US4666748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articles of furniture
Assignee: Individual
•
Filing: 1985-11-25
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Granted: 1987-05-19
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Expires: 2005-11-25
Abstract
Abstract An article of furniture comprises a plurality of plastic sections each curved at its opposite ends according to the same radius of curvature, with each section having notches at its opposite ends of a length twice that of the radius of curvature. Fastener means are receivable in the notches of adjacent sections and couple the sections together. Several embodiments are described having different fastener means, including one arrangement wherein they are separate pin and link members, a second arrangement wherein they are pins inserted into sockets integrally formed with the plastic sections, and two further arrangements wherein they are pins integrally formed with the plastic sections and receive separate link members.
Inventors
- 👤 Isaac Rinkewich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:14
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/024; A47C19/00; A47C19/12; A47C19/122; A47C7/36; A47C7/40; A47C7/405; F; F16; F16B; F16B12/00; F16B12/10; F16B12/12; F16B12/24; Y; Y10; Y10T; Y10T428/00; Y10T428/17; Y10T428/24; Y10T428/2419; Y10T428/24198
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
107 words
An article of furniture characterized in that it includes a plurality of sections each curved at its opposite ends according to the same radius of curvature, each section having notches at its opposite ends of a length twice that of said radius of curvature, and fastener means receivable in said notches of adjacent sections and coupling said sections together; said fastener means comprising a link having a length twice that of said notches and receivable in the notches of two adjacent sections, and a pair of pins for each link, each pin coupling one end of its link to one of the two adjacent sections coupled thereby.
Claim 2
Dependent Claim
107 words
An article of furniture characterized in that it includes a plurality of sections each curved at its opposite ends according to the same radius of curvature, each section having notches at its opposite ends of a length twice that of said radius of curvature, and fastener means receivable in said notches of adjacent sections and coupling said sections together; said fastener means comprising a link having a length twice that of said notches and receivable in the notches of two adjacent sections, and a pair of pins for each link, each pin coupling one end of its link to one of the two adjacent sections coupled thereby.
Claim 3
Dependent Claim
19 words
The article of furniture according to claim 1, wherein said links are formed with sockets for receiving said pins.
Claim 4
Dependent Claim
22 words
The article of furniture according to claim 2, wherein said pins are separate members received within said sockets formed in said links.
Claim 5
Dependent Claim
30 words
The article of furniture according to claim 3, wherein said pins and sockets are formed with complementary interengaging splines to fix said plurality of assembled sections in predetermined angular positions.
Claim 6
Dependent Claim
34 words
The article of furniture according to claim 3, wherein said pins and sockets are all unsplined to permit separality of assembled sections to be pivoted to different angular positions without removal of said pins.
Claim 7
Dependent Claim
16 words
The article of furniture according to claim 2, wherein said pins are fixed to said sections.
Claim 8
Dependent Claim
16 words
The article of furniture according to claim 6, wherein said pins are formed with conical heads.
Claim 9
Dependent Claim
22 words
The article of furniture according to claim 6, wherein said links are formed with bores constituting said sockets for receiving said pins.
Claim 10
Dependent Claim
14 words
The article of furniture according to claim 8, wherein said pins are of "+"-cross-section.
Claim 11
Dependent Claim
23 words
The article of furniture according to claim 6, wherein said links are formed with slotted ribs constituting said sockets for receiving said pins.
Claim 12
Dependent Claim
78 words
The article of furniture according to claim 10, wherein said pins are of "+"-cross-section, and said ribs in the links are slotted to receive the pins in a plurality of positions, including an open position wherein each end of the link forms an angle of 0° with respect to the two sections coupled thereby, and a folded closed position wherein each end of the link forms an angle of 90° with respect to the two sections coupled thereby.
Claim 13
Dependent Claim
46 words
The article of furniture according to claim 11, wherein said links are slotted to receive the pins in a third position, wherein each end of each link forms an angle of 45°, such that the two sections coupled thereby are fixed at 90° to each other.
Claim 14
Dependent Claim
89 words
The article of furniture according to claim 1, wherein each of said sections is formed of sheet material having a downwardly bent flange, said article of furniture further including a pair of inwardly facing sockets formed in the underface of said sheet material, and legs receivable within said latter sockets and pivotable therein either to an extended position to support said sections horizontally for use, or to a folded position against its respective section to permit said sections to be folded compactly against each other for storage or transportation.
Claim 15
Dependent Claim
55 words
The article of furniture according to claim 13, wherein said legs are in the form of U-shaped members each including a pair of legs joined together by a bridge, each of said bridges being resilient to permit the respective leg member to be snapped into said inwardly facing sockets at the underside of each section.
Claim 16
Dependent Claim
126 words
An article of furniture characterized in that it includes a plurality of sections pivotably coupled to each other at their ends, each of said sections including a pair of inwardly facing sockets depending from one face thereof; and legs receivable within said sockets and pivotable therein either to an extended position to support said sections horizontally for use, or to a folded position folded against said sections to permit the sections to be folded compactly against each other for storage or transportation; said legs being constituted of U-shaped members each including a pair of legs joined together by a bridge, each of said bridges being resilient to permit the respective U-shaped member to be snapped into said sockets of the downwardly bent flanges for mounting therein.
Claim 17
Dependent Claim
126 words
An article of furniture characterized in that it includes a plurality of sections pivotably coupled to each other at their ends, each of said sections including a pair of inwardly facing sockets depending from one face thereof; and legs receivable within said sockets and pivotable therein either to an extended position to support said sections horizontally for use, or to a folded position folded against said sections to permit the sections to be folded compactly against each other for storage or transportation; said legs being constituted of U-shaped members each including a pair of legs joined together by a bridge, each of said bridges being resilient to permit the respective U-shaped member to be snapped into said sockets of the downwardly bent flanges for mounting therein.
Claim 18
Dependent Claim
77 words
The article of furniture according to claim 15, wherein each of said sections is formed with a cam formation having a first cam surface engageable with the bridge of the respective U-shaped leg member in the extended, operative position thereof for maintaining same in said position, and a second cam surface separated from said first cam surface by a high point permitting the U-shaped leg member to be pivoted to its folded position for storage or transportation.
Claim 19
Dependent Claim
29 words
The article of furniture according to claim 15, wherein each of said sections is of plastic material, and each of said U-shaped leg members is also of plastic material.
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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) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |