32results about How to "Increased and decreased resistance" patented technology

An adjustable drainage system for regulating cerebrospinal fluid flow in a hydrocephalus patient where the drainage rate is adjusted in response to ventricular volume variations in the patient. The system includes an adjustable valve and a volume sensor that can be periodically energized with an external system controller device by the patient or attending physician to determine when, or if, a change in the ventricular volume has occurred. The system enables the user to adjust the valve's resistance in response to changes in the ventricular volume using the controller device so that a target ventricular volume can be achieved. Also provided is a method of continuously draining cerebrospinal fluid from the cranial cavity of the patient using the system of the present invention.

The abdominal exerciser of the present invention is an exercise device designed to work the abdominal and oblique muscle groups. The abdominal exerciser includes a sled that is supported by and slides or rolls along at least one track. The upper body support is ergonomically positioned higher than the sled, and fixed to a cross bar supported by the track. The cross bar is designed to rotate forward to simulate an abdominal exercise “crunch” motion when the knees are brought within proximity of the upper body support.

An exercise device capable of simultaneously exercising a plurality of muscle groups, which includes an exercise chair mounted to a base, the exercise chair having a pivotally-resistant seat back. The exercise device further includes large, curvilinear conduits through which pass adjustably-resistant elastic bands with grips fixedly attached to the elastic bands proximate the upper and lower ends of the curvilinear conduits, which curvilinear conduits are laterally spaced, one on each side of the exercise chair. The exercise device further includes a resistive foot platform positioned at the front end of the base, which resistive foot platform is moveably engaged with the exercise chair. The exercise device further includes a resistive seated-row grip positioned at the front end of the base that permits cardiovascular exercise.

A resistance regulating device for a wheel of a training device is disclosed. The resistance regulating device comprises a rotary mechanism pivotally connected with a stationary mechanism and a motor with other components to rotate the rotary mechanism and hence a distance between magnets of the rotary mechanism and the wheel is changed. In addition, an optical detection device may be used to detect and define a minimum resistance and a maximum resistance and hence to adjust a resistance in a stepless manner An emergency brake mechanism may be further employed.

A control system for use with an exercise machine having a first sensor for transmitting force data, a second sensor for transmitting position data, a control unit for receiving the force data and the position data and a pump activated by the control unit to add or remove liquid from a tank to increase or decrease weight resistance for the exercise machine.

The invention provides compositions and methods for screening individuals for the presence of G-protein coupled receptor (GPCR) variants. The compositions and methods are useful for determining clinical outcome of drug therapy or for tailoring drug therapy for the individual based upon the presence or absence of one or more GPCR variants in the subject.

An exercising apparatus designed to fit around a seat includes a frame that is adapted to be secured to a support. The frame is a U-shaped configuration with a lateral open area to receive the seat into the frame. One or more arms are coupled to the frame about one or more pivots. Further, the pivots allow a pivotal motion of each of the arms when a force is exerted thereto by a user. One or more resistance devices coupled to the frame and the arms, which provide resistance to the pivotal motion of each of the arms. The resistance devices, which may be a hydraulic or pneumatic piston and cylinder, may include a spring to bias the arms toward their initial, upright position.

A bicycle shift control device comprises a traveling state detecting circuit that detects a traveling state of the bicycle and a manually operated switch that outputs a switch signal. A shift control circuit provides a control signal, in response to the switch signal provided by the operation of the switch, for setting the speed stage of a bicycle transmission to correspond to the range of traveling states that contains the detected traveling state.

An exercise device which includes a first and second lever pivotally attached to a frame and pivotally interconnected by a connecting rod. A first arm is pivotally connected to the frame and a second arm is pivotally connected to the ends of the first arm and the second lever opposite the ends connected to the frame. The second arm includes a seat for the user, whose body weight provides a resistance to rotation of the free end of the first lever. In one embodiment a slide assembly is engaged with the second lever to selectively vary the resistance to rotation of the first lever.

A dual speed hard drive system with an actuator retract system capable of retracting the actuator at approximately the same speed and power in both speed modes. In one embodiment, the control of resistance is used to control the amount of back-emf current supplied to the voice coil motor. In another embodiment, the circuit selectively restrict which spindle motor winding is allowed to supply back-emf current to the voice coil motor. In yet another embodiment, a voltage or a current regulator is used to control the current flowing into the voice coil motor. In all three embodiments, the amount of back-emf current supplied to the voice coil motor is proportional to the power and speed at which the actuator is being retracted.

The total body exercise apparatus comprises a unique movable structure to provide resistance for a variety of exercises. In one or more embodiments, the exercise apparatus comprises arms rotatably secured via a joint that allows the arms to provide resistance in virtually any direction. The exercise apparatus utilizes this capability to resist motions of various exercises and body motions to tone and strengthen a user's muscles. The resistance provided may be adjustable by an adjustable resistance assembly or by a cuff and socket assembly that applies variable force to a spherical head of the joint of the exercise apparatus.

The present invention is a rehabilitation and mobility improvement apparatus (RMIA) and method of use for use in providing increased mobility in persons having reduced strength and mobility due to for instance injury or illness. The RMIA preferably defines a user wearable harness having at least one stretchable bungee cord and an appendage support device. The appendage support device is placed on a mobility reduced appendage (MRA) of the user allowing the user to exercise the MRA without needing to support the entire weight of the MRA. The RMIA is adjustable so as to alter resistance, to exercise a different MRA, and to accommodate users of different sizes.

An automated unspooling mechanism capable of dispensing of knitting material strands in a dynamically-controlled tension on a knitting machine. An unspooling device is configured to sense the tension of a strand fed to the knitting machine, and responsively adjust the strand deployment speed to avoid too little or too much strand dispensing without interrupting the knitting process. The unspooling device includes a variable motor drive that can rotate the strand package in various speeds, and a spring arm trigger that can sense the current tension of the dispensed material. The spring arm trigger can vary its arm position based on the sensed tension. The arm position is then processed and converted to a signal to vary the motor speed. Therefore, the deployment speed of the strands can be dynamically controlled based on a sensed tension of feeding the strand.

A golf training system that comprises an apparatus and a method used in combination is disclosed. The system comprises apparatus that includes club having an elongate shaft and a head. The head has a striking surface that extends in a plane that is substantially parallel to the length of the shaft (it has no loft), the striking surface being generally circular in section and approximately 10 cm in diameter. The apparatus further includes a strike object such as a nail that comprises an elongate stalk and a head. The system further comprising a coaching method that includes placing the nail on the ground on a surface directed towards a target; and directing a learner to use the club to drive the nail in a direction towards t target along the ground.

A circuit breaker is disclosed. The circuit breaker includes a first current path section and a second current path section. At least one of the first and second current path section includes a first current path section member and at least one second current path section member. The at least one second current path section member is arranged in spaced relation to a surface of the first current path section member. The at least one second current path section member is electrically coupled with the first current path section member via at least a first coupling surface portion of the surface of the first current path section member.

Output waveform of the generator is improved through stabilization of field current by removing flywheel diode used to be required for automatic voltage regulator. Output electric current of excitation winding 3 is rectified by rectifier 8 and is supplied to field winding 5 of rotor 4. Impedance adjustment circuit 12 is provided to circuit where field current flows. Target electric current determination unit 10 determines target electric current (target field current) used to control output voltage of power generation winding 2 to the reference voltage. Impedance adjustment circuit 12 increases or decreases the impedance of field current circuit so that the field current detected by electric current detector 11 converges with target electric current.

A small inexpensive two terminal variable resistance assembly that conveniently changes its resistance when a force of an actuator is applied. It can be made for power applications as well as in miniature dimension versions in values from milli-ohms to meg-ohms. This variable resistor increases its power handling capacity during a decrease in its ohmic value, contrary to present three terminal potentiometers or reostats. It does this by a rolling action that increases or decreases two resistive surface areas in parallel. It could also be used as a variable capacitor.

The resistance method is a process for conditioning of an electric current and subjecting it to manipulated resistance levels to cause an effect on a substance as the current passes through. The method has two basic functions. One is to condition the electric current. This takes place during the series of steps that manipulate the frequency, voltage, and amps to provide a combination suitable for a predetermined threshold or action. The other is to manipulate the resistance of a substance. This is done by manipulating the atmospheric pressure, pH, salinity, and temperature of the substance, all of which takes place in a reactor. The reactor provides an isolated, enclosed environment for the manipulation to take place. The method also utilizes an electronic control system. The electronic control system simultaneously measures and manipulates the variables of the process, thereby creating an environment within the reactor that either increases or decreases the amount of resistance to which the electric current is subjected.