Patent US3898704A successfully refreshed from Google Patents.
US3898704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible seat-bed equipment
Assignee: McDonnell Douglas Corp
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Filing: 1974-07-18
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Granted: 1975-08-12
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Expires: 1994-07-18
Abstract
Abstract Convertible Seat-Bed Equipment for converting a reclining seat into an upper and lower bunk bed in an aircraft cabin. From seat position the bottom and back pivot up and legs pivotally mounted on the back drop down to support the horizontally extended bottom and back to comprise the top bunk. A fastener on the bottom attaches to the adjacent wall. The bottom bunk comprises pivotally mounted sections which extend with one end resting on a cross-member on the legs of the upper bunk. The midsection is supported and secured on wall-mounted brackets which were used to support and secure the bottom of the seat when the seat position is used.
Inventors
- 👤 William C Gallaher
- 👤 Jerome P Stephens
- 👤 Phillip J Testa
- 👤 James E Wein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:22
CPC Classifications
A; A47; A47C; A47C19/00; A47C19/20; A47C19/205; B; B64; B64D; B64D11/00; B64D11/06; B64D11/0639; B64D11/0641; B64D11/0691
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
100 words
A convertible seat-bed equipment for converting a reclining seat into a bed comprising: a seat back frame pivotally mounted at a pivot point near the top thereof to a wall; a seat bottom frame pivotally connected at the rear end thereof to said seat back frame; arcuate rails on said wall; rollers on said seat back frame engageable with said rails as said seat bottom frame is moved fore and aft to desired seat back frame inclination; said arcuate rails having a roller engaging surface, points thereon of which are of equal distance from said seat back frame pivot point.
Claim 2
Dependent Claim
100 words
A convertible seat-bed equipment for converting a reclining seat into a bed comprising: a seat back frame pivotally mounted at a pivot point near the top thereof to a wall; a seat bottom frame pivotally connected at the rear end thereof to said seat back frame; arcuate rails on said wall; rollers on said seat back frame engageable with said rails as said seat bottom frame is moved fore and aft to desired seat back frame inclination; said arcuate rails having a roller engaging surface, points thereon of which are of equal distance from said seat back frame pivot point.
Claim 3
Dependent Claim
47 words
A convertible seat-bed equipment as in claim 1, and legs pivotally mounted to the lower end of said seat back frame, said legs being foldable upwardly behind said seat back frame in seat position and extending downwardly to support said seat back frame horizontally in bed position.
Claim 4
Dependent Claim
37 words
A convertible seat-bed equipment as in claim 3 wherein said legs are pivotally attached to said seat back frame below the pivotal connection of said seat bottom frame with said seat back frame when in seat position.
Claim 5
Dependent Claim
26 words
A convertible seat-bed equipment as in claim 4, and latching means on said seat bottom frame for engagement with an end wall when in bed position.
Claim 6
Dependent Claim
43 words
A convertible seat-bed equipment as set forth in claim 1 wherein said rails have recesses therein and said seat back frame has a latching means engageable with selected recesses, thereby to adjust the angular inclination of said seat back frame in seat position.
Claim 7
Dependent Claim
105 words
A convertible seat-bed equipment as set forth in claim 1, and a pair of bunk bed half sections pivotally connected and folded together with their pivotal connection extending upwardly; one of said half sections being pivotally mounted on said wall; latching means on said one half section for engagement with said arcuate rails when folded out to bed position; legs maintaining said seat back frame substantially in horizontal position when converted into a top bunk bed; a cross-member on said legs to receive and support the other of said half sections in substantially horizontal position when folded out for use as a lower bunk bed.
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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |