Patent US3743280A successfully refreshed from Google Patents.
US3743280A
Expired / Lapsed
US
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Exercising device
Assignee: Rainbow Lifegard Products Inc
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Filing: 1971-10-20
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Granted: 1973-07-03
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Expires: 1991-10-20
Abstract
Abstract An exercising device includes a pair of elongate flexible cords of substantially equal length which are passed through a hole formed in a shuttle assembly. The cords are passed only once through the hole and are loosely journalled by the shuttle. A handle is connected to each end of each cord so that the shuttle is caused to move rapidly back and forth along the cords when the cords are held relatively taut between two people using the device, and first one person and then the other rapidly moves his handles apart from each other when the shuttle is adjacent him. The cords are of sufficient length and the shuttle is of sufficient weight that enough effort is required to propel the shuttle back and forth along the cords that the device functions effectively as an exercising device which also has significant entertainment value.
Inventors
- 👤 D Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:53
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/28; A63B67/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
113 words
An exercising device comprising a pair of cords of substantially equal length, separate means connected to each end of each cord adapting each of the cord ends to be separately held securely in a hand of a user of the device, a shuttle assembly having an axially straight, continuous hole completely therethrough which is greater in diameter than the sum of the diameters of the cords and through the entire length of which the cords are passed once only to be loosely journalled in and freely slidable through the hole and means located at opposite ends of said shuttle assembly to maintain said cords in substantially continuous parallel relation within said shuttle assembly.
Claim 2
Dependent Claim
113 words
An exercising device comprising a pair of cords of substantially equal length, separate means connected to each end of each cord adapting each of the cord ends to be separately held securely in a hand of a user of the device, a shuttle assembly having an axially straight, continuous hole completely therethrough which is greater in diameter than the sum of the diameters of the cords and through the entire length of which the cords are passed once only to be loosely journalled in and freely slidable through the hole and means located at opposite ends of said shuttle assembly to maintain said cords in substantially continuous parallel relation within said shuttle assembly.
Claim 3
Dependent Claim
19 words
Apparatus according to claim 1 wherein the hole passes substantially through the center of mass of the shuttle assembly.
Claim 4
Dependent Claim
27 words
Apparatus according to claim 1 wherein the hole is effectively defined through a material of the shuttle assembly which is abrasion resistant relative to the cord material.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 1 wherein the cords are impregnated with a lubricant material.
Claim 6
Dependent Claim
12 words
Apparatus according to claim 4 wherein the lubricant material is a wax.
Claim 7
Dependent Claim
33 words
Apparatus according to claim 1 wherein the means connected to each end of each cord comprises a handle element arranged to be gripped by a human hand and to receive a human foot.
Claim 8
Dependent Claim
41 words
Apparatus according to claim 1 wherein the means connected to each end of each cord comprises a handle member having a grip portion and a guard portion connected across the grip portion and to which the corresponding cord end is connected.
Claim 9
Dependent Claim
27 words
Apparatus according to claim 1 wherein the shuttle assembly is configured as a solid of revolution, and the hole is defined along the axis of symmetry thereof.
Claim 10
Dependent Claim
19 words
Apparatus according to claim 8 wherein the shuttle has a body which is fabricated of a relatively deformable material.
Claim 11
Dependent Claim
57 words
Apparatus according to claim 9 wherein said means at the opposite ends of said shuttle assembly includes an axially bored insert element received in the hole of the shuttle body at each end thereof for loosely journalling the cords, the bore of each insert having a diameter greater than the sum of the diameters of the cords.
Claim 12
Dependent Claim
29 words
Apparatus according to claim 10 wherein said inserts are fabricated of a material which is more resistant to abrasion by the cords than the material of the shuttle body.
Claim 13
Dependent Claim
34 words
Apparatus according to claim 10 wherein the cords have equal diameter, and the insert bore has a diameter on the order of at leAst about three times the diameter of one of the cords.
Claim 14
Dependent Claim
19 words
Apparatus according to claim 12 wherein each insert bore has a length which is substantially greater than its diameter.
Claim 15
Dependent Claim
20 words
Apparatus according to claim 13 wherein the length-to-diameter ratio of each insert bore is on the order of about five.
Claim 16
Dependent Claim
48 words
Apparatus according to claim 1 wherein the hole has a minimum diameter on the order of at least about three times the diameter of one of the cords, and the hole has a length which is at least about 10 times greater than the diameter of the hole.
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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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |