Patent US4861300A successfully refreshed from Google Patents.
US4861300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pool flotation device
Assignee: Individual
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Filing: 1988-08-03
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Granted: 1989-08-29
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Expires: 2008-08-03
Abstract
Abstract A recreational flotation device for swimmers, includes a central body-supporting loop and two or more flotation pontoons. All parts are substantially cylindrical having a circular cross-section throughout their lengths. Other anatomically-shaped flotation members may be added to the loop, such as a head and cervical support pontoon. The body-supporting loop is flexible and affixed to the flotation device through apertures along their axes. This construction provides this device with extreme flexibility and adaptability to the different body positions of the swimmer.
Inventors
- 👤 Angelo F. Casagrande
- 👤 Rocco J. Casagrande
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:48
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
A personal flotation device for use in a swimming pool or other body of water, comprising: a. a shapeless body-supporting endless, freely flexible, buoyant loop having a circular cross-section, capable of easily conforming to the user's body, b. two or more cylindrical removable flotation pontoons freely movable about and encircling said body-supporting loop, said pontoons having a diameter substantially greater than the diameter of said body-supporting loop and being substantially more buoyant than said loop, and c. at least one, anatomically-shaped pontoon affixed to said body-supporting loop.
Claim 2
Dependent Claim
87 words
A personal flotation device for use in a swimming pool or other body of water, comprising: a. a shapeless body-supporting endless, freely flexible, buoyant loop having a circular cross-section, capable of easily conforming to the user's body, b. two or more cylindrical removable flotation pontoons freely movable about and encircling said body-supporting loop, said pontoons having a diameter substantially greater than the diameter of said body-supporting loop and being substantially more buoyant than said loop, and c. at least one, anatomically-shaped pontoon affixed to said body-supporting loop.
Claim 3
Dependent Claim
13 words
The personal flotation device of claim 1 wherein said body-supporting loop is hollow.
Claim 4
Dependent Claim
21 words
The personal flotation device of claim 2 further described in that said loop passes through an axial bore in each pontoon.
Claim 5
Dependent Claim
17 words
The personal flotation device of claim 3 consisting only of one loop and two or more pontoons.
Claim 6
Dependent Claim
24 words
The personal flotation device of claim 1 wherein said body-supporting loop is composed of a flexible floatable material, such as a closed-cell vinyl foam.
Claim 7
Dependent Claim
16 words
The personal flotation device of claim 1 further described in that said body-supporting loop is non-inflatable.
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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) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |