Abstract: A selector lever that comprises a shaft rotatably attached to a pivot and arranged between two detent plates, each of the detent plates having a plurality of slots arranged for receiving a detent pin located on the shaft. Each of the plurality of slots on each of the two detent plates is defined by a radial depth. One or more of the plurality of slots is a failure detection slot having an extended radial depth. When one of the detent pins has failed, the opposing detent pin is allowed to travel into the extended radial depth when placed in the failure detection slot. This action reveals a failure indicator, providing a visual indication that one of the detent pins has failed.

Abstract: A selector lever with redundant detent pins and detent plates and a method for using the selector lever to test for a failure of one or more detent pins. The selector lever includes at least two slides for independently moving the detent pins within the detent plates. The independent slides allow one detent pin to remain engaged. With only one detent pin engaged, the operator may test the ability to move the shaft and conclude whether or not the detent pin has failed.

Abstract: A selector lever with two detent plates and corresponding detent pins that travel along a shaft includes a float that moves with each of the detent pins. When a detent pin fails, a float pin remains engaged with a catch, thereby preventing rotational movement of the shaft.

Abstract: A selector lever with redundant detent pins and detent plates and a method for using the selector lever to test for a failure of one or more detent pins. The selector lever includes at least two slides for independently moving the detent pins within the detent plates. The independent slides allow one detent pin to remain engaged. With only one detent pin engaged, the operator may test the ability to move the shaft and conclude whether or not the detent pin has failed.

Abstract: A selector lever with two detent plates and corresponding detent pins that travel along a shaft includes a float that moves with each of the detent pins. When a detent pin fails, a float pin remains engaged with a catch, thereby preventing rotational movement of the shaft.

Abstract: A selector lever with redundant detent pins and detent plates and a method for using the selector lever to test for a failure of one or more detent pins. The detent plates include a plurality of slots connected by a channel that corresponds to a disengaged position, enabling the detent pin to be moved from one slot to another. The selector lever includes one or more obstructing features in the channels of the detent plates. The selector lever further includes indicators for comparing the location of the shaft with the location of the obstructing features while the slide is in the disengaged position.

Abstract: A selector lever that comprises a shaft rotatably attached to a pivot and arranged between two detent plates, each of the detent plates having a plurality of slots arranged for receiving a detent pin located on the shaft. Each of the plurality of slots on each of the two detent plates is defined by a radial depth. One or more of the plurality of slots is a failure detection slot having an extended radial depth. When one of the detent pins has failed, the opposing detent pin is allowed to travel into the extended radial depth when placed in the failure detection slot. This action reveals a failure indicator, providing a visual indication that one of the detent pins has failed.

Abstract: A substantially tetrahedral squeezable resilient core cleaning utensil provided on its various faces with permanent or removable scrubbing surfaces, including porous surfaces containing detergent and the like.