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John Geoffrey Chan

John Geoffrey Chan, Maineville, OH US

Patent application numberDescriptionPublished
20090025162Electric toothbrushes - A toothbrush has a body, a brush head, and a neck extending between the body and the brush head. The toothbrush also has a massaging element, a plurality of bristles, and a plurality of massaging tips. The brush head has a front face and a rear face. The massaging element is disposed on the rear face of the brush head, while the plurality of bristles and the plurality of massaging tips extend from the front face.01-29-2009
20100133294MULTI-CHAMBER MATERIAL DISPENSING SYSTEM AND METHOD FOR MAKING SAME - Material dispensing systems and methods for make such systems are described. The material dispensing systems employ a collapsible container having at least two distinct chambers, and is at least partially surrounded by an elastically deformable band. The band stretches as the container is filled with a flowable composition, thereby creating potential energy which can then be used to dispense the composition in lieu of a propellant and/or pressurized container.06-03-2010
20100133295MATERIAL DISPENSING SYSTEM AND METHOD FOR MAKING SAME - Material dispensing systems and methods for make such systems are described. The material dispensing systems employ a collapsible container that is at least partially surrounded by an elastically deformable band. The band stretches as the container is filled with a flowable composition, thereby creating potential energy which can then be used to dispense the composition in lieu of a propellant and/or pressurized container.06-03-2010
20100133301VALVE AND DISPENSER COMPRISING SAME - A valve having a sleeve comprising a sleeve wall including an inner surface; and a plug positioned within the sleeve, the plug comprising at least one portion that is elastically deformable. The plug forms a blind hole extending into the plug from one end thereof to define a plug side wall, and a flow passage that extends through the plug side wall that is either open or openable. The plug defines a valve closed position in an unstressed state, yet is capable of elastically deforming to define a flow channel between the plug and the sleeve in a valve open position. A dispenser containing such a valve is also provided.06-03-2010
20110083287Electric Toothbrushes - An electric toothbrush is provided. The electric toothbrush has a handle, a head with a carriers and a longitudinal axis, and a neck disposed between the handle and the head. A motor is disposed within the handle. A shaft is operatively connected to the motor. The shaft is operatively connected to the carrier to move the carrier in a first motion. The carrier is capable of moving in a second motion when subjected to user forces.04-14-2011

Patent applications by John Geoffrey Chan, Maineville, OH US

John Geoffrey Chan, Loveland, OH US

Patent application numberDescriptionPublished
20080271271Modular electric toothbrushes - An electric toothbrush having movable and static carriers which independently slidingly engage the receiving member of the toothbrush head within channels defined by the surfaces of the receiving member. Such carriers can be releasably removable to replace or exchange the carriers. Also disclosed is a toothbrush having a unique assembly utilizing a one-piece housing in combination with a movable bristle carrier that is engaged on a receiving member located at the distal end of the toothbrush, and a static carrier such as a brush head tip which is secured thereto. The unitary housing reduces the number of components of the toothbrush and decreases manufacturing costs. The static and movable carriers may be replaced with other carriers and allows a consumer to individually tailor the brush to provide a particular brushing configuration. An electric toothbrush having a particular assembly, bristle configuration, and drive mechanism is disclosed. The assembly, bristle configuration, and drive mechanism are such that operation of the brush is highly efficient and more economical than currently known toothbrushes. Specifically, an electric toothbrush is disclosed comprising a body, a head, and a neck extending therebetween. The head comprises a receiving member and several unique and preferred arrangements of static and movable carriers. The carriers can comprise bristles, and the static bristle carrier(s) can at least partially surround the collection of movable bristle carrier(s). A motor and drive train impart motion to the movable carrier(s).11-06-2008
20080301890Electric Toothbrush Comprising An Electrically Powered Element - An electric toothbrush having a handle, a head, and a neck extending between the handle and the head is disclosed. The handle has a hollow interior region having a motor and an electrical power source. The head includes an ultrasonic transducer and a bristle field. The ultrasonic transducer is in electrical communication with the electrical power source, and a shaft is operatively connected to the motor for moving the bristle field.12-11-2008
20100132141Electric Toothbrushes - A toothbrush has a handle, a head and a neck disposed between and connecting the head and the handle. A bristle carrier is disposed on the head. The bristle carrier has a plurality of outer tufts and a plurality of intermediate tufts. The plurality of intermediate tufts are disposed inboard of the plurality of outer tufts. Each of the plurality of intermediate tufts have a height, and at least a portion of the plurality of intermediate tufts have notches. The notches are oriented in a direction which is generally perpendicular to the height.06-03-2010

Patent applications by John Geoffrey Chan, Loveland, OH US

John Geoffrey Chan, City Maineville, OH US

Patent application numberDescriptionPublished
20090044357Electric toothbrushes - A toothbrush has a handle and a head attached to the handle. The head has a top face and a bottom face, wherein the top face comprises a plurality of cleaning members and the bottom face comprises an elastomeric surface. The elastomeric surface forms a hill and wherein the hill comprises a plurality of protrusions.02-19-2009