US4696516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contoured aircraft and car seat
Assignee: Dae Ah Human Engineering Inc
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Filing: 1986-10-03
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Granted: 1987-09-29
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Expires: 2006-10-03
Abstract
Abstract A contoured seat for airplanes and automobiles comprising a bottom portion and a back portion, both supported by a basic frame support. The bottom portion comprises a bottom cushion and a bottom support. The cusion has a front edge, two thigh portions, a center ridge, a fundament section, two side portions, and a rear fundament section, all conforming to the passenger's shape. Preferably, the cushion also contains a plurality of identations. The thigh portions and the fundament section are depressed below the surrounding surfaces. The back portion, which surrounds the frame support, has two lower side portions, a lower central plane portion, a lower middle central portion, and an upper middle central portion. The side portions extend to support the hip. The lower central plane portion extends to support the user's extreme lower back as does the upper lower central plane portion. The lower middle central plane portion is concave and the upper middle central section is convex to provide a form fitting support for the user's vertebral column. The support itself is contoured and preferable contains a plurality of holes. Between the support and the back portion in the area of the upper lower central plane portion is preferably placed memory material to provide further support and comfort.
Inventors
- 👤 Hee-Sung Yeum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:31
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/06; B64D11/0647; A; A47; A47C; A47C7/00; A47C7/02; A47C7/029; A47C7/18; A47C7/185; A47C7/36; A47C7/40; A47C7/46; B60; B60N; B60N2/00; B60N2/64; B60N2/646; B64D11/0639; B64D11/0642; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
412 words
A contoured seat, comprising: a bottom portion having a bottom cushion disposed on top of a bottom support and attached to a basic frame, said bottom cushion comprising urethane foam having a plurality of indentations and having a curved front edge, rear edge and side edges, a downwardly sloping center ridge extending perpendicular to said front edge and extending from, at its highest point, the center of said front edge to, at its lowest point, halfway across said bottom portion, an indented fundament section of semielliptical shape having an open end, which section receives said lowest point of said center ridge generally at the center of its open end, and a rear portion formed between said rear edge and said fundament section, and thigh portions which are surrounded by side portions that adjoin said side edges and are separated by said center ridge, which thigh portions are indented and extend from said front edge into said fundament section below said surrounding rear and side portions to provide a receiving area in which a person comfortably sits; a back portion, supported by said basic frame and a plastic frame attached thereto, said back portion having a lower edge, top edge and side edges, said lower edge being adjustably attached to said rear edge of said bottom portion, said back portion being divided by a central plane extending from the center of said lower edge to the center of said top edge, where said central plane has a first central plane portion adjoining said bottom portion and extending slightly outwardly to support the person's extreme lower back area, a second central plane portion extending outwardly in the lordotic direction, a third central plane portion extending inwardly in the kyphotic direction, and a fourth central plane portion extending outwardly to meet the upper back in the area between the shoulder blades, said back portion further having two lower side portions symmetrically disposed about said first central plane portion to support the body's hip area, two through portions symmetrically disposed about said second and third central plane portions, and two thoracic portions symmetrically disposed about said fourth central plane portion to support the shoulder blades, wherein between said back portion and said basic frame is disposed a memory material support, which extends between said side edges of said back portion and from said first central plane portion to said third central portion, so as to conform to the lower back of said person using said seat.
Claim 2
Dependent Claim
412 words
A contoured seat, comprising: a bottom portion having a bottom cushion disposed on top of a bottom support and attached to a basic frame, said bottom cushion comprising urethane foam having a plurality of indentations and having a curved front edge, rear edge and side edges, a downwardly sloping center ridge extending perpendicular to said front edge and extending from, at its highest point, the center of said front edge to, at its lowest point, halfway across said bottom portion, an indented fundament section of semielliptical shape having an open end, which section receives said lowest point of said center ridge generally at the center of its open end, and a rear portion formed between said rear edge and said fundament section, and thigh portions which are surrounded by side portions that adjoin said side edges and are separated by said center ridge, which thigh portions are indented and extend from said front edge into said fundament section below said surrounding rear and side portions to provide a receiving area in which a person comfortably sits; a back portion, supported by said basic frame and a plastic frame attached thereto, said back portion having a lower edge, top edge and side edges, said lower edge being adjustably attached to said rear edge of said bottom portion, said back portion being divided by a central plane extending from the center of said lower edge to the center of said top edge, where said central plane has a first central plane portion adjoining said bottom portion and extending slightly outwardly to support the person's extreme lower back area, a second central plane portion extending outwardly in the lordotic direction, a third central plane portion extending inwardly in the kyphotic direction, and a fourth central plane portion extending outwardly to meet the upper back in the area between the shoulder blades, said back portion further having two lower side portions symmetrically disposed about said first central plane portion to support the body's hip area, two through portions symmetrically disposed about said second and third central plane portions, and two thoracic portions symmetrically disposed about said fourth central plane portion to support the shoulder blades, wherein between said back portion and said basic frame is disposed a memory material support, which extends between said side edges of said back portion and from said first central plane portion to said third central portion, so as to conform to the lower back of said person using said seat.
Claim 3
Dependent Claim
17 words
The contoured seat of claim 1 further comprising a neck rest adjustably attached to said back portion.
Claim 4
Dependent Claim
37 words
The contoured seat of claim 2 wherein said back portion further comprises a head section disposed above said neck rest, said head section being indented to conform to the structure and natural position of a person's head.
Claim 5
Dependent Claim
99 words
The contoured seat of claim 1 further comprising: a head and neck rest, having an upper edge, a lower edge, and side edges, said rest being removably and adjustably attached to an area above said fourth central portion of said back portion, and said rest having a centrally located indentation surrounded by side portions and upper and lower portions which respectively adjoin said edges, where said side, upper and lower portions extend outwardly and gradually slope downwards towards said indentation, and said upper and lower edges bend slightly inwards towards said indentation at approximately the center of said edges.
Claim 6
Dependent Claim
26 words
The contoured seat of claim 4 wherein said head and neck rest is removably and adjustably attached to said back portion by hook and loop fasteners.
Claim 7
Dependent Claim
25 words
The contoured seat of claim 1 wherein said indentations are inverted-U shaped, approximately 2 cm in diameter, 2.5 cm in depth and 5 cm apart.
Claim 8
Dependent Claim
22 words
The contoured seat of claim 1 wherein said bottom support comprises urethane foam, having a hard portion located below said fundament section.
Claim 9
Dependent Claim
13 words
The contoured seat of claim 1 wherein said back portion comprises urethane foam.
Claim 10
Dependent Claim
14 words
The contoured seat of claim 8 wherein said basic frame comprises aluminum sheet material.
Claim 11
Dependent Claim
19 words
The contoured seat of claim 9 wherein said aluminum sheet is disposed approximately 3 cm below said back portion.
Claim 12
Dependent Claim
15 words
The contoured seat of claim 10 wherein said aluminum sheet contains a plurality of holes.
Claim 13
Dependent Claim
16 words
The contoured seat of claim 11 wherein said plurality of holes are of 0.5 cm radius.
Claim 14
Dependent Claim
19 words
The contoured seat of claim 12 wherein said aluminum sheet is contoured in the shape of said back portion.
Claim 15
Dependent Claim
28 words
The contoured seat of claim 12 further comprising memory material disposed between said back portion and said aluminum sheet in the area of said second central plane portion.
Claim 16
Dependent Claim
28 words
The contoured seat of claim 14 wherein said aluminum sheet is contoured in the shape of said back portion in the area above said second central plane portion.
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) | 1990-09-28 | 1991-03-30 | 1991-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-28 | 1995-03-30 | 1995-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-28 | 1999-03-30 | 1999-09-29 | $7700.00 | Window Closed / Lapsed |