Treadmill resistance training apparatus

Abstract

Methods and apparatus are provided for monitoring plasma parameters in plasma doping systems. A plasma doping system includes a plasma doping chamber, a platen located in the plasma doping chamber for supporting a workpiece, an anode spaced from the platen in the plasma doping chamber, a process gas source coupled to the plasma doping chamber, a pulse source for applying pulses between the platen and the anode, and a plasma monitor. A plasma containing ions of the process gas is produced in a plasma discharge region between the anode and the platen. The pulses accelerate ions from the plasma into the workpiece. The plasma monitor may include a sensing device which senses a spatial distribution of a plasma parameter, such as plasma density, that is indicative of dose distribution of ions implanted into the workpiece.

1 . A resistance training apparatus for a treadmill having a frame, an upper portion, a forward end and an aft end, said apparatus comprising left side and right side units, each of said units comprising:
 a vertical support having an adjustable base connector to couple said vertical support to said treadmill frame, a riser portion coupled to and extending upward from said base connector, and an adjustable upper connector to couple said vertical support to said treadmill upper portion;   a rotational coupling connector connecting a rotational coupling to said riser portion;   a rotational coupling mounted to said rotational coupling connector such that the rotational axis of said rotational coupling is approximately horizontal;   a resistance element anchor coupled to said riser portion;   an elongated resistance arm having opposing first and second ends, said resistance arm coupled to said rotational coupling at a fulcrum point between said resistance arm first and second ends;   a first resistance element connector movably coupled to said resistance arm between said rotational coupling and said first end of said resistance arm and including a resistance element connector locking mechanism to lock said first resistance element connector at user selectable positions along said resistance arm;   one or more resistance elements connectable between said resistance element anchor and said first resistance element connector;   an adjustable handle; and,   an articulation joint coupling said handle to said resistance arm first end at a plurality of user selected angles.   
     
     
         2 . The apparatus of  claim 1 , wherein said rotational coupling connector comprises a hinge connector mounted to said riser portion with an approximately vertical rotation axis, said hinge connector selectively lockable in at least a deployed position. 
     
     
         3 . The apparatus of  claim 2 , wherein said hinge connector is lockable in a plurality of user selected rotated positions. 
     
     
         4 . The apparatus of  claim 1 , further comprising
 wherein the height of said rotational coupling connector along said riser portion is user adjustable.   
     
     
         5 . The apparatus of  claim 4 , further comprising:
 wherein said rotational coupling connector includes said resistance element anchor coupled to said riser portion, and the height of said anchor adjusts with said rotational coupling connector.   
     
     
         6 . The apparatus of  claim 1 , further comprising:
 wherein said adjustable base connector includes a portion disposed between said treadmill frame and the ground so as to receive at least some of the weight of said treadmill.   
     
     
         7 . The apparatus of  claim 1 , further comprising:
 wherein said riser portion is coupled to said adjustable base connector at an adjustable height.   
     
     
         8 . The apparatus of  claim 1  or  2 , further comprising:
 wherein said riser portion is coupled to said adjustable base connector at an adjustable angle. 
 
     
     
         9 . The apparatus of  claim 1 , further comprising:
 wherein said adjustable upper connector comprises a clamp portion to clamp against a part of said treadmill upper portion, an articulation joint coupled to said riser portion, and a length adjustable clamp coupler to couple said clamp portion to said articulation joint at a selectable angle.   
     
     
         10 . The apparatus of  claim 9 , further comprising:
 wherein said clamp includes a plurality of gripping protrusions disposed on at least a portion of the contact area between said clamp and said treadmill upper portion.   
     
     
         11 . The apparatus of  claim 1 , further comprising:
 a second resistance element connector movably coupled to said resistance arm between said rotational coupling and said second end of said resistance arm and including a locking portion to lock said second resistance element connector at user selectable positions along said resistance arm; and,   one or more resistance elements connectable between said resistance element anchor and said second resistance element connector.   
     
     
         12 . The apparatus of  claim 1  or  2 , further comprising a resistance arm stop. 
     
     
         13 . The apparatus of  claim 12 , wherein said resistance arm stop comprises a flexible coupling having opposing first and second ends, said flexible coupling connectable at a first end to a location on said riser portion and at a second end to a location on said resistance arm between said fulcrum point and said resistance arm second end. 
     
     
         14 . The apparatus of  claim 1 , wherein said handle comprises:
 a first part coupled to said articulated joint, a second part including an offset grip portion, said handle second part slidably and rotatably connectable to said handle first part along an interface region, and a handle locking mechanism to selectively lock said handle second portion at a selected fixed or selected dynamic position relative to said handle first part.   
     
     
         15 . The apparatus of  claim 14 , wherein said handle locking mechanism comprises:
 a spring loaded pin on either said first or second handle part, said pin located within said interface region; and,   an alternating pattern of close fitting apertures and transverse slotted apertures disposed along the length and circumference of the other of said first or second handle part within said interface region to receive said pin;   wherein, when said pin is received in a selected close fitting aperture the handle first and second parts are locked relative to each other, and when said pin is received in a selected transverse slotted aperture said handle first and second parts are prevented from sliding longitudinally relative to each other but have limited coaxial rotational movement relative to each other.   
     
     
         16 . The apparatus of  claim 1 , further comprising:
 a power actuated resistance adjustment mechanism coupled to said resistance arm and said first resistance element connector to move said first resistance element connector to user selectable positions along said resistance arm; and,   a power actuated resistance element connector locking mechanism.   
     
     
         17 . The apparatus of  claim 16 , further comprising:
 a second resistance element connector movably coupled to said resistance arm between said rotational coupling and said second end of said resistance arm;   one or more resistance elements connectable between said resistance element anchor and said second resistance element connector.   a second power actuated resistance adjustment mechanism coupled to said resistance arm and said second resistance element connector to move said resistance element connector to user selectable positions along said resistance arm; and,   a power actuated second resistance element connector locking mechanism to lock said second resistance element connector at user selectable positions along said resistance arm.   
     
     
         18 . The apparatus of  claim 16 , wherein each said power actuated resistance adjustment mechanism comprises an electro-pneumatically actuated cylinder. 
     
     
         19 . The apparatus of  claim 16 , wherein each said power actuated resistance adjustment mechanism comprises an electromagnetic linear motor. 
     
     
         20 . The apparatus of  claim 16 , wherein each said power actuated resistance adjustment mechanism comprises an electrically powered lead screw drive assembly. 
     
     
         21 . The apparatus of  claim 1  or  2 , further comprising:
 wherein said a first resistance element connector further includes opposing first and second resistance element connection points disposed on left and right sides of said resistance arm, respectively, each of said connection points to receive a resistance element; and, 
 one or more resistance elements connectable between said resistance element anchor and each of said first resistance element connector first and second opposing connection points. 
 
     
     
         22 . The apparatus of  claim 21 , further comprising:
 a second resistance element connector movably coupled to said resistance arm between said rotational coupling and said second end of said resistance arm, said second resistance connector including opposing first and second resistance element connection points disposed on left and right sides of said resistance arm, respectively, each of said connection points to receive a resistance element, and further including a locking portion to lock said second resistance element connector at user selectable positions along said resistance arm; and,   one or more resistance elements connectable between said resistance element anchor and each of said second resistance element connector first and second opposing connection points.   
     
     
         23 . The apparatus of  claim 1 , further comprising: a treadmill, wherein each of said left side unit and right unit is coupled to a corresponding side of said treadmill. 
     
     
         24 . The apparatus of  claim 17 , wherein each said power actuated resistance adjustment mechanism comprises an electro-pneumatically actuated cylinder. 
     
     
         25 . The apparatus of  claim 17 , wherein each said power actuated resistance adjustment mechanism comprises an electromagnetic linear motor. 
     
     
         26 . The apparatus of  claim 17 , wherein each said power actuated resistance adjustment mechanism comprises an electrically powered lead screw drive assembly. 
     
     
         27 . The apparatus of  claim 16 , further comprising: a treadmill, wherein each of said left side unit and right unit is coupled to a corresponding side of said treadmill. 
     
     
         28 . The apparatus of  claim 17 , further comprising: a treadmill, wherein each of said left side unit and right unit is coupled to a corresponding side of said treadmill.