Abstract: The invention provides a crusher block assembly for a particulate size reduction system including a crusher block having an inboard face configured and adapted to cooperate with a swing hammer in a crusher chamber of a particulate size reduction system to crush particulate, and an outboard face for receiving an adjustment mechanism. The crusher block assembly also includes an adjustment mechanism joined to the outboard face on the crusher block. The adjustment mechanism is configured and adapted to adjust the position of the crusher block along a direction between an inboard location and an outboard location within the crusher chamber. The invention also provides a method of adjusting clearance between a swing hammer and a crusher block in a particulate size reduction system.

Abstract: The invention provides a particulate size reduction system including a grinding chamber, a center shaft defining an axis of rotation and configured for rotational motion within the grinding chamber, a wheel assembly mounted on the center shaft and at least one swing hammer mounted on the wheel assembly. The at least one swing hammer preferably includes a base portion having a first end having a mounting portion for attachment to a wheel assembly of a material treatment system, a second end, an inboard portion proximate the mounting and an outboard portion proximate the second end. The swing hammer also preferably includes a wear pad disposed on the base portion that preferably includes an interrupted surface to improve wear resistance of the swing hammer.

Abstract: The invention provides a crusher block assembly for a particulate size reduction system including a crusher block having an inboard face configured and adapted to cooperate with a swing hammer in a crusher chamber of a particulate size reduction system to crush particulate, and an outboard face for receiving an adjustment mechanism. The crusher block assembly also includes an adjustment mechanism joined to the outboard face on the crusher block. The adjustment mechanism is configured and adapted to adjust the position of the crusher block along a direction between an inboard location and an outboard location within the crusher chamber. The invention also provides a method of adjusting clearance between a swing hammer and a crusher block in a particulate size reduction system.

Abstract: The invention provides a crusher block assembly for a particulate size reduction system including a crusher block having an inboard face configured and adapted to cooperate with a swing hammer in a crusher chamber of a particulate size reduction system to crush particulate, and an outboard face for receiving an adjustment mechanism. The crusher block assembly also includes an adjustment mechanism joined to the outboard face on the crusher block. The adjustment mechanism is configured and adapted to adjust the position of the crusher block along a direction between an inboard location and an outboard location within the crusher chamber. The invention also provides a method of adjusting clearance between a swing hammer and a crusher block in a particulate size reduction system.

Abstract: The invention provides a particulate size reduction system including a grinding chamber, a center shaft defining an axis of rotation and configured for rotational motion within the grinding chamber, a wheel assembly mounted on the center shaft and at least one swing hammer mounted on the wheel assembly. The at least one swing hammer preferably includes a base portion having a first end having a mounting portion for attachment to a wheel assembly of a material treatment system, a second end, an inboard portion proximate the mounting and an outboard portion proximate the second end. The swing hammer also preferably includes a wear pad disposed on the base portion that preferably includes an interrupted surface to improve wear resistance of the swing hammer.

Abstract: The invention provides a particulate size reduction system including a grinding chamber, a center shaft defining an axis of rotation and configured for rotational motion within the grinding chamber, a wheel assembly mounted on the center shaft and at least one swing hammer mounted on the wheel assembly. The at least one swing hammer preferably includes a base portion having a first end having a mounting portion for attachment to a wheel assembly of a material treatment system, a second end, an inboard portion proximate the mounting and an outboard portion proximate the second end. The swing hammer also preferably includes a wear pad disposed on the base portion. The wear pad preferably substantially covers a face of the base portion. The wear pad preferably extends from a point proximate the second end of the base portion toward the first end of the base portion to a location proximate the mount.

Abstract: The invention provides a crusher block assembly for a particulate size reduction system including a crusher block having an inboard face configured and adapted to cooperate with a swing hammer in a crusher chamber of a particulate size reduction system to crush particulate, and an outboard face for receiving an adjustment mechanism. The crusher block assembly also includes an adjustment mechanism joined to the outboard face on the crusher block. The adjustment mechanism is configured and adapted to adjust the position of the crusher block along a direction between an inboard location and an outboard location within the crusher chamber. The invention also provides a method of adjusting clearance between a swing hammer and a crusher block in a particulate size reduction system.

Abstract: The invention provides a particulate size reduction system including a grinding chamber, a center shaft defining an axis of rotation and configured for rotational motion within the grinding chamber, a wheel assembly mounted on the center shaft and at least one swing hammer mounted on the wheel assembly. The at least one swing hammer preferably includes a base portion having a first end having a mounting portion for attachment to a wheel assembly of a material treatment system, a second end, an inboard portion proximate the mounting and an outboard portion proximate the second end. The swing hammer also preferably includes a wear pad disposed on the base portion. The wear pad preferably substantially covers a face of the base portion. The wear pad preferably extends from a point proximate the second end of the base portion toward the first end of the base portion to a location proximate the mount.

Abstract: The present invention is a radiographic sensor positioning system. In particular, the present invention is directed to a system for positioning a digital dental radiographic sensor in a patient's mouth and for positioning a radiographic device, e.g. a gamma ray source, to interact with the sensor. A preferred embodiment of the dental radiography positioning system comprises an aimer ring that slides onto an extension bar in one of several positions. The extension bar is preferably curved with a flared end and a tined end. The extension bar inserts into a bite block at one of three slots. The bite block has a bite surface above the three slots and a preferably tapered sensor holder slot with two stabilizer posts. A sensor holder is inserted into the sensor holder slot. For posterior images, the stabilizer posts can stabilize the sensor.

Abstract: The present invention is directed to, among other things, a grinding and impeller clip for attaching to a wheel assembly mounted for rotational motion within a grinding chamber of a coal pulverizer, wherein the clip has an arcuate cross sectional profile and a protective layer on its upper surface.

Abstract: The present invention is directed to, among other things, a stationary peg for securing within a grinding chamber of a coal pulverizer, wherein the stationary peg includes a base portion having a front surface with a groove defined therein and an elongate portion extending from the front surface of the base portion. A layer of a protective material is disposed on the upper surface of the elongate portion and at least a portion of the layer extends into the groove defined in the front surface of the base portion.

Abstract: The present invention is directed to, among other things, a grinding chamber side liner for attaching to the interior of a coal pulverizer housing that includes an overhanging rim for covering gaps between parts installed adjacently with respect to each other within the housing.