US3673975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating platform
Assignee: Individual
•
Filing: 1970-01-26
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Granted: 1972-07-04
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Expires: 1990-01-26
Abstract
Abstract A floating platform including a plurality of air cells for supporting the platform is described. Each air cell is formed of a large, circular piece of a heavy gauge polyethylene type of material. The material is ''''pursed'''' and inverted so that the trapped air cannot escape through the opening remaining after the pursing operation. In addition, means are provided for adding air to the air cells when they contain an insufficient amount of air. The air cells are protected and maintained in position by a skirt that hangs downwardly from the outer edges from the platform. A building or other suitable structure is constructed on the platform. In addition, swingable stairs are provided for mounting the platform from the water level. Further a secondary polyethylene liner is located inside each of the air cells and is deployed if the primary air cell develops a leak.
Inventors
- 👤 Erwin S Strauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:08
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/02; B60V3/025; B63; B63B; B63B35/00; B63B35/44; B63B2035/4426; Y; Y02; Y02A; Y02A30/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
A floating platform suitable for use in the ocean comprising: a plurality of low, slightly above atmospheric, pressure primary air cells, each primary air cell being spherical in shape and formed of an air tight, light weight deformable material, such as polyethylene and the like, each primary air cell having a bottom opening substantially smaller than its diameter to allow water to enter the cell and reach a level adequate to ballast said floating platform; and a platform mounted on top of said plurality of primary air cells in a generally horizontal plane so as to be able to support a structure.
Claim 2
Dependent Claim
102 words
A floating platform suitable for use in the ocean comprising: a plurality of low, slightly above atmospheric, pressure primary air cells, each primary air cell being spherical in shape and formed of an air tight, light weight deformable material, such as polyethylene and the like, each primary air cell having a bottom opening substantially smaller than its diameter to allow water to enter the cell and reach a level adequate to ballast said floating platform; and a platform mounted on top of said plurality of primary air cells in a generally horizontal plane so as to be able to support a structure.
Claim 3
Dependent Claim
44 words
A floating platform suitable for use in the ocean as claimed in claim 1 wherein said spherically shaped primary air cells are approximately 50 feet in diameter prior to being compressed by the weight of the platform and the structure supported on the platform.
Claim 4
Dependent Claim
44 words
A floating platform suitable for use in the ocean as claimed in claim 1 wherein said spherically shaped primary air cells are approximately 50 feet in diameter prior to being compressed by the weight of the platform and the structure supported on the platform.
Claim 5
Dependent Claim
29 words
A floating platform suitable for use in the ocean as claimed in claim 2 including a deflated secondary air cell in each of said plurality of primary air cells.
Claim 6
Dependent Claim
67 words
A floating platform suitable for use in the ocean as claimed in claim 3 including pressure maintaining means attached to said platform and connected to said plurality of primary air cells so as to maintain the pressure in said plurality of primary air cells and to said secondary air cell to inflate a corresponding secondary air cell when one of said primary air cells developes a leak.
Claim 7
Dependent Claim
25 words
A floating platform suitable for use in the ocean as claimed in claim 4 including a skirt extending downwardly from each edge of said platform.
Claim 8
Dependent Claim
42 words
A floating platform suitable for use in the ocean as claimed in claim 5 including a stairway attached to said platform at its upper end and also including a dock attached to a lower end of said stairway at approximately water level.
Claim 9
Dependent Claim
42 words
A floating platform suitable for use in the ocean as claimed in claim 1 including a deflated secondary air cell in each of said plurality of primary air cells, said secondary air cells and said primary air cells being formed of polyethylene.
Claim 10
Dependent Claim
68 words
A floating platform suitable for use in the ocean as claimed in claim 7 including a pressure maintaining means attached to said platform and connected to said plurality of primary air cells so as to maintain the pressure in said plurality of primary air cells and to said secondary air cell to inflate a corresponding secondary air cell when one of said primary air cells developes a leak.
Claim 11
Dependent Claim
42 words
A floating platform suitable for use in the ocean as claimed in claim 8 wherein said spheres are four in number and are approximately 50 feet in diameter prior to being compressed by said platform and the structure supported on said platform.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |