US3836194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding chair
Assignee: Sunbeam Products Inc
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Filing: 1972-09-11
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Granted: 1974-09-17
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Expires: 1992-09-11
Abstract
Abstract A pair of tubular frame members pivotally join one another, enabling compact folding during non-use and into extended relation for use. A compliant material covers portions of the frame members, forming a sling back and seat readily conforming to the user. A pair of pivot plates affixed at opposite sides of the back frame members includes laterally extending shoulders. The seat frame member is free to rotate in a first direction, bringing the two frame members into substantial nesting registry with one another for the non-use or stacking condition, while rotation in the opposite direction brings portions of the frame member into contact with the laterally extending supporting shoulders to hold the two frame members in the seat configuration during use.
Inventors
- 👤 K Milette
- 👤 F Garavelli
- 👤 T Tolleson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:05
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/28; A47C4/42; A47C4/44; A47C4/48; A47C4/04; A47C4/18; A47C4/20; A47C4/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
312 words
A sling-type chair selectively foldable to a stacking mode and a chair mode, comprising: a one-piece tubular metal back frame having a pair of longitudinally extending side members and a pair of transverse end members, said transverse end members being substantially shorter than the side members and said side members being arcuately shaped about a transverse axis and one end member being arcuately shaped about a longitudinal axis with the concavity thereof facing in the same direction as that of the side members; a one-piece tubular metal seat frame having a pair of parallel spaced side members connected by end transverse members, said side members being continuously arcuately shaped about a transverse axis, and one of said end members being formed continuously arcuately about a longitudinal axis with the concavity thereof facing in the direction of convexity of the side members; plate means affixed to the outer surface of each back side member with portions of the plate means extending outwardly of the side members in the direction of concavity tHereof, said plate means having a shoulder extending outwardly at substantially 90* from the plate means, and said shoulder including curved portions which conformingly abut with the seat frame and extend along the tubular seat frame a distance equal to at least the tubular cross section dimension; pivot pin means interconnecting the side members of the seat frame member with that portion of the plate means extending outwardly from the back said frame member whereby the seat frame member can be swung about the pivot pin means in a first direction to abut with the shoulder in supporting relation and in the opposite direction for stacking where the two frame members are slightly spaced and generally parallel; and a covering of resilient form maintaining material received onto an end portion of each frame member forming the back and seat of the chair.
Claim 2
Dependent Claim
312 words
A sling-type chair selectively foldable to a stacking mode and a chair mode, comprising: a one-piece tubular metal back frame having a pair of longitudinally extending side members and a pair of transverse end members, said transverse end members being substantially shorter than the side members and said side members being arcuately shaped about a transverse axis and one end member being arcuately shaped about a longitudinal axis with the concavity thereof facing in the same direction as that of the side members; a one-piece tubular metal seat frame having a pair of parallel spaced side members connected by end transverse members, said side members being continuously arcuately shaped about a transverse axis, and one of said end members being formed continuously arcuately about a longitudinal axis with the concavity thereof facing in the direction of convexity of the side members; plate means affixed to the outer surface of each back side member with portions of the plate means extending outwardly of the side members in the direction of concavity tHereof, said plate means having a shoulder extending outwardly at substantially 90* from the plate means, and said shoulder including curved portions which conformingly abut with the seat frame and extend along the tubular seat frame a distance equal to at least the tubular cross section dimension; pivot pin means interconnecting the side members of the seat frame member with that portion of the plate means extending outwardly from the back said frame member whereby the seat frame member can be swung about the pivot pin means in a first direction to abut with the shoulder in supporting relation and in the opposite direction for stacking where the two frame members are slightly spaced and generally parallel; and a covering of resilient form maintaining material received onto an end portion of each frame member forming the back and seat of the chair.
Claim 3
Dependent Claim
34 words
A sling-type chair as in claim 1, wherein said seat frame is connected to the plate means via the pivot pin means at a point located forwardly from the general plane of back frame.
Claim 4
Dependent Claim
256 words
A sling-type chair selectively foldable to a stacking mode and a chair mode, comprising: a tubular metal back frame having a pair of longitudinally extending side members and a pair of transverse end members, said transverse end members being substantially shorter than the side members and said side members being arcuately shaped about a transverse axis; a tubular metal seat frame having a pair of parallel spaced side members connected by end transverse members, said side members being continuously arcuately shaped about a transverse axis; plate means affixed to the outer surface of each back side member with portions of the plate means extending outwardly of the side members in the direction of concavity thereof, said plate means having a shoulder extending outwardly at substantially 90* from the plate means, and said shoulder including curved portions which conformingly abut with the seat frame and extend along the tubular seat frame a distance equal to at least the tubular cross section dimension; pivot pin means interconnecting the side members of the seat frame member with that portion of the triangular plate extending outwardly from the back said frame member whereby the seat frame member can be swung about the pivot pin means in a first direction to abut with the shoulder in supporting relation and in the opposite direction for stacking where the two frame members are slightly spaced and generally parallel; and a covering of resilient form maintaining material received onto an end portion of each frame member forming the back and seat of the chair.
Claim 5
Dependent Claim
256 words
A sling-type chair selectively foldable to a stacking mode and a chair mode, comprising: a tubular metal back frame having a pair of longitudinally extending side members and a pair of transverse end members, said transverse end members being substantially shorter than the side members and said side members being arcuately shaped about a transverse axis; a tubular metal seat frame having a pair of parallel spaced side members connected by end transverse members, said side members being continuously arcuately shaped about a transverse axis; plate means affixed to the outer surface of each back side member with portions of the plate means extending outwardly of the side members in the direction of concavity thereof, said plate means having a shoulder extending outwardly at substantially 90* from the plate means, and said shoulder including curved portions which conformingly abut with the seat frame and extend along the tubular seat frame a distance equal to at least the tubular cross section dimension; pivot pin means interconnecting the side members of the seat frame member with that portion of the triangular plate extending outwardly from the back said frame member whereby the seat frame member can be swung about the pivot pin means in a first direction to abut with the shoulder in supporting relation and in the opposite direction for stacking where the two frame members are slightly spaced and generally parallel; and a covering of resilient form maintaining material received onto an end portion of each frame member forming the back and seat of the chair.
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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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |