| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137532000 | Weight biased | 15 |
| 20100229972 | Inertially Activated Ejection Valve - An ejector is provided for an induction system in a vibratory system generating vibration, including a dust ejector for an air induction system of an internal combustion engine. An ejection valve is provided by an inertial mass inertially activated and driven by the vibration to discharge contaminant from the induction system. | 09-16-2010 |
| 20140069530 | CHECK VALVE - A check valve is provided for use with variable frequency drives and other applications. In one aspect, the check valve provides a poppet guided by a poppet guide in at least two locations to ensure stability between fully open and fully closed positions. In another aspect, the check valve includes a poppet guide adapted to receive a poppet in a stem receiving channel, the stem receiving channel including guide vanes engaging the poppet and auxilliary channels for self cleaning. | 03-13-2014 |
| 20160186873 | BALL CHECK VALVE APPARATUS - Provided is a ball check valve apparatus including: a first body into which wastewater is introduced; a second body coupled to the first body to be communicated with the first body and configured to discharge the wastewater introduced into the first body; and a valve member disposed in the first body such that the valve member is movable up and down in the first body and configured to close an opening/closing hole formed in the first body by a self-weight thereof and open the opening/closing hole by a pressure of wastewater introduced through the opening/closing hole. | 06-30-2016 |
| 137533000 | Valve body is the weight | 12 |
| 20080236681 | Flap Valve - A valve has a first duct and a second duct into which the first duct opens at right angles, thereby defining an intersection that forms a seat for a valve disk that slides in the second duct at right angles to the seat between a closed position and an open position. The valve disk has, facing the seat, a deviation surface of curvilinear profile having a narrow base facing toward the seat and widening away from the seat configured to deflect at right angles to the first duct a gaseous stream originating therefrom. | 10-02-2008 |
| 20130213497 | CONTROL VALVE - The invention relates to a control valve having a valve seat and a valve disk ( | 08-22-2013 |
| 137533110 | Ball valves | 9 |
| 20090038694 | Ball non-return valve - In the valve according to the invention the supporting blind ( | 02-12-2009 |
| 20090145496 | Non-Return Valve With a Ball-Shaped Valve Body - In the valve of this invention, at its outlet there is a blade gate ( | 06-11-2009 |
| 20090320936 | DUAL ACTION LOW HEAD ISOLATION VALUE - The present invention generally relates to a Dual Action, Low Head Isolation Valve is a plumbing fitting that will isolate the interior pipes of a house from the exterior temperatures of summer and winter while allowing the passage of gasses through the system for venting. This valve would be installed at the top of the household plumbing drainage system, or the top vent, in the attic or above the roof. This valve will allow for the system to draw in air and exhaust the septic gasses, or respirate in both directions with very low head or resistance. | 12-31-2009 |
| 20100051117 | FLUID FLOW CONTROL MEMBERS FOR USE WITH VALVES - Fluid flow control members for use with valves are described herein. An example fluid flow control member for use with a valve includes a body having a first seating surface to control a flow of fluid through the valve. The body defines a second seating surface opposite the first seating surface to control a flow of fluid through the valve. Additionally, the body defines an aperture to receive a stem of the valve, and a bore surrounded by the first seating surface to receive at least one of a seal or a sliding member each of which have a first surface to be engaged by a second surface of a spring seat coupled to the stem to control a fluid flow through the valve. | 03-04-2010 |
| 20100269928 | VALVE CAGE FOR A PUMP - A valve cage device is adapted for use with a subsurface pump or the like. The valve cage includes a housing and an insert. The insert includes a cradle, a plurality of angled ribs, and a base. In one embodiment, the insert may also include an extended nose region. A ball and seat may be positioned in the valve cage. During pumping operations, the cradle retains the ball when the ball is unseated, thereby allowing fluid to pass freely through channels in the insert and around the ball. This eliminates violent action of the ball, thereby obviating a need for a hard liner to be included in the valve cage. A port in the cradle allows fluid to pass therethrough when the ball has been released from the cradle. The angular configuration of the ribs provides for a more laminar flow of fluid compared with prior art valve cages, thereby providing improved passage of fluid through the valve cage. The base may include an angled hook or lip that creates a tight seal, thereby preventing fluid from washing by during pumping operations. During pumping operations, when the ball is released from the cradle, it is guided by the insert and falls straight downward onto the seat, allowing for faster seating of the ball, and in turn, reducing pump stroke loss and providing for more efficient pumping. The valve cage may be configured for a traveling valve or standing valve portion of a subsurface pump or the like. | 10-28-2010 |
| 20140026987 | RELIEF VALVE FOR EXTRACTING SUB-SURFACE GAS - A relief valve for extracting sub-surface gas from beneath a geomembrane includes a valve body for permitting gas to flow therethrough and includes an inlet, an outlet, a vertical run communicating with the inlet, and a lateral run communicating with the vertical run and the outlet. A ball valve comprising a ball seat is positioned within the vertical run. A lightweight valve ball positioned within the vertical run. The valve ball is movable therewithin between a lowered position against a ball seat and an elevated position distal therefrom. The valve ball is lightweight enough that minimal upward gas flows within the vertical run cause the valve ball to rise and become unseated from the ball seat such that stoppage of such vertical flows or reverse flows cause the valve ball to drop back to its ball seat and seal against reverse flows through the ball valve. | 01-30-2014 |
| 20140116540 | BACKFLOW CAPABLE BALL CHECK VALVE - A backflow capable ball check valve includes a valve body including a fluid flow passage and a ball seat within the fluid flow passage. A valve ball is within the fluid flow passage and is configured for seating on the ball seat. The valve ball is movable between a normal operation and backflow capable modes. A stem and saddle assembly is coupled with the valve body, and the stem and saddle assembly is configured to cup the valve ball. Movement of the stem and saddle assembly moves the valve ball from the normal operation mode to a backflow capable mode. In the backflow capable mode the stem and saddle assembly positions the valve ball away from the ball seat with the saddle cupping the valve ball in surface to surface contact, for instance according to pivoting at a movable joint. | 05-01-2014 |
| 20170233991 | Floor Drain Gas Stopper | 08-17-2017 |
| 137533150 | Separable seat | 1 |
| 20100206404 | BALL CHECK VALVE - The invention provides an uncomplicated ball check valve whose components can be economically manufactured, assembled and connected and wherein, in accordance with one aspect of the invention, the ball check valve is configured for use as a pressure vessel. In one embodiment of the invention, the ball check valve comprises a housing defining one or more inlet, an outlet and a passageway therebetween. A ball support system is mounted within the housing, wherein one or more balls are supported by the ball support system. The ball support system is configured to allow a ball to close off and open a respective inlet. The housing generally comprises an inlet section which can have one or more inlets, wherein each inlet defines a ball seat sealingly engageable with a ball for sealing the inlet. The housing further comprises a centre section providing adequate space to allow movement of the ball and an outlet section comprising an outlet for transferring the fluid to a subsequent portion of a piping network. The ball support system is configured to guide the movement of each of the one or more balls, wherein the movement of each ball is guided from a first position wherein the ball is proximate to a ball seat located at an inlet and thereby sealing that inlet, to a second position wherein fluid flow through an inlet into the valve is enabled. | 08-19-2010 |
| 137533170 | Guided head | 1 |
| 137533210 | Guide stem | 1 |
| 20150068622 | CHECK VALVE - A check valve is provided for use with variable frequency drives and other applications. In one aspect, the check valve provides a poppet guided by a poppet guide in at least two locations to ensure stability between fully open and fully closed positions. In another aspect, the check valve includes a poppet guide adapted to receive a poppet in a stem receiving channel, the stem receiving channel including guide vanes engaging the poppet and auxiliary channels for self cleaning. The check valve may also include a valve seal. In one embodiment, the valve seal is an o-ring received by a poppet head, based of the poppet guide and valve seat. The valve seat and/or the base may include expansion channels to receive a portion of the valve seat during compression when the check valve is in a closed position. | 03-12-2015 |
