Resources Contact Us Home
System for providing cyclic motion

Image Number 9 for United States Patent #7958579.

In one embodiment, a system for providing cyclic motion includes a magnetic drive having an electrically conductive coil defining a bore and a magnetic member movable through the bore. A control provides current to the coil and selectively reverses the direction of the current to move the magnetic member through the bore. In another embodiment, the system includes a counterbalance. The counterbalance includes a biasing member for reacting against a load applied to a support, and a lever arm coupled to the biasing member for varying a preload of the biasing member. In another embodiment, the magnetic drive and the counterbalance may be incorporated into an apparatus for reciprocating a person.

  Recently Added Patents
Lateral flow test kit and method for detecting an analyte
Vapor phase decarbonylation process
Isolated nucleic acid molecule encoding an antibody that reduces GDF-8 activity
Gate timing for short servo wedge in disk memory systems
Look up table (LUT) structure supporting exclusive OR (XOR) circuitry configured to allow for generation of a result using quaternary adders
Phone messaging using audio streams
  Randomly Featured Patents
Distributor box for septic tank systems
Large valve-actuator
Method of operating a machine for cutting stacks of material in sheets
Method and apparatus for receiving ultrasonic waves by optical means
Flossing device and method
Intraocular pressure reducing 11,15-diacyl prostaglandins and method of using
Active energy ray-curable unsaturated resin composition
Method, system and device for a network side to enable an MSS to enter the idle mode in a wireless MAN
Modular rake shaft assembly
Reputation in on-line consumer markets