Abstract: Some embodiments provide an irrigation flow sensor system, comprising: a housing forming a fluid channel to cooperate with conduits of an irrigation system; a paddle wheel device with at least a first blade of a set of the blades comprises a magnetic element; the paddle wheel device is positioned with at least a portion of the blades extends into the fluid channel as the blades rotate about an axis; a magnetic sensor proximate a pathway of the magnetic element as it rotates configured to provide a sensor output every time the magnetic element passes the magnetic sensor; a switch coupled to the magnetic sensor and a current loop, wherein the switch in an activate state is configured to temporarily change the current in the current loop in response to the sensor output, with a rate of change in current corresponding to a flow rate of the fluid flowing.

Abstract: Some embodiments provide an irrigation flow sensor system, comprising: a housing forming a fluid channel to cooperate with conduits of an irrigation system; a paddle wheel device with at least a first blade of a set of the blades comprises a magnetic element; the paddle wheel device is positioned with at least a portion of the blades extends into the fluid channel as the blades rotate about an axis; a magnetic sensor proximate a pathway of the magnetic element as it rotates configured to provide a sensor output every time the magnetic element passes the magnetic sensor; a switch coupled to the magnetic sensor and a current loop, wherein the switch in an activate state is configured to temporarily change the current in the current loop in response to the sensor output, with a rate of change in current corresponding to a flow rate of the fluid flowing.

Abstract: Some embodiments provide an irrigation flow sensor system, comprising: a housing forming a fluid channel to cooperate with conduits of an irrigation system; a paddle wheel device with at least a first blade of a set of the blades comprises a magnetic element; the paddle wheel device is positioned with at least a portion of the blades extends into the fluid channel as the blades rotate about an axis; a magnetic sensor proximate a pathway of the magnetic element as it rotates configured to provide a sensor output every time the magnetic element passes the magnetic sensor; a switch coupled to the magnetic sensor and a current loop, wherein the switch in an activate state is configured to temporarily change the current in the current loop in response to the sensor output, with a rate of change in current corresponding to a flow rate of the fluid flowing.

Abstract: A placard frame comprises a first frame member and a second frame member spaced from the first frame member and extending therefrom at a margin, wherein the first and second frame members and the margin define an interior space adapted to receive a placard. A projection is disposed on one of the first frame member and the second frame member at a location one of at and adjacent to the margin wherein the projection extends into the interior space. Further, a slot is in communication with the interior space.

Abstract: Among other things, methods, systems and computer program products for providing visual indication of documentation and coding of medical procedures may include providing a choice of medical codes associated with a medical procedure. A user selection of one of the medical codes is detected. Based on the detection, a visual indication of the user selection is generated on one or more anatomical diagrams.

Abstract: Some embodiments provide an irrigation flow sensor system, comprising: a housing forming a fluid channel to cooperate with conduits of an irrigation system; a paddle wheel device with at least a first blade of a set of the blades comprises a magnetic element; the paddle wheel device is positioned with at least a portion of the blades extends into the fluid channel as the blades rotate about an axis; a magnetic sensor proximate a pathway of the magnetic element as it rotates configured to provide a sensor output every time the magnetic element passes the magnetic sensor; a switch coupled to the magnetic sensor and a current loop, wherein the switch in an activate state is configured to temporarily change the current in the current loop in response to the sensor output, with a rate of change in current corresponding to a flow rate of the fluid flowing.

Abstract: A placard frame comprises a first frame member and a second frame member spaced from the first frame member and extending therefrom at a margin, wherein the first and second frame members and the margin define an interior space adapted to receive a placard. A projection is disposed on one of the first frame member and the second frame member at a location one of at and adjacent to the margin wherein the projection extends into the interior space. Further, a slot is in communication with the interior space.

Abstract: Among other things, methods, systems and computer program products for providing visual indication of documentation and coding of medical procedures may include providing a choice of medical codes associated with a medical procedure. A user selection of one of the medical codes is detected. Based on the detection, a visual indication of the user selection is generated on one or more anatomical diagrams.

Abstract: Among other things, methods, systems and computer program products for providing visual indication of documentation and coding of medical procedures may include providing a choice of medical codes associated with a medical procedure. A user selection of one of the medical codes is detected. Based on the detection, a visual indication of the user selection is generated on one or more anatomical diagrams.

Abstract: Among other things, methods, systems and computer program products for providing visual indication of documentation and coding of medical procedures may include providing a choice of medical codes associated with a medical procedure. A user selection of one of the medical codes is detected. Based on the detection, a visual indication of the user selection is generated on one or more anatomical diagrams.

Abstract: A method of manufacturing a fatigue life enhanced product from a plurality of workpiece parts. At least one fatigue enhancing operation is performed on a first workpiece at a first work station. At least one fatigue enhancing operation is performed on a second workpiece at a second work station. The first and second workpieces are transferred to a first assembly station, where the workpieces are joined to form a fatigue life enhanced product. Aerostructures manufactured according to the method may include components fabricated at different locations to have fatigue life enhancing properties, especially in bounding material adjacent to holes designed to accommodate fasteners. By use of the method, the final assembly step can thus avoid the necessity to include the processing of holes to enhance fatigue life, since this step has been performed prior to bringing components into position to be joined in the final shape or assembly of the airframe.

Abstract: A method of manufacturing a fatigue life enhanced product from a plurality of workpiece parts. At least one fatigue enhancing operation is performed on a first workpiece at a first work station. At least one fatigue enhancing operation is performed on a second workpiece at a second work station. The first and second workpieces are transferred to a first assembly station, where the workpieces are joined to form a fatigue life enhanced product. Aerostructures manufactured according to the method may include components fabricated at different locations to have fatigue life enhancing properties, especially in bounding material adjacent to holes designed to accommodate fasteners. By use of the method, the final assembly step can thus avoid the necessity to include the processing of holes to enhance fatigue life, since this step has been performed prior to bringing components into position to be joined in the final shape or assembly of the airframe.

Abstract: A circular opening (54) is formed in a wall (12). A tubular shank (42) of a nut mounting unit (40) is inserted into the opening (54). The unit (40) is moved endwise to place a nut cage base (46) against the wall (12). A split sleeve (82) is installed on a small diameter portion (90) of a mandrel (M). The mandrel (M) and sleeve (82) are inserted into the tubular shank (42) from the side of the wall (12) opposite the nut cage (44). The mandrel (M) is then retracted to successfully move increasing and maximum diameter portions (90, 92) of the mandrel (M) through the split sleeve (82). The mandrel portions (92, 94) exert a radially outwardly expanding force on the split sleeve (82). The split sleeve (82) in turn imposes a radially outwardly expanding force on the tubular shank (42). This causes a plastic deformation of the tubular shank (42), creating a tight interference fit between the tubular shake (42) and the sidewall of the opening (54). In this manner, the unit (40) is firmly secured to the wall (12).

Abstract: A circular opening (48) is formed in a structural wall (12). A tubular shank (28) of a nut mounting grommet (26) is inserted into the opening (48). The grommet (26) is moved endwise to place a shoulder surface (34) on the base of a nut mounting cup (30) against the wall (12). A split sleeve (54) is installed on a small diameter portion (62) of a mandrel (52) and the mandrel and sleeve (52, 54) are inserted into the tubular shank (28) from the side of the wall (12) opposite the nut receiving cup (30). The mandrel (52) is then retracted to successively move increasing and maximum diameter portions (64, 66) of the mandrel (52) through the split sleeve (54). The mandrel portions (64, 66) exert a radially outwardly expanding force on the split sleeve (54). The split sleeve (54) in turn imposes a radially outwardly expanding force on the tubular shank ( 28).

Abstract: A split sleeve (S) is deposited into a sleeve loader (24, 24'), with a lower end of the sleeve (S) on a sleeve support surface (154). A mandrel (M) carried by a puller tool (10, 10') is inserted into the sleeve loader (24, 24'), and through the sleeve (S), to position the sleeve (S) on a small diameter portion (50) of the mandrel (M), and an end portion of the sleeve (S) within a nosepiece (12), against a sleeve end contacting surface (66). The tool (10, 10') is moved away from the sleeve loader (24, 24') to pull the mandrel (M) out from the sleeve loader (24, 24'). Then the mandrel (M) is inserted into an opening (16) in a workpiece (14). The tool (10, 10') is moved endwise to place the sleeve (S) within the opening (16) and a workpiece contacting end surface of the nosepiece (12) into contact with the workpiece (14). The tool (10, 10' ) is then operated to retract the mandrel (M).

Abstract: A circular opening (48) is formed in a structural wall (12). A tubular shank (28) of a nut mounting grommet (26) is inserted into the opening (48). The grommet (26) is moved endwise to place a shoulder surface (34) on the base of a nut mounting cup (30) against the wall (12). A split sleeve (54) is installed on a small diameter portion (62) of a mandrel (52) and the mandrel and sleeve (52, 54) are inserted into the tubular shank (28) from the side of the wall (12) opposite the nut receiving cup (30). The mandrel (52) is then retracted to successively move increasing and maximum diameter portions (64, 66) of the mandrel (52) through the split sleeve (54). The mandrel portions (64, 66) exert a radially outwardly expanding force on the split sleeve (54). The split sleeve (54) in turn imposes a radially outwardly expanding force on the tubular shank ( 28).

Abstract: The present invention provides a method of installing a grommet within an opening in a wall of composite material. An opening (10) is formed in a wall of composite material (12). A countersink (20) is formed at one end of the opening (10). A grommet (22) is placed into the opening (10). A split sleeve (28) is placed on the small diameter portion (30) of a mandrel (32) which is attached to a power puller (36). The mandrel (32) with the split sleeve (28) is placed through the opening (10) and a grommet (22). The power puller (36) is then operated to pull the mandrel (32) back through the opening (10) and the grommet (22) thereby expanding the split sleeve (28) which in turn provides for the radial expansion of the grommet (22). During the radial expansion of the grommet (22), ends of fibers (16) are forced into the surface of the grommet (24 ). After the mandrel (32) has been pulled all the way through the split sleeve (28) both it and the split sleeve (28) are removed from the grommet (22).

Abstract: A noncircular opening is formed in a material. A mandrel or mandrel and expansion sleeve are used for coldworking a circular region of the noncircular opening, and for forcing a hard metal insert into coldworking contact with the material immediately bordering the remaining portion of the noncircular opening. An insert may be placed within a slot to form with a circular closed end of the slot a substantially circular opening. An expansion sleeve is placed in the opening and an expansion mandrel is pulled through it, or an expansion mandrel is used alone in the opening, to coldwork the circular region of the opening. An insert may be placed within an opening and then a mandrel moved through an expansion sleeve placed in a circular opening in the insert, or a mandrel alone may be moved through the opening, to radially expand the insert and coldwork the material bounding the noncircular opening.

Abstract: A pair of openings (14) are drilled in a workpiece (12) at locations spaced inwardly from an edge (76) of the workpiece (12). Each opening is cold-expanded by the passage of a mandrel (46') only, or a mandrel (46) and split sleeve (58), to create an annular zone of residual compressive stresses (72) in the workpiece material immediately surrounding the openings (14'). Then the workpiece (12) is cut along lines extending from the edge (76) inwardly to central regions of the cold-expanded openings (14'). The workpiece material between the two openings (14') and the two cuts (74) is removed. The edge portions (72) of the material in the vicinity of the cuts (74) and the openings (14') are machined to a final desired size and shape, to define connector slots (84) having cold-expanded round regions bounding the slots (84).

Abstract: A combined hole size gauge and oversized hole marker having either first and second sensing members (42, 44) or a single dimensionally graduated size sensing member (14) which when inserted into a hole (40) in a workpiece (38) allows the user to determine whether the hole is of at least minimum size and if it is of greater than maximum size. If the hole is oversized, a marker adjacent the oversized hole size sensing member (44) or the greater portion of the single dimensionally graduated size sensing member (18) is permitted to contact the workpiece (38) and leave an indication that the corresponding hole is oversized.