A hand operated tool for binding a load. The tool including a hollow tube with interior left hand and right hand threads at opposing ends. Opposing rods with exterior threads on one end and a releasable connection device on the other end that is screwed into each end of the tube. A gear rigidly mounted and encircling the tube allowing a pivotly attached ratcheting U-pawl to engage the gear teeth, the U-pawl attached to and carried by a handle assembly mounted on each side of the gear, the handle protruding perpendicular from the tube. The handle turning the tube in a first rotational direction drawing the rods closer together tightening the bind, the handle turning the tube in a second rotational direction moving the rods farther apart loosening the bind, the rods remaining stationary in rotation during rotation of the tube. A blocking device may be installed to prevent the U-pawl from pivoting into a position to turn the tube in the second rotational direction, that would loosen the bind on the load, the blocking device allowing normal ratcheting and turning of the tube in the first rotational direction tightening the bind on the load. A recessed-pawl partially pivoting independently of the U-pawl and engaging with the gear to prevent the tube from turning in the second-rotational-direction that would loosen the bind on the load when the U-pawl is in a neutral position whereby the U-pawl is not engaged with the gear.

A controllable one-way clutch assembly having an actuator module equipped with a solenoid actuator, an active strut moveable in response to energization of the solenoid actuator from a released position to a locked position, a strut spring biasing the active strut toward its released position, and an indirect strut actuation arrangement between the solenoid actuator and the active strut. The indirect strut actuation arrangement includes an intermediate actuation component having a first lug establishing a coupling interface with a translatable plunger of the solenoid actuator and a second lug establishing an engagement interface with the active strut.

A spring component for a ratcheting mechanism, such as a ratchet wrench. The spring component is shaped to be retained in a recess without any special machining. For example, the spring component can be retained at three abutment points. A leaf of the spring component can abut a pawl, and a base portion opposite the leaf can abut the drive gear. Support arms can abut the sidewall of the recess to retain the spring component within the recess without the need for special machining or tooling.

Disclosed are techniques for managing the application of a force by a drive mechanism in a drug delivery device as well as devices for implementing the disclosed techniques. One or more driving arms may be operable to drive a respective ratchet wheel and one or more sensor contacts may be positioned to determine when a respective driving arm is to be controlled to no longer drive the respective ratchet wheel thereby saving electrical power. The disclosed techniques and devices may be incorporated in a drug delivery device, such as those carried by a person or affixed to the skin of a person.

An actuation linkage assembly may include a first lever arm connected to one end of a shaft, a second lever arm connected at one end to another end of the shaft, a transition linkage connected to the other end of the second lever arm, and a bracket connected to the transition linkage. The transition linkage is configured to connect the bracket on a driver ring and to the shaft to transfer rotational motion about the axis of the shaft, from a linear motion received by an actuator, to a linear motion through the bracket causing rotational motion of the driver ring. The actuation linkage assembly is configured with high mechanical advantage. The actuation linkage assembly can be part of a movable inter-stage vane guide assembly in a compressor such as for example a centrifugal compressor, which may be part of a chiller such as in a HVAC system.

A spring component for a ratcheting mechanism, such as a ratchet wrench. The spring component is shaped to be retained in a recess without any special machining. For example, the spring component can be retained at three abutment points. A leaf of the spring component can abut a pawl, and a base portion opposite the leaf can abut the drive gear. Support arms can abut the sidewall of the recess to retain the spring component within the recess without the need for special machining or tooling.

A rod rotator has a crankshaft with non-aligned crank journals, a first actuating pawl attached to the first crank journal and a second actuating pawl attached to the second crank journal, and a ratchet wheel connected to a polished rod. The first actuating pawl pushes on the ratchet wheel to rotate the ratchet wheel while the second actuating pawl pulls on the ratchet wheel to rotate the ratchet wheel at the same time.

A hand operated tool for binding a load. The tool including a hollow tube with interior left hand and right hand threads at opposing ends. Opposing rods with exterior threads on one end and a releasable connection device on the other end that is screwed into each end of the tube. A gear rigidly mounted and encircling the tube allowing a pivotly attached ratcheting U-pawl to engage the gear teeth, the U-pawl attached to and carried by a handle assembly mounted on each side of the gear, the handle protruding perpendicular from the tube. The handle turning the tube in a first rotational direction drawing the rods closer together tightening the bind, the handle turning the tube in a second rotational direction moving the rods farther apart loosening the bind, the rods remaining stationary in rotation during rotation of the tube. A blocking device may be installed to prevent the U-pawl from pivoting into a position to turn the tube in the second rotational direction, that would loosen the bind on the load, the blocking device allowing normal ratcheting and turning of the tube in the first rotational direction tightening the bind on the load. A recessed-pawl partially pivoting independently of the U-pawl and engaging with the gear to prevent the tube from turning in the second-rotational-direction that would loosen the bind on the load when the U-pawl is in a neutral position whereby the U-pawl is not engaged with the gear. In addition, a tension-detecting-device suitable to detect or measure the tension on the ratchet load binder rods and also monitor and communicate the tension to the operator is also provided.