Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface. The side surface can includes a toothed portion. The toothed portion can comprise a plurality of teeth. Each one of the teeth can have the same height.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: A modular patient care system having a central management unit module and one or more detachable functional units is described. Using unique mechanical and electrical features, the modular patient care system is capable of flexibly, bilaterally, and safely providing electrical power from the central management unit to the attached functional units, with exposed power leads of end units being electrically isolated for safety and security. Functional units are capable of detecting the presence of other functional units more distant from the central management unit for passing power to those units, and for otherwise electrically isolating exposed power leads when no further units are attached.

Abstract: A modular patient care system having a central management unit module and one or more detachable functional units is described. Using unique mechanical and electrical features, the modular patient care system is capable of flexibly, bilaterally, and safely providing electrical power from the central management unit to the attached functional units, with exposed power leads of end units being electrically isolated for safety and security. Functional units are capable of detecting the presence of other functional units more distant from the central management unit for passing power to those units, and for otherwise electrically isolating exposed power leads when no further units are attached.

Abstract: A modular patient care system having a central management unit module and one or more detachable functional units is described. Using unique mechanical and electrical features, the modular patient care system is capable of flexibly, bilaterally, and safely providing electrical power from the central management unit to the attached functional units, with exposed power leads of end units being electrically isolated for safety and security. Functional units are capable of detecting the presence of other functional units more distant from the central management unit for passing power to those units, and for otherwise electrically isolating exposed power leads when no further units are attached.

Abstract: A dental apparatus includes a tray that is shaped and dimensioned to fit over at least some of the teeth of a patient. The tray defines a tunnel through which to evacuate saliva from the mouth of the patient. The tray includes a connector portion for coupling a suction source to the tunnel, and the tray defines at least a first opening in fluid communication with the tunnel through which saliva may be sucked from the mouth of the patient into the tunnel for communication to the suction source. The apparatus may take the form of a fluoride treatment tray or an impression tray, including a bite registration tray, it may include multiple trays, and it may define additional spaced-apart openings in fluid communication with the tunnel to facilitate evacuation of saliva from a larger region within the mouth of the patient. Preferably, the connector portion is configured to receive an end of a conventional saliva ejector in a close fitting relationship in order to couple a commonly used suction source to the tunnel.

Abstract: A self-contained handheld infrared medical thermometer having an elongated probe that is reciprocably movable between a retracted position, located fully within the thermometer housing, and an extended position, located exterior to the housing. When extended, the probe is adapted for insertion into a patient's outer ear canal to measure the patient's body temperature. When the probe is retracted within the housing, a reference plate is pivoted in front of the probe, to facilitate calibration. Advancement of the probe to its extended, operative position automatically pivots the reference plate away from the advancing probe and, in addition, automatically advances a disposable protective cover from a container for a large number of such covers into a position where it automatically stretches over the advancing probe to provide hygienic protection.

Abstract: An apparatus (10) for dispensing struts (11 and 12) for use by an astronaut in erecting a truss structure in extraterrestrial space comprises a frame to which a platform (16) is attached. The astronaut anchors himself to the platform (16) while erecting the truss structure. Pairs of retainer assemblies for securing opposite ends of struts of different lengths, i.e., the pair of retainer assemblies (22 and 23) for the struts (11), and the pair of retainer assemblies (22' and 23') for the struts (12), are also attached to the frame. One retainer assembly (22 or 22') from each pair is positioned within the astronaut's reach when he is anchored to the platform (16), and the other retainer assembly (23 or 23') from each pair is positioned remote from the astronaut's reach. Each of the remote retainer assemblies (23 and 23') comprises a plurality of spring-loaded receptacles (41) for receiving one end of the corresponding struts (11 or 12).

Abstract: A mechanism for coupling a strut (30) to a nodal element (32) comprises a female coupling fixture (31) and a male coupling fixture (33). The female coupling fixture (31) includes an elongate cylindrical member (35), a distal end of which is hemicylindrically configured with an inner surface that is contoured to receive a conjugately contoured knob on a distal end of the male coupling fixture (33) in mating engagement. The female coupling fixture (31) also includes a sleeve (36), which is slidable coaxially from an OPEN position around an intermediate portion of the cylindrical member (35) to a LOCKED position around the matingly engaged distal ends of the cylindrical member (35) and the male coupling fixture (33). Spring-biases locking bars (50) and (51) maintain the sleeve (36) in the LOCKED position.

Abstract: This invention is directed to a collar for a small animal wherein the collar provides a control for releasing a chemical toxic to pests such as fleas and ticks on the small animal. Also, the collar comprises a releasable catch so that a small animal, upon tugging upon the collar, can pull apart the collar and escape. In addition, the collar provides means for carrying identification with the name of the owner or the person to contact if the small animal or pet is lost.

Abstract: A mechanism for coupling a strut (30) to a nodal element (32) comprises a female coupling fixture (31) and a male coupling fixture (33). The female coupling fixture (31) includes an elongate cylindrical member (35), a distal end of which is hemicylindrically configured with an inner surface that is contoured to receive a conjugately contoured knob on a distal end of the male coupling fixture (33) in mating engagement. The female coupling fixture (31) also includes a sleeve (36), which is slidable coaxially from an OPEN position around an intermediate portion of the cylindrical member (35) to a LOCKED position around the matingly engaged distal ends of the cylindrical member (35) and the male coupling fixture (33). Spring-biases locking bars (50) and (51) maintain the sleeve (36) in the LOCKED position.