Patent US4396188A successfully refreshed from Google Patents.
US4396188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stationary rowing unit
Assignee: Concept II Inc
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Filing: 1981-07-15
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Granted: 1983-08-02
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Expires: 2001-07-15
Abstract
Abstract The unit includes a single rowing and seat component connected to a simplified braking mechanism. The slideable seat is attached to a monorail frame. The braking unit has an adjustably geared flywheel connected to a plurality of fan-type blades. The rowing component includes a handle attached to a drive chain which propels the flywheel.
Inventors
- 👤 Peter D. Dreissigacker
- 👤 Richard A. Dreissigacker
- 👤 Jonathan V. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/0076; A63B2022/0079; A63B21/00; A63B21/22; A63B21/225
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
138 words
A stationary rowing unit, comprising: a substantially horizontally-extended frame; a seat engaged with said frame and moveable therealong in a generally horizontal translation; means attached to said frame defining a foot positioning element; a flywheel rotatably journaled in said frame; braking means coupled to said flywheel for resisting rotation of said flywheel; said braking means comprises a bladed fan; an operating handle for causing rotation of said flywheel; drive means coupling said flywheel and said handle for driving said flywheel in response to operation of said handle; said drive means has interconnected plural gearing means for imparting a rotating moment on said flywheel; return means for taking up slack in said drive means; and said return means being connected to said drive means beyond where said drive means interconnects with said plural gearing means and opposite said handle.
Claim 2
Dependent Claim
138 words
A stationary rowing unit, comprising: a substantially horizontally-extended frame; a seat engaged with said frame and moveable therealong in a generally horizontal translation; means attached to said frame defining a foot positioning element; a flywheel rotatably journaled in said frame; braking means coupled to said flywheel for resisting rotation of said flywheel; said braking means comprises a bladed fan; an operating handle for causing rotation of said flywheel; drive means coupling said flywheel and said handle for driving said flywheel in response to operation of said handle; said drive means has interconnected plural gearing means for imparting a rotating moment on said flywheel; return means for taking up slack in said drive means; and said return means being connected to said drive means beyond where said drive means interconnects with said plural gearing means and opposite said handle.
Claim 3
Dependent Claim
30 words
A unit, according to claim 1, wherein: said frame comprises a monorail; and further including at least a pair of tubular means, coupled to said frame for supporting said monorail.
Claim 4
Dependent Claim
28 words
A unit, according to claim 1, further including: means coupled to said flywheel, for prohibiting rotation of said flywheel in a given direction relative to said drive means.
Claim 5
Dependent Claim
39 words
A unit, according to claim 1, wherein said positioning element has at least one plate; said plate has restraining means for restricting relative foot movement within proximity of said plate; and said angular plate has adjustable heel positioning means.
Claim 6
Dependent Claim
44 words
A unit, according to claim 1, wherein: said drive means has a static and dynamic position; said return means comprises elastic means for automatically returning said drive means to its static position; and said elastic means is attached at one end to said frame.
Claim 7
Dependent Claim
12 words
A unit, according to claim 1, wherein: said flywheel has monitoring means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |