Abstract: An exercise device includes a member that moves through a selected one of a plurality of differently available paths. A display provides a visual representation of the movement of the first member.

Abstract: An exercise device as a member configured to be driven by one or more feet, a roller rotationally coupled to the first member and a first projection extending away from the first roller. The exercise device includes a roller guide including an inclined floor underlying the roller and overhang extending over the projection opposite a first side of the roller.

Abstract: An exercise device includes a frame defining a longitudinal axis. A foot link includes a rearward portion that is constrained to move in an orbital path approximately parallel to the longitudinal axis and a forward portion that reciprocally engages the guide track. A swing arm is a pivotally connected to the frame, the swing arm having an upper portion extending above the pivotal connection and a lower portion disposed below the pivotal connection. An engagement mechanism having a first portion coupled to the lower portion and a second portion coupled to the forward portion of the foot link, such that a rearward force applied to the upper portion will produce a force on the forward portion having a downward component. An arm enabling/disabling mechanism is positioned on the elongate swing arm below the pivotal connection. The arm enabling/disabling mechanism can be effectuated by a user without the user interrupting exercise.

Abstract: An apparatus for generating and manipulating a high-pressure fluid jet includes an assembly coupled to a motion assembly that imparts motion to the assembly along one or more axes. The motion assembly includes two motors coupled together to form a gimbal wrist, each motor having an axis of rotation. The two axes of rotation of the two motors can be perpendicular to each other, but are not necessarily aligned with the manipulator's axes of motion. The high-pressure fluid assembly incorporates a swivel that can rotate about two axes which may be parallel to the two motors' axes of rotation, allowing the high-pressure tubing contained therein to follow the motion imparted by the gimbal wrist of the motion assembly.

Abstract: An exercise device is provided including a foot link having a rearward end and a forward end. An adjustable stride mechanism is provided. The adjustable stride mechanism includes a primary gear and a secondary gear. The primary gear is sized larger relative to the secondary gear. A primary crank connects the primary gear and the secondary gear. A timing belt connects the primary gear to the secondary gear. The primary crank and the timing belt enable the secondary gear to rotate around the primary gear. A secondary crank is pivotally attached to the secondary gear and to a foot link. The secondary crank creates an ellipse-shaped path for the foot link as the secondary gear rotates around the primary gear. Thus, the foot link motion combines an at least a dual ellipse motion. An automatic adjusting mechanism can be provided to adjust the adjustable stride mechanism.

Abstract: An exercise device as a member configured to be driven by one or more feet, a roller rotationally coupled to the first member and a first projection extending away from the first roller.

Abstract: An exercise device includes a member that moves through a selected one of a plurality of differently available paths. A display provides a visual representation of the movement of the first member.

Abstract: An exercise apparatus for performing press exercises is provided. The exercise apparatus includes a frame and a support assembly adjustably coupled to the frame. A first press arm is coupled to the support assembly and is pivotal about a first pivot axis between a rest position and an extended position. A mechanism for add-on weights is further provided. The mechanism for add-on weights includes at least one add-on weight having a first region of contact and a second region of contact. The first region of contact can be defined by a selector pin hole in the add-on weight adapted to receive a selector pin. The selector pin engages the add-on weight approximately in line with the center of gravity of the add-on weight. The second region of contact can be provided by a stabilization bracket defining an aperture into which a stabilization pin on the add-on weight extends.

Abstract: A weight system includes a selector which is movable along weights and may be inserted into a void between adjacent weights.

Abstract: An exercise device includes a swing arm, a foot link and a connection link. A portion of the connection link is configured to be disconnected from the foot link.

Abstract: An apparatus for generating and manipulating a high-pressure fluid jet includes an end effector assembly coupled to a manipulator that imparts motion to the end effector. The end effector assembly includes a cutting head coupled to a source of high-pressure fluid and to a source of abrasive. A motion assembly is coupled to the cutting head via a clamp positioned around the cutting head. A nozzle body assembly is removably coupled to the cutting head assembly, which may be separated from the cutting head assembly to allow access to the orifice, without removing the cutting head assembly from the clamp. The clamp has a quick release mechanism and an alignment member. The motion assembly includes two motors coupled together to form a gimbal wrist, each motor having a horizontal axis of rotation. The two axes of rotation are perpendicular to each other, but are not necessarily aligned with the manipulator's axes of motion.

Abstract: An exercise apparatus for a user. The exercise apparatus includes a frame, a crank system coupled to the frame, a pivotal linkage pendulum system, a foot member and a foot member end of travel apparatus. The crank system includes one or more crank members. The pivotal linkage pendulum system comprises at least a first link member. The first link member is coupled to the crank system through at least a first pivot point. The first pivot point of the first link member is configured to move in a path during use. The foot member is coupled to the at least one first link member. The foot member end of travel apparatus provides a two-stage stiffness profile to the foot member indicating the end of travel to the user.

Abstract: An exercise apparatus for a user. The exercise apparatus includes a frame, a crank system coupled to the frame, a pivotal linkage pendulum system, a foot member and first and second directional resistance systems. The crank system includes one or more crank members. The pivotal linkage pendulum system comprises at least a first link member. The first link member is coupled to the crank system through at least a first pivot point. The first pivot point of the first link member is configured to move in a path during use. The foot member is coupled to the at least one first link member. The first and second directional resistance systems are each coupled to the crank system. The first direction is different from the second direction.

Abstract: An exercise apparatus (100) for performing press exercises is disclosed. The exercise apparatus includes a frame (102) and a support assembly (118) adjustably coupled to the frame. A first press arm (108) is coupled to the support assembly and is pivotal about a first pivot axis (140A) between a rest position and an extended position. An adjustment mechanism (152) is coupled to the support assembly and adapted to selectively adjust the support assembly between a first position, wherein when the first press arm is rotated about the first pivot axis a preselected angle, a distal end (304A) of the first press arm scribes a first predetermined path (300A), and a second position, wherein when the first press arm is rotated about the first pivot axis the preselected angle, the distal end scribes a second predetermined path (302A).

Abstract: This invention relates to apparatus and methods for z-axis control and collision detection and recovery for waterjet and abrasive-jet cutting systems. In one embodiment, an apparatus includes a linear rail, a slide member coupleable to a cutting head and slideably coupled to the linear rail, at least one actuator having a first end coupled to the slide member and a second end fixed with respect to the linear rail, a position sensor, and a controller. The actuator provides an adjustable support force that supports the weight of the cutting head, allowing the cutting head to be controllably positioned at a desired height above the workpiece. The actuator may include a pneumatic cylinder, or alternately, a linear motor.

Abstract: An exercise apparatus (100) for performing press exercises is disclosed. The exercise apparatus includes a frame (102) and a support assembly (118) adjustably coupled to the frame. A first press arm (108) is coupled to the support assembly and is pivotal about a first pivot axis (140A) between a rest position and an extended position. An adjustment mechanism (152) is coupled to the support assembly and adapted to selectively adjust the support assembly between a first position, wherein when the first press arm is rotated about the first pivot axis a preselected angle, a distal end (304A) of the first press arm scribes a first predetermined path (300A), and a second position, wherein when the first press arm is rotated about the first pivot axis the preselected angle, the distal end scribes a second predetermined path (302A).

Abstract: An apparatus for generating and manipulating a high-pressure fluid jet includes an end effector assembly coupled to a manipulator that imparts motion to the end effector along one or more axes. The end effector assembly includes a cutting head coupled to a source of high-pressure fluid and to a source of abrasive, to generate a high-pressure abrasive fluid jet. A motion assembly is coupled to the cutting head via a clamp positioned around the cutting head. A nozzle body assembly is removably coupled to the cutting head assembly upstream of the orifice. The nozzle body assembly may be separated from the cutting head assembly to allow access to the orifice, without removing the cutting head assembly from the clamp. The clamp has a quick release mechanism, allowing an operator to open the clamp by hand to allow access to the cutting head, and an alignment member is provided on an inner surface of the clamp to accurately locate the cutting head in the clamp.

Abstract: This invention relates to apparatus and methods for z-axis control and collision detection and recovery for waterjet and abrasive-jet cutting systems. In one embodiment, an apparatus includes a linear rail, a slide member coupleable to a cutting head and slideably coupled to the linear rail, at least one actuator having a first end coupled to the slide member and a second end fixed with respect to the linear rail, a position sensor, and a controller. The actuator provides an adjustable support force that supports the weight of the cutting head, allowing the cutting head to be controllably positioned at a desired height above the workpiece. The actuator may include a pneumatic cylinder, or alternately, a linear motor.

Abstract: This invention relates to methods and apparatus for recovering abrasive for use with abrasive jet cutting systems. In one embodiment, an apparatus in accordance with the invention includes an abrasive-laden fluid handling device coupled to a catcher tank of an abrasive jet cutting system, a pre-classifier fluidly coupled to the abrasive-laden fluid handling device, a hydro-classifier fluidly coupled to the pre-classifier, a fine-particle separation tank fluidly coupled to a clarified-fluid flow outlet of the hydro-classifier, a wet abrasive receptacle positioned to receive a wet recovered abrasive discharged from the hydro-classifier, a de-watering device engageable with the wet recovered abrasive in wet abrasive receptacle, and a dryer unit. The abrasive-laden fluid handling device may include an abrasive-laden fluid conduit having a first end in fluid communication with the catcher tank and an abrasive-laden fluid outlet.