Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
1999-12-06
2001-06-19
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C482S051000, C482S070000
Reexamination Certificate
active
06248044
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to exercise methods and apparatus and specifically, to exercise equipment which facilitates exercise through a curved path of motion.
BACKGROUND OF THE INVENTION
Exercise equipment has been designed to facilitate a variety of exercise motions. For example, treadmills allow a person to walk or run in place; stepper machines allow a person to climb in place; bicycle machines allow a person to pedal in place; and other machines allow a person to skate and/or stride in place. Yet another type of exercise equipment has been designed to facilitate relatively more complicated exercise motions and/or to better simulate real life activity. Such equipment typically links a relatively simple motion, such as circular, to a relatively more complex motion, such as elliptical.
SUMMARY OF THE INVENTION
The present invention provides a novel linkage assembly and corresponding exercise apparatus suitable for linking circular motion of left and right cranks to elliptical motion of left and right foot supports. In general, left and right connector links have first connection points connected to respective cranks; second connection points operatively connected to the apparatus frame and constrained to move through a predetermined path relative thereto; and third connection points connected to first portions of respective foot supports. A second portion of each foot support is operatively connected to the apparatus frame and constrained to move through a predetermined path relative thereto. Additional features and/or advantages of the present invention will become apparent from the more detailed description that follows.
REFERENCES:
patent: 5895339 (1999-12-01), Maresh
patent: 5897445 (1999-12-01), Maresh et al.
patent: 5897463 (1999-04-01), Maresh
Maresh Joseph D.
Stearns Kenneth W.
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