US3704911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knockdown chair
Assignee: Individual
•
Filing: 1971-03-18
•
Granted: 1972-12-05
•
Expires: 1991-03-18
Abstract
Abstract A seating structure including readily assembled and disassembled components with each of the components to be upholstered provided with upholstered portions consisting of suitably cushioned upholstery covers secured on the upholstered portions by means of coacting ''''Velcro'''' strips completely hidden from view when the components of the seating structure are in assembled relation. The components of the seating structure include a base supported horizontal seat cushion assembly, an upstanding backrest assembly and a pair of upstanding opposite side arm assemblies. The backrest and cushion assemblies include coacting latching means for releasably latching the backrest to the cushion assembly upon movement of the former toward the latter along a predetermined path to a position operably juxtaposition said cushion assembly and the cushion and side arm assemblies include coacting support means for stationarily releasably supporting the arm assemblies from the cushion assembly in operative juxtaposition relative thereto. In addition, the arm assemblies and the backrest assembly include coacting structure releasably anchoring a position of the backrest assembly spaced above its lower end to the rear end portions of the arm assemblies against rearward movement relative to the latter. A first form of the invention further includes coacting locking structure carried by the seat cushion assembly, the arm assemblies and the backrest assembly for locking the arm assemblies in their supported positions juxtaposition the seat cushion in response to movement of the backrest portion toward its supported position operably juxtaposition the seat cushion assembly.
Inventors
- 👤 Joseph Milakovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:35
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/02; A47C4/028; A47C27/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
A seating structure including a base supported horizontal seat cushion assembly, an upstanding backrest assembly and a pair of upstanding opposite side arm assemblies, said backrest and cushion assemblies including coacting latching means for releasably latching said backrest to said cushion upon movement of the former toward the latter along a predetermined path to a position operably juxtaposition said cushion, said cushion and side arm assemblies including coacting support means operable to stationarily releasably support said arm assemblies from said cushion assembly in operative juxtaposition relative thereto and including locking means coacting with said backrest to lock said arm assemblies in said operative juxtaposition relative to said seat cushion assembly in response to movement of said backrest to said position operably juxtaposition said seat cushion assembly.
Claim 2
Dependent Claim
126 words
A seating structure including a base supported horizontal seat cushion assembly, an upstanding backrest assembly and a pair of upstanding opposite side arm assemblies, said backrest and cushion assemblies including coacting latching means for releasably latching said backrest to said cushion upon movement of the former toward the latter along a predetermined path to a position operably juxtaposition said cushion, said cushion and side arm assemblies including coacting support means operable to stationarily releasably support said arm assemblies from said cushion assembly in operative juxtaposition relative thereto and including locking means coacting with said backrest to lock said arm assemblies in said operative juxtaposition relative to said seat cushion assembly in response to movement of said backrest to said position operably juxtaposition said seat cushion assembly.
Claim 3
Dependent Claim
36 words
The combination of claim 1 wherein said predetermined path comprises an upstanding path downwardly along which said backrest assembly is movable from above the rear portion of said cushion assembly into juxtaposition said seat cushion assembly.
Claim 4
Dependent Claim
93 words
The combination of claim 2 wherein said locking means includes vertically shiftable actuator means projecting inwardly of the opposing inner surface portions of the upper rear portions of said opposite side arm assemblies, said locking means further including laterally outwardly projecting abutment portions carried by the opposite side marginal portions of said backrest assembly abuttingly engageable with said actuator means to urge the latter downwardly toward active positions as said seat back assembly is downwardly shifted along said path to operative juxtaposition with the rear marginal edge portion of said seat cushion assembly.
Claim 5
Dependent Claim
91 words
The combination of claim 3 wherein said actuator means are guidingly supported from said arm assemblies for movement along upstanding paths and said abutment portions include downwardly opening upstanding recesses in which said abutment portions are receivable upon movement of s aid backrest assembly into operative juxtaposition with said seat cushion assembly and said actuator means and said downwardly opening recesses in said abutment portions thereby lock the portions of said seat back assembly from which said abutment portions are supported against front to rear shifting relative to said arm assemblies.
Claim 6
Dependent Claim
209 words
In combination, a seating structure including a seat cushion assembly, an upstanding backrest assembly, and a pair of opposite side arm assemblies, first means removably supporting the lower marginal portion of said backrest assembly from the rear marginal portion of said seat cushion assembly in operative juxtaposition relative thereto, second means removably supporting said arm assemblies from said cushion in operative juxtaposition relative thereto projecting upwardly from the opposite sides of said seat cushion assembly, said backrest assembly and the upper rear end portions of said arm assemblies including readily releasable means engageable with each other in response to operative juxtaposition of said backrest and arm assemblies relative to said seat cushion assembly locking the opposite sides of the upper portion of said backrest assembly against front to rear shifting relative to the rear portions of said arm assemblies, said arm assemblies and the opposite side marginal portions of said seat cushion assembly including side-by-side abutting structural members, said second means comprising fasteners removably secured through said abutting structural members at points spaced generally horizontally apart in a front to rear extending direction on each side of said seating structure, said fasteners comprising threaded shank portions having over center cam type toggle heads pivotally supported from corresponding ends thereof.
Claim 7
Dependent Claim
209 words
In combination, a seating structure including a seat cushion assembly, an upstanding backrest assembly, and a pair of opposite side arm assemblies, first means removably supporting the lower marginal portion of said backrest assembly from the rear marginal portion of said seat cushion assembly in operative juxtaposition relative thereto, second means removably supporting said arm assemblies from said cushion in operative juxtaposition relative thereto projecting upwardly from the opposite sides of said seat cushion assembly, said backrest assembly and the upper rear end portions of said arm assemblies including readily releasable means engageable with each other in response to operative juxtaposition of said backrest and arm assemblies relative to said seat cushion assembly locking the opposite sides of the upper portion of said backrest assembly against front to rear shifting relative to the rear portions of said arm assemblies, said arm assemblies and the opposite side marginal portions of said seat cushion assembly including side-by-side abutting structural members, said second means comprising fasteners removably secured through said abutting structural members at points spaced generally horizontally apart in a front to rear extending direction on each side of said seating structure, said fasteners comprising threaded shank portions having over center cam type toggle heads pivotally supported from corresponding ends thereof.
Claim 8
Dependent Claim
168 words
In combination, a seating structure including a seat cushion assembly, an upstanding backrest assembly and a pair of opposite side upstanding arm assemblies, means removably supporting the lower marginal portions of said arm rest assemblies to the opposite side marginal portions of said seat cushion assembly, a shank type projection projecting downwardly from the center lower marginal portion of said backrest assembly, the rear marginal portion of said seat cushion assembly including means defining a central upwardly opening socket in which said shank portion is downwardly receivable, the upstanding arm assemblies including rear upstanding marginal areas and the opposite sides of said backrest assembly including upstanding marginal areas, the upstanding marginal areas of said arm assemblies and seat back assembly including coacting slotted brackets and outwardly pRojecting pins seatable in the slots formed in said brackets upon downward movement of said backrest assembly to a position with said shank type projection seated in said socket, the slots in said brackets being vertically elongated and opening in vertical directions.
Claim 9
Dependent Claim
168 words
In combination, a seating structure including a seat cushion assembly, an upstanding backrest assembly and a pair of opposite side upstanding arm assemblies, means removably supporting the lower marginal portions of said arm rest assemblies to the opposite side marginal portions of said seat cushion assembly, a shank type projection projecting downwardly from the center lower marginal portion of said backrest assembly, the rear marginal portion of said seat cushion assembly including means defining a central upwardly opening socket in which said shank portion is downwardly receivable, the upstanding arm assemblies including rear upstanding marginal areas and the opposite sides of said backrest assembly including upstanding marginal areas, the upstanding marginal areas of said arm assemblies and seat back assembly including coacting slotted brackets and outwardly pRojecting pins seatable in the slots formed in said brackets upon downward movement of said backrest assembly to a position with said shank type projection seated in said socket, the slots in said brackets being vertically elongated and opening in vertical directions.
Claim 10
Dependent Claim
15 words
The combination of claim 6 wherein said slotted brackets are carried by said backrest assembly.
References Cited (Backward Citations)
US3171690A
Cited
US3393011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |