US5016872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic type stationary cycle exercise
Assignee: Individual
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Filing: 1990-06-11
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Granted: 1991-05-21
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Expires: 2010-06-11
Abstract
Abstract A hydraulic type stationary cycle exerciser includes a base frame. On a rear upper beam of the base frame there is mounted a seat support on which a seat is provided. A cylinder is pivotably mounted to a front upper beam of the base frame at one end thereof and a lever arm is fixedly mounted to a pivot point of the cylinder such that the lever arm follows the cylinder to pivotally move between a forwardmost position and a backwardmost position.
Inventors
- 👤 Sunny Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:41
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/0002; A63B22/001; A63B22/06; A63B22/0605; A63B21/00; A63B21/008; A63B21/0083
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
194 words
A hydraulic type stationary cycle exerciser comprising: a base frame; a seat support being mounted on a rear portion of said base frame and a seat being mounted on said seat support; a pedal mounting means being mounted on a middle portion of said base frame, a pedaling means being mounted on said pedal mounting means; a primary cylinder being pivotably mounted to a front portion of said base frame at one end thereof, a piston of said primary cylinder being attached to a middle point of said pedaling means at a distal end thereof, a lever arm being fixedly mounted to a pivot point of said primary cylinder at one end thereof such that said lever arm follows said primary cylinder to pivotally move between a forwardmost position and a backwardmost position upon revolution of said pedaling means; a beam being mounted to said base frame beneath said pedal mounting means; an auxiliary cylinder being fixedly mounted on said beam at an end thereof and having an acute angle with said pedal mounting means, a piston of said auxiliary cylinder being attached to an underside of said primary cylinder at a pivot thereof.
Claim 2
Dependent Claim
194 words
A hydraulic type stationary cycle exerciser comprising: a base frame; a seat support being mounted on a rear portion of said base frame and a seat being mounted on said seat support; a pedal mounting means being mounted on a middle portion of said base frame, a pedaling means being mounted on said pedal mounting means; a primary cylinder being pivotably mounted to a front portion of said base frame at one end thereof, a piston of said primary cylinder being attached to a middle point of said pedaling means at a distal end thereof, a lever arm being fixedly mounted to a pivot point of said primary cylinder at one end thereof such that said lever arm follows said primary cylinder to pivotally move between a forwardmost position and a backwardmost position upon revolution of said pedaling means; a beam being mounted to said base frame beneath said pedal mounting means; an auxiliary cylinder being fixedly mounted on said beam at an end thereof and having an acute angle with said pedal mounting means, a piston of said auxiliary cylinder being attached to an underside of said primary cylinder at a pivot thereof.
Claim 3
Dependent Claim
51 words
A hydraulic type stationary cycle exerciser as claimed in claim 1 further comprising an oil pipe communicating between two chambers within said primary cylinder defined by a piston head of said primary cylinder and an adjustable valve being provided on said oil pipe for adjusting a flow within said oil pipe.
Claim 4
Dependent Claim
51 words
A hydraulic type stationary cycle exerciser as claimed in claim 1 further comprising an oil pipe communicating between two chambers within said auxiliary cylinder defined by a piston head of said auxiliary cylinder and an adjustable valve being provided on said oil pipe for adjusting a flow within said oil pipe.
Claim 5
Dependent Claim
38 words
A hydraulic type stationary cycle exerciser as claimed in claim 1 further comprising posting means provided between said base frame and said pedal mounting means to provide a reinforced structure for the boat-rowing operation of said cycle exerciser.
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) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |