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
Terminal box assembly
Bioelectric battery for implantable device applications
Random sampling for geophysical acquisitions
Floor relief for dot improvement
Method and system for imaging a cross section of a specimen
Cosmetic composition based on a supramolecular polymer and a hyperbranched functional polymer
System and method for multi-threaded MIMO OFDM channel equalizer
  Randomly Featured Patents
Determining the gradient and hessian of the image log slope for design rule optimization for accelerating source mask optimization (SMO)
Thermally enhanced shaving system
Ceiling fan housing
Pentafluorosulfanylbenzoylguanidines, processes for their preparation, their use as medicaments or diagnostic aids, and medicaments comprising them
High frequency computer terminal power supply with isolation
Table tennis racket
Device and method for transferring articles in the tobacco-processing industry
Organic compounds
Hydraulic system for an earth-moving machine and a temperature-controlled valve for a hydraulic system
Vane-piston pump