US3711151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding furniture construction
Assignee: ETOWAH Mfg CO Inc
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Filing: 1970-10-22
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Granted: 1973-01-16
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Expires: 1990-10-22
Abstract
Abstract An all metal folding furniture construction having front and rear sets of pivotally connected cross legs including a jointed locking bracket connecting the cross members extending between each pair of aligned front and rear legs. The jointed bracket includes a pair of U-shaped links pivoted to each other at one end and to the cross members at their other ends. Abutment surfaces are provided to lock the rotational position of the bracket when the joined ends of the links pass below the line joining the pivots at the cross members. The chair includes a side rail and an overlying runner pivoted thereto between which the fabric seat passes. The hinges connecting the rails and runners are spaced further apart than the depth of the seat and a pair of co-operating retaining flanges hold the welt and core of the seat in place regardless of the pivotal position of the side rail and runner. The side rail also defines an anvil spaced inwardly from the retaining flange to support the seat and in co-operation with the clamping flange on the runner, serves to selectively clamp the seat in position. The stool includes a side rail having a curved support surface to support the seat adjacent the welt and core and a key hole slot which passes along the length thereof to selectively retain the welt and core of the seat therein.
Inventors
- 👤 H Upton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:35
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/28; A47C4/283
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
228 words
A folding chair construction including two pairs of pivotally connected legs, a side rail connecting the upper ends of each pair of said legs, an arm assembly for each side rail including a runner and a rear post, a back rest detachably connecting said rear posts to maintain said chair in a set up condition, each of said side rails including an upstanding first retaining flange along the outboard edge thereof and an upstanding first hinge ear at the forward and rear ends thereof, each of said runners including a depending second retaining flange along the outboard edge thereof and a depending second hinge ear at the forward and rear ends thereof, said first and second hinge ears defining aligned apertures therethrough, a pivot pin received through each set of said aligned apertures in said hinge ears pivotally connecting said side rails to said runners, a flexible seat slidably received between said first and second retaining flanges and including a looped welt at opposite ends thereof, and a core member slidably received in each of said welts, said welts with said core member therein having a total diameter greater than the maximum opening defined between said first and second retaining flanges to prevent passage of said welts with said core members therein between said first and second retaining flanges regardless of the relative pivotal position of said flanges.
Claim 2
Dependent Claim
228 words
A folding chair construction including two pairs of pivotally connected legs, a side rail connecting the upper ends of each pair of said legs, an arm assembly for each side rail including a runner and a rear post, a back rest detachably connecting said rear posts to maintain said chair in a set up condition, each of said side rails including an upstanding first retaining flange along the outboard edge thereof and an upstanding first hinge ear at the forward and rear ends thereof, each of said runners including a depending second retaining flange along the outboard edge thereof and a depending second hinge ear at the forward and rear ends thereof, said first and second hinge ears defining aligned apertures therethrough, a pivot pin received through each set of said aligned apertures in said hinge ears pivotally connecting said side rails to said runners, a flexible seat slidably received between said first and second retaining flanges and including a looped welt at opposite ends thereof, and a core member slidably received in each of said welts, said welts with said core member therein having a total diameter greater than the maximum opening defined between said first and second retaining flanges to prevent passage of said welts with said core members therein between said first and second retaining flanges regardless of the relative pivotal position of said flanges.
Claim 3
Dependent Claim
59 words
The folding chair construction of claim 1 wherein said first and second hinge ears are located forwardly and rearwardly of said first and second retaining flanges and define an opening therebetween greater than the length of said core members for said core member and said seat to pass therebetween to be retained by said first and second retaining flanges.
Claim 4
Dependent Claim
60 words
The folding chair construction of claim 2 wherein said side rails each further includes an upstanding anvil along the inboard edge thereof and wherein said runners each further include a depending clamping flange along the inboard edge thereof adapted to overlie said anvil when said side rail and said runner are pivoted toward each other to clamp said seat therebetween.
Claim 5
Dependent Claim
214 words
A folding chair construction including two pairs of pivotally connected legs, a side rail connecting the upper ends of each pair of said legs, an arm assembly for each side rail including a runner and a rear post, holding means connecting said rear posts to maintain said chair in a set up condition, each of said side rails including an upstanding first retaining flange along the outboard edge thereof and an upstanding first hinge ear at the forward and rear ends thereof, each of said runners including a depending second retaining flange along the outboard edge thereof and a depending second hinge ear at the forward and rear ends thereof, said first and second hinge ears defining aligned apertures in said hinge ears pivotally connecting said side rails to said runners, a flexible seat slidably received between said first and second retaining flanges and including a looped welt at opposite ends thereof, and a core member slidably received in each of said Welts, said welts with said core member therein having a total diameter greater than the maximum opening defined between said first and second retaining flanges to prevent passage of said welts with said core members therein between said first and second retaining flanges regardless of the relative pivotal position of said flanges.
Claim 6
Dependent Claim
214 words
A folding chair construction including two pairs of pivotally connected legs, a side rail connecting the upper ends of each pair of said legs, an arm assembly for each side rail including a runner and a rear post, holding means connecting said rear posts to maintain said chair in a set up condition, each of said side rails including an upstanding first retaining flange along the outboard edge thereof and an upstanding first hinge ear at the forward and rear ends thereof, each of said runners including a depending second retaining flange along the outboard edge thereof and a depending second hinge ear at the forward and rear ends thereof, said first and second hinge ears defining aligned apertures in said hinge ears pivotally connecting said side rails to said runners, a flexible seat slidably received between said first and second retaining flanges and including a looped welt at opposite ends thereof, and a core member slidably received in each of said Welts, said welts with said core member therein having a total diameter greater than the maximum opening defined between said first and second retaining flanges to prevent passage of said welts with said core members therein between said first and second retaining flanges regardless of the relative pivotal position of said flanges.
Claim 7
Dependent Claim
59 words
The folding chair construction of claim 4 wherein said first and second hinge ears are located forwardly and rearwardly of said first and second retaining flanges and define an opening therebetween greater than the length of said core members for said core member and said seat to pass therebetween to be retained by said first and second retaining flanges.
Claim 8
Dependent Claim
60 words
The folding chair construction of claim 5 wherein said side rails each further includes an upstanding anvil along the inboard edge thereof and wherein said runners each further include a depending clamping flange along the inboard edge thereof adapted to overlie said anvil when said side rail and said runner are pivoted toward each other to clamp said seat therebetween.
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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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |