US3955224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat construction
Assignee: D S C IND Inc
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Filing: 1975-03-05
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Granted: 1976-05-11
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Expires: 1995-03-05
Abstract
Abstract A cushioned seat structure comprising a resiliently compressible foam cushion having a pair of channel formations opening through the bottom face of the cushion and extending upward for a distance into the cushion body but terminating short of the cushion top face, the channels extending widthwise of the cushion along lines parallel to and spaced rearward from the cushion front face, one channel being spaced about midway back and the other channel being spaced roughly three quarters rearward. Underlying the cushion is a rigid support platform having a pair of slots therethrough aligned with the cushion channels where they open through the cushion bottom face, the slots being substantially congruent with the channels openings. The cushion lower surface is adhesively secured to the platform upper surface to prevent relative slippage in order to keep the cushion material out of the slots. A depending skirt portion of the cushion surrounds and cushions the side edges of the platform.
Inventors
- 👤 Milton H. Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:19
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; A47C7/185; A47C31/00; A47C31/02; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
201 words
A cushioned seat structure comprising in combination, a. a resiliently compressible foam cushion having top, bottom, front, rear and side faces, and at least one cavity opening through the bottom face of said cushion and extending upward therefrom for a distance into the body of said cushion but terminating short of said top face, said at least one cavity extending widthwise of said cushion along a line substantially parallel to the said cushion front face and spaced farther therefrom than from the said cushion rear face, and b. an underlying cushion support platform having upper and lower surfaces with said cushion bottom face being seated flatwise upon said support platform upper surface, and at least one aperture completely through said support platform from the said upper surface to the said lower surface, said at least one aperture being aligned with said at least one cushion cavity where it opens through the said cushion bottom face and being of sufficient cross sectional area to permit free movement of air therethrough, whereby, seating pressure upon the top face of said cushion causes exhaustion of air in said cushion at least one cavity through the said at least one aperture in said support platform.
Claim 2
Dependent Claim
201 words
A cushioned seat structure comprising in combination, a. a resiliently compressible foam cushion having top, bottom, front, rear and side faces, and at least one cavity opening through the bottom face of said cushion and extending upward therefrom for a distance into the body of said cushion but terminating short of said top face, said at least one cavity extending widthwise of said cushion along a line substantially parallel to the said cushion front face and spaced farther therefrom than from the said cushion rear face, and b. an underlying cushion support platform having upper and lower surfaces with said cushion bottom face being seated flatwise upon said support platform upper surface, and at least one aperture completely through said support platform from the said upper surface to the said lower surface, said at least one aperture being aligned with said at least one cushion cavity where it opens through the said cushion bottom face and being of sufficient cross sectional area to permit free movement of air therethrough, whereby, seating pressure upon the top face of said cushion causes exhaustion of air in said cushion at least one cavity through the said at least one aperture in said support platform.
Claim 3
Dependent Claim
54 words
A seat structure as defined in claim 1 further including antislip means effective to prevent relative movement between said cushion bottom face and said support platform upper surface to thereby prevent movement of the cushion material adjacent to said at least one cushion cavity from intruding into said support platform at least one aperture.
Claim 4
Dependent Claim
66 words
A seat structure as defined in claim 1 further including an adhesive bond between said cushion bottom face and said support platform upper surface effective to prevent relative movement between said cushion bottom face and said support platform upper surface to thereby prevent movement of the cushion material adjacent to said at least one cushion cavity from intruding into said support platform at least one aperture.
Claim 5
Dependent Claim
33 words
A seat structure as defined in claim 1 wherein said at least one aperture is substantially congruent with said at least one cushion cavity where it opens through the said cushion bottom face.
Claim 6
Dependent Claim
34 words
A seat structure as defined in claim 1 wherein said at least one cushion cavity comprises an open channel extending widthwise of said cushion but terminating short of each of said cushion side faces.
Claim 7
Dependent Claim
59 words
A seat structure as defined in claim 1 wherein said at least one cushion cavity comprises an open channel extending widthwise of said cushion but terminating short of each of said cushion side faces, and wherein said at least one aperture comprises a slot substantially congruent with said open channel where it opens through the said cushion bottom face.
Claim 8
Dependent Claim
118 words
A seat structure as defined in claim 1 wherein said at least one cushion cavity comprises an open channel extending widthwise of said cushion but terminating short of each of said cushion side faces, and wherein said at least one aperture comprises a slot substantially congruent with said open channel where it opens through the said cushion bottom face, and further including an adhesive bond between said cushion bottom face and said support platform upper surface effective to prevent relative movement between said cushion bottom face and said support platform upper surface to thereby prevent movement of the cushion material adjacent to said at least one cushion cavity from intruding into said support platform at least one aperture.
Claim 9
Dependent Claim
89 words
A seat structure as defined in claim 1 wherein said at least one cavity comprises two independent cavities each opening through the bottom face of said cushion and extending upwardly therefrom for a distance into the body of said cushion but terminating short of said top face, said two independent cavities both extending widthwise of said cushion along lines substantially parallel to the said cushion front face, at least one of said two independent cavities being spaced farther from said cushion front face than from said cushion rear face.
Claim 10
Dependent Claim
108 words
A seat structure as defined in claim 1 wherein said at least one cavity comprises two independent cavities each open through the bottom face of said cushion and extending upwardly therefrom for a distance into the body of said cushion but terminating short of said top face, said two independent cavities both extending widthwise of said cushion along lines substantially parallel to the said cushion front face, at least one of said two independent cavities being spaced farther from said cushion front face than from said cushion rear face, and the other of said cavities being spaced approximately at the midpoint between said cushion front and rear faces.
Claim 11
Dependent Claim
31 words
A seat structure as defined in claim 5 wherein the centerline of said widthwise extending cavity parallel to said cushion front face is spaced substantially 141/2 inches from said front face.
Claim 12
Dependent Claim
66 words
A seat structure as defined in claim 5 further including an adhesive bond between said cushion bottom face and said support platform upper surface effective to prevent relative movement between said cushion bottom face and said support platform upper surface to thereby prevent movement of the cushion material adjacent to said at least one cushion cavity from intruding into said support platform at least one aperture.
Claim 13
Dependent Claim
32 words
A seat structure as defined in claim 8 wherein said two independent cavities comprise two open channels extending widthwise of said cushion but terminating short of each of said cushion side faces.
Claim 14
Dependent Claim
61 words
A seat structure as defined in claim 8 wherein said two independent cavities comprise two open channels extending widthwise of said cushion but terminating short of each of said cushion side faces, and wherein said at least one aperture comprises two independent slots respectively substantially congruent with said two open channels where the latter open through the said cushion bottom face.
Claim 15
Dependent Claim
61 words
A seat structure as defined in claim 9 wherein said two independent cavities comprise two open channels extending widthwise of said cushion but terminating short of each of said cushion side faces, and wherein said at least one aperture comprises two independent slots respectively substantially congruent with said two open channels where the latter open through the said cushion bottom face.
Claim 16
Dependent Claim
33 words
A seat structure as defined in claim 14 wherein the centerline of one of said widthwise extending channels parallel to said cushion front face is spaced substantially 141/2 inches from said front face.
Claim 17
Dependent Claim
54 words
A seat structure as defined in claim 14 wherein the centerline of one of said widthwise extending channels parallel to said cushion front face is spaced substantially 141/2 inches from said front face, and wherein the centerline of the other of said widthwise extending channels is spaced substantially 91/2 inches from said front face.
Claim 18
Dependent Claim
59 words
A seat structure as defined in claim 16 further including an adhesive bond between said cushion bottom face and said support platform upper surface effective to prevent relative movement between said cushion bottom face and said support platform upper surface to thereby prevent movement of the cushion material adjacent to said channels from intruding into said support platform slots.
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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |