William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8172156 | Thin film based microfluidic devices Disclosed herein are devices comprising at least one flexible seal, at least one flexible complex seal having at least one closed cavity containing a fluid, or a combination thereof. The devices may comprise at least one immobile and inflexible substrate and at leas... | 05/08/2012 |
| 8123143 | Thermostatic valve for connecting an automatic transmission with an oil cooler In a thermostatic valve for connecting an automatic transmission with an oil cooler, wherein the connection between an inlet conduit 12 for oil coming from the transmission and an outlet conduit 13 to the oil cooler is released or blocked by valve slid... | 02/28/2012 |
| 8066197 | Failsafe thermal bypass valve for cooling system A thermal bypass valve for a heat exchanger circuit includes a valve housing forming a valve chamber including a bypass passage and ports for the flow of heat exchange fluid into and out of the valve chamber as well as a bypass port defined by a valve seat. Two axia... | 11/29/2011 |
| 8052065 | Tapered high pressure rotary feed valves A tapered rotary feed valve is manufactured or refurbished for use in feeding materials into a high temperature environment, so as to reduce the time and expense of break-in operation, by shaping the tapered bore of the valve body at ambient temperature to have grea... | 11/08/2011 |
| 8038076 | System and method for dynamic solenoid response adjust control A method is described for controlling a solenoid-operated fluid valve having an output hydraulic pressure that varies in accordance with an input solenoid control current delivered from a drive circuit. A model is provided characterizing the plant dynamics of the so... | 10/18/2011 |
| 7988065 | Coupling having a temperature sensitive valve having shape memory actuator A valve for preventing the flow of fluid when the temperature of the fluid is above a predetermined threshold, the valve including: a body having at least one opening for allowing the fluid to pass when the temperature of the fluid is below the predetermined thresho... | 08/02/2011 |
| 7988064 | Faucet outlet fitting having a temperature sensitive valve having shape memory actuator A valve for preventing the flow of fluid when the temperature of the fluid is above a predetermined threshold, the valve including: a body having at least one opening for allowing the fluid to pass when the temperature of the fluid is below the predetermined thresho... | 08/02/2011 |
| 7984861 | Hydrant apparatus and water discharging method A hydrant apparatus comprises at least an outlet pipe, at least a switch for controlling the water flow, and at least a temperature limiting component. The outlet pipe is used for flowing water out of the hydrant apparatus. The switch, coupled to the outlet pipe, is... | 07/26/2011 |
| 7963455 | Thermostat valve A thermostatted valve used in an internal combustion engine and comprising a housing fitted with at least three ports, namely an engine port to communicate with the engine cooling system, a radiator port to communicate with the radiator, and a bypass port to communi... | 06/21/2011 |
| 7845575 | Temperature-actuated valve assembly A temperature-actuated valve assembly is provided, which includes a valve assembly housing having a main flow passage and a control flow passage. A pneumatically-actuated valve is fluidly coupled to the control flow passage and configured to control fluid flow throu... | 12/07/2010 |
| 7757962 | Thermostatic device and related method A thermostatic device for selectively opening and closing one of more apertures used for controlling the flow of a coolant fluid includes a housing, at least one fixed element and at least one moveable element. The at least one fixed element is fixedly interconnecte... | 07/20/2010 |
| 7726584 | Thermal valve assembly A thermal valve assembly for a transmission is provided. The thermal valve assembly includes a body having a base portion having a plurality of opposing sidewalls extending therefrom. A cover is mounted with respect to the body and operates to at least partially clo... | 06/01/2010 |
| 7721973 | Valve A valve comprising a body and a plug is disclosed. The body has a pair of ports and a tubular structure having a side wall and an open end and defining interiorly a first subchamber communicating with one port. The wall has an opening. The body defines a second subc... | 05/25/2010 |
| 7559485 | Variable orifice valve A variable orifice valve provides a changing orifice dimension based solely upon the temperature or other property of the fluidic medium, such as flow-rate of the fluidic medium passing through the valve, and is actuated via a thermally active wire or flow-rate acti... | 07/14/2009 |
| 7540431 | By-pass valve for heat exchanger A valve that includes a housing defining first and second bores having a central axis, and a peripheral valve seat. An actuator is located in the first bore and has a reciprocating seal disposed for movement along the central axis for engaging the valve seat and clo... | 06/02/2009 |
| 7424978 | Resettable bi-stable thermal valve A temperature sensitive resettable linear actuator includes a linear actuator housing and a support shaft. The support shaft has a first end portion configured for longitudinal movement within the linear actuator housing and a second end portion extending from the l... | 09/16/2008 |
| 7422159 | Thermostat valve unit In connection with a thermostat valve which, together with a housing cover member, constitutes a structural unit, it is provided that a cross arm member is secured on a housing cover by means of a snap-in connection and is provided with flanges extending into a fast... | 09/09/2008 |
| 7407113 | Products and process that act as a safety valve to prevent scalding A thermostatic valve incorporated within a plumbing system for regulating the flow of fluid. The thermostatic valve includes two valve assemblies operatively cooperating to preclude the flow of scalding water. The first valve assembly and second valve assembly respo... | 08/05/2008 |
| 7363939 | Bleed valve A bleed valve (1) for a pipe into which a non-return function is integrated. The bleed valve is preferably designed to be a thermal valve. ... | 04/29/2008 |
| 7356857 | Multiple output shower assembly A multiple output shower assembly is disclosed generally comprising a plurality of conduits in fluid communication with each other and at least three water output devices for discharging water from the assembly. The water output devices are located such that water i... | 04/15/2008 |
| 7347423 | Arrangement in connection with mechanical seal An arrangement in connection with a mechanical seal includes at least two sliding surfaces pressing against each other, which are arranged to seal a gap between a rotating and a non-rotating machining part, and mechanism for providing a sealing fluid flow cooling th... | 03/25/2008 |
| 7328748 | Thermal actuated plunger A downhole plunger for a gas/oil well comprises a valve to regulate fluid flow past the plunger and a thermal actuator to control the valve. The thermal actuator of the disclosed device enables the valve to open and close aperatures without relying on the physical i... | 02/12/2008 |
| 7322392 | Tire pump A tire pump includes a passive air pump which is attachable to a component of a vehicle wheel assembly. The vehicle wheel assembly has a vehicle wheel, a tire valve stem attached to the vehicle wheel, and a tire mounted on the vehicle wheel and containing a gas. The... | 01/29/2008 |
| 7320434 | Method of controlling electronic controlled thermostat An electronically controlled thermostat control method is obtained which makes it possible to eliminate the response delay from the time that the required cooling water temperature is set to the time that the actual cooling water temperature reaches the set water te... | 01/22/2008 |
| 7311264 | Method and device for the process regulation or control of thermal load changes of an obstruction-curved and/or thick-walled component through which a medium flows in a thermal system The novel method and device provide for process control—closed-loop control or open-loop control—for a thermal system with an obstruction-curved and/or thick-walled component through which a medium flows. The wall temperatures of the component are detected, the ... | 12/25/2007 |
| 7309022 | Substance shutoff device and fuel cell There is provided a substance shutoff device for shutting down the communication of at least one of an inflammable substance and an oxidizer when the inflammable substance and the oxidizer are brought into contact with each other to thereby prevent further contact b... | 12/18/2007 |
| 7299994 | Oil cooler bypass valve A valve actuating mechanism for a transmission/engine fluid cooler bypass valve of the type in which a responsive element expands to urge a valve member against a valve seat and thereby causes transmission fluid to flow through an oil fluid cooler. A cast valve hous... | 11/27/2007 |
| 7275697 | Thermostatic valve for a cooling circuit A valve comprises a housing, a movable check mechanism that is suitable for regulating passage of a fluid between an inlet orifice and an outlet orifice of the housing, a stationary seat for receiving the check mechanism, and a thermostatic element that is provided ... | 10/02/2007 |
| 7240852 | Drinking fountain with automatic stagnant water flushing system Drinking fountains can go through extended periods of disuse, allowing for the growth of bacteria and other substances in the stagnant water in the supply passages. Water dispensed from such the drinking fountain spout can come into contact with or be consumed by a ... | 07/10/2007 |
| 7240853 | Emergency shower with automatic stagnant water flushing system Emergency showers can go through extended periods of disuse, allowing for the growth of bacteria and other substances in the stagnant water in the supply passages. Water dispensed from such the shower head can come into contact with or be consumed by a user. Embodim... | 07/10/2007 |
| 7240854 | Eyewash with automatic stagnant water flushing system Eyewash stations can go through extended periods of disuse, allowing for the growth of bacteria and other substances in the stagnant water in the supply passages. Water dispensed from such the eyewash station can come into contact with or be consumed by a user. Embo... | 07/10/2007 |
| 7217357 | Oil filter for engines, transmissions or automatic transmissions Oil filter for engines, transmissions or automatic transmissions, said oil filter being integrated in an oil pan, at least one bypass valve being arranged on the oil filter, the bypass valve containing a spring whose spring resistance increases with increasing tempe... | 05/15/2007 |
| 7210669 | Deformable fastener A deformable fastener is provided. The fastener includes a first member having a cavity and a second member sized to be rotatably attached within the cavity. The fastener further includes a protrusion disposed on either the first or second member for locking engagem... | 05/01/2007 |
| 7203418 | Electric water heater with hot water outlet dip tube An electric water heater including a water container; an element associated with the water container to heat water in the water container; a cold water inlet associated with the water container; a hot water outlet associated with the water container; and a dip tube ... | 04/10/2007 |
| 7178739 | Automatic stagnant water flushing system There are a number of water dispensing systems in the art that can go through periods of disuse, allowing for the growth of bacteria and other substances. Water dispensed from such devices can come into contact with or be consumed by a user. Embodiments of the inven... | 02/20/2007 |
| 7175101 | Thermostat mounting structure A thermostat mounting structure capable of reliably positioning an embedded thermostat and ensuring high sealability. A coolant channel is formed in a casing. An embedding hole is formed in the casing across the coolant channel. A thermostat includes a cylindrical v... | 02/13/2007 |
| 7165513 | Multiway valve for a vehicle cooling/heating system A multiway valve has a valve housing arrangement (2, 34), in which a valve chamber (8) is formed, at least three main valve connections (3, 4, 5, 6) leading to the valve chamber (8), and a main valve member. The main valve member (1 | 01/23/2007 |
| 7140551 | HVAC controller An HVAC controller with a simplified and/or lower cost user interface. In one illustrative embodiment, the HVAC controller includes two switches, a movable member, and a plurality of detents. The detents are configured to cause the two switches to be switched in a s... | 11/28/2006 |
| 7124777 | Reversing valve with flowsplitter Provided is a reversing valve for reversing flow in a refrigeration system. The reversing valve includes a valve body having first, second, third, and fourth ports disposed into the valve body. A valve member inside the valve body can be selectively moved between a ... | 10/24/2006 |
| 7114661 | Thermally actuated fluid shuttle valve A thermally actuated fluid shuttle valve that is a three-way direction control valve that shifts when fluid passing through said valve reaches a preset temperature. The control valve, including three ports, an internal shiftable spool, and a thermal element, wherein... | 10/03/2006 |