4262 results about "Valve stem" patented technology

An aerosol dispensing inhaler training device for determining whether a user is properly operating an aerosol dispensing device. The training device includes an aerosol dispensing device having a container with a valve stem extending longitudinally therefrom and movable between a closed position and an open position. The container dispenses a portion of the contents within the container when the valve stem is moved to the open position. The aerosol dispensing device includes a housing adapted to support the container reciprocally moveable within the housing along a longitudinal axis from a first position, the housing comprising a well adapted to receive the valve stem and an exhaust port comprising one end in fluid communication with the well and a second end in fluid communication with the ambient atmosphere, wherein the portion of the contents within the container is dispensed from the first end of the exhaust port to the second end of the exhaust port when the housing moves to an actuation position where the valve stem is actuated so that a portion of the contents within the container is dispensed through the second end of the exhaust port when the valve stem is moved to the open position. An actuation sensor generates a signal that indicates when the housing is moved to the actuation position and the valve stem is actuated. A shake sensor determines whether the contents within the container have been properly agitated for consumption by a user.

A marking paint applicator for a portable electronic locator that locates buried cables and pipes via electromagnetic emissions includes an elongated support structure and a manually moveable trigger mechanism mounted adjacent an upper end of the support structure. At least one bracket assembly is provided for removably connecting the support structure to an antenna mast of the portable locator so that the trigger mechanism will be adjacent a handle of the locator and the trigger mechanism can be squeezed by a finger of an operator's hand while grasping the handle. A receptacle is mounted to the support structure for carrying an inverted aerosol paint can and positioning a valve stem of the aerosol paint can for spraying paint onto the ground to mark the location of a buried cable or pipe. An actuating mechanism is capable of selectively deflecting the valve stem to cause the aerosol paint can to spray paint onto the ground to mark the location of a buried cable or pipe. A linkage connects the trigger mechanism to the actuating mechanism for deflecting the valve stem when the trigger mechanism is squeezed.

A check valve which is positioned in the vacuum air line of an internal combustion engine. The check valve includes a single-piece valve body having an outlet port and two or more inlet ports, with one outlet port located substantially in line with the inlet port and connected by a venturi tube. The second inlet port is separated from the main air flow line by the valve stem and a diaphragm which allows communication there between and prevents back pressure. The second inlet port communicates with the outlet port through the valve stem and a second venturi tube which provides a vacuum boost to a device, usually vehicle brakes, connected to the inlet. The use of seal diaphragms having a non-constant radius allows for faster recovery time for replenishment than prior art devices.

A subsea actuator and method is disclosed that includes a removable monolithic cap/hydraulic chamber that seals the actuator housing top with seals placed around the monolithic cap, defines a straight hydraulic line and port for control line hydraulic fluid, and provides for fasteners to secure the top of the subsea actuator. The monolithic cap/hydraulic chamber is so limited in metal and machine time that it can be a throw-away maintenance item. A preferably cup-shaped spring lifter is provided in telescoping relationship to the hydraulic chamber. Several short hydraulic fluid passageways are provided in the bottom cup portion of the spring lifter to permit assist hydraulic control fluid into the hydraulic chamber below the piston. The driving stem provides a removable connection to the hydraulic piston from the top of the actuator housing and a quick disconnect permits disconnection of the driving stem from the valve stem. The high tension spring does not need to be removed to perform maintenance, and all wear items and seals are readily accessible. Change or replacement of the stem packing is made from the top of the bonnet to avoid dissasembling the bonnet to valve body connection. The spring chamber within the actuator housing may be increased in size to accommodate a larger spring as necessary for fail-safe operation without changing the size of the hydraulic chamber. All sliding components ride on wear rings to increase the lifetime of reliable subsea operation. The moving components are mounted in a compact, concentric configuration.

A valvetrain system mechanization for an internal combustion engine using compression ignition, including homogeneous charge compression ignition, having two intake and one or more exhaust valves per cylinder. The valves are operated by dual overhead camshafts having two-step cams. The intake and exhaust camshafts are provided with phasers for varying the opening and closing of the intake and exhaust valves. A two-step roller finger follower is disposed for each valve between the cam lobes and the valve stem. The two sets of intake and exhaust valves are controlled by separate oil control valves. Swirl of gases may be introduced by mismatching the lifts of the valves. The valve opening times, closing times, lifts, fuel injection, compression ratio, and exhaust gas recirculation may be varied to optimize combustion conditions for a range of engine operating modes.

The disclosure provides a tire pressure sensor assembly that includes a battery and a printed circuit board (PCB) configured with electronics to measure tire pressure and to transmit an electromagnetic signal related to the measured tire pressure. The PCB and battery are contained in a housing that allows the PCB and the battery to be angularly oriented with respect to each other. Such orientation permits the sensor to conform to the curved surface of the rim. An embodiment of the disclosed tire pressure sensor assembly is adapted to fasten to a valve stem via a metal terminal. The attachment configuration permits the valve stem assembly to deform as the valve stem is installed in a rim and also allows the valve stem to function as a portion of the antenna structure to facilitate transmitting the RF signal to a receiver.

The present disclosure provides an improved system and method that includes a food dispensing machine for dispensing a base food product through a dispensing valve and adding ingredients and other additives, such as flavors and the like, to the base food product when the product is dispensed from a product chamber. Multiple conduits coupled between additive sources and the dispensing valve can be selectively used to flow the various additives to the dispensing valve when the product is dispensed. The system and method may assist in reducing the number of product chambers generally required to deliver multiple products, allow various combinations of products, and even more combinations for those units having multiple product chambers with multiple dispensing valves. The disclosure further provides a unique valve that includes a movable nozzle assembly that unseats and seats on a fixed valve stem with attendant advantages in the above described dispensing valve.

A tire pressure gauge for attachment to a valve stem includes a wall defining a chamber having a first port adapted to sealingly engage a valve stem, a probe being mounted in the first port so as to open a valve of a valve stem sealingly engaged by the first port, a pressure sensor in the chamber, a memory, a display physically supported on the device, a processor being operatively coupled to said display, pressure sensor and memory; and code being stored in the memory and operable by the processor to: retrieve at least one value indicative of a first threshold tire pressure from the memory, determine a pressure sensed by the pressure sensor, and, cause the display to present information indicative of a relative value of the sensed value to the first threshold tire pressure.

A tire pressure monitoring apparatus (10) includes a pressure transducer (14) and a valve stem (12). A support bracket (50) connects the valve stem (12) to the pressure transducer (14) and facilitates pivotal movement between the valve stem and the pressure transducer. The support bracket (50) includes a valve stem biasing member (80) that exerts a spring bias on the valve stem (12) to help maintain a selected angular position of the valve stem relative to the pressure transducer (14).

A valve assembly includes a valve body and a valve actuator which is releasably engageable with the valve body. The valve body has an internal cavity within which a valve member is located, and a valve stem is interconnected with the valve body and is accessible from the exterior of the valve body. The valve body further includes a mounting member, and the valve actuator is selectively engageable with the mounting member. The valve actuator includes a latch member which is movable between a latching position and a release position. The mounting member includes a slot, and the latch member has a blocking member that is received within the slot when the latch member is in its latching position, to prevent removal of the valve actuator from the valve body. The latch member is manually movable to a release position, in which the blocking member is removed from the slot in the mounting member to enable the valve actuator to be disengaged from the mounting member. The valve actuator includes a motor which drives a gear assembly for selectively imparting rotation to the valve member. The motor is secured to a mounting member such as a mounting plate. The mounting plate includes one or more walls that are exposed to the exterior of the valve actuator, such that heat from operation of the motor is conducted via the mounting plate away from the motor to the one or more walls for dissipation into the surrounding environment.

A subsea actuator and method is disclosed that includes all moving components mounted in a compact, concentric configuration. The subsea actuator is highly reliable and will operate at depth even with zero valve body cavity pressure. A preferably cup-shaped spring pusher is provided in telescoping relationship to the hydraulic chamber. A piston position indicator is provided which is connected externally to the hydraulic piston cylinder to avoid the possibility of hydraulic leaks due to the piston indicator. A manual override may be provided with a manual override indicator. The manual override indicator has a shorter travel length than the manual override operating stem to thereby reduce the overall length of the manual override assembly. The driving stem provides a removable connection to the hydraulic piston from the top of the actuator housing and a quick disconnect permits disconnection of the driving stem from the valve stem. In a preferred embodiment, upper and lower t-slot connections are utilized in the driving stem assembly. In a preferred embodiment, two back seat valves are removably secured to the driving stem to engage respective seats and provide additional sealing around the driving stem so as to prevent leakage between the valve chamber and actuator housing chamber. The high tension spring does not need to be removed to perform maintenance, and all wear items and seals are readily accessible. Change or replacement of the stem packing is made from the top of the bonnet to avoid dissasembling the bonnet to valve body connection. Pre-load bolts are used to adjustably preload the tension in the return spring. The height/weight of the actuator is significantly reduced as compared to prior art subsea valve actuators.

This invention is a method and system for reporting the under or over pressure conditions on motor vehicle tires. The device is comprised of air hoses, pressure sensors, radio transmitters with antennas, a radio receiver, a display unit with lights, batteries, lights, and associated electrical components. An assembly mounted on the front of each wheel, over or in place of the hubcap, consists of an air pressure monitor utilizing air pressure inflation valves, a radio transmitter with battery cell, a radio transmitter antenna, and high/low indicator lights. Air hoses attached to each tire's valve stem are connected to the air pressure inflation valves of the air pressure monitors. The wheel mounted transmitters are powered by a low voltage battery that is normally powered off until activated by the changes of the pre-set air pressure of the tire air pressure monitoring sensor.

This invention provides for a valve system for use in fire suppression systems that provides pressure relief, pressure testing, and drain/test fluid flow capability. The valve system consists of a valve body with an attached riser. Adjustably attached to the riser is a rotary handle for raising and lowering a spring loaded valve stem. A blocking plug is provided for attachment to the handle which operates to block the movement of the valve stem during pressure testing of the fire suppression system. A tension disk is adjustably attached to the inside of the riser to manually adjust the spring tension. In addition, a means is provided for preventing system fluid from contacting the spring.