US3721437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Walking trainer
Assignee: Lee Raymond Organization Inc
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Filing: 1972-03-03
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Granted: 1973-03-20
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Expires: 1992-03-03
Abstract
Abstract A training device for a young child, accident victim or such other person who requires assistance in learning to walk. The device, mounted on wheels, suspends the trainee in a harness, with a shock absorber and tension spring acting to counterbalance the suspended harness. The shock absorber action is adjustable to vary the rate of falling so as to correspond to the weight of the trainee, and his degree of attained walking skill.
Inventors
- 👤 K Skaricic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:58
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/008; A61H3/04; A61H2201/00; A61H2201/01; A61H2201/0165; A61H2201/16; A61H2201/1602; A61H2201/1614; A61H2201/1616; A61H2201/1619; A61H2201/1621; A61H2201/165; A61H2201/1652
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
Apparatus for use in the training of the skill of walking, comprising a frame of vertical and horizontal members mounted on castered wheels, a cable, a harness for suspending a walker trainee fastened to said cable, said cable being trained about a free turning pulley fastened in the horizontal frame member above the position of the trainee and said cable being fastened to a transverse frame arm which is pivotally mounted to a vertical frame member, said transverse frame arm being balanced in rotation about said vertical frame member by the force of the cable suspending the walker trainee and the force of a tension spring fastened to said transverse frame arm from the horizontal frame member.
Claim 2
Dependent Claim
117 words
Apparatus for use in the training of the skill of walking, comprising a frame of vertical and horizontal members mounted on castered wheels, a cable, a harness for suspending a walker trainee fastened to said cable, said cable being trained about a free turning pulley fastened in the horizontal frame member above the position of the trainee and said cable being fastened to a transverse frame arm which is pivotally mounted to a vertical frame member, said transverse frame arm being balanced in rotation about said vertical frame member by the force of the cable suspending the walker trainee and the force of a tension spring fastened to said transverse frame arm from the horizontal frame member.
Claim 3
Dependent Claim
38 words
The combination recited in claim 1 in which the said transverse frame arm is also restricted in rotational torque by a shock absorber fastened to said transverse frame arm and to a vertical frame member of the apparatus.
Claim 4
Dependent Claim
50 words
The combination recited in claim 1 in which the effect of the force of the tension spring in terms of the counter balance torque exerted on said transverse frame arm is varied by means of a sliding collar about the transverse frame arm to which the tension spring is fastened.
Claim 5
Dependent Claim
53 words
The combination recited in claim 3 in which the collar may be slid along the length of the transverse frame arm by means of rotation of a toothed gear which is rotatably fastenEd to the collar, the teeth of said gear meshing with teeth notched into one edge of the transverse frame arm.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |