Abstract: A one hand controller for zero turn mowers includes a left steering controller and a right steering controller. The left steering controller mounts to a left steering lever of the mower and includes an angle plate, a linear track, and at least one left-steering-lever fastener. The right steering controller mounts to a right steering lever of the mower and includes a plate body, handle, a latch, and a right-steering-lever fastener. The linear track traverses along a top plate of the angle plate. The left-steering-lever fastener is connected to a bottom plate of the angle plate. The latch is connected to the plate body. The right-steering-lever fastener is rotatably mounted to the plate body. The handle is mounted to the plate body and oppositely positioned to the latch and the right-steering-lever fastener. The latch is slidably engaged within the linear track thus allowing the handle to operate the mower.

Abstract: A doctor blade head for coating a transfer roller includes a semi-cylindrical cavity to enable streamline fluid flow therethrough, and check plates at the inlet and outlet openings for permitting unidirectional flow into the inlet opening from said pump and out of the outlet opening toward the pump. An hydraulic accumulator acts as a fluid pressure and fluid velocity balancing device, and includes a rolling diaphragm piston moving in a cylinder that is connected to the inlet fluid path, with a spring impinging on the piston to absorb pressure surges and compensate pressure dropoffs.

Abstract: A doctor blade head for coating a transfer roller includes a semi-cylindrical cavity to enable streamline fluid flow therethrough, and check plates at the inlet and outlet openings for permitting unidirectional flow into the inlet opening from said pump and out of the outlet opening toward the pump. An hydraulic accumulator acts as a fluid pressure and fluid velocity balancing device, and includes a rolling diaphragm piston moving in a cylinder that is connected to the inlet fluid path, with a spring impinging on the piston to absorb pressure surges and compensate pressure dropoffs.

Abstract: A headroom compensation circuit for a voltage converter for ensuring that there is adequate headroom voltage to enable accurate operation of the current sense amplifier sensing the output current of the converter, the headroom compensation circuit comprising an error amplifier for comparing an output voltage of the converter to a reference voltage to set the converter output voltage; and a circuit for providing a bias current to an input of the error amplifier when a supply voltage to the current sense amplifier within a predefined threshold of the converter output voltage to cause the error amplifier to reduce the converter output voltage thereby to increase the headroom voltage for the current sense amplifier, said headroom voltage being defined as a voltage between the supply voltage to the current sense amplifier and said converter output voltage.

Abstract: A supply system for a chambered doctor blade assembly makes possible the sequential use of water-based and non-water-based coating materials through automated functions programmed in a PLC that controls the system. A pair of pneumatically driven diaphragm pumps serve as supply pump and return pump between the doctor blade chamber and a coating reservoir A PLC controls the pulse rate of pneumatic pressure to the pumps to control the rate of flow of the coating material into, and out of the doctor blade chamber. An ultrasonic sensor mounted detects the liquid level in the trough collection area. The PLC is programmed to modify the pulse rate of the supply pump and return pump to maintain the liquid level in the trough collection area above the drain thereof and below the maximum tolerance.

Abstract: A supply system for a chambered doctor blade assembly makes possible the sequential use of water-based and non-water-based liquid inks through automated functions programmed in a PLC that controls the system. A pair of pneumatically driven diaphragm pumps serve as supply pump and return pump between the doctor blade chamber and an ink reservoir A PLC controls the pulse rate of pneumatic pressure to the pumps to control the rate of flow of the liquid into, and out of the doctor blade chamber. A capacitive sensor detects a high liquid level in the ink reservoir. The PLC is programmed to modify the pulse rate of the supply pump and return pump to maintain the liquid level in the reservoir above the drain thereof and below the maximum level.

Abstract: A multi-phase buck converter comprising a plurality of output switch arrangements each comprising a high side switch and a low side switch connected in series across a DC voltage and having a common connection coupled through a respective output inductor to a converter output node at which a converter output voltage is provided; a plurality of circuit arrangements providing pulse width modulated control signals to the high side and low side switches of each output switch arrangement for regulating the converter output voltage; a control arrangement providing a timing signal for controlling the start of conduction times of the high side and low side switches of each output switch arrangement and for providing an error signal related to a difference between the converter output voltage and a reference signal; a current sense arrangement coupled to each output inductor for providing a phase current signal related to the phase current provided by the respective output switch arrangement through the respective out

Abstract: A coupling device is provided for receiving and securing a ball, the ball being attached to the structure to be coupled, including a tow vehicle in the case of a trailer hitch application. Various embodiments of the device for both tongue and “goose neck” trailer hitch applications are included, which provide for simple and effective latching and unlatching, including operation from the perimeter of the vehicle. Hands free latching is provided for all coupling embodiments. A pivoting ball support with one or more recessed faces is rotated and displaced as the ball enters the device, and is returned to a position whereby the ball is prevented from exiting the device. Various provisions are made for retaining the pivoting ball support in this position after such latching has occurred. Provisions for unlatching include various handles and hand pushed structure. Vertical adaptations are provided for use on gates and the like.

Abstract: A direct duty cycle current sharing controller (42) and a method for controlling the output current of parallel coupled voltage regulator. A current sense amplifier (58) is provided to amplify the output voltage of a current sensor of a voltage regulator. A share bus amplifier (64) is provided to drive the share bus (SHARE) to a voltage representing the highest voltage regulator current of parallel coupled voltage regulators. A share adjust amplifier (68) provides the error voltage directly to the control terminal of a pulse width modulated (PWM) comparator (52). The share adjust amplifier overrides any feedback voltage currently being provided by the PWM controller and takes direct control over the duty cycle of the drive signal. Direct duty cycle current share control is provided under all modes of operation, even during modes where the voltage regulator is operating out of regulation, such as during soft start.

Abstract: A coupling device is provided for receiving and securing a ball, the ball being attached to the structure to be coupled, such as a tow vehicle in the case of a trailer hitch application. Various embodiments of the device for both tongue and “goose neck” trailer hitch applications are included, which provide for simple and effective latching and unlatching. Hands free latching is provided for all coupling embodiments. A pivoting ball support is rotated and displaced as the ball enters the device, and is returned to a position whereby the ball is prevented from exiting the device. Various provisions are made for retaining the pivoting ball support in this position after such latching has occurred. Provisions for unlatching include various handles and hand pushed structure.

Abstract: A coupling device is provided for receiving and securing a ball, the ball being attached to the structure to be coupled, such as a tow vehicle in the case of a trailer hitch application. Various embodiments of the device for both tongue and “goose neck” trailer hitch applications are included, which provide for simple and effective latching and unlatching. Hands free latching is provided for all coupling embodiments. A pivoting ball support is rotated and displaced as the ball enters the device, and is returned to a position whereby the ball is prevented from exiting the device. Various provisions are made for retaining the pivoting ball support in this position after such latching has occurred. Provisions for unlatching include various handles and hand pushed structure.

Abstract: A coupling device is provided for receiving and securing a ball, the ball being attached to the structure to be coupled, such as a tow vehicle in the case of a trailer hitch application. Various embodiments of the device for both tongue and “goose neck” trailer hitch applications are included, which provide for simple and effective latching and unlatching. Hands free latching is provided for all coupling embodiments. A pivoting ball support is rotated and displaced as the ball enters the device, and is returned to a position whereby the ball is prevented from exiting the device. Various provisions are made for retaining the pivoting ball support in this position after such latching has occurred. Provisions for unlatching include various handles and hand pushed structure.

Abstract: A coupling device is provided for receiving and securing a ball, the ball being attached to the structure to be coupled, including a tow vehicle in the case of a trailer hitch application. Various embodiments of the device for both tongue and “goose neck” trailer hitch applications are included, which provide for simple and effective latching and unlatching, including operation from the perimeter of the vehicle. Hands free latching is provided for all coupling embodiments. A pivoting ball support with one or more recessed faces is rotated and displaced as the ball enters the device, and is returned to a position whereby the ball is prevented from exiting the device. Various provisions are made for retaining the pivoting ball support in this position after such latching has occurred. Provisions for unlatching include various handles and hand pushed structure. Vertical adaptations are provided for use on gates and the like.

Abstract: A coupling device is provided for receiving and securing a ball, the ball being attached to the structure to be coupled, including a tow vehicle in the case of a trailer hitch application. Various embodiments of the device for both tongue and “goose neck” trailer hitch applications are included, which provide for simple and effective latching and unlatching, including operation from the perimeter of the vehicle. Hands free latching is provided for all coupling embodiments. A pivoting ball support with one or more recessed faces is rotated and displaced as the ball enters the device, and is returned to a position whereby the ball is prevented from exiting the device. Various provisions are made for retaining the pivoting ball support in this position after such latching has occurred. Provisions for unlatching include various handles and hand pushed structure. Vertical adaptations are provided for use on gates and the like.

Abstract: A coupling device is provided for receiving and securing a ball, the ball being attached to the structure to be coupled, such as a tow vehicle in the case of a trailer hitch application. Various embodiments of the device for both tongue and “goose neck” trailer hitch applications are included, which provide for simple and effective latching and unlatching. Hands free latching is provided for all coupling embodiments. A pivoting ball support is rotated and displaced as the ball enters the device, and is returned to a position whereby the ball is prevented from exiting the device. Various provisions are made for retaining the pivoting ball support in this position after such latching has occurred. Provisions for unlatching include various handles and hand pushed structure.