Patent US5755643A successfully refreshed from Google Patents.
US5755643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding collapsible step exerciser with damping means
Assignee: Guthy-Renker Corp
•
Filing: 1997-07-02
•
Granted: 1998-05-26
•
Expires: 2017-07-02
Abstract
Abstract A folding collapsible step exerciser including a base frame, a front upright pivoted to a front side of the base frame and locked in a vertical position by a lock screw, a driving wheel revolvably supported on the base frame and having a double crank type wheel shaft, a damping wheel turned with the driving wheel, a friction belt mounted on the base frame and adapted to impart a friction resistance to the damping wheel, two handlebars bilaterally pivoted to the front upright, and two pedals having a respective front end respectively pivoted to the bottom ends of the handlebars and a respective rear end respectively pivoted to the two ends of the double crank type wheel shaft of the driving wheel.
Inventors
- 👤 Lenny Sands
- 👤 Johnson Kuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:52
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/06; A63B22/0664; A63B22/0002; A63B22/001; A63B2022/067; A63B21/00; A63B21/012; A63B21/015; A63B2210/00; A63B2210/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
346 words
A folding collapsible step exerciser comprising: a base frame having a front mounting block, two front supports bilaterally and fixedly fastened to said front mounting block, a rear support, and an axle housing transversely and fixedly mounted on a top end of said rear support; a front upright pivotably connected between said front supports of said base frame by pivot means, having a bottom end releasably secured to said front mounting block of said base frame by a lock screw and a top end fixedly mounted with two horizontally aligned pivots; a U-shaped damping wheel holder frame fixedly mounted on said base frame between said front supports and said rear support, having two upright arms; a driving wheel revolvably supported on said axle housing of said base frame, having a fixed wheel shaft made in the form of a double crank; a damping wheel revolvably supported on said upright arms of said U-shaped damping wheel holder frame, having a coupling portion at one side coupled to said driving wheel; a transmission belt coupled between said driving wheel and the coupling portion of said damping wheel for permitting said damping wheel to be turned with said driving wheel; a damping device, said damping device comprising a friction belt mounted on said base frame over the periphery of said damping wheel and imparting a friction resistance to said damping wheel, and an adjustment device controlled to adjust the tension of said friction belt; an idle wheel pivoted to one upright arm of said U-shaped damping wheel holder frame, and imparting a pressure to said transmission belt to keep it stretched; two pedals driven to turn said driving wheel, having a respective rear end respectively pivoted to two opposite ends of said fixed wheel shaft of said driving wheel, a respective front end fixedly mounted with a respective U-frame, and a respective foot plate disposed at a top side adjacent the respective rear end; and two handlebars respectively turned about the pivots of said front upright, and a respective bottom end respectively pivoted to the U-frames of said pedals.
Claim 2
Dependent Claim
346 words
A folding collapsible step exerciser comprising: a base frame having a front mounting block, two front supports bilaterally and fixedly fastened to said front mounting block, a rear support, and an axle housing transversely and fixedly mounted on a top end of said rear support; a front upright pivotably connected between said front supports of said base frame by pivot means, having a bottom end releasably secured to said front mounting block of said base frame by a lock screw and a top end fixedly mounted with two horizontally aligned pivots; a U-shaped damping wheel holder frame fixedly mounted on said base frame between said front supports and said rear support, having two upright arms; a driving wheel revolvably supported on said axle housing of said base frame, having a fixed wheel shaft made in the form of a double crank; a damping wheel revolvably supported on said upright arms of said U-shaped damping wheel holder frame, having a coupling portion at one side coupled to said driving wheel; a transmission belt coupled between said driving wheel and the coupling portion of said damping wheel for permitting said damping wheel to be turned with said driving wheel; a damping device, said damping device comprising a friction belt mounted on said base frame over the periphery of said damping wheel and imparting a friction resistance to said damping wheel, and an adjustment device controlled to adjust the tension of said friction belt; an idle wheel pivoted to one upright arm of said U-shaped damping wheel holder frame, and imparting a pressure to said transmission belt to keep it stretched; two pedals driven to turn said driving wheel, having a respective rear end respectively pivoted to two opposite ends of said fixed wheel shaft of said driving wheel, a respective front end fixedly mounted with a respective U-frame, and a respective foot plate disposed at a top side adjacent the respective rear end; and two handlebars respectively turned about the pivots of said front upright, and a respective bottom end respectively pivoted to the U-frames of said pedals.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |