 4435857Abstract: Method and apparatus for cleansing and disinfecting a toilet tank and toilet bowl by treating the water discharged from the toilet tank each time the toilet is flushed. A passive dosing dispenser that automatically dispenses a disinfectant with each flush is provided in the tank to carry out the cleansing and disinfecting method. The dispenser comprises a series of chambers in fluid communication including a reservoir containing the source of disinfectant, a vented volume control chamber, a delivery tube provided with a dispensing orifice in dynamic fluid communication with liquid in the toilet tank, and a vented standpipe. The respective chambers have volumes selected to provide a controlled dispensing action, and the arrangement of chambers is such that the concentration of the aqueous disinfectant solution discharged remains substantially constant upon repetitive flushing, and/or during extended quiescent periods.Type: GrantFiled: April 2, 1982Date of Patent: March 13, 1984Assignee: Twinoak Products, Inc.Inventor: Gilbert K. Meloy
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Patent number: 4277853Abstract: A toilet bowl cleaning means wherein a container is located within a water tank associated with the bowl with a cleaning compound such as calcium hypochlorite included within the container. A plurality of openings are provided, and this provides exposure to water in the tank so that the compound will be dissolved in the water and thereby delivered to the bowl when the toilet is flushed. The openings may be formed in a centrally located cylinder with the compound located within the cylinder and with a water space between the cylinder and the outer container walls. Controlled amounts of compound are thereby released to the water in this area.Type: GrantFiled: August 27, 1980Date of Patent: July 14, 1981Assignee: Twinoak Products, Inc.Inventor: Richard L. McDuffee