Patent US4399576A successfully refreshed from Google Patents.
US4399576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flotation mattress incorporating drain/fill valve
Assignee: Dreamwell Ltd
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Filing: 1981-02-17
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Granted: 1983-08-23
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Expires: 2001-02-17
Abstract
Abstract A flotation mattress is provided including a retractable valve for draining and filling said mattress. The valve includes an elongated neck portion including at least one port which may be extended from the mattress to facilitate the draining and filling operations. The valve may similarly be retracted within the mattress for storage. Upon retraction, the elongated neck portion defines a well a collapsible hose adapted to be secured to said at least one port for draining and filling the mattress may be stored. A cover is provided to protect the valve when recessed in the mattress.
Inventors
- 👤 Milton A. Callaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:57
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/085; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/6851; Y10T137/6918; Y10T137/6962
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
A flotation mattress comprising valve means retractably secured thereto, said valve means including a resilient neck portion and a valve portion secured to said neck portion, said valve portion including a vertical top port and a horizontal side port, said neck portion and said valve portion defining an annular containment well beneath the surface of said flotation mattress, a collapsible hose wrapped about said valve portion and within said containment well, said hose being connected to said horizontal side port and wrapped about said valve portion above said side port.
Claim 2
Dependent Claim
90 words
A flotation mattress comprising valve means retractably secured thereto, said valve means including a resilient neck portion and a valve portion secured to said neck portion, said valve portion including a vertical top port and a horizontal side port, said neck portion and said valve portion defining an annular containment well beneath the surface of said flotation mattress, a collapsible hose wrapped about said valve portion and within said containment well, said hose being connected to said horizontal side port and wrapped about said valve portion above said side port.
Claim 3
Dependent Claim
16 words
A flotation mattress as defined in claim 1 including a cap secured to said top port.
Claim 4
Dependent Claim
21 words
A flotation mattress as defined in claim 1 including a cover secured thereto which covers said valve means and containment well.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |