Patents by Inventor Daniel M. Willis
Daniel M. Willis 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: 11852247Abstract: A dispenser includes a housing, an inverted container disposed in the housing, a outlet nozzle, a pump, a first check valve, and a second check valve. The pump is disposed between the container and the outlet nozzle. The pump includes a pump inlet a pump outlet, and a pump chamber. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the pump and the outlet nozzle, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the outlet nozzle, and the second check valve has a second cracking pressure. The second cracking pressure of the second check valve is greater than the first cracking pressure of the first check valve.Type: GrantFiled: July 28, 2021Date of Patent: December 26, 2023Assignee: GOJO Industries, Inc.Inventors: John J. McNulty, Donald R. Harris, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall
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Patent number: 11819171Abstract: Exemplary soap, sanitizer and lotion dispensers are disclosed herein. An exemplary dispenser includes a housing; a receptacle for receiving a container; a container of fluid comprising soap, sanitizer or lotion; a pump in fluid communication with the container; a power source; a pump coupled to a motor and pulse width modulation circuitry in circuit communication with the power source and the motor. The pulse width modulation circuitry is initially set to cause a selected dose of fluid to be dispensed at a base speed. A sensor for detecting a parameter indicative of an actual speed of a dispense of the fluid is also included. When the actual speed of the dispense of fluid is less than the base speed or greater than the base speed, the pulse width modulation circuitry adjusts the pulse width to cause the speed of a following dispense of fluid to be closer to the base speed.Type: GrantFiled: June 2, 2022Date of Patent: November 21, 2023Assignee: GOJO Industries, Inc.Inventors: John J. McNulty, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall, Donald R. Harris
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Patent number: 11712409Abstract: A low-water cleansing composition is provided that includes 5.0 wt. % to less than 40 wt. % of one or more C1-C8 alcohol, at least 10.0 wt. % of a mixture of two or more surfactants, at least 0.05 wt. % of a pH adjuster; and water, the concentrations being based on a total weight of the low-water cleansing composition.Type: GrantFiled: November 1, 2021Date of Patent: August 1, 2023Assignee: GOJO Industries, Inc.Inventors: Venkatesan Padyachi, Srini Venkatesh, Daniel M. Willis, Nick E. Ciavarella, Dewain Garner
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Publication number: 20230190049Abstract: A foam dispenser includes a housing, a drive motor, and a foam pump. The foam pump includes a pump housing, and a molded multi-chamber diaphragm. The molded multi-chamber diaphragm includes a liquid pump diaphragm having a liquid pump stem and two or more air pump chambers each having an air pump stem. The length of the liquid pump stem is longer than the air pump stem. The foam pump further includes one or more outlet valves, a mixing chamber, an outlet for dispensing foam wherein the outlet is in fluid communication with the foam cartridge; and an actuator for sequentially actuating the liquid pump chamber and the two or more air pump chambers, wherein there is lost motion between the actuator and the liquid pump diaphragm.Type: ApplicationFiled: February 15, 2023Publication date: June 22, 2023Inventors: Donald R. Harris, John J. McNulty, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Patent number: 11647872Abstract: An dispenser includes a housing, a container disposed in the housing for holding a liquid, a nozzle, and a pump. The pump is disposed between the container and the nozzle. The pump includes a pump inlet, a pump outlet, a pump chamber, a first check valve, and a second check valve. The pump inlet is in fluid communication with the container and the pump chamber, and the pump outlet is in fluid communication with the pump chamber and the nozzle. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the container and the pump, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the pump, and the second check valve has a second cracking pressure. The first cracking pressure of the first check valve is greater than the second cracking pressure of the second check valve.Type: GrantFiled: February 10, 2022Date of Patent: May 16, 2023Assignee: GOJO Industries, Inc.Inventors: John J. McNulty, Donald R. Harris, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Patent number: 11596273Abstract: A foam dispenser includes a housing, a drive motor, and a foam pump. The foam pump includes a pump housing, and a molded multi-chamber diaphragm. The molded multi-chamber diaphragm includes a liquid pump diaphragm having a liquid pump stem and two or more air pump chambers each having an air pump stem. The length of the liquid pump stem is longer than the air pump stem. The foam pump further includes one or more outlet valves, a mixing chamber, an outlet for dispensing foam wherein the outlet is in fluid communication with the foam cartridge; and an actuator for sequentially actuating the liquid pump chamber and the two or more air pump chambers, wherein there is lost motion between the actuator and the liquid pump diaphragm.Type: GrantFiled: January 27, 2021Date of Patent: March 7, 2023Assignee: GOJO Industries, Inc.Inventors: Donald R. Harris, John J. McNulty, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Publication number: 20220287516Abstract: Exemplary soap, sanitizer and lotion dispensers are disclosed herein. An exemplary dispenser includes a housing; a receptacle for receiving a container; a container of fluid comprising soap, sanitizer or lotion; a pump in fluid communication with the container; a power source; a pump coupled to a motor and pulse width modulation circuitry in circuit communication with the power source and the motor. The pulse width modulation circuitry is initially set to cause a selected dose of fluid to be dispensed at a base speed. A sensor for detecting a parameter indicative of an actual speed of a dispense of the fluid is also included. When the actual speed of the dispense of fluid is less than the base speed or greater than the base speed, the pulse width modulation circuitry adjusts the pulse width to cause the speed of a following dispense of fluid to be closer to the base speed.Type: ApplicationFiled: June 2, 2022Publication date: September 15, 2022Inventors: John J. McNulty, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall, Donald R. Harris
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Patent number: 11350797Abstract: Exemplary soap, sanitizer and lotion dispensers are disclosed herein. An exemplary dispenser includes a housing; a receptacle for receiving a container; a container of fluid comprising soap, sanitizer or lotion; a pump in fluid communication with the container; a power source; a pump coupled to a motor and pulse width modulation circuitry in circuit communication with the power source and the motor. The pulse width modulation circuitry is initially set to cause a selected dose of fluid to be dispensed at a base speed. A sensor for detecting a parameter indicative of an actual speed of a dispense of the fluid is also included. When the actual speed of the dispense of fluid is less than the base speed or greater than the base speed, the pulse width modulation circuitry adjusts the pulse width to cause the speed of a following dispense of fluid to be closer to the base speed.Type: GrantFiled: October 31, 2018Date of Patent: June 7, 2022Assignee: GOJO Industries, Inc.Inventors: John J. McNulty, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall, Donald R. Harris
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Publication number: 20220160184Abstract: An dispenser includes a housing, a container disposed in the housing for holding a liquid, a nozzle, and a pump. The pump is disposed between the container and the nozzle. The pump includes a pump inlet, a pump outlet, a pump chamber, a first check valve, and a second check valve. The pump inlet is in fluid communication with the container and the pump chamber, and the pump outlet is in fluid communication with the pump chamber and the nozzle. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the container and the pump, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the pump, and the second check valve has a second cracking pressure. The first cracking pressure of the first check valve is greater than the second cracking pressure of the second check valve.Type: ApplicationFiled: February 10, 2022Publication date: May 26, 2022Inventors: John J. McNulty, Donald R. Harris, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Publication number: 20220062128Abstract: A low-water cleansing composition is provided that includes 5.0 wt. % to less than 40 wt. % of one or more C1-C8 alcohol, at least 10.0 wt. % of a mixture of two or more surfactants, at least 0.05 wt. % of a pH adjuster; and water, the concentrations being based on a total weight of the low-water cleansing composition.Type: ApplicationFiled: November 1, 2021Publication date: March 3, 2022Inventors: Venkatesan Padyachi, Srini Venkatesh, Daniel M. Willis, Nick E. Ciavarella, Dewain Garner
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Patent number: 11246457Abstract: A dispenser having a housing, a container disposed in the housing for holding a liquid, a nozzle, and a pump. The pump includes a pump inlet, a pump outlet, a pump chamber. The pump inlet is in fluid communication with the container and the pump chamber, and the pump outlet is in fluid communication with the pump chamber and the nozzle. The pump chamber is movable between an expanded position and a compressed position. A first check valve is disposed between the container and the pump, and the first check valve has a first cracking pressure. A second check valve is disposed between the first check valve and the pump, and the second check valve has a second cracking pressure. The first cracking pressure of the first check valve is greater than the second cracking pressure of the second check valve.Type: GrantFiled: May 29, 2019Date of Patent: February 15, 2022Assignee: GOJO Industries, Inc.Inventors: John J. McNulty, Donald R. Harris, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella, Janice L. Moore
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Patent number: 11185482Abstract: A low-water cleansing composition is provided that includes 5.0 wt. % to less than 40 wt. % of one or more C1-C8 alcohol, at least 10.0 wt. % of a mixture of two or more surfactants, at least 0.05 wt. % of a pH adjuster; and water, the concentrations being based on a total weight of the low-water cleansing composition.Type: GrantFiled: May 1, 2018Date of Patent: November 30, 2021Assignee: GOJO Industries, Inc.Inventors: Venkatesan Padyachi, Srini Venkatesh, Daniel M. Willis, Nick E. Ciavarella, Dewain Garner
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Publication number: 20210356046Abstract: A dispenser includes a housing, an inverted container disposed in the housing, a outlet nozzle, a pump, a first check valve, and a second check valve. The container holds a fluid. The pump is disposed between the container and the outlet nozzle. The pump includes a pump inlet in fluid communication with the container, a pump outlet in fluid communication with the outlet nozzle, and a pump chamber in fluid communication with the pump inlet and the pump outlet. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the pump and the outlet nozzle, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the outlet nozzle, and the second check valve has a second cracking pressure. The second cracking pressure of the second check valve is greater than the first cracking pressure of the first check valve.Type: ApplicationFiled: July 28, 2021Publication date: November 18, 2021Inventors: John J. McNulty, Donald R. Harris, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall
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Patent number: 11089913Abstract: An dispenser includes a housing, a container disposed in the housing for holding a liquid, a nozzle, and a pump. The pump is disposed between the container and the nozzle. The pump includes a pump inlet, a pump outlet, a pump chamber, a first check valve, and a second check valve. The pump inlet is in fluid communication with the container and the pump chamber, and the pump outlet is in fluid communication with the pump chamber and the nozzle. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the container and the pump, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the pump, and the second check valve has a second cracking pressure. The first cracking pressure of the first check valve is greater than the second cracking pressure of the second check valve.Type: GrantFiled: October 31, 2018Date of Patent: August 17, 2021Assignee: GOJO Industries, Inc.Inventors: John J. McNulty, Donald R. Harris, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Patent number: 11079022Abstract: A dispenser includes a housing, an inverted container disposed in the housing, a outlet nozzle, a pump, a first check valve, and a second check valve. The container holds a fluid. The pump is disposed between the container and the outlet nozzle. The pump includes a pump inlet in fluid communication with the container, a pump outlet in fluid communication with the outlet nozzle, and a pump chamber in fluid communication with the pump inlet and the pump outlet. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the pump and the outlet nozzle, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the outlet nozzle, and the second check valve has a second cracking pressure. The second cracking pressure of the second check valve is greater than the first cracking pressure of the first check valve.Type: GrantFiled: February 22, 2019Date of Patent: August 3, 2021Assignee: GOJO Industries, Inc.Inventors: John J. McNulty, Donald R. Harris, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall
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Publication number: 20210145221Abstract: A foam dispenser includes a housing, a drive motor, and a foam pump. The foam pump includes a pump housing, and a molded multi-chamber diaphragm. The molded multi-chamber diaphragm includes a liquid pump diaphragm having a liquid pump stem and two or more air pump chambers each having an air pump stem. The length of the liquid pump stem is longer than the air pump stem. The foam pump further includes one or more outlet valves, a mixing chamber, an outlet for dispensing foam wherein the outlet is in fluid communication with the foam cartridge; and an actuator for sequentially actuating the liquid pump chamber and the two or more air pump chambers, wherein there is lost motion between the actuator and the liquid pump diaphragm.Type: ApplicationFiled: January 27, 2021Publication date: May 20, 2021Inventors: Donald R. Harris, John J. McNulty, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Patent number: 10912426Abstract: A foam dispenser includes a housing, a drive motor, and a foam pump. The foam pump includes a pump housing, and a molded multi-chamber diaphragm. The molded multi-chamber diaphragm includes a liquid pump diaphragm having a liquid pump stem and two or more air pump chambers each having an air pump stem. The length of the liquid pump stem is longer than the air pump stem. The foam pump further includes one or more outlet valves, a mixing chamber, an outlet for dispensing foam wherein the outlet is in fluid communication with the foam cartridge; and an actuator for sequentially actuating the liquid pump chamber and the two or more air pump chambers, wherein there is lost motion between the actuator and the liquid pump diaphragm.Type: GrantFiled: June 14, 2018Date of Patent: February 9, 2021Assignee: GOJO Industries, Inc.Inventors: Donald R. Harris, John J. McNulty, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Publication number: 20190274487Abstract: An dispenser includes a housing, a container disposed in the housing for holding a liquid, a nozzle, and a pump. The pump is disposed between the container and the nozzle. The pump includes a pump inlet, a pump outlet, a pump chamber, a first check valve, and a second check valve. The pump inlet is in fluid communication with the container and the pump chamber, and the pump outlet is in fluid communication with the pump chamber and the nozzle. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the container and the pump, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the pump, and the second check valve has a second cracking pressure. The first cracking pressure of the first check valve is greater than the second cracking pressure of the second check valve.Type: ApplicationFiled: May 29, 2019Publication date: September 12, 2019Inventors: John J. McNulty, Donald R. Harris, Aaron D. Marshall, Daniel M. Willis, Nick E. Ciavarella
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Publication number: 20190271399Abstract: A dispenser includes a housing, an inverted container disposed in the housing, a outlet nozzle, a pump, a first check valve, and a second check valve. The container holds a fluid. The pump is disposed between the container and the outlet nozzle. The pump includes a pump inlet in fluid communication with the container, a pump outlet in fluid communication with the outlet nozzle, and a pump chamber in fluid communication with the pump inlet and the pump outlet. The pump chamber is movable between an expanded position and a compressed position. The first check valve is disposed between the pump and the outlet nozzle, and the first check valve has a first cracking pressure. The second check valve is disposed between the first check valve and the outlet nozzle, and the second check valve has a second cracking pressure. The second cracking pressure of the second check valve is greater than the first cracking pressure of the first check valve.Type: ApplicationFiled: February 22, 2019Publication date: September 5, 2019Inventors: John J. McNulty, Donald R. Harris, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall
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Publication number: 20190133384Abstract: Exemplary soap, sanitizer and lotion dispensers are disclosed herein. An exemplary dispenser includes a housing; a receptacle for receiving a container; a container of fluid comprising soap, sanitizer or lotion; a pump in fluid communication with the container; a power source; a pump coupled to a motor and pulse width modulation circuitry in circuit communication with the power source and the motor. The pulse width modulation circuitry is initially set to cause a selected dose of fluid to be dispensed at a base speed. A sensor for detecting a parameter indicative of an actual speed of a dispense of the fluid is also included. When the actual speed of the dispense of fluid is less than the base speed or greater than the base speed, the pulse width modulation circuitry adjusts the pulse width to cause the speed of a following dispense of fluid to be closer to the base speed.Type: ApplicationFiled: October 31, 2018Publication date: May 9, 2019Inventors: John J. McNulty, Nick E. Ciavarella, Daniel M. Willis, Aaron D. Marshall, Donald R. Harris