US4635933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Training apparatus
Assignee: Individual
•
Filing: 1985-10-04
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Granted: 1987-01-13
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Expires: 2005-10-04
Abstract
Abstract A muscle toning, strengthening or exercising machine has an arm provided with grips or other body-engaging members and swingable about an axis defined by a shaft to which the arm is coupled. This shaft is connected to another shaft by a transmission having a selected transmission ratio and the other shaft is connected to an electric motor which controls the force supplied for exercising, e.g. via a crank mechanism.
Inventors
- 👤 Josef Schnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:04
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/12; A63B23/1245; A63B23/1254; A63B21/00; A63B21/005; A63B21/0058; A63B21/40; A63B21/4027; A63B21/4033; A63B21/4034; A63B21/4035; A63B21/4041; A63B21/4047; A63B23/03508; A63B23/03516; A63B23/03525; A63B23/03533; A63B2220/00; A63B2220/50; A63B2220/54; A63B23/04; A63B23/0482; A63B23/0488; A63B23/0494; Y; Y10; Y10S; Y10S482/00; Y10S482/901; Y10S482/902
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
An exercise machine comprising: a support; a first shaft journaled on said support; an arm fixed to that first shaft and provided with means engageable by a trainee, whereby said trainee can swing said arm through a predetermined stroke and thereby rotate said shaft; a transmission on said support having an input connected with said first shaft, an output, and continuous-mesh gearing positively interconnecting said input and output mechanically with a transmission ratio; a second shaft operatively connected to said output of said transmission for rotation relative to said first shaft at said ratio; a link articulated to said second shaft at a location offset from an axis thereof; and means including a reversible variable speed/variable torque electric motor mounted on said support and having a third shaft on which said link is articulated at a location offset from an axis thereof for resisting rotation of said first shaft and arm on said support with a generally constant force in both rotational senses through the entire stroke of said arm.
Claim 2
Dependent Claim
170 words
An exercise machine comprising: a support; a first shaft journaled on said support; an arm fixed to that first shaft and provided with means engageable by a trainee, whereby said trainee can swing said arm through a predetermined stroke and thereby rotate said shaft; a transmission on said support having an input connected with said first shaft, an output, and continuous-mesh gearing positively interconnecting said input and output mechanically with a transmission ratio; a second shaft operatively connected to said output of said transmission for rotation relative to said first shaft at said ratio; a link articulated to said second shaft at a location offset from an axis thereof; and means including a reversible variable speed/variable torque electric motor mounted on said support and having a third shaft on which said link is articulated at a location offset from an axis thereof for resisting rotation of said first shaft and arm on said support with a generally constant force in both rotational senses through the entire stroke of said arm.
Claim 3
Dependent Claim
18 words
The exercise machine defined in claim 1 wherein said electric motor is provided with a shiftable speed-reducing transmission.
Claim 4
Dependent Claim
46 words
The exercise machine defined in claim 1 wherein said means on said arm is provided at at adjustable distance from the axis of said first shaft and includes a member projecting transversely to said arm and means for locking said member in position on said arm.
Claim 5
Dependent Claim
14 words
The exercise machine defined in claim 1 wherein all of said shafts are horizontal.
Claim 6
Dependent Claim
25 words
The exercise machine defined in claim 1 wherein two such first shafts are connected to said transmission and and have respective arms in mirrosymmetrical relation.
Claim 7
Dependent Claim
42 words
The exercise machine defined in claim 1, further comprising monitoring means for providing an optical output representing an exercise regimen generated by said machine and means between said arm and said first shaft for registering the torque applied to said first shaft.
Claim 8
Dependent Claim
43 words
The exercise machine defined in claim 6 wherein said monitoring means includes a pair of relatively rotatable shaft members disposed in line and a measuring hub connecting same, said measuring hub generating an electrical output representing the torque applied to said shaft member.
Claim 9
Dependent Claim
31 words
The exercise machine defined in claim 7 wherein said monitoring means includes a printer, a computer and a digital display, said machine being further provided with a brake for said motor.
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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) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |