Abstract: A system incorporating an actuator connected to a polarity-insensitive two-wire communications bus. The actuator may have an electromechanical mover, a processor connected to the electromechanical mover, and a potentiometer, having a number of address settings, connected to the processor. A setting of the number of settings of the potentiometer may be a selection of an address for the actuator on the communications bus. There may be additional actuators and a controller connected to the communications bus. Each actuator may have an address which is different from an address of the other actuators connected to the communications bus. If an actuator is substituted with a replacement actuator, then a setting of a plurality of settings on a potentiometer of the replacement actuator may be selected to obtain an address that is the same as the address of the actuator which is substituted.

Abstract: A flexible conduit fitting system includes a housing that defines at least part of a flexible conduit fitting, and a resilient clip supported by the housing. The flexible conduit fitting may include an aperture for receiving an end of a flexible wiring conduit. The resilient clip may have an engagement portion that extends into the aperture of the flexible conduit fitting to engage the generally corrugated outer structure of the flexible wiring conduit. The housing may be configured to support the resilient clip in a manner that allows the resilient clip to flex in a direction of movement of the flexible wiring conduit when the flexible wiring conduit is being inserted into the aperture and past the engagement portion, but to not substantially flex in the direction of movement of the flexible wiring conduit when attempting to withdraw the flexible wiring conduit from the aperture.

Abstract: A valve actuator assembly includes a rotatable member carrying an extendable indicator arm. The extendable indicator arm may be moveable between a retracted position and an extended position. When the extendable indicator arm is in the extended position, the extendable indicator arm may extend laterally past side walls of the actuator housing of the valve actuator assembly, such that the extendable indicator arm is visible from a location below the valve actuator assembly.

Abstract: A system and method for guiding a motor into alignment with a transmission during assembly. The system may allow the motor to be placed into engagement with a motor mount in a first position, wherein in the first position, the position of the motor is constrained by guide structures such that the gear teeth of the drive gear and the gear teeth of a driven gear are not fully intermeshed, and a rotation axis of the drive gear is not parallel to a rotation axis of the driven gear. The motor may then be manipulated in the motor mount while constrained by the guide structures along a motion path until the gear teeth of the drive gear and the gear teeth of the driven gear are more fully intermeshed, and the rotation axis of the drive gear is substantially parallel to the rotation axis of the driven gear.

Abstract: In one example, a method for producing a cutting device matrix includes mixing a plurality of constituent matrix materials using a resonant acoustic mixing process until the constituent matrix materials are substantially homogeneously distributed throughout the matrix.

Abstract: A valve actuator assembly may include a valve having a mounting adapter and an actuator housing configured to releasably and non-rotatably attach to the mounting adapter without tools. The actuator housing may be attached at any one of a plurality of discrete radial orientations. In some instances, the actuator housing may include a spring retainer clip configured to engage the mounting adapter, and a button element configured to engage the spring retainer clip to release the spring retainer clip from the mounting adapter.

Abstract: A valve actuator assembly includes a rotatable member carrying an extendable indicator arm. The extendable indicator arm may be moveable between a retracted position and an extended position. When the extendable indicator arm is in the extended position, the extendable indicator arm may extend laterally past side walls of the actuator housing of the valve actuator assembly, such that the extendable indicator arm is visible from a location below the valve actuator assembly.

Abstract: A system incorporating an actuator connected to a polarity-insensitive two-wire communications bus. The actuator may have an electromechanical mover, a processor connected to the electromechanical mover, and a potentiometer, having a number of address settings, connected to the processor. A setting of the number of settings of the potentiometer may be a selection of an address for the actuator on the communications bus. There may be additional actuators and a controller connected to the communications bus. Each actuator may have an address which is different from an address of the other actuators connected to the communications bus. If an actuator is substituted with a replacement actuator, then a setting of a plurality of settings on a potentiometer of the replacement actuator may be selected to obtain an address that is the same as the address of the actuator which is substituted.

Abstract: A system incorporating an actuator. The actuator may have a motor unit with motor controller connected to it. A processor may be connected to the motor controller. A coupling for a shaft connection may be attached to an output of the motor unit. The processor may incorporate a diagnostics program. The processor may be connected to a polarity-insensitive two-wire communications bus. Diagnostic results of the diagnostics program may be communicated from the processor over the communications bus to a system controller. If the diagnostic results communicated from the processor over the communications bus to the system controller indicate an insufficiency of the actuator, then an alarm identifying the insufficiency may be communicated over the communications bus to the system controller.

Abstract: In one example, a method for producing a cutting device matrix includes mixing a plurality of constituent matrix materials using a resonant acoustic mixing process until the constituent matrix materials are substantially homogeneously distributed throughout the matrix.

Abstract: A valve actuator assembly may include a valve having a mounting adapter and an actuator housing configured to releasably and non-rotatably attach to the mounting adapter without tools. The actuator housing may be attached at any one of a plurality of discrete radial orientations. In some instances, the actuator housing may include a spring retainer clip configured to engage the mounting adapter, and a button element configured to engage the spring retainer clip to release the spring retainer slip from the mounting adapter.

Abstract: An HVAC actuator, such as a spring return actuator, may adjust the maximum output torque of the motor with the varying spring return force of the HVAC actuator as the HVAC actuator moves through its range of motion. In some cases, this may provide a more constant force at the output of the HVAC actuator and reduce the force that is applied through the motor, drive train and/or the HVAC component when an end stop is reached. Also, an HVAC actuator is disclosed that can be configured to discover and store the location of one or more end stop(s), and to slow the speed of the motor down before the end stop(s) is reached. This may reduce the force that is applied through the motor, drive train and/or the HVAC component when an end stop is reached.

Abstract: An HVAC actuator configured to function in cold environments by providing a supplemental current component to an HVAC actuator in order to generate supplemental heat to warm the HVAC actuator.

Abstract: A method includes, during compilation of a portion of source code at a compiler, initiating token resolution with respect to a token included in the portion of source code. A static context and a dynamic context of the compiler are queried to identify one or more lookup results of the token. A particular lookup result is selected to resolve the token based on one or more semantic rules of the compiler. The particular lookup result is selected independently of whether the particular lookup result is sourced from the static context or from the dynamic context. The method includes resolving the token based on the selected particular lookup result.

Abstract: A computer-implemented method includes compiling one or more segments of code during run-time of a process executing at one or more processors of a computer system. The compilation produces a high-level intermediate representation of the one or more segments of the code. The high-level intermediate representation is modifiable by the process, without executing the high-level intermediate representation, to generate a modified high-level intermediate representation that is executable by the process.

Abstract: An HVAC actuator configured to function in cold environments by providing a supplemental current component to an HVAC actuator in order to generate supplemental heat to warm the HVAC actuator.

Abstract: An HVAC actuator, such as a spring return actuator, may adjust the maximum output torque of the motor with the varying spring return force of the HVAC actuator as the HVAC actuator moves through its range of motion. In some cases, this may provide a more constant force at the output of the HVAC actuator and reduce the force that is applied through the motor, drive train and/or the HVAC component when an end stop is reached. Also, an HVAC actuator is disclosed that can be configured to discover and store the location of one or more end stop(s), and to slow the speed of the motor down before the end stop(s) is reached. This may reduce the force that is applied through the motor, drive train and/or the HVAC component when an end stop is reached.

Abstract: An intake manifold mixes and supplies air and exhaust recirculation gas (EGR) to an internal combustion engine. The manifold is a casting and includes an air intake port formed on one side thereof, an intake chamber receiving intake air from the intake port, an outlet plenum communicated with the engine, an EGR inlet port, and first and second EGR valve chambers. A first EGR passage communicates the EGR inlet port with the first EGR valve chamber. A second EGR passage communicates the EGR inlet port with the second EGR valve chamber. A central EGR outlet passage communicates an end of each EGR valve chamber with a central portion of the plenum. First and second EGR outlet chambers receive EGR from the first and second valve chambers, and have outlet ports which communicate with first and second ends of the plenum. An EGR supply conduit and EGR valves can be installed on either side of the manifold so that the manifold can be oriented the air intake projecting upwardly or downwardly.

Abstract: An intake manifold mixes and supplies air and exhaust recirculation gas (EGR) to an internal combustion engine. The manifold is a casting and includes an air intake port, an intake chamber receiving intake air from the intake port, an outlet plenum communicated with the engine, an EGR inlet port, and first and second EGR valve chambers. A first EGR passage communicates the EGR inlet port with the first EGR valve chamber. A second EGR passage communicates the EGR inlet port with the second EGR valve chamber. A central EGR outlet passage communicates an end of each EGR valve chamber with a central portion of the plenum. First and second EGR outlet chambers receive EGR from the first and second valve chambers, and have outlet ports which communicate with first and second ends of the plenum. A wall separates the intake chamber from the central EGR outlet passage chamber and from one of the EGR inlet passages.