US3754758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical swing beam for amusement and exercise
Assignee: Individual
•
Filing: 1972-07-20
•
Granted: 1973-08-28
•
Expires: 1992-07-20
Abstract
Abstract A normally upstanding resilient structure for amusement and excercise of children or adults comprising a plurality of interconnected, vertically, aligned, elastically bendable plate sections arranged so that the faces of the plates thereof are generally non-coplanar, and having a rotatable top plate from which a handle is suspended for the user to perform the aforementioned activity. The structure is fixedly positioned at its base but is not secured thereabove so that the structure is free to perform a swaying movement when acted upon by the weight of a user grasping the handle.
Inventors
- 👤 R Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:16
CPC Classifications
A; A63; A63B; A63B9/00; A63B2208/00; A63B2208/12; A63B7/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
A flexible, normally upstanding device, sometimes referred to as a spring swing, for amusement and exercise of child and adult users comprising; a plurality of elastically bendable planar sections; securing means to connect said sections in end-to-end vertical alignment to form a generally upright spring beam with the corresponding faces of adjacent sections defining intersecting non-coplanar surfaces; handle means secured to and depending from the uppermost one of said sections, last said means adapted to be grasped by a user when the latter ascends said device to within reach of last said means, said spring beam being elastically deflectable from said normally upstanding position to a generally arc-like configuration by the action and weight or a user when grasping said handle means, and thereafter cause the user to be trajected by the beam in its reaction to return to its upright position; and means associated with the lowermost portion of said device to support the latter in its normally upstanding position and restrain the device from capsizing during maneuver by a user.
Claim 2
Dependent Claim
172 words
A flexible, normally upstanding device, sometimes referred to as a spring swing, for amusement and exercise of child and adult users comprising; a plurality of elastically bendable planar sections; securing means to connect said sections in end-to-end vertical alignment to form a generally upright spring beam with the corresponding faces of adjacent sections defining intersecting non-coplanar surfaces; handle means secured to and depending from the uppermost one of said sections, last said means adapted to be grasped by a user when the latter ascends said device to within reach of last said means, said spring beam being elastically deflectable from said normally upstanding position to a generally arc-like configuration by the action and weight or a user when grasping said handle means, and thereafter cause the user to be trajected by the beam in its reaction to return to its upright position; and means associated with the lowermost portion of said device to support the latter in its normally upstanding position and restrain the device from capsizing during maneuver by a user.
Claim 3
Dependent Claim
56 words
The device in accordance with claim 1 and wherein further each of said elastically bendable planar sections is shaped so that said spring beam comprises a vertical array of tapered sections each wider at the base than at the top with each successive sEction having a base narrower than the top of the section immediately therebelow.
Claim 4
Dependent Claim
32 words
The device in accordance with claim 1 and wherein further said securing means is designed to position adjacent ones of said sections with the corresponding face planes thereof normal to each other.
Claim 5
Dependent Claim
153 words
The device in accordance with claim 1 and wherein further said planar sections comprise: slotted sections, each of which has a closed end or terminus and an open end, said slotted sections located alternately in the end-to-end vertical arrangement thereof to form said spring beam, each of said slotted sections fabricated to provide a pair of longitudinal slots formed therethrough shaped to receive the confronting edges of adjacent ones of said solid sections, the open ends of said slots formed to have rounded corners designed to bear against the faces of adjacent sections housed within said slots when the latter plates are deflected during operation of said device; and wherein further said securing means comprises: clamp brackets mounted on said slotted sections proximate said slot termini; and clamp bolts to urge said brackets into frictional engagement with confronting ends of adjacent sections and to retain the latter in operative position within said slots.
Claim 6
Dependent Claim
92 words
The spring swing in accordance wit claim 1 and wherein said securing means connecting said uppermost section to said spring beam comprises: bracket means rotatably secured to the one of said sections immediately below said uppermost section to swivably mount said uppermost section to the next lower section, said bracket means axis of rotation parallel to and offset from the face of the next lower section to cause the face of said uppermost section to remain normal to the direction of travel of said spring beam when the latter trajects during operation.
Claim 7
Dependent Claim
40 words
The spring swing, in accordance with claim 1 and wherein further each of said planar sections is shaped to form a stepping surface for the feet of a user, and hand holds for use in ascending said spring swing beam.
References Cited (Backward Citations)
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US2949298A
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US3246893A
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US3250532A
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US3268223A
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |