US4067077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular waterbed
Assignee: Individual
•
Filing: 1975-09-25
•
Granted: 1978-01-10
•
Expires: 1995-09-25
Abstract
Abstract A self supporting circular waterbed comprising a circular inflatable bag installed within a soft endless flexible band. Pressure from within the inflated bag against the soft flexible band, stiffens and rigidifies the band which then functions as a conventional type frame with added advantages.
Inventors
- 👤 Fredrick R. Feretto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:42
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/085
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
90 words
A circular waterbed kit comprising a soft, endless, flexible band of material of minimal stretchability, unfoldable from a relaxed condition to a circle having a predetermined diameter, and a circular inflatable bag having a diameter in its uninflated condition exceeding that of said soft flexible band in its unfolded condition, whereby upon installing said bag, in its uninflated condition, within said flexible band and then inflating said bag, said band will confine said bag and cause said bag to stiffen said band in response to pressure developed in said bag.
Claim 2
Dependent Claim
90 words
A circular waterbed kit comprising a soft, endless, flexible band of material of minimal stretchability, unfoldable from a relaxed condition to a circle having a predetermined diameter, and a circular inflatable bag having a diameter in its uninflated condition exceeding that of said soft flexible band in its unfolded condition, whereby upon installing said bag, in its uninflated condition, within said flexible band and then inflating said bag, said band will confine said bag and cause said bag to stiffen said band in response to pressure developed in said bag.
Claim 3
Dependent Claim
80 words
A circular waterbed kit in accordance with claim 1, wherein a sheet of soft, flexible, waterproof material joins said soft endless flexible band substantially along the lower edge of said band, to form with said band, a catch basin in the event of loss of water from said inflatable bag when in use, and to preclude escape of said bag beneath the lower edge of said band during inflation of said bag and thereafter while said bed is in use.
Claim 4
Dependent Claim
28 words
A circular waterbed kit in accordance with claim 1, wherein said inflatable bag includes an upper and lower sheet of waterproof material joined together along a single seam.
Claim 5
Dependent Claim
27 words
A circular waterbed kit as in claim 2, wherein said inflatable bag includes an upper and lower sheet of waterproof material joined together along a single seam.
Claim 6
Dependent Claim
89 words
A circular waterbed comprising a soft endless flexible band of material of minimal stretchability, unfoldable from a relaxed condition to a circle having a predetermined diameter, and a circular inflatable bag of a diameter in its uninflated condition, exceeding that of said flexible band in its unfolded condition, said circular inflatable bag being installed within said band and inflated, whereby, because of said diameter relationship, internal pressures developed in said bag when inflated, will cause said bag to stiffen and rigidify said flexible band of material of minimal stretchability.
Claim 7
Dependent Claim
89 words
A circular waterbed comprising a soft endless flexible band of material of minimal stretchability, unfoldable from a relaxed condition to a circle having a predetermined diameter, and a circular inflatable bag of a diameter in its uninflated condition, exceeding that of said flexible band in its unfolded condition, said circular inflatable bag being installed within said band and inflated, whereby, because of said diameter relationship, internal pressures developed in said bag when inflated, will cause said bag to stiffen and rigidify said flexible band of material of minimal stretchability.
Claim 8
Dependent Claim
64 words
A circular waterbed in accordance with claim 5, wherein a sheet of soft, flexible, waterproof material joins with said soft, endless, flexible band, substantially along the lower edge of said band, to form a catch basin in the event of loss of water from said inflatable bag when in use, and to preclude escape of said bag beneath the lower edge of said band.
Claim 9
Dependent Claim
27 words
A circular waterbed in accordance with claim 5, wherein said inflatable bag includes an upper and lower sheet of waterproof material joined together along a single seam.
Claim 10
Dependent Claim
30 words
A circular waterbed in accordance with claim 5, wherein said circular inflatable bag is joined peripherally with said soft endless flexible band along substantially the lower edge of said band.
Claim 11
Independent Claim
92 words
A method of fabricating a substantially circular waterbed comprising forming an endless band of non-rigid material of minimal stretchability having a predetermined diameter when unfolded from a folded or collapsed condition to a circular form, forming a circular inflatable bag having a diameter in its uninflated condition, exceeding that of said band in its unfolded condition, installing said bag in its uninflated condition within said band of non-rigid material of minimum stretchability, and inflating said bag to substantially uniformly transit internally developed pressure to said band to stiffen and rigidify the same.
Claim 12
Independent Claim
92 words
A method of fabricating a substantially circular waterbed comprising forming an endless band of non-rigid material of minimal stretchability having a predetermined diameter when unfolded from a folded or collapsed condition to a circular form, forming a circular inflatable bag having a diameter in its uninflated condition, exceeding that of said band in its unfolded condition, installing said bag in its uninflated condition within said band of non-rigid material of minimum stretchability, and inflating said bag to substantially uniformly transit internally developed pressure to said band to stiffen and rigidify the same.
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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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |