TH19048Y - Independent float valve assembly - Google Patents

Abstract

------November 29, 2019------(OCR) Page 1 of 1 Summary of Invention: The "Free-Standing Float Valve Set" is a device for installation in floor drains to prevent odors and insects from rising through the drain. It consists of three main parts: the float chamber, a cylindrical float valve with a hemispherical head, and a float chamber cover. The float chamber is a hollow cylinder with internal fins on the sides. The top has a water inlet, and the bottom has a hole for the water outlet, acting as a valve shoulder. There are ring-shaped grooves around the water outlet. The lower sides of the float chamber taper slightly inward. The lightweight cylindrical float floats on water and has a hemispherical head that acts as a valve to open and close the water flow. The top tapers towards the center of the cylindrical cross-section. The float chamber cover has an inverted cup underneath to support the float valve and to redirect water flow to the sides of the float chamber. ------------ Page 1 of 1 Summary of Invention: The "Free-Standing Float Valve Set" is a device for installation in floor drains of bathrooms, toilets, or general building floors. For drainage, odor prevention, and preventing cockroaches or other small animals from passing through the drain opening, this is a ready-made device that can be easily assembled into the drain opening. It is easy to maintain and can be used in other similar applications. It has three main components: a float chamber, a cylindrical float valve with a rounded head that floats on water, and a cover for the float chamber that serves as the water inlet. The bottom of the cover has a cup to support the float valve's buoyancy and control the water flow direction. Inside the bottom of the float chamber, there is a water outlet channel and a ring-shaped shoulder to support the cylindrical float valve, with a sediment trapping ring around the perimeter. The sides of the float chamber have serrations to support the float valve, allowing it to move up and down vertically. The operation of the "independent float valve" assembly uses the natural principle of gravity and buoyancy pressure on the cylindrical float valve, causing it to move up and down. This opens the water outlet channel due to buoyancy pressure when water enters the float chamber and closes the water outlet channel when water is removed. The float valve is operated by the weight of the float valve and its contact surface on the valve shoulder. The float valve moves freely within the float chamber, automatically opening and closing the water drain without the need for any additional mechanical components. It prevents odors and insects (cockroaches, etc.) without requiring constant water in the float chamber. The structure of the independent float valve assembly and the continuous valve shoulder are a single piece of material, requiring no additional components for the valve shoulder. The top of the float valve assembly has a cover that acts as a drain cover, protecting the float valve within the float chamber. The bottom of the cover has an inverted cup that receives the float valve when it rises and directs water flow to the sides of the float valve. The sides of the float chamber have fins to support the float's vertical movement, allowing water to flow easily through the sides of the float valve.

Claims (5)

------04/02/2564------(OCR) 1. Independent float valve assembly consists of: Float chamber (1) which is a hollow cylinder with a rim on top of the water inlet (9); Inside the float chamber (2) there are fins on the sides (10) positioned along the length of the float chamber (2); The middle of the bottom of the float chamber has a round hole (5) with a rim (6); The diameter of the round hole (5) is smaller than the inner diameter of the float chamber (2); The rim of the round hole (6) acts as the valve shoulder and water outlet; Around the valve shoulder (6) there is a ring groove for trapping sediment (4); The lower wall of the float chamber (3) is sloped inclined toward the water outlet (5); Inside the float chamber (2) there is a float valve (7) which is a cylindrical shape with a rounded head and acts as a valve that fits snugly against the valve shoulder (6); The top of the float valve (12) is cut inclined toward the center of the cross-section of the float valve (7); The top of the float chamber (1) has a screen (8) covering the inlet of the float chamber. (1) It is a channel for water to pass into the float chamber (2) and acts as a filter for debris. Under the screen (8) there is an inverted cup (11) which is approximately the same size as the top of the float valve (12). The special characteristic of the independent float valve assembly is that the opening and closing of the water drain channel by the float valve (7) moves up and down inside the float chamber (2) independently between (10) cycles. The float valve (7) rests on the valve shoulder (6), closing the water drain channel (5) at all times. When water enters the float chamber (2), the float valve (7) will lift up, opening the water drain channel (5), allowing the water to drain out to the bottom. Once the water in the float chamber has drained out, the float valve (7) will lower down to rest on the valve shoulder (6), closing the water drain channel (5) as before. ------------ ------29/11/2019------(OCR) Page 1 of 2 pages of claims 1 Structural characteristics of the independent float valve assembly It consists of three main structural parts: 1.1 Float chamber (2) which is shaped like a hollow cylinder with an inlet channel at the top and a smooth edge (9) on the sides. Inside the float chamber are small fins (10) arranged along the length of the cylindrical float chamber (2). In the middle of the bottom of the cylindrical float chamber is a round hole (5). The diameter of the round hole is smaller than the inner diameter of the float chamber (2) and has a smooth edge that acts as a shoulder, valve, and outlet (5). Around the outlet channel are ring grooves to trap sediment (4). The lower wall of the cylindrical float chamber tapers toward the outlet channel (3). The cross-sectional diameter of the cylinder and the length of the cylinder, called the float chamber, are appropriately sized for general use drainage pipes and are related to the size of the semi-spherical cylindrical float valve that is placed inside the float chamber. 1.2 Folded screen behind the float chamber (8) which acts as a channel for water to pass into the float chamber and filters out debris. Under the screen is an inverted cup (11) which supports the inverted cup slightly away from the screen. The size and shape of the inverted cup are appropriately sized to support the back of the cylindrical float valve (7). When the cylindrical float valve (7) moves up, The inverted cup serves to prevent the cylindrical float valve from escaping the float chamber (2), prevents the back of the cylindrical float valve from blocking or reducing the area of the water inlet to the float chamber (8), and serves to divert the flow of water to flow through the sides of the float chamber to the bottom and reduce the water pressure acting on the back of the cylindrical float valve. 1.3 Hemispherical Float Valve (7) is a lightweight, floating cylinder with a hemispherical shape at the bottom end, having a diameter equal to the cylinder's diameter, larger than the water outlet (3). It acts as a valve that fits snugly against the water outlet, called the valve shoulder (6). The top of the cylindrical float valve tapers toward the center of the cylinder's cross-section, fitting perfectly against the inverted cup (11) under the screen. The size of the cylindrical float valve is smaller than the float chamber, so it can be placed inside the cylindrical float chamber (2) between the fins inside the float chamber and can move up and down inside the float chamber (2) in a distance sufficient to properly close and open the drain by placing on the valve shoulder (6) closing the drain channel at all times. When water enters the float chamber, the cylindrical float valve (7) will float up, opening the water channel (5) to allow the water to drain out. 2. New technical characteristics developed from the original ones include: 2.1 Development of the float valve from the original spherical shape to a cylindrical valve with a rounded hemisphere head. 2.1 The cylinder is developed to increase the volume of the float valve, thus increasing its resistance to water pressure. Page 2 of the two faces can enlarge the drain hole (5) at the bottom of the float chamber in a proportional manner, thus draining water more and faster. 2.2 The mesh cover behind the float (8) is developed to have an inverted cup underneath to support the back of the cylindrical float valve (7). When the cylindrical float valve (7) moves up, it stops the movement of the float valve from escaping the float chamber (2), prevents the back of the float valve from blocking or reducing the water inlet area to the float chamber, and diverts the water flow to the sides of the float chamber, reducing the water pressure acting on the back of the float valve. 2.3 The inside of the float chamber is developed to have small side fins to support the cylindrical float valve so that it does not sway with the water flow, and to allow the head of the float valve to rest on the valve shoulder, and the back of the float valve to fit properly into the inverted cup under the mesh. 2.4 The bottom of the wall of the cylindrical float chamber (1) is developed to taper towards the drain so that water can drain into the drain channel easily and quickly. The special feature of the invention is the design of a hemispherical cylindrical float valve to replace the previously existing spherical valve, and in order for the hemispherical cylindrical float valve to work perfectly, it is necessary to develop the design to have additional structures, namely, an inverted cup under the screen (11), fins (10) inside the sides of the float chamber, and reduce the size of the bottom of the float chamber to taper toward the drain hole in relation to the hemispherical head of the valve. ------------ Page 1 of 2 pages Claims 1. The "Free Float Valve Set" is a device for installation in the floor drains of bathrooms, toilets, or general buildings to drain water, prevent odors, and prevent cockroaches or other small animals from passing up through the drain. It consists of a cylindrical float valve chamber (1), the top of which is the water inlet with a rim (9) and a screen (8) covering it to filter out debris. The bottom has a round hole (5) smaller than the inner diameter of the float valve chamber (2), which is used as the water outlet (5). The top edge of the water outlet is made into a ring-shaped shoulder to support a rounded cylindrical float valve (7), which sits snugly on the shoulder. Around the shoulder is a ring-shaped sediment trap (4). Its unique characteristic is that the size of the float valve chamber (2), the float valve (7), and the size of the water outlet (5) are appropriately related to each other, resulting in the operation of draining water, blocking odors, and preventing cockroaches or other small animals from passing up through the drain without the need for any mechanical devices. The float valve is made of general materials that are resistant to acids, alkalis, and high heat, and has a rounded cylindrical shape that floats on water. The float valve (7) moves up and down freely inside the float chamber (2) under the buoyancy and gravity of the earth. Under normal circumstances, when no water has entered the float chamber (2), the float valve (7) rests on the valve shoulder (6), closing the drain port (5) with the contact surface between the valve head and the valve shoulder and the weight of the float valve (7) (gravity). When water enters the float chamber (2) to the point where enough buoyancy is generated, it will lift the float valve (7) to the surface of the water, opening the drain port (5) to allow water to flow down to the bottom. Then the float valve (7) will lower itself to close the drain port (5) once the water has been drained. This operation is automatic. On the sides inside the float chamber there is a (10) to support the float valve's vertical movement. Below the strainer there is an inverted cup (11) to support the buoyancy of the valve (7) and block the direction of water flow. 2. The float valve is cylindrical in shape with a rounded head (7) and has a size and shape that is suitable for the float chamber, the drainage channel at the bottom of the float valve assembly, making it efficient in buoyancy and quick water drainage. 3. The sides of the float chamber have fins (10) to support the float valve to move up and down vertically, allowing water to flow easily through the sides of the valve. 4. The independent float valve cover (8) serves as a drain cover and is attached to the float chamber assembly (1) to keep the float valve in the float chamber (2). 5. At the bottom of the float valve cover, there is an inverted cup (11) which receives the float valve when it rises and directs the water flow through the sides of the float valve (7). It has a unique feature: the "free float valve set" is a complete, ready-made device that works perfectly. It is used for draining water, preventing odors, and preventing cockroaches or small animals from coming up from the drain pipe. The valve seat and structure of the "free float valve set" are one piece; no other parts need to be assembled as a valve seat. Inside the top edge of the float valve set, there is a thread to receive the float valve cover, which holds the float valve set together to close over the drain pipe opening on the floor without falling into the drain. In addition, the "free float valve set" can be easily removed for cleaning.